We are developing a miniature fiber-optic spectral-detection device and topical-staining protocol to rapidly detect multiplexed surface-enhanced Raman scattering (SERS) nanoparticles (NPs) targeted to cell-surface biomarkers in fresh tissues. Ex vivo and in vivo experiments were performed to optimize our strategy for the rapid detection of multiple cell-surface biomarkers following a brief (5 min) topical application of SERS NPs on tissues. The simultaneous detection and ratiometric quantification of targeted and nontargeted NPs allows for an unambiguous assessment of molecular expression that is insensitive to nonspecific variations in NP concentrations, potentially enabling point-of-care surgical guidance or early disease detection.

Date Published: 19 May 2014
PDF: 3 pages
Proc. SPIE 9155, Translational Biophotonics, 91550Z (19 May 2014); doi: 10.1117/12.2057716

Published in SPIE Proceedings Vol. 9155:
Translational Biophotonics
Tomasz S. Tkaczyk, Editor(s)