Endre søk
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Towards the development of an integrated capillary electrophoresis optical biosensor
University Verona, Department Science and Technology, I-37134 Verona, Italy; Cranfield University, Institute Biosci and Technology, Silsoe, Beds, England; .
University Verona, Department Science and Technology, I-37134 Verona, Italy; Cranfield University, Institute Biosci and Technology, Silsoe, Beds, England; .
University Verona, Department Science and Technology, I-37134 Verona, Italy; Cranfield University, Institute Biosci and Technology, Silsoe, Beds, England; .
Cranfield University, UK.ORCID-id: 0000-0002-1815-9699
Vise andre og tillknytning
2003 (engelsk)Inngår i: Electrophoresis, ISSN 0173-0835, E-ISSN 1522-2683, Vol. 24, nr 19-20, s. 3356-3363Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Extending the previous preliminary study on the construction of a capillary electrophoresis (CE)/sensor for the detection of reducing analytes, we focus the interest on the simultaneous detection of redox active species, which are important indicators of the oxidative damage in tissues, of food preservation, and of pollution. The CE/sensor was built by modifying the detector-portion of the capillary with the redox-sensitive polymer polyaniline (PANI). The analyte is detected by monitoring the changes in optical absorption of the PANI film. The CE/sensor was tested, with good results, with ascorbic acid, glutathione (GSH), as well as with compounds with very close similarity (ascorbic and isoascorbic acid). The kinetics of oxidation and reduction of PANI were evaluated. Further a PANI/CE-biological sensor was developed by coupling an enzyme, glucose oxidase (GOD), to the PANI-modified portion of the capillary. The stability of the immobilized GOD and the sensitivity of the CE/biosensor were studied, by using glucose as test analyte in concentrations within the physiological range. The results indicate that the CE/biosensor had good stability (more than 75% of original activity retained after 30 operational days), manufacturing reproducibility and a sensing range convenient for monitoring physiological glucose (1-24 mm).

sted, utgiver, år, opplag, sider
John Wiley andamp;amp; Sons, Ltd , 2003. Vol. 24, nr 19-20, s. 3356-3363
Emneord [en]
biosensor; capillary electrophoresis; chemical sensor; glucose oxidase; redox analytes
HSV kategori
Identifikatorer
URN: urn:nbn:se:liu:diva-65200DOI: 10.1002/elps.200305588ISI: 000186457900008OAI: oai:DiVA.org:liu-65200DiVA, id: diva2:395033
Tilgjengelig fra: 2011-02-04 Laget: 2011-02-04 Sist oppdatert: 2017-12-11

Open Access i DiVA

Fulltekst mangler i DiVA

Andre lenker

Forlagets fulltekst

Søk i DiVA

Av forfatter/redaktør
Turner, APF
I samme tidsskrift
Electrophoresis

Søk utenfor DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric

doi
urn-nbn
Totalt: 157 treff
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf