We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Effects of Electric Potential Treatment of a Chromium Hexacyanoferrate Modified Biosensor Based on PQQ-Dependent Glucose Dehydrogenase.
- Authors
Ta-Feng Tseng; Yang-Li Yang; Yuh-Jiuan Lin; Shyh-Liang Lou
- Abstract
A novel potential treatment technique applied to a glucose biosensor that is based on pyrroloquinoline quinone (PQQ)-dependent glucose dehydrogenase (GDH) and chromium hexacyanoferrate (CrHCF) incorporated into a platinum (Pt) electrode was demonstrated. CrHCF, serving as a mediator, was electrochemically deposited on the Pt electrode as ascertained by CV, SEM, FTIR and XPS measurements. The potential treatment of CrHCF, which converts Fe(II) to Fe(III), enables the glucose detection. The amperometric measurement linearity of the biosensor was up to 20 mM (R = 0.9923), and the detection sensitivity was 199.94 nA/mM per cm2. More importantly, this biosensor remained stable for >270 days.
- Subjects
BIOSENSORS; PQQ (Biochemistry); DEHYDROGENASES; PLATINUM electrodes; CONDUCTOMETRIC analysis; GLUCOSE; ELECTROCHEMICAL apparatus; THERAPEUTICS; CHROMIUM
- Publication
Sensors (14248220), 2010, Vol 10, Issue 7, p6347
- ISSN
1424-8220
- Publication type
Article
- DOI
10.3390/s100706347