4-Keto-bacteriorhodopsin films as a promising photochromic and electrochromic biological material
Photochromic and electrochromic spectral properties of 4-keto-bacteriorhodopsin (4-keto-BR) embedded in a polymer matrix were studied. The light-induced spectral changes were found to be similar to those for 4-keto-BR in suspension, but the duration of the photocycle is substantially longer (up to t...
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Published in | BioSystems Vol. 35; no. 2; pp. 129 - 132 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
Ireland
Elsevier Ireland Ltd
1995
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Subjects | |
Online Access | Get full text |
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Summary: | Photochromic and electrochromic spectral properties of 4-keto-bacteriorhodopsin (4-keto-BR) embedded in a polymer matrix were studied. The light-induced spectral changes were found to be similar to those for 4-keto-BR in suspension, but the duration of the photocycle is substantially longer (up to ten of h). Application of a constant electric field induces a bathochromic shift of the main absorption band, the amplitude of the field-induced spectral changes, showing a quadratic dependence on the field strength. Polymer films containing bacteriorhodopsin analogs show promise as new spectrally-selective photochromic and electrochromic materials. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 0303-2647 1872-8324 |
DOI: | 10.1016/0303-2647(94)01499-W |