Structural Characterization of Graphene Nanosheets for Miniaturization of Potentiometric Urea Lipid Film Based Biosensors

Nikoleli, G-P; Israr, MQ; Tzamtzis, N; Nikolelis, DP; Willander, M; Psaroudakis, N

dc.contributor.author	Nikoleli, G-P	en
dc.contributor.author	Israr, MQ	en
dc.contributor.author	Tzamtzis, N	en
dc.contributor.author	Nikolelis, DP	en
dc.contributor.author	Willander, M	en
dc.contributor.author	Psaroudakis, N	en
dc.date.accessioned	2014-03-01T02:14:41Z
dc.date.available	2014-03-01T02:14:41Z
dc.date.issued	2012	en
dc.identifier.issn	10400397	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/30090
dc.subject	Electrochemistry	en
dc.subject	Graphene nanosheets	en
dc.subject	Miniaturization	en
dc.subject	Stabilized lipid films	en
dc.subject	Urea biosensors	en
dc.title	Structural Characterization of Graphene Nanosheets for Miniaturization of Potentiometric Urea Lipid Film Based Biosensors	en
heal.type	journalArticle	en
heal.identifier.primary	10.1002/elan.201200104	en
heal.identifier.secondary	http://dx.doi.org/10.1002/elan.201200104	en
heal.publicationDate	2012	en
heal.abstract	The present article describes a miniaturized potentiometric urea lipid film based biosensor on graphene nanosheets. Structural characterization of graphene nanosheets for miniaturization of potentiometric urea lipid film based biosensors have been studied through atomic force microscopy (AFM) and transmission electron microscopy (TEM) measurements. UV-Vis and Fourrier transform IR (FTIR) spectroscopy have been utilized to study the pre- and postconjugated surfaces of graphene nanosheets. The presented potentiometric urea biosensor exhibits good reproducibility, reusability, selectivity, rapid response times (~4s), long shelf life and high sensitivity of ca. 70mV/decade over the urea logarithmic concentration range from 1×10-6M to 1×10-3M. © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.	en
heal.journalName	Electroanalysis	en
dc.identifier.doi	10.1002/elan.201200104	en
dc.identifier.volume	24	en
dc.identifier.issue	6	en
dc.identifier.spage	1285	en
dc.identifier.epage	1295	en