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  • CLEO/Europe and EQEC 2011 Conference Digest
  • OSA Technical Digest (CD) (Optica Publishing Group, 2011),
  • paper CLEB2_2

Second-Harmonic Nanoparticles for Deep Tissue In Vivo Imaging

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Abstract

Deep tissue in vivo imaging remains a great challenge and we propose to use second-harmonic radiation imaging probes (SHRIMPs) as long-term non bleaching biomarkers. We show that the contrast of SHRIMPs with autofluorescence and endogenous second-harmonic generation (SHG) signal is strong enough for imaging as deep as 100 um in the tail of a living rodent. Currently, optical microscopy often uses fluorescent markers such as green fluorescent proteins (GFPs) and quantum dots to specifically enhance the contrast of selected targets [1]. Such fluorescent agents, however, are limited by photobleaching, blinking, and phototoxicity.

© 2011 IEEE

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