Ramakrishnan, G., González-Jiménez, M. , Lapthorn, A. J. and Wynne, K. (2017) Spectrum of slow and super-slow (picosecond to nanosecond) water dynamics around organic and biological solutes. Journal of Physical Chemistry Letters, 8(13), pp. 2964-2970. (doi: 10.1021/acs.jpclett.7b01127) (PMID:28612605)
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Abstract
Water dynamics in the solvation shell of solutes plays a very important role in the interaction of biomolecules and in chemical reaction dynamics. However, a selective spectroscopic study of the solvation shell is difficult because of the interference of the solute dynamics. Here we report on the observation of heavily slowed down water dynamics in the solvation shell of different solutes by measuring the low-frequency spectrum of solvation water, free from the contribution of the solute. A slowdown factor of ~50 is observed even for relatively low concentrations of the solute. We go on to show that the effect can be generalized to different solutes including proteins.
| Item Type: | Articles |
|---|---|
| Additional Information: | Also acknowledge award EP/J00975X/1 to University of Strathclyde. |
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Lapthorn, Dr Adrian and Gonzalez Jimenez, Dr Mario and Wynne, Professor Klaas and Ramakrishnan, Dr Gopakumar |
| Authors: | Ramakrishnan, G., González-Jiménez, M., Lapthorn, A. J., and Wynne, K. |
| College/School: | College of Science and Engineering > School of Chemistry |
| Journal Name: | Journal of Physical Chemistry Letters |
| Publisher: | American Chemical Society |
| ISSN: | 1948-7185 |
| ISSN (Online): | 1948-7185 |
| Published Online: | 14 June 2017 |
| Copyright Holders: | Copyright © 2017 American Chemical Society |
| First Published: | First published in Journal of Physical Chemistry Letters 8(13):2964–2970 |
| Publisher Policy: | Reproduced under a Creative Commons license |
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