A Super Highly Sensitive Glucose Biosensor Based on Ag/PPy Nanoparticle-Ethyl Cellulose Hybrid Materials |
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| Journal | Advanced Materials Research (Volume 58) |
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| Volume | Powder Technology and Application |
| Edited by | Guosheng Gai |
| Pages | 15-20 |
| DOI | 10.4028/www.scientific.net/AMR.58.15 |
| Citation | Xiang Zhong Ren et al., 2008, Advanced Materials Research, 58, 15 |
| Online since | October, 2008 |
| Authors | Xiang Zhong Ren, Pei Xin Zhang, Jian Hong Liu, Qian Ling Zhang |
| Keywords | Ag/PPy Nanoparticles, Biosensor, Conducting Powder, Glucose Oxidase |
| Abstract | Ag/polypyrrole(PPy) composite nanoparticles within 100 to 150nm diameter were successfully synthesized. Fourier transform infrared spectroscopy(FTIR) and X-ray diffraction patterns(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 1.0×10-7mol/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. |
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