dc.contributor.authorTan, Hsih Yin
dc.contributor.authorLoke, Weng Keong
dc.contributor.authorNguyen, Nam-Trung
dc.contributor.authorTan, Swee Ngin
dc.contributor.authorTay, Nam Beng
dc.contributor.authorWang, Wei
dc.contributor.authorNg, Sum Huan
dc.identifier.citationTan, H. Y., Loke, W. K., Nguyen, N.-T., Tan, S. N., Tay, N. B., Wang, W., et al. (2014). Lab-on-a-chip for rapid electrochemical detection of nerve agent Sarin. Biomedical Microdevices, 16(2), 269-275.en_US
dc.description.abstractThis paper reports a lab-on-a-chip for the detection of Sarin nerve agent based on rapid electrochemical detection. The chemical warfare agent Sarin (C4H10FO2P, O-isopropyl methylphosphonofluoridate) is a highly toxic organophosphate that induces rapid respiratory depression, seizures and death within minutes of inhalation. As purified Sarin is colourless, odourless, water soluble and a easily disseminated nerve agent, it has been used as a weapon in terrorist or military attacks. To ascertain whether potable water supplies have been adulterated with this extremely potent poison, an inexpensive, sensitive and easy to use portable test kit would be of interest to first responders investigating such attacks. We report here an amperometric-based approach for detecting trace amounts of Sarin in water samples using a screen-printed electrode (SPE) integrated in a microfluidic chip. Enzymatic inhibition was obtained by exposing the immobilised biosensor in the microfluidic platform to Sarin in water samples. With the aid of cobalt phthalocyanine modified SPE, the device could detect Sarin at part-per-billion levels with concentration as low as 1 nM. The detection method reported here represents a significant improvement over the authors’previous optical-based detection method.en_US
dc.description.sponsorshipASTAR (Agency for Sci., Tech. and Research, S’pore)en_US
dc.relation.ispartofseriesBiomedical Microdevicesen_US
dc.rights© 2013 Springer Science+Business Media New York.en_US
dc.titleLab-on-a-chip for rapid electrochemical detection of nerve agent Sarinen_US
dc.typeJournal Article
dc.contributor.organizationA*STAR SIMTechen_US

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