A NMR Investigation on the interaction of Lanthanide Complexes with Phospholipid Bilayers

Chem. J. Chinese Universities ›› 1996, Vol. 17 ›› Issue (1): 10.

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A NMR Investigation on the interaction of Lanthanide Complexes with Phospholipid Bilayers

YUAN Chun-Bo¹, ZHAO Da-Qing², WU Yi-Jie², PEI Feng-Kui², NI Jia-Zuan²

1. Laboratory of Molecular &Biomolecular Electronics, Department of Chemistry, Southeast University, Nanjing 210096;
2. Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Academia Sinica

Received:1995-03-30 Online:1996-01-24 Published:1996-01-24

Abstract

Abstract: One and two dimentional NMRmethods were used to investigate the interactionsof lanthanide complexes(Lncit₂ and Ln-DTPA)with phospholipid bilayers. The resultsshowed that in the phospholipid bilayers dispersion containing citrate ligand at pH 7.4,lan-thanide ions would initially combine with citrate ligand and form Lncit₂ complexes whichhave little effect on the structure of phospholipid bilayers. Ln-DTPAcomplex does not affectthe bilayers structure either.These results provided important experimental data for evaluat-ing scientifically the toxicities of lanthanide ions when they were introduced into the biologi-cal body.

Key words: Rare earth, Lanthanide complex, Phospholipid, NMR method

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YUAN Chun-Bo, ZHAO Da-Qing, WU Yi-Jie, PEI Feng-Kui, NI Jia-Zuan. A NMR Investigation on the interaction of Lanthanide Complexes with Phospholipid Bilayers[J]. Chem. J. Chinese Universities, 1996, 17(1): 10.

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A NMR Investigation on the interaction of Lanthanide Complexes with Phospholipid Bilayers

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