| 以金纳米粒子为探针研究二价金属离子与脂质双层膜的相互作用 |
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| 引用本文： | 刘小花,白海鑫,李永芳,侯影.以金纳米粒子为探针研究二价金属离子与脂质双层膜的相互作用[J].河南科学,2009(5). |
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| 作者姓名： | 刘小花 白海鑫 李永芳 侯影 |
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| 作者单位： | 1. 河南农业大学,理学院,郑州,450002
2. 河南科技学院,化学化工学院,河南,新乡,453003 |
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| 基金项目： | 河南农业大学博士科研启动基金 |
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| 摘 要： | 采用一步法制备了二1-联十六烷醇磷酸氢酯(DHP)脂质双层膜保护的金纳米粒子,并以此为探针用紫外-可见吸收光谱法研究了二价金属离子Ca2+和Mg2+与金纳米粒子表面支撑的DHP双层膜之间的相互作用.结果表明,Ca2+和Mg2+能够促使DHP双层膜发生聚集、融合和倒塌,并且Ca2+的作用要强于Mg2+.
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| 关 键 词： | 金纳米离子 二价金属离子 脂质双层膜 紫外-可见吸收光谱 |
Study of the Interaction between Divalent Ions and Lipid Bilayer Using Au Nanoparticles as Probe |
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| Liu Xiaohua,Bai Haixin,Li Yongfang,Hou Ying.Study of the Interaction between Divalent Ions and Lipid Bilayer Using Au Nanoparticles as Probe[J].Henan Science,2009(5). |
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| Authors: | Liu Xiaohua Bai Haixin Li Yongfang Hou Ying |
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| Institution: | 1.College of Sciences;Henan Agricultural University;Zhengzhou 450002;China;2.College of Chemistry and Chemical Engineering;Henan Institute of Science and Technology;Xinxiang 453003;Henan China |
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| Abstract: | The dihexadecyl phosphate(DHP)bilayer-protected Au nanopartilces were prepared by a simple one-step method.The interactions between divalent ions(Ca2+ and Mg2+)and DHP bilayers supported in the surface of Au nanoparticles were investigated with Au nanoparticles as probes by using UV-vis spectroscopy.The experimental results showed that Ca2+ and Mg2+ could induce DHP bilayer aggregate,fuse even collapse and the effect of Ca2+ was stronger than that of Mg2+. |
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| Keywords: | Au nanoparticles divalent ions lipid bilayer UV-vis spectroscopy |
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