| 多壁碳纳米管在精氨酸溶液中分散性的pH敏感性 |
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| 引用本文： | 刘润平,黄可龙,刘素琴,唐金春. 多壁碳纳米管在精氨酸溶液中分散性的pH敏感性[J]. 化学学报, 2009, 67(1): 83-87 |
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| 作者姓名： | 刘润平 黄可龙 刘素琴 唐金春 |
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| 作者单位： | 中南大学化学化工学院,长沙,410083;中南大学化学化工学院,长沙,410083;中南大学化学化工学院,长沙,410083;中南大学化学化工学院,长沙,410083 |
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| 基金项目： | 国家自然科学基金，中南大学博士研究生创新基金 |
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| 摘 要： | 通过非共价反应将精氨酸包覆于多壁碳纳米管上, 并用荧光分光光度计和原子力显微镜检测其在不同pH值条件下的分散性和凝聚性. 结果表明: 改性后的碳纳米管的分散性具有pH敏感性, pH值越大, 分散性越好, 且灵敏度高. 同时对其pH敏感性的机理进行了分析与讨论. 这将对碳纳米管在药物载送、生物传感等方面的应用有重要的意义.
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| 关 键 词： | 多壁碳纳米管 精氨酸 非共价修饰 pH敏感性 |
| 收稿时间： | 2008-05-27 |
| 修稿时间： | 2008-07-20 |
pH-Responsive Multi-walled Carbon Nanotube Dispersions in Arginine Solution |
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| Liu, Runping,Huang, Kelong,Liu, Suqin,Tang, Jinchun. pH-Responsive Multi-walled Carbon Nanotube Dispersions in Arginine Solution[J]. Acta Chimica Sinica, 2009, 67(1): 83-87 |
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| Authors: | Liu Runping Huang Kelong Liu Suqin Tang Jinchun |
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| Affiliation: | College of Chemistry and Chemical Engineering;Central South University;Changsha 410083 |
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| Abstract: | The multi-walled carbon nanotubes (MWNT) were wrapped with arginines in noncovalent interactions and their dispersion and aggregation at different pH was detected using a fluorophotometer and an atomic force microscope. The result shows that the MWNT modified by arginines owns sensitive pH-response dispersions and the higher the pH, the better the dispersion. The mechanism of pH-response was also analyzed and discussed intensively. This will be of great significance for MWNT to be used as drug delivery and ... |
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| Keywords: | MWNT (multi-walled carbon nanotube) arginine noncovalent interaction pH-response |
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