TY - JOUR
T1 - Nonenzymatic glucose sensor based on over-oxidized polypyrrole modified Pd/Si microchannel plate electrode
AU - Shi, Jing
AU - Ci, Pengliang
AU - Wang, Fei
AU - Peng, Hui
AU - Yang, Pingxiong
AU - Wang, Lianwei
AU - Ge, Shuli
AU - Wang, Qingjiang
AU - Chu, Paul K.
PY - 2011/1/15
Y1 - 2011/1/15
N2 - A silicon microchannel plate (MCP) array electrode modified with over-oxidized polypyrrole (OPPy) has been fabricated to detect glucose. The morphology and structure of the electrode are characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The OPPy modified silicon MCP array electrode exhibits high electrocatalytic activity as well as excellent selectivity to the electrochemical oxidation of glucose. At a potential of +0.08V, good sensitivity of 0.37mAmM-1cm-2 and detection limit of 2.06μM are attained. The linear range is up to 24mM with a linear correlation coefficient of 0.997. Furthermore, the electrode is highly resistant to interfering substances because the effects of common coexisting substances can be effectively eliminated by the OPPy film and the response in the current to interferences on the electrode surface is almost negligible. This novel electrode has high potential in nonenzymatic detection of glucose.
AB - A silicon microchannel plate (MCP) array electrode modified with over-oxidized polypyrrole (OPPy) has been fabricated to detect glucose. The morphology and structure of the electrode are characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The OPPy modified silicon MCP array electrode exhibits high electrocatalytic activity as well as excellent selectivity to the electrochemical oxidation of glucose. At a potential of +0.08V, good sensitivity of 0.37mAmM-1cm-2 and detection limit of 2.06μM are attained. The linear range is up to 24mM with a linear correlation coefficient of 0.997. Furthermore, the electrode is highly resistant to interfering substances because the effects of common coexisting substances can be effectively eliminated by the OPPy film and the response in the current to interferences on the electrode surface is almost negligible. This novel electrode has high potential in nonenzymatic detection of glucose.
KW - Nonenzymatic glucose sensor
KW - Over-oxidized polypyrrole
KW - Palladium nanoparticle
KW - Silicon microchannel plate
KW - Three dimensional array
UR - https://www.scopus.com/pages/publications/78650607652
U2 - 10.1016/j.bios.2010.11.010
DO - 10.1016/j.bios.2010.11.010
M3 - 文章
C2 - 21131190
AN - SCOPUS:78650607652
SN - 0956-5663
VL - 26
SP - 2579
EP - 2584
JO - Biosensors and Bioelectronics
JF - Biosensors and Bioelectronics
IS - 5
ER -