PHYS 327 |
| Computer simulations and theortical analyses have been used to explore the mechanism of orientational relaxation at the surface of lysozyme. We find that the Laage-Hynes mechanism of large amplitude jump induced orientational relaxation continues to be operative even in protein hydration layer. However, the amplitude of jump is found to be larger than that in the bulk, and the mechanism of jumps could be somewhat different. Dynamics in general slow down noticeably in the hydration layer. We shall also report studies of water dynamics in the major and minor grooves of a 38 base pair long DBA double helix. Here dynamics of water in the minor groove display features one usually observes in supercooled water. |
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PHYS Poster Session - Optical Probes of Dynamics in Complex Environments
7:30 PM-10:00 PM, Wednesday, April 9, 2008 Morial Convention Center -- Hall A, Poster
Division of Physical Chemistry |