Files in this item

FilesDescriptionFormat

application/pdf

application/pdf1984_marque.pdf (4MB)Restricted to U of Illinois
1984_marquePDF

Description

Title:Thermodynamic and kinetic studies of purple membrane from halobacterium halobium
Author(s):Marque, Jeffrey Joshua
Doctoral Committee Chair(s):Eisenstein, Bob I.
Department / Program:Physics
Discipline:Physics
Degree:Ph.D.
Genre:Dissertation
Subject(s):thermodynamics
kinetics
purple membrane
halobacterium halobium
flash photolysis
solvent viscosity
Abstract:This thesis is a report on three separate but closely related experiments with the energy tranducing purple membrane from Halobacterium halobium. In the first experiment, we used flash photolysis to measure the effects of solvent viscosity on the kinetics of the purple membrane photocycle, and we analyzed the data in terms of a modified Kramers' theory. In the second experiment, we determined the purple membrane's apparent density, thermal expansivity, isothermal and adiabatic compressibilities, and specific heats at constant pressure and constant volume. In the final experiment, we studied the effects of high pressure on the kinetics of the photocycle. We found that all of the distinct processes in the photocycle are retarded by pressure. The results of the pressure and viscosity studies are very highly correlated. We interpret this to mean that the primary effect of pressure on the photocycle is via its increase of the intrinsic viscosity of the membrane.
Issue Date:1984
Genre:Dissertation / Thesis
Type:Text
Language:English
URI:http://hdl.handle.net/2142/25345
Rights Information:1984 Jeffrey Joshua Marque
Date Available in IDEALS:2011-06-07
Identifier in Online Catalog:840250


This item appears in the following Collection(s)

Item Statistics