Determination of phenolic compounds based on co-immobilization of methylene blue and HRP on multi-wall carbon nanotubes

dc.creatorSantos, AS
dc.creatorPereira, AC
dc.creatorSotomayor, MDRT
dc.creatorTarley, CRT
dc.creatorDuran, N
dc.creatorKubota, LT
dc.date2007
dc.dateMAR
dc.date2014-11-19T07:44:29Z
dc.date2015-11-26T17:03:43Z
dc.date2014-11-19T07:44:29Z
dc.date2015-11-26T17:03:43Z
dc.date.accessioned2018-03-28T23:51:54Z
dc.date.available2018-03-28T23:51:54Z
dc.identifierElectroanalysis. Wiley-v C H Verlag Gmbh, v. 19, n. 5, n. 549, n. 554, 2007.
dc.identifier1040-0397
dc.identifierWOS:000244844700005
dc.identifier10.1002/elan.200603759
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/61403
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/61403
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/61403
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1279157
dc.descriptionThis work evaluated an amperometric biosensor based on multi-wall carbon nanotubes (MWCNT), chemically modified with methylene blue (Met) and horseradish peroxidase (HRP), for detection of phenolic compounds. The dependences of the biosensor response due to the enzyme immobilization procedure, HRP amounts, pH and working potential were investigated. The amperometric response for catechol using the proposed biosensor showed a very wide linear response range (1 to 150 mu mol L-1), good sensitivity (50 nA cm(-2) mu mol(-1) L), excellent operational stability (after 300 determinations the response remained at 97%) and very good storage stability (lifetime > 3 months). Based on all these characteristics, it is possible to affirm that the material is promising for phenol detection due to its good electrochemical response and enzyme stabilization. The biosensor response for various phenolic compounds was investigated.
dc.description19
dc.description5
dc.description549
dc.description554
dc.languageen
dc.publisherWiley-v C H Verlag Gmbh
dc.publisherWeinheim
dc.publisherAlemanha
dc.relationElectroanalysis
dc.relationElectroanalysis
dc.rightsfechado
dc.rightshttp://olabout.wiley.com/WileyCDA/Section/id-406071.html
dc.sourceWeb of Science
dc.subjectmulti-wall carbon nanotubes
dc.subjectmethylene blue
dc.subjectbiosensor
dc.subjecthorseradish peroxidase
dc.subjectphenolic compounds
dc.subjectElectrochemical Biosensors
dc.subjectAmperometric Biosensor
dc.subjectHorseradish-peroxidase
dc.subjectModified Electrode
dc.subjectHydrogen-peroxide
dc.subjectPaste Electrodes
dc.subjectMeldolas Blue
dc.subjectSol-gel
dc.subjectImmobilization
dc.subjectSensors
dc.titleDetermination of phenolic compounds based on co-immobilization of methylene blue and HRP on multi-wall carbon nanotubes
dc.typeArtículos de revistas


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