Title :
A biosensor based on a poly(3,4-ethylenedioxythiophene)-Pt modified screen-printed carbon electrode
Author :
Chang, Li-Chi ; Wu, Huan-Nung ; Lai, Yi-Hsuan ; Hu, Chih-Wei ; Ho, Kuo-Chuan
Author_Institution :
Dept. of Chem. Eng., Nat. Taiwan Univ., Taipei, Taiwan
Abstract :
EDOT monomer and Pt nanoparticles were polymerized under UV and drop coated on a screen-printed carbon electrode (SPCE). The PEDOT-Pt SPCE enhances electrocatalytic properties, similar to that of the PEDOT-Au film. Under 0.5 mM ascorbic acid (AA), the PEDOT-Pt SPCE showed an enhancement of peak current to 1.66 μA from 1.32 μA with reference to a bare SPCE, and a reduction of the peak potential from 0.55 to 0.51 V. The composite film performed better under acid treatment.
Keywords :
biosensors; carbon; electrodes; platinum; polymer films; polymerisation; C; EDOT monomer; PEDOT-Au film; PEDOT-Pt SPCE electrocatalytic properties; Pt; acid treatment; ascorbic acid; biosensor; composite film; nanoparticles; peak current; poly(3,4-ethylenedioxythiophene)-Pt modified screen-printed; polymerization; screen-printed carbon electrode; Carbon; Chemical sensors; Current density; Electrodes; Films; Polymers; Sensors; Acid treatment; PEDOT; Pt nanoparticles; ascorbic acid; photochemical polymerization;
Conference_Titel :
Nanoelectronics Conference (INEC), 2011 IEEE 4th International
Conference_Location :
Tao-Yuan
Print_ISBN :
978-1-4577-0379-9
Electronic_ISBN :
2159-3523
DOI :
10.1109/INEC.2011.5991790
