| 水溶性量子点的制备及其与壳聚糖衍生物的自组装 |
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| 引用本文： | 徐海娥,闫翠娥. 水溶性量子点的制备及其与壳聚糖衍生物的自组装[J]. 高等学校化学学报, 2007, 28(1): 169-172 |
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| 作者姓名： | 徐海娥 闫翠娥 |
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| 作者单位： | 湖北大学化学化工学院,武汉,430062;湖北大学化学化工学院,武汉,430062 |
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| 基金项目： | 湖北省武汉市青年科技晨光计划 , 湖北省科技厅科研项目 |
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| 摘 要： | 以3-巯基丙酸(HS-CH2CH2COOH)为稳定剂, 制备了水溶性的碲化镉(CdTe)量子点(QDs), 考察了制备条件对QDs荧光性能的影响及CdTe QDs与壳聚糖及叶酸和聚乙二醇改性的壳聚糖的自组装. 研究发现, 壳聚糖及改性壳聚糖与QDs的复合物荧光强度相对纯的CdTe QDs明显增强, 且QDs被包裹在内核, 复合粒子呈明显的核/壳结构. 改性壳聚糖/QDs复合物较小且尺寸分布更为均一.
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| 关 键 词： | 水溶性量子点 壳聚糖 壳聚糖衍生物 自组装 |
| 文章编号： | 0251-0790（2007）01-0169-04 |
| 收稿时间： | 2006-06-27 |
| 修稿时间： | 2006-06-27 |
Preparation of Water-soluble Quantum Dots and Their Self-assembly with Chitosan Derivatives |
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| XU Hai-E,YAN Cui-E. Preparation of Water-soluble Quantum Dots and Their Self-assembly with Chitosan Derivatives[J]. Chemical Research In Chinese Universities, 2007, 28(1): 169-172 |
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| Authors: | XU Hai-E YAN Cui-E |
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| Affiliation: | Faculty of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, China |
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| Abstract: | Water-soluble CdTe quantum dots(QDs) were prepared by using 3-mercaptopropionic acid as the stabilizer,and their preparation parameters were optimized.Self-assembling of QDs with chitosan and folic acid(FA) and poly(ethylene glycol)(PEG) modified chitosan via electrostatic interaction was also investigated.The results demonstrate that fluorescence intensity of chitosan/QDs complex was much higher than that of QDs themselves.The complex shows a clear core/shell structure,and QDs were located in the core.The modified chitosan/QDs complexes were smaller and more uniform than those of unmodified chitosan. |
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| Keywords: | Water-soluble quantum dots Chitosan Chitosan derivative Self-assembly |
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