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Proceedings Paper

Grabbing video sequences using protein-based artificial retina
Author(s): Lasse T. Lensu; Jussi P. S. Parkkinen; Sinikka Parkkinen; Timo Jaeaeskelaeinen
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Paper Abstract

Bacteriorhodopsin thin film matrix has been studied for real-time acquisition of video. The proton pumping property of bacteriorhodopsin is reversible, and the relaxation time back to the basic state is approximately 10 ms at ambient temperature. Photostimulation can be used to return bacteriorhodopsin to the basic state in 50 microsecond(s) . The measurements show that the photocycle becomes slower in polyvinylalcohol than in solution, thus the achievable acquisition frequency is limited by the composition of the thin film.

Paper Details

Date Published: 24 April 2002
PDF: 11 pages
Proc. SPIE 4669, Sensors and Camera Systems for Scientific, Industrial, and Digital Photography Applications III, (24 April 2002); doi: 10.1117/12.463452
Show Author Affiliations
Lasse T. Lensu, Lappeenranta Univ. of Technology (Finland)
Jussi P. S. Parkkinen, Univ. of Joensuu (Finland)
Sinikka Parkkinen, Univ. of Joensuu (Finland)
Timo Jaeaeskelaeinen, Univ. of Joensuu (Finland)


Published in SPIE Proceedings Vol. 4669:
Sensors and Camera Systems for Scientific, Industrial, and Digital Photography Applications III
Nitin Sampat; John Canosa; Morley M. Blouke; John Canosa; Nitin Sampat, Editor(s)

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