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Wavelength Dependence of Optical Action Potentials in the Isolated Rat Atrium

Jpn J Physiol Vol.55, No.6 pp.389-393
Tetsuro Sakai
Abstract: The wavelength dependence of optical action potentials was studied using voltage-sensitive merocyanine-rhodanine, merocyanine-oxazolone, and oxonol dyes in the isolated rat atrium preparation. Most of the dyes had action spectra that were similar to those reported in other pre-parations. Species-to-species difference was observed with a merocyanine-oxazolone dye.

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Department of Physiology, University of the Ryukyus School of Medicine, 207 Uehara, Nishihara, Okinawa, 903-0215 Japan. tsakai@med.u-ryukyu.ac.jp