TY - JOUR
T1 - Preparation of glucose sensors using gold nanoparticles modified diamond electrode
AU - Fachrurrazie,
AU - Anggraningrum, Ivandini Tribidasari
AU - Wibowo, Widayanti
N1 - Publisher Copyright:
© Published under licence by IOP Publishing Ltd.
PY - 2017/5/2
Y1 - 2017/5/2
N2 - A glucose sensor was successfully developed by immobilizing glucose oxidase (GOx) at boron-doped diamond (BDD) electrodes. Prior to GOx immobilization, the BDD was modified with gold nanoparticles (AuNPs). To immobilize AuNPs, the gold surface was modified to nitrogen termination. The characterization of the electrode surface was performed using an X-ray photoelectron spectroscopy and a scanning electron microscope, while the electrochemical properties of the enzyme electrode were characterized using cyclic voltammetry. Cyclic voltammograms of the prepared electrode for D-glucose in phosphate buffer solution pH 7 showed a new reduction peak at +0.16 V. The currents of the peak were linear in the concentration range of 0.1 M to 0.9 M, indicated that the GOx-AuNP-BDD can be applied for electrochemical glucose detection.
AB - A glucose sensor was successfully developed by immobilizing glucose oxidase (GOx) at boron-doped diamond (BDD) electrodes. Prior to GOx immobilization, the BDD was modified with gold nanoparticles (AuNPs). To immobilize AuNPs, the gold surface was modified to nitrogen termination. The characterization of the electrode surface was performed using an X-ray photoelectron spectroscopy and a scanning electron microscope, while the electrochemical properties of the enzyme electrode were characterized using cyclic voltammetry. Cyclic voltammograms of the prepared electrode for D-glucose in phosphate buffer solution pH 7 showed a new reduction peak at +0.16 V. The currents of the peak were linear in the concentration range of 0.1 M to 0.9 M, indicated that the GOx-AuNP-BDD can be applied for electrochemical glucose detection.
KW - Biosensors
KW - boron-doped diamond
KW - glucose oxidase
KW - gold nanoparticles
UR - http://www.scopus.com/inward/record.url?scp=85019723527&partnerID=8YFLogxK
U2 - 10.1088/1757-899X/188/1/012046
DO - 10.1088/1757-899X/188/1/012046
M3 - Conference article
AN - SCOPUS:85019723527
SN - 1757-8981
VL - 188
JO - IOP Conference Series: Materials Science and Engineering
JF - IOP Conference Series: Materials Science and Engineering
IS - 1
M1 - 012046
T2 - International Symposium on Current Progress in Functional Materials 2016, ISCPFM 2016
Y2 - 26 July 2016 through 27 July 2016
ER -