| 银-磷酸钛纳米复合膜的构建及其电化学生物传感 |
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| 引用本文： | 王新莹,蔡文怡,姜立萍,朱俊杰.银-磷酸钛纳米复合膜的构建及其电化学生物传感[J].无机化学学报,2008,24(12):1923-1927. |
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| 作者姓名： | 王新莹 蔡文怡 姜立萍 朱俊杰 |
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| 作者单位： | 南京大学化学化工学院,南京,210093 |
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| 基金项目： | 国家自然科学基金资助项目
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| 摘 要： | 利用ITO基底上层层组装构建的多层内嵌银纳米粒子的磷酸钛薄膜固定了血红蛋白并且用于生物传感研究。由于银纳米粒子与磷酸钛膜的协同作用，实验中可以观察到Hb的直接电子传递。研究表明所制备的Hb-Ag-TiP/PDDA/ITO电极对H2O2响应迅速、稳定，检测限达3.3×10-6 mol·L-1。
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| 关 键 词： | 层层组装 生物传感 Ag纳米粒子 磷酸钛 血红蛋白 过氧化氢 |
The Construction of Ag NPs-Titanium Phosphate Hybrid Ultrathin Film and its Electrochemical Biosensing |
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| WANG Xin-Ying,CAI Wen-Yi,JIANG Li-Ping and ZHU Jun-Jie.The Construction of Ag NPs-Titanium Phosphate Hybrid Ultrathin Film and its Electrochemical Biosensing[J].Chinese Journal of Inorganic Chemistry,2008,24(12):1923-1927. |
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| Authors: | WANG Xin-Ying CAI Wen-Yi JIANG Li-Ping and ZHU Jun-Jie |
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| Institution: | Key Lab of Analytical Chemistry for Life Science(MOE), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093,Key Lab of Analytical Chemistry for Life Science(MOE), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093,Key Lab of Analytical Chemistry for Life Science(MOE), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093 and Key Lab of Analytical Chemistry for Life Science(MOE), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093 |
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| Abstract: | Hb was immobilized on the ITO electrode modified with Ag NPs-titanium phosphate hybrid films which were prepared with layer-by-layer technique and then the prepared electrode was used for electrochemical biosensing. The direct electron transfer of Hb could be observed due to the synergic effect of titanium phosphate and Ag NPs. The results showed that the as-prepared biosensor exhibited a fast and stable amperometric response to H2O2 with a detection limit of 3.3×10-6 mol·L-1. |
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| Keywords: | layer-by-layer biosensing Ag NPs titanium phosphate hemoglobin H2O2 |
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