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Development of Silver Nanowires Based Highly Sensitive Amperometric Glucose Biosensor
Author(s) -
Ahmad Mashkoor,
Sun Hongyu,
Hussain Muhammad,
Karim Shafqat,
Nisar Amjad,
Khan Maaz
Publication year - 2015
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.201400670
Subject(s) - biosensor , amperometry , detection limit , materials science , linear range , hydrogen peroxide , electrochemistry , electrode , nanotechnology , glucose oxidase , nanowire , glassy carbon , chemistry , chromatography , cyclic voltammetry , organic chemistry
The fabrication of a highly sensitive amperometric glucose biosensor based on silver nanowires (AgNWs) is presented. The electrochemical behavior of glassy carbon electrode modified by Ag NWs exhibits remarkable catalytic performance towards hydrogen peroxide (H 2 O 2 ) and glucose detection. The biosensor could detect glucose in the linear range from 0.005 mM to 10 mM, with a detection limit of 50 µM ( S / N =3). The glucose biosensor shows high and reproducible sensitivity of 175.49 µA cm −2 mM and good stability. In addition, the biosensor exhibits a good anti‐interference ability and favorable stability over relatively long‐term storage (more than 21 days).