Smartphone based LSPR biosensor

Qiang Liu; Yun Liu; Huizhen Yuan; Jiabin Wang; Jianye Guang; Wei Peng

Asia Communications and Photonics Conference (ACP) 2018
OSA Technical Digest (Optica Publishing Group, 2018),
paper Su2A.148

Smartphone based LSPR biosensor

Qiang Liu, Yun Liu, Huizhen Yuan, Jiabin Wang, Jianye Guang, and Wei Peng

Asia Communications and Photonics Conference 2018

Hangzhou China
26–29 October 2018
ISBN: 978-1-5386-6158-1

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Poster Session (Su2A)

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Q. Liu, Y. Liu, H. Yuan, J. Wang, J. Guang, and W. Peng, "Smartphone based LSPR biosensor," in Asia Communications and Photonics Conference (ACP) 2018, OSA Technical Digest (Optica Publishing Group, 2018), paper Su2A.148.

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Abstract

We demonstrated a fiber optic localized surface plasmon resonance (FO-LSPR) biosensor based on smartphone platform. By immobilizing gold nanoparticles (GNPs) on an unclad portion of optical fiber probe, we developed a kind of LSPR sensor of GNPs. Transmission intensity variation at the end face of FO-LSPR sensor was monitored in real time using a smartphone. The sensor prototype provide linear response with 3.8×10^-5 RIU resolution in a refractive index (RI) range of 1.333-1.403. This biosensor device can be further developed for universal promising applications in public health and environmental monitoring.

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