Distinct water species confined at the interface of a phospholipid membrane

被引：68

作者：

Volkov, Victor V.

Palmer, D. Jason

Righini, Roberto

机构：

[1] Univ Florence, European Lab Nonlinear Spectroscopy LENS, I-50019 Sesto Fiorentino, Italy

[2] Univ Florence, Dept Chem, I-50019 Sesto Fiorentino, Italy

来源：

PHYSICAL REVIEW LETTERS | 2007年 / 99卷 / 07期

关键词：

D O I：

10.1103/PhysRevLett.99.078302

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The physics of confined water has stimulated extensive research in recent years, in particular, regarding the role of hydrogen bonding as a significant factor in the observed dynamics. In this work, two-dimensional infrared spectroscopy was employed to investigate the response of the OH moiety of water in phospholipid membrane samples. The results show strong evidence for three distinct hydrogen bonding motifs (H2O with zero, one, or both OH moieties hydrogen bonded), whose relative proportions at the membrane interface are estimated.

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页数：4

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