Control of the orientation of photosynthetic reaction center proteins using an applied bias-voltage Langmuir-Blodgett technique

We investigated the orientation control of photosynthetic reaction center proteins (RCs) by preparing RC Langmuir-Blodgett films in which a DC bias voltage ranging from -0.5 V to +0.5 V was applied (using a potentiostat) during film deposition. The bias voltage was applied between a conductive indiu...

Full description

Saved in:
Bibliographic Details
Published in:Japanese Journal of Applied Physics 1997-05, Vol.36 (5A), p.L577-L579
Main Authors: YASUDA, Y, HARA, M, MIYAKE, J, TOYOTAMA, H
Format: Article
Language:English
Subjects:
Biological and medical sciences
Fundamental and applied biological sciences. Psychology
In solution. Condensed state. Thin layers
Molecular biophysics
Physico-chemical properties of biomolecules
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We investigated the orientation control of photosynthetic reaction center proteins (RCs) by preparing RC Langmuir-Blodgett films in which a DC bias voltage ranging from -0.5 V to +0.5 V was applied (using a potentiostat) during film deposition. The bias voltage was applied between a conductive indium-tin-oxide coated glass substrate and a subphase through a helical platinum counter electrode. The orientation was evaluated using displacement-current measurement and photoelectron spectroscopy. Our results confirm that molecular orientation of RCs in the films was controlled by the polarity of the applied voltage.
ISSN:0021-4922
1347-4065
DOI:10.1143/jjap.36.l577