University of Illinois Urbana-Champaign

Thermodynamic and kinetic studies of purple membrane from halobacterium halobium

Marque, Jeffrey Joshua

This item is only available for download by members of the University of Illinois community. Students, faculty, and staff at the U of I may log in with your NetID and password to view the item. If you are trying to access an Illinois-restricted dissertation or thesis, you can request a copy through your library's Inter-Library Loan office or purchase a copy directly from ProQuest.

Permalink

https://hdl.handle.net/2142/25345

Description

Title
Thermodynamic and kinetic studies of purple membrane from halobacterium halobium
Author(s)
Marque, Jeffrey Joshua
Issue Date
1984
Doctoral Committee Chair(s)
Eisenstein, Laura
Department of Study
Physics
Discipline
Physics
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
  • thermodynamics
  • kinetics
  • purple membrane
  • halobacterium halobium
  • flash photolysis
  • solvent viscosity
Language
eng
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.
Type of Resource
text
Permalink
http://hdl.handle.net/2142/25345
Copyright and License Information
1984 Jeffrey Joshua Marque

Owning Collections

Dissertations and Theses - Physics
Dissertations in Physics
Graduate Dissertations and Theses at Illinois PRIMARY
Graduate Theses and Dissertations at Illinois