A Hydrogen Peroxide Electrochemical Sensor Based on an Alginate/Water-Soluble Prussian Blue/Reduced Graphene Oxide Composite Modified Electrode알지네이트/수용성 프러시안 블루/환원된 그래핀 옥사이드 복합체를 이용한전극 개질에 따른 과산화 수소 센서 개발
- Authors
- 윤옥자
- Issue Date
- Nov-2018
- Publisher
- 한국고분자학회
- Keywords
- A/s-PB/rGO modified electrode; A/s-PB modified electrode; A/rGO modified electrode; electrochemical sensor; hydrogen peroxide.
- Citation
- 폴리머, v.42, no.6, pp 1104 - 1109
- Pages
- 6
- Journal Title
- 폴리머
- Volume
- 42
- Number
- 6
- Start Page
- 1104
- End Page
- 1109
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/45085
- DOI
- 10.7317/pk.2018.42.6.1104
- ISSN
- 0379-153X
2234-8077
- Abstract
- An electrochemical H2O2 sensor was developed using an alginate/water-soluble prussian blue/reduced graphene oxide (A/s-PB/rGO) composite on carbon screen printed electrodes for use in bioapplications. Carbon screenprinted working electrodes were modified with A/s-PB, A/rGO, and A/s-PB/rGO composite solutions by in situ gelation.
The composites were characterized by Fourier transform infrared spectroscopy and field emission scanning electron microscopy. The cyclic voltammetric measurements made using the electrode modified by A/s-PB/rGOs showed improved electrochemical reaction and stability over the A/s-PB and A/rGO modified electrodes. A two-electron transfer process is indicated at the modified electrode surface. The oxidation current showed a detection limit of 4 mM (S/N = 3) and linear range of 4–28 mM. The A/s-PB/rGO modified electrode provides a tool for high-sensitivity (2.7 μA·mM-1·cm-2) and stable H2O2 analyses with a low limit of detection. Development of biosensor-based modified electrodes is important for biomedical and environmental applications.
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