A Multiwell Electrochemical Biosensor for Real-Time Monitoring of the Behavioural Changes of Cells in Vitro

Author： Adlam Daman J.   Woolley David E.  

Publisher： MDPI

E-ISSN： 1424-8220|10|4|3732-3740

ISSN： 1424-8220

Source： Sensors, Vol.10, Iss.4, 2010-04, pp. : 3732-3740

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Abstract

We report the development of a multiwell biosensor for detecting changes in the electrochemical open circuit potential (OCP) generated by viable human cells in vitro. The instrument features eight culture wells; each containing three gold sensors around a common silver/silver chloride reference electrode, prepared using screen-printed conductive inks. The potential applications of the device were demonstrated by monitoring rheumatoid synovial fibroblasts (RSF) and HepG2 hepatocarcinoma cells in response to chemical and biological treatments. This technology could provide an alternative to conventional end-point assays used in the fields of chemotherapy, toxicology and drug discovery.

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