期刊
JOURNAL OF BIOMEDICAL OPTICS
卷 15, 期 1, 页码 -出版社
SPIE-SOC PHOTO-OPTICAL INSTRUMENTATION ENGINEERS
DOI: 10.1117/1.3302810
关键词
fiber optic sensor; photonic crystal fiber; MCF-7 cells; protein immobilization; estrogen receptor; fluorescence imaging and sensing
资金
- ASTAR-SERC
A simple optical method using hollow-core photonic crystal fiber for protein detection has been described. In this study, estrogen receptor (ER) from a MCF-7 breast carcinoma cell lysates immobilized inside a hollow-core photonic crystal fiber was detected using anti-ER primary antibody with either Alexa (TM) Fluor 488 (green fluorescent dye) or 555 (red Fluorescent dye) labeled Goat anti-rabbit IgG as the secondary antibody. The fluorescence fingerprints of the ER alpha protein were observed under fluorescence microscope, and its optical characteristics were analyzed. The ER alpha protein detection by this proposed method is based on immuno binding from sample volume as low as 50 nL. This method is expected to offer great potential as a biosensor for medical diagnostics and therapeutics applications. (C) 2010 Society of Photo-Optical Instrumentation Engineers. [DOI: 10.1117/1.3302810]
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