Stimuli-responsive polymer-grafted lipid-based complex fluids as organized media for supramolecular photochemistry

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Recent studies involving the use of micelles, reverse micelles, and microemulsions as organized microheterogeneous media for effecting photochemical transformations have led to growing recognition that the nature of the reaction medium (i.e., microenvironment) may strongly influence the course and efficiency of photoinduced electron transfer. Of particular interest in photochemical energy conversion research is the study of such effects in natural photosynthesis, the process whereby plants and photosynthetic bacteria convert light into chemical energy. The primary process in photosynthesis occurs in trasmembrane pigment-protein complexes called reaction centers (RCs), where following the absorption of light, primary charge separation occurs. This electrochemical energy ... continued below

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9 p.

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Firestone, M. A.; Tiede, D. M.; Seifert, S. & Thiyagarajan, P. February 11, 2000.

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  • Argonne National Laboratory
    Publisher Info: Argonne National Laboratory, Argonne, IL (United States)
    Place of Publication: Argonne, Illinois

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Recent studies involving the use of micelles, reverse micelles, and microemulsions as organized microheterogeneous media for effecting photochemical transformations have led to growing recognition that the nature of the reaction medium (i.e., microenvironment) may strongly influence the course and efficiency of photoinduced electron transfer. Of particular interest in photochemical energy conversion research is the study of such effects in natural photosynthesis, the process whereby plants and photosynthetic bacteria convert light into chemical energy. The primary process in photosynthesis occurs in trasmembrane pigment-protein complexes called reaction centers (RCs), where following the absorption of light, primary charge separation occurs. This electrochemical energy is stored, and the initial charge separation used to drive all subsequent electron and proton transfer reactions in photosynthesis. One area of current research interest is the determination of the effect of conformational changes in detergent-solubilized RCs on electron transfer. In this report, the authors consider a related issue: the introduction of RCs into biomembrane mimetics and its impact on protein conformation, orientation, and function. As a medium for these studies, they have employed a recently developed stimulus-responsive complex fluid (smart material) that possesses the ability to respond to an environmental change/external stimulus on a molecular level and amplify it in the form of a macroscopically observable phase/structural change.

Physical Description

9 p.

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OSTI as DE00751901

Medium: P; Size: 9 pages

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  • 219th American Chemical Society National Meeting, San Francisco, CA (US), 03/26/2000--03/30/2000

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  • Report No.: ANL/CHM/CP-101024
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 751901
  • Archival Resource Key: ark:/67531/metadc703210

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  • February 11, 2000

Added to The UNT Digital Library

  • Sept. 12, 2015, 6:31 a.m.

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  • April 11, 2017, 9:06 p.m.

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Firestone, M. A.; Tiede, D. M.; Seifert, S. & Thiyagarajan, P. Stimuli-responsive polymer-grafted lipid-based complex fluids as organized media for supramolecular photochemistry, article, February 11, 2000; Argonne, Illinois. (digital.library.unt.edu/ark:/67531/metadc703210/: accessed July 20, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.