A super highly sensitive glucose biosensor based on Ag/PPy nanoparticle-ethyl cellulose hybrid materials
Ag/polypyrrole(PPy) composite nanoparticles within 100 to 150nm diameter were successfully synthesized. Fourier transform infrared spectroscopy(FTIR) and X-ray diffraction pattems(XRD) data suggested that the nanoparticles were composed of Ag and PPy. An amperometric glucose biosensor was fabricated by adsorbing of glucose oxidase(GOx) to an Ag/PPy nanoparticle-ethyl cellulose composite material modified platinum electrode. The biosensor exhibited a super highly sensitive response to the analyte with a detection limit of 1.0x 10-7mol/L.Moreover, the biosensor showed quick current response. The effects of some factors, such as working voltage, pH value, mensuration temperature and mass ratio of Ag/PPy nanoparticles to ethyl cellulose, were also studied.
Ag/PPy nanoparticles Biosensor Glucose oxidase Conducting powder
Xiang-zhong Ren Pei-xin Zhang Jian-hong Liu Qian-ling Zhang
School of Chemistry and Chemical Engineering,Shenzhen University,Shenzhen 518060,China
国际会议
2008国际粉体技术与应用论坛暨全国粉体产品与设备应用技术交流大会
北京
英文
15-20
2008-04-01（万方平台首次上网日期，不代表论文的发表时间）