| 罗丹明B聚合物修饰单壁碳纳米管薄膜电极的制备、表征及一氧化氮活体分析应用 |
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| 引用本文： | 胡成国,吉义平,丁艳,胡胜水,HU Sheng-shui.罗丹明B聚合物修饰单壁碳纳米管薄膜电极的制备、表征及一氧化氮活体分析应用[J].分析科学学报,2010,26(3). |
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| 作者姓名： | 胡成国 吉义平 丁艳 胡胜水 HU Sheng-shui |
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| 作者单位： | 1. 武汉大学化学与分子科学学院,湖北武汉,430072;中国科学院传感技术国家重点实验室,北京,100080
2. 武汉大学化学与分子科学学院,湖北武汉,430072 |
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| 摘 要： | 以单壁碳纳米管作为电极材料,基于减压过滤和电聚合方法制备了一种薄膜型一氧化氮(NO)电化学传感器。扫描电镜、红外光谱和电化学交流阻抗表征表明,减压过滤可以制备出导电性好、电分析性能优良的薄膜电极,而罗丹明B能通过电聚合在其表面形成高比表面的纳米敏感结构。这种薄膜型电化学传感器对NO具有灵敏的电化学响应,其安培氧化电流与NO浓度在7.2×10-8~2.5×10-5mol/L范围内呈良好的线性关系,检出限(S/N=3)达3.6×10-8mol/L。将该传感器紧贴在麻醉豚鼠的肝脏表面,成功实现了肝组织细胞在L-精氨酸刺激下NO释放的实时监测。
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| 关 键 词： | 碳纳米管 薄膜电极 罗丹明B 一氧化氮 电化学传感器 |
Thin-Film Electrochemical Sensors Based on Single-Walled Carbon Nanotubes for Real-Time Monitoring of Nitric Oxide Release from Rat Liver Tissues |
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| HU Cheng-guo,JI Yi-ping,DING Yan,XU Jun-hui,HU Sheng-shui.Thin-Film Electrochemical Sensors Based on Single-Walled Carbon Nanotubes for Real-Time Monitoring of Nitric Oxide Release from Rat Liver Tissues[J].Journal of Analytical Science,2010,26(3). |
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| Authors: | HU Cheng-guo JI Yi-ping DING Yan XU Jun-hui HU Sheng-shui |
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| Institution: | HU Cheng-guo1,2,JI Yi-ping1,DING Yan1,XU Jun-hui1,HU Sheng-shui1,2 (1.College of Chemistry and Molecular Sciences,Wuhan University,Wuhan 430072,2.State Key Laboratory of Transducer Technology,Chinese Academy of Sciences,Beijing 100080) |
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| Abstract: | A simple strategy for fabricating a sensitive thin-film electrochemical sensor of nitric oxide(NO) based on single-walled carbon nanotube(SWNT) conducting films was proposed.The sensor was prepared by depositing a SWNT film on a mixed cellulose membrane through vacuum filtration and coating the SWNT film with a polyrhodamine B(PRhB) sensing film by electropolymerization.Scanning electron microscopic and electrochemical characterizations suggested that the electrochemical activation of SWNTs and the formatio... |
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| Keywords: | Carbon nanotubes Thin-film electrodes Rhodamine B Nitric oxide Electrochemical sensors |
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