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Development of Electrochemical Paper‐based Glucose Sensor Using Cellulose‐4‐aminophenylboronic Acid‐modified Screen‐printed Carbon Electrode
Author(s) -
Rungsawang Tipawan,
Punrat Eakkasit,
Adkins Jaclyn,
Henry Charles,
Chailapakul Orawon
Publication year - 2016
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.201500406
Subject(s) - detection limit , cellulose , electrode , glucose oxidase , electrochemistry , screen printing , fabrication , materials science , selectivity , chemistry , carbon paste electrode , carbon fibers , biosensor , nanotechnology , chromatography , cyclic voltammetry , organic chemistry , catalysis , composite material , medicine , alternative medicine , pathology , composite number
The present work describes the fabrication of paper‐based analytical devices (μPADs) by immobilization of glucose oxidase onto the screen printed carbon electrodes (SPCEs) for the electrochemical glucose detection. The sensitivity towards glucose was improved by using a SPCE prepared from homemade carbon ink mixed with cellulose acetate. In addition, 4‐aminophenylboronic acid (4‐APBA) was used as a redox mediator giving a lower detection potential for improvement selectivity. Under optimized condition, the detection limit was 0.86 mM. The proposed device was applied in real samples. This μPAD has many advantages including low sample consumption, rapid analysis method, and low device cost.