Please use this identifier to cite or link to this item: http://hdl.handle.net/10316/8257
Title: Application of Some Room Temperature Ionic Liquids in the Development of Biosensors at Carbon Film Electrodes
Authors: Pauliukaite, Rasa 
Doherty, Andrew P. 
Murnaghan, Kevin D. 
Brett, Christopher M. A. 
Issue Date: 2008
Citation: Electroanalysis. 20:5 (2008) 485-490
Abstract: Two room temperature ionic liquids, 1-butyl-3-methylimidazolium bistriflimide and 1-butyl-3-methylimidazolium nitrate, were employed for enzyme immobilization in a new sol-gel matrix and, for the first time, were successfully applied as electrolyte carriers in a biosensing system. The new sol-gel matrix, based on 3-aminopropyltrimethoxysilane and 1-butyl-3-methylimidazolium bistriflimide mixtures, did not crack even after several weeks when kept dry, and exhibited similar analytical properties to aqueous sol-gel based glucose biosensors. The linear range was up to 1.1 mM of glucose, sensitivity was 62 nA mM-1 and the limit of detection was 28.8 muM. The optimum ionic liquid electrolyte carrier was found to be 1-butyl-3-methylimidazolium nitrate, where the biosensor was made by electrodeposition of the redox mediator, poly(neutral red), and the enzyme was immobilized by cross-linking with glutaraldehyde. The results showed that application of room temperature ionic liquids to biosensors is very promising and can be further exploited.
URI: http://hdl.handle.net/10316/8257
DOI: 10.1002/elan.200704081
Rights: openAccess
Appears in Collections:FCTUC Química - Artigos em Revistas Internacionais

Files in This Item:
File Description SizeFormat
obra.pdf448.15 kBAdobe PDFView/Open
Show full item record

Page view(s) 50

252
checked on Sep 10, 2019

Download(s)

83
checked on Sep 10, 2019

Google ScholarTM

Check

Altmetric

Dimensions


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.