Conducting Polymer-based Aptamer Biosensor for in situ Monitoring of Cytokine
Autor: | Bradly Randall, Xinyan Tracy Cui, Nicolas Alexander Alba, Wei Liao |
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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 |
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