Volume 28, Issue 2 pp. 193-198
Full Paper

Interaction between (1,1′-Binaphthalene)-2,2′-diol and Lecithin Liposome

Liuhua Chen

Liuhua Chen

Department of Chemistry, Tongji University, Shanghai 200092, China

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Lihua Gan

Lihua Gan

Tel.: 0086-021-65982654-8430; Fax: 0086-021-65982287

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Shenjing An

Shenjing An

Department of Chemistry, Tongji University, Shanghai 200092, China

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Dazhang Zhu

Dazhang Zhu

Department of Chemistry, Tongji University, Shanghai 200092, China

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Zijie Xu

Zijie Xu

Department of Chemistry, Tongji University, Shanghai 200092, China

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Zhixian Hao

Zhixian Hao

Department of Chemistry, Tongji University, Shanghai 200092, China

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Longwu Chen

Longwu Chen

Department of Chemistry, Tongji University, Shanghai 200092, China

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First published: 02 March 2010
Citations: 1

Abstract

The interaction between (1,1′-binaphthalene)-2,2′-diol (BINOL) and lecithin liposome was studied by UV-Vis, fluorescence and 1H NMR spectroscopies. BINOL can obviously associate with lecithin liposome and the preferential binding site of BINOL with lecithin liposome is located in the headgroup region. The hydrogen bond and electrostatic interaction should exist in BINOL/liposome system, which restricts intra-annular rotation of naphthol moieties. Therefore, the fluorescence intensity of BINOL increases when a small quantity of liposome is added into the system. The partition coefficient KD between the lecithin liposome and the aqueous phase is 310.9. With the increase of BINOL concentration, the micropolarity (I1/I3) and membrane fluidity of liposome decreased, while the viscosity of membrane increased.

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