Conducting Polymer-based Aptamer Biosensor for in situ Monitoring of Cytokine

Autor: Bradly Randall, Xinyan Tracy Cui, Nicolas Alexander Alba, Wei Liao
Rok vydání: 2007
Předmět:
Zdroj: MRS Proceedings. 1065
ISSN: 1946-4274
0272-9172
DOI: 10.1557/proc-1065-qq05-05
Popis: Neural prostheses often suffer from undesired chronic inflammatory tissue response. Therefore; a sensitive and real-time biosensor for inflammatory cytokine detection would provide invaluable information toward solving this problem. Such a biosensor based on an aptamer probe doped in polypyrrole and subsequent electrochemical impedance spectroscopy (EIS) has been developed. PDGF, an important inflammatory cytokine, has been successfully measured in both offline EIS characterization and real-time impedance monitoring. For in situ detection of PDGF, the best sensitivity of 10 ng/ml has been achieved.
Databáze: OpenAIRE