Linked Life Data

20655730

Source:http://linkedlifedata.com/resource/pubmed/id/20655730

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2010-9-27
pubmed:abstractText
Highly sensitive, long-term stable and reusable microfluidics electrodes have been fabricated and evaluated using H2O2 and hydroquinone as model analytes. These electrodes composed of a 300 nm Pt-black layer situated on a 5 ?m thick electrodeposited Au layer, provide effective protection against electrooxidation of an underlying chromium adhesion layer. Using repeated cyclic voltammetric (CV) sweeps in flowing buffer solution, highly sensitive Pt-black working electrodes were realized with five- (four-) decade linear dynamic range for H2O2 (hydroquinone) and low detection limit of 10 nM for H2O2 and 100 nM for hydroquinone. Moreover, high sensitivity for H2O2 was demonstrated at low (0.3 V vs. Ag/AgCl) oxidation potentials, together with long-term stability and reusability for at least 30 days. Microfluidic flow was employed for desorption and reactivation of the nominally planar Pt-black electrodes. Such electrocatalytic surface architecture should be appropriate for long-term electrochemical detection of various molecules and biomolecules as well as in reusable immunoassay configurations.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
1873-4235
pubmed:author
pubmed:copyrightInfo
Copyright © 2010. Published by Elsevier B.V.
pubmed:issnType
Electronic
pubmed:day
15
pubmed:volume
26
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
682-8
pubmed:dateRevised
2011-5-5
pubmed:meshHeading
pubmed:year
2010
pubmed:articleTitle
Highly sensitive and reusable Pt-black microfluidic electrodes for long-term electrochemical sensing.
pubmed:affiliation
Nanomaterials Optoelectronics Laboratory, Polymer Program, Institute of Materials Science, Department of Chemistry, University of Connecticut, Storrs, CT 06269, United States.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, Non-P.H.S., Research Support, N.I.H., Extramural