茜素红与壳聚糖的相互作用机理研究 |
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引用本文: | 高贵珍,焦庆才,刘茜,丁一磊,陈雷. 茜素红与壳聚糖的相互作用机理研究[J]. 化学学报, 2003, 61(8): 1294-1298 |
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作者姓名: | 高贵珍 焦庆才 刘茜 丁一磊 陈雷 |
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作者单位: | 1. 南京大学生命科学学院,药物生物技术国家重点实验室,南京,210093;宿州师范专科学校生化系,宿州,234000 2. 南京大学生命科学学院,药物生物技术国家重点实验室,南京,210093 |
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摘 要: | 应用光谱法研究在pH=5.0的反应体系中壳聚糖(CTS)与茜素红(AR)的结合 反应,考察了反应体系中AR/CTS摩尔比、NaCl浓度及CTS的脱乙酰度对茜素红与壳 聚糖相互作用的影响,通过实验测得CTS对AR的最大结合数N_E=4.78×10~3,理论 模型预测最大结合数N_c=4.73×10~3,实验值与理论值一致,并对壳聚糖与茜素红 的相互作用机理提出了合理的解释。
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关 键 词: | 壳聚糖 茜素红 分光光度法 氯化钠 相互作用 |
修稿时间: | 2002-12-24 |
Study on the Mechanism of the Interaction between Chitosan and Alizarin Red |
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Affiliation: | Pharmaceutic Biotechnology Key Laboratory, College of Life Science, Nanjing University |
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Abstract: | The interaction of chitosan (CTS) and alizarin red (AR) at pH = 5.0 was studied by absorption spectra. The influence of the molar ratio of AR/CTS, different concentrations of NaCl and deacetylation degrees of CTS on the interaction between chitosan and alizarin red was investigated. The maximum binding numbers (N_e = 4.78 * 103, N_c = 4. 73 * 103) were obtained by spectroscopic experiment and theoretical model, respectively. The experimental value is consistent with the theoretical value. |
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Keywords: | chitosan alizarin red spectrometry maximum binding number |
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