Abstract

The precision spectral features of tryptophan-tryptophan (Trp-Trp) dipeptides on PSSS-templated silver nanoparticles (Ag NPs) were investigated by combining UV-visible absorption, surface enhanced Raman scattering (SERS), and fluorescence spectroscopy. The secondary surface plasmonic absorption band suggested the existence of the Ag NP dimer, bridged by two indole rings in Trp-Trp dipeptides. The proposed π-π stacking interaction provided excellent SERS spectrum showing the adsorption sites are indole ring moieties. The fluorescence intensity of Trp-Trp dipeptides was quenched by almost 30% with 0.5 ns increase in lifetime, due to charge transfer in the Trp-Trp dipeptides/silver system. The 0.5 ns lifetime was independent of emission wavelength.

© 2015 Optical Society of America

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  4. J. Xian, L. Chen, H. Niu, J. Qu, and J. Song, “Significant field enhancements in an individual silver nanoparticle near a substrate covered with a thin gain film,” Nanoscale 6(22), 13994–14001 (2014).
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  5. S. Baluschev, F. Yu, T. Miteva, S. Ahl, A. Yasuda, G. Nelles, W. Knoll, and G. Wegner, “Metal-enhanced up-conversion fluorescence: effective triplet-triplet annihilation near silver surface,” Nano Lett. 5(12), 2482–2484 (2005).
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  12. Y. Chen, L. Karvonen, A. Säynätjoki, C. Ye, A. Tervonen, and S. Honkanen, “Ag nanoparticles embedded in glass by two-step ion exchange and their SERS application,” Opt. Mater. Express 1(2), 164–172 (2011).
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    [Crossref] [PubMed]
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    [Crossref]
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    [Crossref] [PubMed]
  17. L. Seballos, N. Richards, D. J. Stevens, M. Patel, L. Kapitzky, S. Lokey, G. Millhauser, and J. Z. Zhang, “Competitive binding effects on surface-enhanced Raman scattering of peptide molecules,” Chem. Phys. Lett. 447(4-6), 335–339 (2007).
    [Crossref] [PubMed]
  18. M. Jia, H. Yi, M. Chang, X. Cao, L. Li, Z. Zhou, H. Pan, Y. Chen, S. Zhang, and J. Xu, “Fluorescence kinetics of Trp-Trp dipeptide and its derivatives in water via ultrafast fluorescence spectroscopy,” J. Photochem. Photobiol. B 149, 243–248 (2015).
    [Crossref] [PubMed]
  19. R. Swaminathan, G. Krishnamoorthy, and N. Periasamy, “Similarity of fluorescence lifetime distributions for single tryptophan proteins in the random coil state,” Biophys. J. 67(5), 2013–2023 (1994).
    [Crossref] [PubMed]
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    [Crossref] [PubMed]
  21. S. Stewart and P. M. Fredericks, “Surface-enhanced Raman spectroscopy of peptides and proteins adsorbed on an electrochemically prepared silver surface,” Spectrochim. Acta A 55(7–8), 1615–1640 (1999).
    [Crossref]
  22. A. Kandakkathara, I. Utkin, and R. Fedosejevs, “Surface-enhanced raman scattering (SERS) detection of low concentrations of tryptophan amino acid in silver colloid,” Appl. Spectrosc. 65(5), 507–513 (2011).
    [Crossref] [PubMed]
  23. F. Wei, D. Zhang, N. J. Halas, and J. D. Hartgerink, “Aromatic amino acids providing characteristic motifs in the Raman and SERS spectroscopy of peptides,” J. Phys. Chem. B 112(30), 9158–9164 (2008).
    [Crossref] [PubMed]
  24. S. K. Kim, M. S. Kim, and S. W. Suh, “Surface-enhanced Raman scattering (SERS) of aromatic amino acids and their glycyl dipeptides in silver sol,” J. Raman Spectrosc. 18(3), 171–175 (1987).
    [Crossref]
  25. J. Guicheteau, L. Argue, A. Hyre, M. Jacobson, and S. D. Christesen, ““Raman and surface-enhanced Raman spectroscopy of amino acids and nucleotide bases for target bacterial vibrational mode identification,” Proc. SPIE 6218,” Chemical and Biological Sensing VII, 62180O (2006).
  26. H. Lee, M. S. Kim, and S. W. Suh, “Raman spectroscopy of sulphur-containing amino acids and their derivatives adsorbed on silver,” J. Raman Spectrosc. 22(2), 91–96 (1991).
    [Crossref]
  27. A. E. Aliaga, I. Osorio-Román, P. Leyton, C. Garrido, J. Cárcamo, C. Caniulef, F. Célis, G. Díaz F, E. Clavijo, J. S. Gómez-Jeria, and M. M. Campos-Vallette, “G. Díaz F, E. Clavijo, J. S. Gómez-Jeria, and M. M. Campos-Vallette, “Surface-enhanced Raman scattering study of L-tryptophan,” J. Raman Spectrosc. 40(2), 164–169 (2009).
    [Crossref]
  28. J. A. Creighton, C. G. Blatchford, and M. G. Albrecht, “Plasma resonance enhancement of Raman scattering by pyridine adsorbed on silver or gold sol particles of size comparable to the excitation wavelength,” J. Chem. Soc., Faraday Trans. II 75(5), 790–798 (1979).
    [Crossref]
  29. H. Xu, E. J. Bjerneld, M. Käll, and L. Börjesson, “Spectroscopy of Single Hemoglobin Molecules by Surface Enhanced Raman Scattering,” Phys. Rev. Lett. 83(21), 4357–4360 (1999).
    [Crossref]
  30. T. Dadosh, Y. Gordin, R. Krahne, I. Khivrich, D. Mahalu, V. Frydman, J. Sperling, A. Yacoby, and I. Bar-Joseph, “Measurement of the conductance of single conjugated molecules,” Nature 436(7051), 677–680 (2005).
    [Crossref] [PubMed]

2015 (3)

S. Ye, J. Song, Y. Tian, L. Chen, D. Wang, H. Niu, and J. Qu, “Photochemically grown silver nanodecahedra with precise tuning of plasmonic resonance,” Nanoscale 7(29), 12706–12712 (2015).
[Crossref] [PubMed]

L. Xu, W. Yan, W. Ma, H. Kuang, X. Wu, L. Liu, Y. Zhao, L. Wang, and C. Xu, “SERS encoded silver pyramids for attomolar detection of multiplexed disease biomarkers,” Adv. Mater. 27(10), 1706–1711 (2015).
[Crossref] [PubMed]

M. Jia, H. Yi, M. Chang, X. Cao, L. Li, Z. Zhou, H. Pan, Y. Chen, S. Zhang, and J. Xu, “Fluorescence kinetics of Trp-Trp dipeptide and its derivatives in water via ultrafast fluorescence spectroscopy,” J. Photochem. Photobiol. B 149, 243–248 (2015).
[Crossref] [PubMed]

2014 (2)

Y. Wu, T. Hang, J. Komadina, H. Ling, and M. Li, “High-adhesive superhydrophobic 3D nanostructured silver films applied as sensitive, long-lived, reproducible and recyclable SERS substrates,” Nanoscale 6(16), 9720–9726 (2014).
[Crossref] [PubMed]

J. Xian, L. Chen, H. Niu, J. Qu, and J. Song, “Significant field enhancements in an individual silver nanoparticle near a substrate covered with a thin gain film,” Nanoscale 6(22), 13994–14001 (2014).
[Crossref] [PubMed]

2013 (1)

2012 (1)

N. Maiti, S. Thomas, J. A. Jacob, R. Chadha, T. Mukherjee, and S. Kapoor, “DFT and surface-enhanced Raman scattering study of tryptophan-silver complex,” J. Colloid Interface Sci. 380(1), 141–149 (2012).
[Crossref] [PubMed]

2011 (4)

G. Liu, H. Zheng, M. Liu, Z. Zhang, J. Dong, X. Yan, and X. Li, “Surface-enhanced fluorescence of rhodamine 6G on the assembled silver nanostructures,” J. Nanosci. Nanotechnol. 11(11), 9523–9527 (2011).
[Crossref] [PubMed]

M. Rycenga, C. M. Cobley, J. Zeng, W. Li, C. H. Moran, Q. Zhang, D. Qin, and Y. Xia, “Controlling the synthesis and assembly of silver nanostructures for plasmonic applications,” Chem. Rev. 111(6), 3669–3712 (2011).
[Crossref] [PubMed]

A. Kandakkathara, I. Utkin, and R. Fedosejevs, “Surface-enhanced raman scattering (SERS) detection of low concentrations of tryptophan amino acid in silver colloid,” Appl. Spectrosc. 65(5), 507–513 (2011).
[Crossref] [PubMed]

Y. Chen, L. Karvonen, A. Säynätjoki, C. Ye, A. Tervonen, and S. Honkanen, “Ag nanoparticles embedded in glass by two-step ion exchange and their SERS application,” Opt. Mater. Express 1(2), 164–172 (2011).
[Crossref]

2010 (1)

R. I. Stefureac, C. A. Madampage, O. Andrievskaia, and J. S. Lee, “Nanopore analysis of the interaction of metal ions with prion proteins and peptides,” Biochem. Cell Biol. 88(2), 347–358 (2010).
[Crossref] [PubMed]

2009 (3)

J. Xu and J. R. Knutson, “Quasi-static self-quenching of Trp-X and X-Trp dipeptides in water: ultrafast fluorescence decay,” J. Phys. Chem. B 113(35), 12084–12089 (2009).
[Crossref] [PubMed]

D. He, B. Hu, Q. F. Yao, K. Wang, and S. H. Yu, “Large-scale synthesis of flexible free-standing SERS substrates with high sensitivity: electrospun PVA nanofibers embedded with controlled alignment of silver nanoparticles,” ACS Nano 3(12), 3993–4002 (2009).
[Crossref] [PubMed]

A. E. Aliaga, I. Osorio-Román, P. Leyton, C. Garrido, J. Cárcamo, C. Caniulef, F. Célis, G. Díaz F, E. Clavijo, J. S. Gómez-Jeria, and M. M. Campos-Vallette, “G. Díaz F, E. Clavijo, J. S. Gómez-Jeria, and M. M. Campos-Vallette, “Surface-enhanced Raman scattering study of L-tryptophan,” J. Raman Spectrosc. 40(2), 164–169 (2009).
[Crossref]

2008 (2)

H. Chen, X. Su, K. G. Neoh, and W. S. Choe, “Probing the interaction between peptides and metal oxides using point mutants of a TiO2-binding peptide,” Langmuir 24(13), 6852–6857 (2008).
[Crossref] [PubMed]

F. Wei, D. Zhang, N. J. Halas, and J. D. Hartgerink, “Aromatic amino acids providing characteristic motifs in the Raman and SERS spectroscopy of peptides,” J. Phys. Chem. B 112(30), 9158–9164 (2008).
[Crossref] [PubMed]

2007 (2)

F. Tam, G. P. Goodrich, B. R. Johnson, and N. J. Halas, “Plasmonic enhancement of molecular fluorescence,” Nano Lett. 7(2), 496–501 (2007).
[Crossref] [PubMed]

L. Seballos, N. Richards, D. J. Stevens, M. Patel, L. Kapitzky, S. Lokey, G. Millhauser, and J. Z. Zhang, “Competitive binding effects on surface-enhanced Raman scattering of peptide molecules,” Chem. Phys. Lett. 447(4-6), 335–339 (2007).
[Crossref] [PubMed]

2006 (2)

S. Shanmukh, L. Jones, J. Driskell, Y. Zhao, R. Dluhy, and R. A. Tripp, “Rapid and sensitive detection of respiratory virus molecular signatures using a silver nanorod array SERS substrate,” Nano Lett. 6(11), 2630–2636 (2006).
[Crossref] [PubMed]

J. Guicheteau, L. Argue, A. Hyre, M. Jacobson, and S. D. Christesen, ““Raman and surface-enhanced Raman spectroscopy of amino acids and nucleotide bases for target bacterial vibrational mode identification,” Proc. SPIE 6218,” Chemical and Biological Sensing VII, 62180O (2006).

2005 (2)

T. Dadosh, Y. Gordin, R. Krahne, I. Khivrich, D. Mahalu, V. Frydman, J. Sperling, A. Yacoby, and I. Bar-Joseph, “Measurement of the conductance of single conjugated molecules,” Nature 436(7051), 677–680 (2005).
[Crossref] [PubMed]

S. Baluschev, F. Yu, T. Miteva, S. Ahl, A. Yasuda, G. Nelles, W. Knoll, and G. Wegner, “Metal-enhanced up-conversion fluorescence: effective triplet-triplet annihilation near silver surface,” Nano Lett. 5(12), 2482–2484 (2005).
[Crossref] [PubMed]

1999 (2)

S. Stewart and P. M. Fredericks, “Surface-enhanced Raman spectroscopy of peptides and proteins adsorbed on an electrochemically prepared silver surface,” Spectrochim. Acta A 55(7–8), 1615–1640 (1999).
[Crossref]

H. Xu, E. J. Bjerneld, M. Käll, and L. Börjesson, “Spectroscopy of Single Hemoglobin Molecules by Surface Enhanced Raman Scattering,” Phys. Rev. Lett. 83(21), 4357–4360 (1999).
[Crossref]

1994 (1)

R. Swaminathan, G. Krishnamoorthy, and N. Periasamy, “Similarity of fluorescence lifetime distributions for single tryptophan proteins in the random coil state,” Biophys. J. 67(5), 2013–2023 (1994).
[Crossref] [PubMed]

1991 (2)

T. M. Herne, A. Ahern, and R. L. Garrell, “Surface-enhanced Raman spectroscopy of peptides: preferential N-terminal adsorption on colloidal silver,” J. Am. Chem. Soc. 113(3), 846–854 (1991).
[Crossref]

H. Lee, M. S. Kim, and S. W. Suh, “Raman spectroscopy of sulphur-containing amino acids and their derivatives adsorbed on silver,” J. Raman Spectrosc. 22(2), 91–96 (1991).
[Crossref]

1987 (1)

S. K. Kim, M. S. Kim, and S. W. Suh, “Surface-enhanced Raman scattering (SERS) of aromatic amino acids and their glycyl dipeptides in silver sol,” J. Raman Spectrosc. 18(3), 171–175 (1987).
[Crossref]

1979 (1)

J. A. Creighton, C. G. Blatchford, and M. G. Albrecht, “Plasma resonance enhancement of Raman scattering by pyridine adsorbed on silver or gold sol particles of size comparable to the excitation wavelength,” J. Chem. Soc., Faraday Trans. II 75(5), 790–798 (1979).
[Crossref]

Ahern, A.

T. M. Herne, A. Ahern, and R. L. Garrell, “Surface-enhanced Raman spectroscopy of peptides: preferential N-terminal adsorption on colloidal silver,” J. Am. Chem. Soc. 113(3), 846–854 (1991).
[Crossref]

Ahl, S.

S. Baluschev, F. Yu, T. Miteva, S. Ahl, A. Yasuda, G. Nelles, W. Knoll, and G. Wegner, “Metal-enhanced up-conversion fluorescence: effective triplet-triplet annihilation near silver surface,” Nano Lett. 5(12), 2482–2484 (2005).
[Crossref] [PubMed]

Albrecht, M. G.

J. A. Creighton, C. G. Blatchford, and M. G. Albrecht, “Plasma resonance enhancement of Raman scattering by pyridine adsorbed on silver or gold sol particles of size comparable to the excitation wavelength,” J. Chem. Soc., Faraday Trans. II 75(5), 790–798 (1979).
[Crossref]

Aliaga, A. E.

A. E. Aliaga, I. Osorio-Román, P. Leyton, C. Garrido, J. Cárcamo, C. Caniulef, F. Célis, G. Díaz F, E. Clavijo, J. S. Gómez-Jeria, and M. M. Campos-Vallette, “G. Díaz F, E. Clavijo, J. S. Gómez-Jeria, and M. M. Campos-Vallette, “Surface-enhanced Raman scattering study of L-tryptophan,” J. Raman Spectrosc. 40(2), 164–169 (2009).
[Crossref]

Andrievskaia, O.

R. I. Stefureac, C. A. Madampage, O. Andrievskaia, and J. S. Lee, “Nanopore analysis of the interaction of metal ions with prion proteins and peptides,” Biochem. Cell Biol. 88(2), 347–358 (2010).
[Crossref] [PubMed]

Argue, L.

J. Guicheteau, L. Argue, A. Hyre, M. Jacobson, and S. D. Christesen, ““Raman and surface-enhanced Raman spectroscopy of amino acids and nucleotide bases for target bacterial vibrational mode identification,” Proc. SPIE 6218,” Chemical and Biological Sensing VII, 62180O (2006).

Baluschev, S.

S. Baluschev, F. Yu, T. Miteva, S. Ahl, A. Yasuda, G. Nelles, W. Knoll, and G. Wegner, “Metal-enhanced up-conversion fluorescence: effective triplet-triplet annihilation near silver surface,” Nano Lett. 5(12), 2482–2484 (2005).
[Crossref] [PubMed]

Bar-Joseph, I.

T. Dadosh, Y. Gordin, R. Krahne, I. Khivrich, D. Mahalu, V. Frydman, J. Sperling, A. Yacoby, and I. Bar-Joseph, “Measurement of the conductance of single conjugated molecules,” Nature 436(7051), 677–680 (2005).
[Crossref] [PubMed]

Bjerneld, E. J.

H. Xu, E. J. Bjerneld, M. Käll, and L. Börjesson, “Spectroscopy of Single Hemoglobin Molecules by Surface Enhanced Raman Scattering,” Phys. Rev. Lett. 83(21), 4357–4360 (1999).
[Crossref]

Blatchford, C. G.

J. A. Creighton, C. G. Blatchford, and M. G. Albrecht, “Plasma resonance enhancement of Raman scattering by pyridine adsorbed on silver or gold sol particles of size comparable to the excitation wavelength,” J. Chem. Soc., Faraday Trans. II 75(5), 790–798 (1979).
[Crossref]

Börjesson, L.

H. Xu, E. J. Bjerneld, M. Käll, and L. Börjesson, “Spectroscopy of Single Hemoglobin Molecules by Surface Enhanced Raman Scattering,” Phys. Rev. Lett. 83(21), 4357–4360 (1999).
[Crossref]

Campos-Vallette, M. M.

A. E. Aliaga, I. Osorio-Román, P. Leyton, C. Garrido, J. Cárcamo, C. Caniulef, F. Célis, G. Díaz F, E. Clavijo, J. S. Gómez-Jeria, and M. M. Campos-Vallette, “G. Díaz F, E. Clavijo, J. S. Gómez-Jeria, and M. M. Campos-Vallette, “Surface-enhanced Raman scattering study of L-tryptophan,” J. Raman Spectrosc. 40(2), 164–169 (2009).
[Crossref]

Caniulef, C.

A. E. Aliaga, I. Osorio-Román, P. Leyton, C. Garrido, J. Cárcamo, C. Caniulef, F. Célis, G. Díaz F, E. Clavijo, J. S. Gómez-Jeria, and M. M. Campos-Vallette, “G. Díaz F, E. Clavijo, J. S. Gómez-Jeria, and M. M. Campos-Vallette, “Surface-enhanced Raman scattering study of L-tryptophan,” J. Raman Spectrosc. 40(2), 164–169 (2009).
[Crossref]

Cao, X.

M. Jia, H. Yi, M. Chang, X. Cao, L. Li, Z. Zhou, H. Pan, Y. Chen, S. Zhang, and J. Xu, “Fluorescence kinetics of Trp-Trp dipeptide and its derivatives in water via ultrafast fluorescence spectroscopy,” J. Photochem. Photobiol. B 149, 243–248 (2015).
[Crossref] [PubMed]

Cárcamo, J.

A. E. Aliaga, I. Osorio-Román, P. Leyton, C. Garrido, J. Cárcamo, C. Caniulef, F. Célis, G. Díaz F, E. Clavijo, J. S. Gómez-Jeria, and M. M. Campos-Vallette, “G. Díaz F, E. Clavijo, J. S. Gómez-Jeria, and M. M. Campos-Vallette, “Surface-enhanced Raman scattering study of L-tryptophan,” J. Raman Spectrosc. 40(2), 164–169 (2009).
[Crossref]

Célis, F.

A. E. Aliaga, I. Osorio-Román, P. Leyton, C. Garrido, J. Cárcamo, C. Caniulef, F. Célis, G. Díaz F, E. Clavijo, J. S. Gómez-Jeria, and M. M. Campos-Vallette, “G. Díaz F, E. Clavijo, J. S. Gómez-Jeria, and M. M. Campos-Vallette, “Surface-enhanced Raman scattering study of L-tryptophan,” J. Raman Spectrosc. 40(2), 164–169 (2009).
[Crossref]

Chadha, R.

N. Maiti, S. Thomas, J. A. Jacob, R. Chadha, T. Mukherjee, and S. Kapoor, “DFT and surface-enhanced Raman scattering study of tryptophan-silver complex,” J. Colloid Interface Sci. 380(1), 141–149 (2012).
[Crossref] [PubMed]

Chang, M.

M. Jia, H. Yi, M. Chang, X. Cao, L. Li, Z. Zhou, H. Pan, Y. Chen, S. Zhang, and J. Xu, “Fluorescence kinetics of Trp-Trp dipeptide and its derivatives in water via ultrafast fluorescence spectroscopy,” J. Photochem. Photobiol. B 149, 243–248 (2015).
[Crossref] [PubMed]

Chen, H.

H. Chen, X. Su, K. G. Neoh, and W. S. Choe, “Probing the interaction between peptides and metal oxides using point mutants of a TiO2-binding peptide,” Langmuir 24(13), 6852–6857 (2008).
[Crossref] [PubMed]

Chen, L.

S. Ye, J. Song, Y. Tian, L. Chen, D. Wang, H. Niu, and J. Qu, “Photochemically grown silver nanodecahedra with precise tuning of plasmonic resonance,” Nanoscale 7(29), 12706–12712 (2015).
[Crossref] [PubMed]

J. Xian, L. Chen, H. Niu, J. Qu, and J. Song, “Significant field enhancements in an individual silver nanoparticle near a substrate covered with a thin gain film,” Nanoscale 6(22), 13994–14001 (2014).
[Crossref] [PubMed]

Chen, Y.

M. Jia, H. Yi, M. Chang, X. Cao, L. Li, Z. Zhou, H. Pan, Y. Chen, S. Zhang, and J. Xu, “Fluorescence kinetics of Trp-Trp dipeptide and its derivatives in water via ultrafast fluorescence spectroscopy,” J. Photochem. Photobiol. B 149, 243–248 (2015).
[Crossref] [PubMed]

Y. Chen, L. Karvonen, A. Säynätjoki, C. Ye, A. Tervonen, and S. Honkanen, “Ag nanoparticles embedded in glass by two-step ion exchange and their SERS application,” Opt. Mater. Express 1(2), 164–172 (2011).
[Crossref]

Choe, W. S.

H. Chen, X. Su, K. G. Neoh, and W. S. Choe, “Probing the interaction between peptides and metal oxides using point mutants of a TiO2-binding peptide,” Langmuir 24(13), 6852–6857 (2008).
[Crossref] [PubMed]

Christesen, S. D.

J. Guicheteau, L. Argue, A. Hyre, M. Jacobson, and S. D. Christesen, ““Raman and surface-enhanced Raman spectroscopy of amino acids and nucleotide bases for target bacterial vibrational mode identification,” Proc. SPIE 6218,” Chemical and Biological Sensing VII, 62180O (2006).

Clavijo, E.

A. E. Aliaga, I. Osorio-Román, P. Leyton, C. Garrido, J. Cárcamo, C. Caniulef, F. Célis, G. Díaz F, E. Clavijo, J. S. Gómez-Jeria, and M. M. Campos-Vallette, “G. Díaz F, E. Clavijo, J. S. Gómez-Jeria, and M. M. Campos-Vallette, “Surface-enhanced Raman scattering study of L-tryptophan,” J. Raman Spectrosc. 40(2), 164–169 (2009).
[Crossref]

Cobley, C. M.

M. Rycenga, C. M. Cobley, J. Zeng, W. Li, C. H. Moran, Q. Zhang, D. Qin, and Y. Xia, “Controlling the synthesis and assembly of silver nanostructures for plasmonic applications,” Chem. Rev. 111(6), 3669–3712 (2011).
[Crossref] [PubMed]

Creighton, J. A.

J. A. Creighton, C. G. Blatchford, and M. G. Albrecht, “Plasma resonance enhancement of Raman scattering by pyridine adsorbed on silver or gold sol particles of size comparable to the excitation wavelength,” J. Chem. Soc., Faraday Trans. II 75(5), 790–798 (1979).
[Crossref]

Dadosh, T.

T. Dadosh, Y. Gordin, R. Krahne, I. Khivrich, D. Mahalu, V. Frydman, J. Sperling, A. Yacoby, and I. Bar-Joseph, “Measurement of the conductance of single conjugated molecules,” Nature 436(7051), 677–680 (2005).
[Crossref] [PubMed]

Díaz F, G.

A. E. Aliaga, I. Osorio-Román, P. Leyton, C. Garrido, J. Cárcamo, C. Caniulef, F. Célis, G. Díaz F, E. Clavijo, J. S. Gómez-Jeria, and M. M. Campos-Vallette, “G. Díaz F, E. Clavijo, J. S. Gómez-Jeria, and M. M. Campos-Vallette, “Surface-enhanced Raman scattering study of L-tryptophan,” J. Raman Spectrosc. 40(2), 164–169 (2009).
[Crossref]

Dluhy, R.

S. Shanmukh, L. Jones, J. Driskell, Y. Zhao, R. Dluhy, and R. A. Tripp, “Rapid and sensitive detection of respiratory virus molecular signatures using a silver nanorod array SERS substrate,” Nano Lett. 6(11), 2630–2636 (2006).
[Crossref] [PubMed]

Dong, J.

G. Liu, H. Zheng, M. Liu, Z. Zhang, J. Dong, X. Yan, and X. Li, “Surface-enhanced fluorescence of rhodamine 6G on the assembled silver nanostructures,” J. Nanosci. Nanotechnol. 11(11), 9523–9527 (2011).
[Crossref] [PubMed]

Driskell, J.

S. Shanmukh, L. Jones, J. Driskell, Y. Zhao, R. Dluhy, and R. A. Tripp, “Rapid and sensitive detection of respiratory virus molecular signatures using a silver nanorod array SERS substrate,” Nano Lett. 6(11), 2630–2636 (2006).
[Crossref] [PubMed]

Fedosejevs, R.

Fredericks, P. M.

S. Stewart and P. M. Fredericks, “Surface-enhanced Raman spectroscopy of peptides and proteins adsorbed on an electrochemically prepared silver surface,” Spectrochim. Acta A 55(7–8), 1615–1640 (1999).
[Crossref]

Frydman, V.

T. Dadosh, Y. Gordin, R. Krahne, I. Khivrich, D. Mahalu, V. Frydman, J. Sperling, A. Yacoby, and I. Bar-Joseph, “Measurement of the conductance of single conjugated molecules,” Nature 436(7051), 677–680 (2005).
[Crossref] [PubMed]

Garrell, R. L.

T. M. Herne, A. Ahern, and R. L. Garrell, “Surface-enhanced Raman spectroscopy of peptides: preferential N-terminal adsorption on colloidal silver,” J. Am. Chem. Soc. 113(3), 846–854 (1991).
[Crossref]

Garrido, C.

A. E. Aliaga, I. Osorio-Román, P. Leyton, C. Garrido, J. Cárcamo, C. Caniulef, F. Célis, G. Díaz F, E. Clavijo, J. S. Gómez-Jeria, and M. M. Campos-Vallette, “G. Díaz F, E. Clavijo, J. S. Gómez-Jeria, and M. M. Campos-Vallette, “Surface-enhanced Raman scattering study of L-tryptophan,” J. Raman Spectrosc. 40(2), 164–169 (2009).
[Crossref]

Gérard, D.

Gómez-Jeria, J. S.

A. E. Aliaga, I. Osorio-Román, P. Leyton, C. Garrido, J. Cárcamo, C. Caniulef, F. Célis, G. Díaz F, E. Clavijo, J. S. Gómez-Jeria, and M. M. Campos-Vallette, “G. Díaz F, E. Clavijo, J. S. Gómez-Jeria, and M. M. Campos-Vallette, “Surface-enhanced Raman scattering study of L-tryptophan,” J. Raman Spectrosc. 40(2), 164–169 (2009).
[Crossref]

Goodrich, G. P.

F. Tam, G. P. Goodrich, B. R. Johnson, and N. J. Halas, “Plasmonic enhancement of molecular fluorescence,” Nano Lett. 7(2), 496–501 (2007).
[Crossref] [PubMed]

Gordin, Y.

T. Dadosh, Y. Gordin, R. Krahne, I. Khivrich, D. Mahalu, V. Frydman, J. Sperling, A. Yacoby, and I. Bar-Joseph, “Measurement of the conductance of single conjugated molecules,” Nature 436(7051), 677–680 (2005).
[Crossref] [PubMed]

Guicheteau, J.

J. Guicheteau, L. Argue, A. Hyre, M. Jacobson, and S. D. Christesen, ““Raman and surface-enhanced Raman spectroscopy of amino acids and nucleotide bases for target bacterial vibrational mode identification,” Proc. SPIE 6218,” Chemical and Biological Sensing VII, 62180O (2006).

Halas, N. J.

F. Wei, D. Zhang, N. J. Halas, and J. D. Hartgerink, “Aromatic amino acids providing characteristic motifs in the Raman and SERS spectroscopy of peptides,” J. Phys. Chem. B 112(30), 9158–9164 (2008).
[Crossref] [PubMed]

F. Tam, G. P. Goodrich, B. R. Johnson, and N. J. Halas, “Plasmonic enhancement of molecular fluorescence,” Nano Lett. 7(2), 496–501 (2007).
[Crossref] [PubMed]

Hang, T.

Y. Wu, T. Hang, J. Komadina, H. Ling, and M. Li, “High-adhesive superhydrophobic 3D nanostructured silver films applied as sensitive, long-lived, reproducible and recyclable SERS substrates,” Nanoscale 6(16), 9720–9726 (2014).
[Crossref] [PubMed]

Hartgerink, J. D.

F. Wei, D. Zhang, N. J. Halas, and J. D. Hartgerink, “Aromatic amino acids providing characteristic motifs in the Raman and SERS spectroscopy of peptides,” J. Phys. Chem. B 112(30), 9158–9164 (2008).
[Crossref] [PubMed]

He, D.

D. He, B. Hu, Q. F. Yao, K. Wang, and S. H. Yu, “Large-scale synthesis of flexible free-standing SERS substrates with high sensitivity: electrospun PVA nanofibers embedded with controlled alignment of silver nanoparticles,” ACS Nano 3(12), 3993–4002 (2009).
[Crossref] [PubMed]

Herne, T. M.

T. M. Herne, A. Ahern, and R. L. Garrell, “Surface-enhanced Raman spectroscopy of peptides: preferential N-terminal adsorption on colloidal silver,” J. Am. Chem. Soc. 113(3), 846–854 (1991).
[Crossref]

Honkanen, S.

Hu, B.

D. He, B. Hu, Q. F. Yao, K. Wang, and S. H. Yu, “Large-scale synthesis of flexible free-standing SERS substrates with high sensitivity: electrospun PVA nanofibers embedded with controlled alignment of silver nanoparticles,” ACS Nano 3(12), 3993–4002 (2009).
[Crossref] [PubMed]

Hyre, A.

J. Guicheteau, L. Argue, A. Hyre, M. Jacobson, and S. D. Christesen, ““Raman and surface-enhanced Raman spectroscopy of amino acids and nucleotide bases for target bacterial vibrational mode identification,” Proc. SPIE 6218,” Chemical and Biological Sensing VII, 62180O (2006).

Jacob, J. A.

N. Maiti, S. Thomas, J. A. Jacob, R. Chadha, T. Mukherjee, and S. Kapoor, “DFT and surface-enhanced Raman scattering study of tryptophan-silver complex,” J. Colloid Interface Sci. 380(1), 141–149 (2012).
[Crossref] [PubMed]

Jacobson, M.

J. Guicheteau, L. Argue, A. Hyre, M. Jacobson, and S. D. Christesen, ““Raman and surface-enhanced Raman spectroscopy of amino acids and nucleotide bases for target bacterial vibrational mode identification,” Proc. SPIE 6218,” Chemical and Biological Sensing VII, 62180O (2006).

Jia, M.

M. Jia, H. Yi, M. Chang, X. Cao, L. Li, Z. Zhou, H. Pan, Y. Chen, S. Zhang, and J. Xu, “Fluorescence kinetics of Trp-Trp dipeptide and its derivatives in water via ultrafast fluorescence spectroscopy,” J. Photochem. Photobiol. B 149, 243–248 (2015).
[Crossref] [PubMed]

Johnson, B. R.

F. Tam, G. P. Goodrich, B. R. Johnson, and N. J. Halas, “Plasmonic enhancement of molecular fluorescence,” Nano Lett. 7(2), 496–501 (2007).
[Crossref] [PubMed]

Jones, L.

S. Shanmukh, L. Jones, J. Driskell, Y. Zhao, R. Dluhy, and R. A. Tripp, “Rapid and sensitive detection of respiratory virus molecular signatures using a silver nanorod array SERS substrate,” Nano Lett. 6(11), 2630–2636 (2006).
[Crossref] [PubMed]

Käll, M.

H. Xu, E. J. Bjerneld, M. Käll, and L. Börjesson, “Spectroscopy of Single Hemoglobin Molecules by Surface Enhanced Raman Scattering,” Phys. Rev. Lett. 83(21), 4357–4360 (1999).
[Crossref]

Kandakkathara, A.

Kapitzky, L.

L. Seballos, N. Richards, D. J. Stevens, M. Patel, L. Kapitzky, S. Lokey, G. Millhauser, and J. Z. Zhang, “Competitive binding effects on surface-enhanced Raman scattering of peptide molecules,” Chem. Phys. Lett. 447(4-6), 335–339 (2007).
[Crossref] [PubMed]

Kapoor, S.

N. Maiti, S. Thomas, J. A. Jacob, R. Chadha, T. Mukherjee, and S. Kapoor, “DFT and surface-enhanced Raman scattering study of tryptophan-silver complex,” J. Colloid Interface Sci. 380(1), 141–149 (2012).
[Crossref] [PubMed]

Karvonen, L.

Khivrich, I.

T. Dadosh, Y. Gordin, R. Krahne, I. Khivrich, D. Mahalu, V. Frydman, J. Sperling, A. Yacoby, and I. Bar-Joseph, “Measurement of the conductance of single conjugated molecules,” Nature 436(7051), 677–680 (2005).
[Crossref] [PubMed]

Kim, M. S.

H. Lee, M. S. Kim, and S. W. Suh, “Raman spectroscopy of sulphur-containing amino acids and their derivatives adsorbed on silver,” J. Raman Spectrosc. 22(2), 91–96 (1991).
[Crossref]

S. K. Kim, M. S. Kim, and S. W. Suh, “Surface-enhanced Raman scattering (SERS) of aromatic amino acids and their glycyl dipeptides in silver sol,” J. Raman Spectrosc. 18(3), 171–175 (1987).
[Crossref]

Kim, S. K.

S. K. Kim, M. S. Kim, and S. W. Suh, “Surface-enhanced Raman scattering (SERS) of aromatic amino acids and their glycyl dipeptides in silver sol,” J. Raman Spectrosc. 18(3), 171–175 (1987).
[Crossref]

Knoll, W.

S. Baluschev, F. Yu, T. Miteva, S. Ahl, A. Yasuda, G. Nelles, W. Knoll, and G. Wegner, “Metal-enhanced up-conversion fluorescence: effective triplet-triplet annihilation near silver surface,” Nano Lett. 5(12), 2482–2484 (2005).
[Crossref] [PubMed]

Knutson, J. R.

J. Xu and J. R. Knutson, “Quasi-static self-quenching of Trp-X and X-Trp dipeptides in water: ultrafast fluorescence decay,” J. Phys. Chem. B 113(35), 12084–12089 (2009).
[Crossref] [PubMed]

Komadina, J.

Y. Wu, T. Hang, J. Komadina, H. Ling, and M. Li, “High-adhesive superhydrophobic 3D nanostructured silver films applied as sensitive, long-lived, reproducible and recyclable SERS substrates,” Nanoscale 6(16), 9720–9726 (2014).
[Crossref] [PubMed]

Krahne, R.

T. Dadosh, Y. Gordin, R. Krahne, I. Khivrich, D. Mahalu, V. Frydman, J. Sperling, A. Yacoby, and I. Bar-Joseph, “Measurement of the conductance of single conjugated molecules,” Nature 436(7051), 677–680 (2005).
[Crossref] [PubMed]

Krishnamoorthy, G.

R. Swaminathan, G. Krishnamoorthy, and N. Periasamy, “Similarity of fluorescence lifetime distributions for single tryptophan proteins in the random coil state,” Biophys. J. 67(5), 2013–2023 (1994).
[Crossref] [PubMed]

Kuang, H.

L. Xu, W. Yan, W. Ma, H. Kuang, X. Wu, L. Liu, Y. Zhao, L. Wang, and C. Xu, “SERS encoded silver pyramids for attomolar detection of multiplexed disease biomarkers,” Adv. Mater. 27(10), 1706–1711 (2015).
[Crossref] [PubMed]

Lee, H.

H. Lee, M. S. Kim, and S. W. Suh, “Raman spectroscopy of sulphur-containing amino acids and their derivatives adsorbed on silver,” J. Raman Spectrosc. 22(2), 91–96 (1991).
[Crossref]

Lee, J. S.

R. I. Stefureac, C. A. Madampage, O. Andrievskaia, and J. S. Lee, “Nanopore analysis of the interaction of metal ions with prion proteins and peptides,” Biochem. Cell Biol. 88(2), 347–358 (2010).
[Crossref] [PubMed]

Leyton, P.

A. E. Aliaga, I. Osorio-Román, P. Leyton, C. Garrido, J. Cárcamo, C. Caniulef, F. Célis, G. Díaz F, E. Clavijo, J. S. Gómez-Jeria, and M. M. Campos-Vallette, “G. Díaz F, E. Clavijo, J. S. Gómez-Jeria, and M. M. Campos-Vallette, “Surface-enhanced Raman scattering study of L-tryptophan,” J. Raman Spectrosc. 40(2), 164–169 (2009).
[Crossref]

Li, L.

M. Jia, H. Yi, M. Chang, X. Cao, L. Li, Z. Zhou, H. Pan, Y. Chen, S. Zhang, and J. Xu, “Fluorescence kinetics of Trp-Trp dipeptide and its derivatives in water via ultrafast fluorescence spectroscopy,” J. Photochem. Photobiol. B 149, 243–248 (2015).
[Crossref] [PubMed]

Li, M.

Y. Wu, T. Hang, J. Komadina, H. Ling, and M. Li, “High-adhesive superhydrophobic 3D nanostructured silver films applied as sensitive, long-lived, reproducible and recyclable SERS substrates,” Nanoscale 6(16), 9720–9726 (2014).
[Crossref] [PubMed]

Li, W.

M. Rycenga, C. M. Cobley, J. Zeng, W. Li, C. H. Moran, Q. Zhang, D. Qin, and Y. Xia, “Controlling the synthesis and assembly of silver nanostructures for plasmonic applications,” Chem. Rev. 111(6), 3669–3712 (2011).
[Crossref] [PubMed]

Li, X.

G. Liu, H. Zheng, M. Liu, Z. Zhang, J. Dong, X. Yan, and X. Li, “Surface-enhanced fluorescence of rhodamine 6G on the assembled silver nanostructures,” J. Nanosci. Nanotechnol. 11(11), 9523–9527 (2011).
[Crossref] [PubMed]

Ling, H.

Y. Wu, T. Hang, J. Komadina, H. Ling, and M. Li, “High-adhesive superhydrophobic 3D nanostructured silver films applied as sensitive, long-lived, reproducible and recyclable SERS substrates,” Nanoscale 6(16), 9720–9726 (2014).
[Crossref] [PubMed]

Liu, G.

G. Liu, H. Zheng, M. Liu, Z. Zhang, J. Dong, X. Yan, and X. Li, “Surface-enhanced fluorescence of rhodamine 6G on the assembled silver nanostructures,” J. Nanosci. Nanotechnol. 11(11), 9523–9527 (2011).
[Crossref] [PubMed]

Liu, L.

L. Xu, W. Yan, W. Ma, H. Kuang, X. Wu, L. Liu, Y. Zhao, L. Wang, and C. Xu, “SERS encoded silver pyramids for attomolar detection of multiplexed disease biomarkers,” Adv. Mater. 27(10), 1706–1711 (2015).
[Crossref] [PubMed]

Liu, M.

G. Liu, H. Zheng, M. Liu, Z. Zhang, J. Dong, X. Yan, and X. Li, “Surface-enhanced fluorescence of rhodamine 6G on the assembled silver nanostructures,” J. Nanosci. Nanotechnol. 11(11), 9523–9527 (2011).
[Crossref] [PubMed]

Lokey, S.

L. Seballos, N. Richards, D. J. Stevens, M. Patel, L. Kapitzky, S. Lokey, G. Millhauser, and J. Z. Zhang, “Competitive binding effects on surface-enhanced Raman scattering of peptide molecules,” Chem. Phys. Lett. 447(4-6), 335–339 (2007).
[Crossref] [PubMed]

Ma, W.

L. Xu, W. Yan, W. Ma, H. Kuang, X. Wu, L. Liu, Y. Zhao, L. Wang, and C. Xu, “SERS encoded silver pyramids for attomolar detection of multiplexed disease biomarkers,” Adv. Mater. 27(10), 1706–1711 (2015).
[Crossref] [PubMed]

Madampage, C. A.

R. I. Stefureac, C. A. Madampage, O. Andrievskaia, and J. S. Lee, “Nanopore analysis of the interaction of metal ions with prion proteins and peptides,” Biochem. Cell Biol. 88(2), 347–358 (2010).
[Crossref] [PubMed]

Mahalu, D.

T. Dadosh, Y. Gordin, R. Krahne, I. Khivrich, D. Mahalu, V. Frydman, J. Sperling, A. Yacoby, and I. Bar-Joseph, “Measurement of the conductance of single conjugated molecules,” Nature 436(7051), 677–680 (2005).
[Crossref] [PubMed]

Maiti, N.

N. Maiti, S. Thomas, J. A. Jacob, R. Chadha, T. Mukherjee, and S. Kapoor, “DFT and surface-enhanced Raman scattering study of tryptophan-silver complex,” J. Colloid Interface Sci. 380(1), 141–149 (2012).
[Crossref] [PubMed]

Martin, J.

Millhauser, G.

L. Seballos, N. Richards, D. J. Stevens, M. Patel, L. Kapitzky, S. Lokey, G. Millhauser, and J. Z. Zhang, “Competitive binding effects on surface-enhanced Raman scattering of peptide molecules,” Chem. Phys. Lett. 447(4-6), 335–339 (2007).
[Crossref] [PubMed]

Miteva, T.

S. Baluschev, F. Yu, T. Miteva, S. Ahl, A. Yasuda, G. Nelles, W. Knoll, and G. Wegner, “Metal-enhanced up-conversion fluorescence: effective triplet-triplet annihilation near silver surface,” Nano Lett. 5(12), 2482–2484 (2005).
[Crossref] [PubMed]

Moran, C. H.

M. Rycenga, C. M. Cobley, J. Zeng, W. Li, C. H. Moran, Q. Zhang, D. Qin, and Y. Xia, “Controlling the synthesis and assembly of silver nanostructures for plasmonic applications,” Chem. Rev. 111(6), 3669–3712 (2011).
[Crossref] [PubMed]

Mukherjee, T.

N. Maiti, S. Thomas, J. A. Jacob, R. Chadha, T. Mukherjee, and S. Kapoor, “DFT and surface-enhanced Raman scattering study of tryptophan-silver complex,” J. Colloid Interface Sci. 380(1), 141–149 (2012).
[Crossref] [PubMed]

Nelles, G.

S. Baluschev, F. Yu, T. Miteva, S. Ahl, A. Yasuda, G. Nelles, W. Knoll, and G. Wegner, “Metal-enhanced up-conversion fluorescence: effective triplet-triplet annihilation near silver surface,” Nano Lett. 5(12), 2482–2484 (2005).
[Crossref] [PubMed]

Neoh, K. G.

H. Chen, X. Su, K. G. Neoh, and W. S. Choe, “Probing the interaction between peptides and metal oxides using point mutants of a TiO2-binding peptide,” Langmuir 24(13), 6852–6857 (2008).
[Crossref] [PubMed]

Niu, H.

S. Ye, J. Song, Y. Tian, L. Chen, D. Wang, H. Niu, and J. Qu, “Photochemically grown silver nanodecahedra with precise tuning of plasmonic resonance,” Nanoscale 7(29), 12706–12712 (2015).
[Crossref] [PubMed]

J. Xian, L. Chen, H. Niu, J. Qu, and J. Song, “Significant field enhancements in an individual silver nanoparticle near a substrate covered with a thin gain film,” Nanoscale 6(22), 13994–14001 (2014).
[Crossref] [PubMed]

Osorio-Román, I.

A. E. Aliaga, I. Osorio-Román, P. Leyton, C. Garrido, J. Cárcamo, C. Caniulef, F. Célis, G. Díaz F, E. Clavijo, J. S. Gómez-Jeria, and M. M. Campos-Vallette, “G. Díaz F, E. Clavijo, J. S. Gómez-Jeria, and M. M. Campos-Vallette, “Surface-enhanced Raman scattering study of L-tryptophan,” J. Raman Spectrosc. 40(2), 164–169 (2009).
[Crossref]

Pan, H.

M. Jia, H. Yi, M. Chang, X. Cao, L. Li, Z. Zhou, H. Pan, Y. Chen, S. Zhang, and J. Xu, “Fluorescence kinetics of Trp-Trp dipeptide and its derivatives in water via ultrafast fluorescence spectroscopy,” J. Photochem. Photobiol. B 149, 243–248 (2015).
[Crossref] [PubMed]

Patel, M.

L. Seballos, N. Richards, D. J. Stevens, M. Patel, L. Kapitzky, S. Lokey, G. Millhauser, and J. Z. Zhang, “Competitive binding effects on surface-enhanced Raman scattering of peptide molecules,” Chem. Phys. Lett. 447(4-6), 335–339 (2007).
[Crossref] [PubMed]

Periasamy, N.

R. Swaminathan, G. Krishnamoorthy, and N. Periasamy, “Similarity of fluorescence lifetime distributions for single tryptophan proteins in the random coil state,” Biophys. J. 67(5), 2013–2023 (1994).
[Crossref] [PubMed]

Plain, J.

Proust, J.

Qin, D.

M. Rycenga, C. M. Cobley, J. Zeng, W. Li, C. H. Moran, Q. Zhang, D. Qin, and Y. Xia, “Controlling the synthesis and assembly of silver nanostructures for plasmonic applications,” Chem. Rev. 111(6), 3669–3712 (2011).
[Crossref] [PubMed]

Qu, J.

S. Ye, J. Song, Y. Tian, L. Chen, D. Wang, H. Niu, and J. Qu, “Photochemically grown silver nanodecahedra with precise tuning of plasmonic resonance,” Nanoscale 7(29), 12706–12712 (2015).
[Crossref] [PubMed]

J. Xian, L. Chen, H. Niu, J. Qu, and J. Song, “Significant field enhancements in an individual silver nanoparticle near a substrate covered with a thin gain film,” Nanoscale 6(22), 13994–14001 (2014).
[Crossref] [PubMed]

Richards, N.

L. Seballos, N. Richards, D. J. Stevens, M. Patel, L. Kapitzky, S. Lokey, G. Millhauser, and J. Z. Zhang, “Competitive binding effects on surface-enhanced Raman scattering of peptide molecules,” Chem. Phys. Lett. 447(4-6), 335–339 (2007).
[Crossref] [PubMed]

Rycenga, M.

M. Rycenga, C. M. Cobley, J. Zeng, W. Li, C. H. Moran, Q. Zhang, D. Qin, and Y. Xia, “Controlling the synthesis and assembly of silver nanostructures for plasmonic applications,” Chem. Rev. 111(6), 3669–3712 (2011).
[Crossref] [PubMed]

Säynätjoki, A.

Seballos, L.

L. Seballos, N. Richards, D. J. Stevens, M. Patel, L. Kapitzky, S. Lokey, G. Millhauser, and J. Z. Zhang, “Competitive binding effects on surface-enhanced Raman scattering of peptide molecules,” Chem. Phys. Lett. 447(4-6), 335–339 (2007).
[Crossref] [PubMed]

Shanmukh, S.

S. Shanmukh, L. Jones, J. Driskell, Y. Zhao, R. Dluhy, and R. A. Tripp, “Rapid and sensitive detection of respiratory virus molecular signatures using a silver nanorod array SERS substrate,” Nano Lett. 6(11), 2630–2636 (2006).
[Crossref] [PubMed]

Song, J.

S. Ye, J. Song, Y. Tian, L. Chen, D. Wang, H. Niu, and J. Qu, “Photochemically grown silver nanodecahedra with precise tuning of plasmonic resonance,” Nanoscale 7(29), 12706–12712 (2015).
[Crossref] [PubMed]

J. Xian, L. Chen, H. Niu, J. Qu, and J. Song, “Significant field enhancements in an individual silver nanoparticle near a substrate covered with a thin gain film,” Nanoscale 6(22), 13994–14001 (2014).
[Crossref] [PubMed]

Sperling, J.

T. Dadosh, Y. Gordin, R. Krahne, I. Khivrich, D. Mahalu, V. Frydman, J. Sperling, A. Yacoby, and I. Bar-Joseph, “Measurement of the conductance of single conjugated molecules,” Nature 436(7051), 677–680 (2005).
[Crossref] [PubMed]

Stefureac, R. I.

R. I. Stefureac, C. A. Madampage, O. Andrievskaia, and J. S. Lee, “Nanopore analysis of the interaction of metal ions with prion proteins and peptides,” Biochem. Cell Biol. 88(2), 347–358 (2010).
[Crossref] [PubMed]

Stevens, D. J.

L. Seballos, N. Richards, D. J. Stevens, M. Patel, L. Kapitzky, S. Lokey, G. Millhauser, and J. Z. Zhang, “Competitive binding effects on surface-enhanced Raman scattering of peptide molecules,” Chem. Phys. Lett. 447(4-6), 335–339 (2007).
[Crossref] [PubMed]

Stewart, S.

S. Stewart and P. M. Fredericks, “Surface-enhanced Raman spectroscopy of peptides and proteins adsorbed on an electrochemically prepared silver surface,” Spectrochim. Acta A 55(7–8), 1615–1640 (1999).
[Crossref]

Su, X.

H. Chen, X. Su, K. G. Neoh, and W. S. Choe, “Probing the interaction between peptides and metal oxides using point mutants of a TiO2-binding peptide,” Langmuir 24(13), 6852–6857 (2008).
[Crossref] [PubMed]

Suh, S. W.

H. Lee, M. S. Kim, and S. W. Suh, “Raman spectroscopy of sulphur-containing amino acids and their derivatives adsorbed on silver,” J. Raman Spectrosc. 22(2), 91–96 (1991).
[Crossref]

S. K. Kim, M. S. Kim, and S. W. Suh, “Surface-enhanced Raman scattering (SERS) of aromatic amino acids and their glycyl dipeptides in silver sol,” J. Raman Spectrosc. 18(3), 171–175 (1987).
[Crossref]

Swaminathan, R.

R. Swaminathan, G. Krishnamoorthy, and N. Periasamy, “Similarity of fluorescence lifetime distributions for single tryptophan proteins in the random coil state,” Biophys. J. 67(5), 2013–2023 (1994).
[Crossref] [PubMed]

Tam, F.

F. Tam, G. P. Goodrich, B. R. Johnson, and N. J. Halas, “Plasmonic enhancement of molecular fluorescence,” Nano Lett. 7(2), 496–501 (2007).
[Crossref] [PubMed]

Tervonen, A.

Thomas, S.

N. Maiti, S. Thomas, J. A. Jacob, R. Chadha, T. Mukherjee, and S. Kapoor, “DFT and surface-enhanced Raman scattering study of tryptophan-silver complex,” J. Colloid Interface Sci. 380(1), 141–149 (2012).
[Crossref] [PubMed]

Tian, Y.

S. Ye, J. Song, Y. Tian, L. Chen, D. Wang, H. Niu, and J. Qu, “Photochemically grown silver nanodecahedra with precise tuning of plasmonic resonance,” Nanoscale 7(29), 12706–12712 (2015).
[Crossref] [PubMed]

Tripp, R. A.

S. Shanmukh, L. Jones, J. Driskell, Y. Zhao, R. Dluhy, and R. A. Tripp, “Rapid and sensitive detection of respiratory virus molecular signatures using a silver nanorod array SERS substrate,” Nano Lett. 6(11), 2630–2636 (2006).
[Crossref] [PubMed]

Utkin, I.

Wang, D.

S. Ye, J. Song, Y. Tian, L. Chen, D. Wang, H. Niu, and J. Qu, “Photochemically grown silver nanodecahedra with precise tuning of plasmonic resonance,” Nanoscale 7(29), 12706–12712 (2015).
[Crossref] [PubMed]

Wang, K.

D. He, B. Hu, Q. F. Yao, K. Wang, and S. H. Yu, “Large-scale synthesis of flexible free-standing SERS substrates with high sensitivity: electrospun PVA nanofibers embedded with controlled alignment of silver nanoparticles,” ACS Nano 3(12), 3993–4002 (2009).
[Crossref] [PubMed]

Wang, L.

L. Xu, W. Yan, W. Ma, H. Kuang, X. Wu, L. Liu, Y. Zhao, L. Wang, and C. Xu, “SERS encoded silver pyramids for attomolar detection of multiplexed disease biomarkers,” Adv. Mater. 27(10), 1706–1711 (2015).
[Crossref] [PubMed]

Wegner, G.

S. Baluschev, F. Yu, T. Miteva, S. Ahl, A. Yasuda, G. Nelles, W. Knoll, and G. Wegner, “Metal-enhanced up-conversion fluorescence: effective triplet-triplet annihilation near silver surface,” Nano Lett. 5(12), 2482–2484 (2005).
[Crossref] [PubMed]

Wei, F.

F. Wei, D. Zhang, N. J. Halas, and J. D. Hartgerink, “Aromatic amino acids providing characteristic motifs in the Raman and SERS spectroscopy of peptides,” J. Phys. Chem. B 112(30), 9158–9164 (2008).
[Crossref] [PubMed]

Wu, X.

L. Xu, W. Yan, W. Ma, H. Kuang, X. Wu, L. Liu, Y. Zhao, L. Wang, and C. Xu, “SERS encoded silver pyramids for attomolar detection of multiplexed disease biomarkers,” Adv. Mater. 27(10), 1706–1711 (2015).
[Crossref] [PubMed]

Wu, Y.

Y. Wu, T. Hang, J. Komadina, H. Ling, and M. Li, “High-adhesive superhydrophobic 3D nanostructured silver films applied as sensitive, long-lived, reproducible and recyclable SERS substrates,” Nanoscale 6(16), 9720–9726 (2014).
[Crossref] [PubMed]

Xia, Y.

M. Rycenga, C. M. Cobley, J. Zeng, W. Li, C. H. Moran, Q. Zhang, D. Qin, and Y. Xia, “Controlling the synthesis and assembly of silver nanostructures for plasmonic applications,” Chem. Rev. 111(6), 3669–3712 (2011).
[Crossref] [PubMed]

Xian, J.

J. Xian, L. Chen, H. Niu, J. Qu, and J. Song, “Significant field enhancements in an individual silver nanoparticle near a substrate covered with a thin gain film,” Nanoscale 6(22), 13994–14001 (2014).
[Crossref] [PubMed]

Xu, C.

L. Xu, W. Yan, W. Ma, H. Kuang, X. Wu, L. Liu, Y. Zhao, L. Wang, and C. Xu, “SERS encoded silver pyramids for attomolar detection of multiplexed disease biomarkers,” Adv. Mater. 27(10), 1706–1711 (2015).
[Crossref] [PubMed]

Xu, H.

H. Xu, E. J. Bjerneld, M. Käll, and L. Börjesson, “Spectroscopy of Single Hemoglobin Molecules by Surface Enhanced Raman Scattering,” Phys. Rev. Lett. 83(21), 4357–4360 (1999).
[Crossref]

Xu, J.

M. Jia, H. Yi, M. Chang, X. Cao, L. Li, Z. Zhou, H. Pan, Y. Chen, S. Zhang, and J. Xu, “Fluorescence kinetics of Trp-Trp dipeptide and its derivatives in water via ultrafast fluorescence spectroscopy,” J. Photochem. Photobiol. B 149, 243–248 (2015).
[Crossref] [PubMed]

J. Xu and J. R. Knutson, “Quasi-static self-quenching of Trp-X and X-Trp dipeptides in water: ultrafast fluorescence decay,” J. Phys. Chem. B 113(35), 12084–12089 (2009).
[Crossref] [PubMed]

Xu, L.

L. Xu, W. Yan, W. Ma, H. Kuang, X. Wu, L. Liu, Y. Zhao, L. Wang, and C. Xu, “SERS encoded silver pyramids for attomolar detection of multiplexed disease biomarkers,” Adv. Mater. 27(10), 1706–1711 (2015).
[Crossref] [PubMed]

Yacoby, A.

T. Dadosh, Y. Gordin, R. Krahne, I. Khivrich, D. Mahalu, V. Frydman, J. Sperling, A. Yacoby, and I. Bar-Joseph, “Measurement of the conductance of single conjugated molecules,” Nature 436(7051), 677–680 (2005).
[Crossref] [PubMed]

Yan, W.

L. Xu, W. Yan, W. Ma, H. Kuang, X. Wu, L. Liu, Y. Zhao, L. Wang, and C. Xu, “SERS encoded silver pyramids for attomolar detection of multiplexed disease biomarkers,” Adv. Mater. 27(10), 1706–1711 (2015).
[Crossref] [PubMed]

Yan, X.

G. Liu, H. Zheng, M. Liu, Z. Zhang, J. Dong, X. Yan, and X. Li, “Surface-enhanced fluorescence of rhodamine 6G on the assembled silver nanostructures,” J. Nanosci. Nanotechnol. 11(11), 9523–9527 (2011).
[Crossref] [PubMed]

Yao, Q. F.

D. He, B. Hu, Q. F. Yao, K. Wang, and S. H. Yu, “Large-scale synthesis of flexible free-standing SERS substrates with high sensitivity: electrospun PVA nanofibers embedded with controlled alignment of silver nanoparticles,” ACS Nano 3(12), 3993–4002 (2009).
[Crossref] [PubMed]

Yasuda, A.

S. Baluschev, F. Yu, T. Miteva, S. Ahl, A. Yasuda, G. Nelles, W. Knoll, and G. Wegner, “Metal-enhanced up-conversion fluorescence: effective triplet-triplet annihilation near silver surface,” Nano Lett. 5(12), 2482–2484 (2005).
[Crossref] [PubMed]

Ye, C.

Ye, S.

S. Ye, J. Song, Y. Tian, L. Chen, D. Wang, H. Niu, and J. Qu, “Photochemically grown silver nanodecahedra with precise tuning of plasmonic resonance,” Nanoscale 7(29), 12706–12712 (2015).
[Crossref] [PubMed]

Yi, H.

M. Jia, H. Yi, M. Chang, X. Cao, L. Li, Z. Zhou, H. Pan, Y. Chen, S. Zhang, and J. Xu, “Fluorescence kinetics of Trp-Trp dipeptide and its derivatives in water via ultrafast fluorescence spectroscopy,” J. Photochem. Photobiol. B 149, 243–248 (2015).
[Crossref] [PubMed]

Yu, F.

S. Baluschev, F. Yu, T. Miteva, S. Ahl, A. Yasuda, G. Nelles, W. Knoll, and G. Wegner, “Metal-enhanced up-conversion fluorescence: effective triplet-triplet annihilation near silver surface,” Nano Lett. 5(12), 2482–2484 (2005).
[Crossref] [PubMed]

Yu, S. H.

D. He, B. Hu, Q. F. Yao, K. Wang, and S. H. Yu, “Large-scale synthesis of flexible free-standing SERS substrates with high sensitivity: electrospun PVA nanofibers embedded with controlled alignment of silver nanoparticles,” ACS Nano 3(12), 3993–4002 (2009).
[Crossref] [PubMed]

Zeng, J.

M. Rycenga, C. M. Cobley, J. Zeng, W. Li, C. H. Moran, Q. Zhang, D. Qin, and Y. Xia, “Controlling the synthesis and assembly of silver nanostructures for plasmonic applications,” Chem. Rev. 111(6), 3669–3712 (2011).
[Crossref] [PubMed]

Zhang, D.

F. Wei, D. Zhang, N. J. Halas, and J. D. Hartgerink, “Aromatic amino acids providing characteristic motifs in the Raman and SERS spectroscopy of peptides,” J. Phys. Chem. B 112(30), 9158–9164 (2008).
[Crossref] [PubMed]

Zhang, J. Z.

L. Seballos, N. Richards, D. J. Stevens, M. Patel, L. Kapitzky, S. Lokey, G. Millhauser, and J. Z. Zhang, “Competitive binding effects on surface-enhanced Raman scattering of peptide molecules,” Chem. Phys. Lett. 447(4-6), 335–339 (2007).
[Crossref] [PubMed]

Zhang, Q.

M. Rycenga, C. M. Cobley, J. Zeng, W. Li, C. H. Moran, Q. Zhang, D. Qin, and Y. Xia, “Controlling the synthesis and assembly of silver nanostructures for plasmonic applications,” Chem. Rev. 111(6), 3669–3712 (2011).
[Crossref] [PubMed]

Zhang, S.

M. Jia, H. Yi, M. Chang, X. Cao, L. Li, Z. Zhou, H. Pan, Y. Chen, S. Zhang, and J. Xu, “Fluorescence kinetics of Trp-Trp dipeptide and its derivatives in water via ultrafast fluorescence spectroscopy,” J. Photochem. Photobiol. B 149, 243–248 (2015).
[Crossref] [PubMed]

Zhang, Z.

G. Liu, H. Zheng, M. Liu, Z. Zhang, J. Dong, X. Yan, and X. Li, “Surface-enhanced fluorescence of rhodamine 6G on the assembled silver nanostructures,” J. Nanosci. Nanotechnol. 11(11), 9523–9527 (2011).
[Crossref] [PubMed]

Zhao, Y.

L. Xu, W. Yan, W. Ma, H. Kuang, X. Wu, L. Liu, Y. Zhao, L. Wang, and C. Xu, “SERS encoded silver pyramids for attomolar detection of multiplexed disease biomarkers,” Adv. Mater. 27(10), 1706–1711 (2015).
[Crossref] [PubMed]

S. Shanmukh, L. Jones, J. Driskell, Y. Zhao, R. Dluhy, and R. A. Tripp, “Rapid and sensitive detection of respiratory virus molecular signatures using a silver nanorod array SERS substrate,” Nano Lett. 6(11), 2630–2636 (2006).
[Crossref] [PubMed]

Zheng, H.

G. Liu, H. Zheng, M. Liu, Z. Zhang, J. Dong, X. Yan, and X. Li, “Surface-enhanced fluorescence of rhodamine 6G on the assembled silver nanostructures,” J. Nanosci. Nanotechnol. 11(11), 9523–9527 (2011).
[Crossref] [PubMed]

Zhou, Z.

M. Jia, H. Yi, M. Chang, X. Cao, L. Li, Z. Zhou, H. Pan, Y. Chen, S. Zhang, and J. Xu, “Fluorescence kinetics of Trp-Trp dipeptide and its derivatives in water via ultrafast fluorescence spectroscopy,” J. Photochem. Photobiol. B 149, 243–248 (2015).
[Crossref] [PubMed]

ACS Nano (1)

D. He, B. Hu, Q. F. Yao, K. Wang, and S. H. Yu, “Large-scale synthesis of flexible free-standing SERS substrates with high sensitivity: electrospun PVA nanofibers embedded with controlled alignment of silver nanoparticles,” ACS Nano 3(12), 3993–4002 (2009).
[Crossref] [PubMed]

Adv. Mater. (1)

L. Xu, W. Yan, W. Ma, H. Kuang, X. Wu, L. Liu, Y. Zhao, L. Wang, and C. Xu, “SERS encoded silver pyramids for attomolar detection of multiplexed disease biomarkers,” Adv. Mater. 27(10), 1706–1711 (2015).
[Crossref] [PubMed]

Appl. Spectrosc. (1)

Biochem. Cell Biol. (1)

R. I. Stefureac, C. A. Madampage, O. Andrievskaia, and J. S. Lee, “Nanopore analysis of the interaction of metal ions with prion proteins and peptides,” Biochem. Cell Biol. 88(2), 347–358 (2010).
[Crossref] [PubMed]

Biophys. J. (1)

R. Swaminathan, G. Krishnamoorthy, and N. Periasamy, “Similarity of fluorescence lifetime distributions for single tryptophan proteins in the random coil state,” Biophys. J. 67(5), 2013–2023 (1994).
[Crossref] [PubMed]

Chem. Phys. Lett. (1)

L. Seballos, N. Richards, D. J. Stevens, M. Patel, L. Kapitzky, S. Lokey, G. Millhauser, and J. Z. Zhang, “Competitive binding effects on surface-enhanced Raman scattering of peptide molecules,” Chem. Phys. Lett. 447(4-6), 335–339 (2007).
[Crossref] [PubMed]

Chem. Rev. (1)

M. Rycenga, C. M. Cobley, J. Zeng, W. Li, C. H. Moran, Q. Zhang, D. Qin, and Y. Xia, “Controlling the synthesis and assembly of silver nanostructures for plasmonic applications,” Chem. Rev. 111(6), 3669–3712 (2011).
[Crossref] [PubMed]

Chemical and Biological Sensing (1)

J. Guicheteau, L. Argue, A. Hyre, M. Jacobson, and S. D. Christesen, ““Raman and surface-enhanced Raman spectroscopy of amino acids and nucleotide bases for target bacterial vibrational mode identification,” Proc. SPIE 6218,” Chemical and Biological Sensing VII, 62180O (2006).

J. Am. Chem. Soc. (1)

T. M. Herne, A. Ahern, and R. L. Garrell, “Surface-enhanced Raman spectroscopy of peptides: preferential N-terminal adsorption on colloidal silver,” J. Am. Chem. Soc. 113(3), 846–854 (1991).
[Crossref]

J. Chem. Soc., Faraday Trans. II (1)

J. A. Creighton, C. G. Blatchford, and M. G. Albrecht, “Plasma resonance enhancement of Raman scattering by pyridine adsorbed on silver or gold sol particles of size comparable to the excitation wavelength,” J. Chem. Soc., Faraday Trans. II 75(5), 790–798 (1979).
[Crossref]

J. Colloid Interface Sci. (1)

N. Maiti, S. Thomas, J. A. Jacob, R. Chadha, T. Mukherjee, and S. Kapoor, “DFT and surface-enhanced Raman scattering study of tryptophan-silver complex,” J. Colloid Interface Sci. 380(1), 141–149 (2012).
[Crossref] [PubMed]

J. Nanosci. Nanotechnol. (1)

G. Liu, H. Zheng, M. Liu, Z. Zhang, J. Dong, X. Yan, and X. Li, “Surface-enhanced fluorescence of rhodamine 6G on the assembled silver nanostructures,” J. Nanosci. Nanotechnol. 11(11), 9523–9527 (2011).
[Crossref] [PubMed]

J. Photochem. Photobiol. B (1)

M. Jia, H. Yi, M. Chang, X. Cao, L. Li, Z. Zhou, H. Pan, Y. Chen, S. Zhang, and J. Xu, “Fluorescence kinetics of Trp-Trp dipeptide and its derivatives in water via ultrafast fluorescence spectroscopy,” J. Photochem. Photobiol. B 149, 243–248 (2015).
[Crossref] [PubMed]

J. Phys. Chem. B (2)

J. Xu and J. R. Knutson, “Quasi-static self-quenching of Trp-X and X-Trp dipeptides in water: ultrafast fluorescence decay,” J. Phys. Chem. B 113(35), 12084–12089 (2009).
[Crossref] [PubMed]

F. Wei, D. Zhang, N. J. Halas, and J. D. Hartgerink, “Aromatic amino acids providing characteristic motifs in the Raman and SERS spectroscopy of peptides,” J. Phys. Chem. B 112(30), 9158–9164 (2008).
[Crossref] [PubMed]

J. Raman Spectrosc. (3)

S. K. Kim, M. S. Kim, and S. W. Suh, “Surface-enhanced Raman scattering (SERS) of aromatic amino acids and their glycyl dipeptides in silver sol,” J. Raman Spectrosc. 18(3), 171–175 (1987).
[Crossref]

H. Lee, M. S. Kim, and S. W. Suh, “Raman spectroscopy of sulphur-containing amino acids and their derivatives adsorbed on silver,” J. Raman Spectrosc. 22(2), 91–96 (1991).
[Crossref]

A. E. Aliaga, I. Osorio-Román, P. Leyton, C. Garrido, J. Cárcamo, C. Caniulef, F. Célis, G. Díaz F, E. Clavijo, J. S. Gómez-Jeria, and M. M. Campos-Vallette, “G. Díaz F, E. Clavijo, J. S. Gómez-Jeria, and M. M. Campos-Vallette, “Surface-enhanced Raman scattering study of L-tryptophan,” J. Raman Spectrosc. 40(2), 164–169 (2009).
[Crossref]

Langmuir (1)

H. Chen, X. Su, K. G. Neoh, and W. S. Choe, “Probing the interaction between peptides and metal oxides using point mutants of a TiO2-binding peptide,” Langmuir 24(13), 6852–6857 (2008).
[Crossref] [PubMed]

Nano Lett. (3)

S. Shanmukh, L. Jones, J. Driskell, Y. Zhao, R. Dluhy, and R. A. Tripp, “Rapid and sensitive detection of respiratory virus molecular signatures using a silver nanorod array SERS substrate,” Nano Lett. 6(11), 2630–2636 (2006).
[Crossref] [PubMed]

S. Baluschev, F. Yu, T. Miteva, S. Ahl, A. Yasuda, G. Nelles, W. Knoll, and G. Wegner, “Metal-enhanced up-conversion fluorescence: effective triplet-triplet annihilation near silver surface,” Nano Lett. 5(12), 2482–2484 (2005).
[Crossref] [PubMed]

F. Tam, G. P. Goodrich, B. R. Johnson, and N. J. Halas, “Plasmonic enhancement of molecular fluorescence,” Nano Lett. 7(2), 496–501 (2007).
[Crossref] [PubMed]

Nanoscale (3)

Y. Wu, T. Hang, J. Komadina, H. Ling, and M. Li, “High-adhesive superhydrophobic 3D nanostructured silver films applied as sensitive, long-lived, reproducible and recyclable SERS substrates,” Nanoscale 6(16), 9720–9726 (2014).
[Crossref] [PubMed]

S. Ye, J. Song, Y. Tian, L. Chen, D. Wang, H. Niu, and J. Qu, “Photochemically grown silver nanodecahedra with precise tuning of plasmonic resonance,” Nanoscale 7(29), 12706–12712 (2015).
[Crossref] [PubMed]

J. Xian, L. Chen, H. Niu, J. Qu, and J. Song, “Significant field enhancements in an individual silver nanoparticle near a substrate covered with a thin gain film,” Nanoscale 6(22), 13994–14001 (2014).
[Crossref] [PubMed]

Nature (1)

T. Dadosh, Y. Gordin, R. Krahne, I. Khivrich, D. Mahalu, V. Frydman, J. Sperling, A. Yacoby, and I. Bar-Joseph, “Measurement of the conductance of single conjugated molecules,” Nature 436(7051), 677–680 (2005).
[Crossref] [PubMed]

Opt. Mater. Express (2)

Phys. Rev. Lett. (1)

H. Xu, E. J. Bjerneld, M. Käll, and L. Börjesson, “Spectroscopy of Single Hemoglobin Molecules by Surface Enhanced Raman Scattering,” Phys. Rev. Lett. 83(21), 4357–4360 (1999).
[Crossref]

Spectrochim. Acta A (1)

S. Stewart and P. M. Fredericks, “Surface-enhanced Raman spectroscopy of peptides and proteins adsorbed on an electrochemically prepared silver surface,” Spectrochim. Acta A 55(7–8), 1615–1640 (1999).
[Crossref]

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Figures (6)

Fig. 1
Fig. 1 (A) The extinction spectra of fresh freshly prepared PSSS-templated Ag NPs (a), after adding 1 mM Trp-Trp dipeptides 1 hour later (b). The inset in Fig. 1(a) is the color of silver colloids; (B) The TEM imaging of PSSS-templated Ag NPs; (C) The extinction spectra of PSSS-templated Ag NPs (a), after adding pH 6.0 phosphate buffer 1 hour later (b); (D) The extinction spectra of fresh freshly prepared PSSS-templated Ag NPs (a), after adding 1 mM Tryptophan solution 1 hour later (b).
Fig. 2
Fig. 2 Normalized extinction spectra of mixture solutions composed of PSSS-templated Ag NPs and Trp-Trp dipeptides solutions in various pH conditions. The inset is SPA bands of Ag NPs induced by Trp-Trp dipeptides.
Fig. 3
Fig. 3 (A) SERS spectrum of L-tryptophan molecules (0.5 mM) on PSSS-templated Ag NPs. (B) Extinction spectra of fresh freshly prepared Ag spheres. Inset shows the color of Creighton silver colloids. (C) SERS spectrum of L-tryptophan molecules (10−2 mM) on Creighton silver colloids (D) (a) Normalized normal Raman spectrum of solid Trp-Trp dipeptides powder; (b) Normalized Raman spectrum (FWHM = 8 cm−1) of Trp-Trp dipeptides by DFT simulation; (c) Normalized SERS spectrum of (500 μM)Trp-Trp dipeptides on PSSS-templated Ag NPs.
Fig. 4
Fig. 4 SERS spectrum of tryptophan dipepetides (N-Acetyl-tryptophan-tryptophan methylester, NATrp2ME, 50 μM) on PSSS-templated Ag NPs. The inset is chemical structure of NATrp2ME.
Fig. 5
Fig. 5 (A) Steady state fluorescence emission spectra (a) 0.5 mM Trp-Trp dipeptides in phosphate buffer (pH 6.0). (b) 0.5 mM Trp-Trp dipeptides in PSSS-templated Ag NPs (pH 6.0). (B) Steady state fluorescence emission spectra (a) 0.5 mM Tryptophan solution. (b) 0.5 mM Tryptophan in PSSS-templated Ag NPs.
Fig. 6
Fig. 6 Decay spectra of Trp-Trp dipeptides in silver colloids (red) and phosphate buffer (blue).

Tables (1)

Tables Icon

Table 1 Trp-Trp dipeptides lifetimes, pH 6.0, room temperature

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