A Novel Biosensor Based on Laccase for The Detection of Catechol
Abstract
Phenolic compounds are broadly used in petrol industrial production
processes and thus they are hazardous for ground and surface water and
environment. Many of them have harmful effects on plants, animals and human
health. Laccases can oxide phenol and phenolic compounds. Biosensors provide
ideal sensing systems to determine phenolic compounds. In the present paper, it
was developed novel sensor surface with modified laccase on gold electrode
which could recognize the phenolic compound catechol. The electrode arrays
integrated microfluidics have been fabricated and characterized in order to
create a sensor chip which is easy, rapid, and cheaper to produce also have
good electrochemical sensing properties. This gold electrodes were used to obtain
laccase active surfaces. Laccase was covalently bounded to self-assembled
monolayer on gold electrode via glutaraldehyde reactions. Cyclic voltammetry
and amperometry activity assays showed that the detection of catechol with
laccase modified gold surface. All of the study was carried out using automated
biosensor device. Linear range for this biosensor was 0.025 mM to 0.8 mM.
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Details
Primary Language
English
Subjects
-
Journal Section
Research Article
Authors
Zehra Ölçer
*
0000-0001-9747-2984
Türkiye
Publication Date
March 27, 2020
Submission Date
October 18, 2019
Acceptance Date
March 23, 2020
Published in Issue
Year 2020 Volume: 16 Number: 1