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Label-free, all-electrical, in situ human epidermal growth receptor 2 detection
Journal article   Open access   Peer reviewed

Label-free, all-electrical, in situ human epidermal growth receptor 2 detection

Joseph A Capobianco, Wan Y Shih, Qing-An Yuan, Gregory P Adams and Wei-Heng Shih
Review of scientific instruments, v 79(7), pp 076101-076101
Jul 2008
PMID: 18681738
url
https://doi.org/10.1063/1.2949831View
Published, Version of Record (VoR) Open

Abstract

Cell Line Receptor, ErbB-2 - biosynthesis Reproducibility of Results Silanes - chemistry Humans Gene Expression Regulation, Neoplastic Glass Titanium - chemistry Gene Expression Profiling Equipment Design Animals Cattle Serum Albumin, Bovine - chemistry Kinetics Receptor, ErbB-2 - analysis Lead - chemistry
Using 3-mercaptopropyltrimethoxysilane (MPS)-coated (PbMg 1/3 Nb 2/3 O3)0.63-(PbTiO3)0.37 (PMN-PT)/tin and lead zirconate titanate/glass piezoelectric microcantilever sensors (PEMSs) with single-chain variable fragment (scFv) immobilized on the MPS surface, we have demonstrated real-time, label-free detection of human epidermal growth factor receptor 2 (Her2) in a background of 1 mg/ml bovine serum albumin. Coupled with a scFv with a KD of 3.4 x 10(-8)M, the MPS-insulated PMN-PT/tin PEMS 560 microm long and 720 microm wide exhibited a Her2 concentration sensitivity of 5 ng/ml in a background of 1 mg/ml BSA.

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Collaboration types
Domestic collaboration
Web of Science research areas
Instruments & Instrumentation
Physics, Applied
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