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Erythrosin and pH gradient induced photo-voltages in bilayer membranes (1982)

Varnadore, W. E. ; Arrieta, R. T. ; Duchek, J. R. ; [et al.]

Springer

The journal of membrane biology 65 (1982), S. 147-153

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ISSN: 1432-1424

Keywords: bilayer membranes ; dye photo-deprotonation ; erythrosin ; fluorescein ; membrane photo-voltages ; xanthene dyes

Source: Springer Online Journal Archives 1860-2000

Topics: Biology , Chemistry and Pharmacology

Notes: Summary Erythrosin and light flashes induce voltage transients across bilayer membranes in the presence of transmembrane pH gradients. Fast voltage transients, which rise in 〈50 nsec and fall in ∼500 nsec, are attributed to photo-deprotonation of dye sorbed in the glycerol region of phospholipid membranes. Six other halogenated xanthene dyes induce similar effects, which apparently resulted from triplet states of monoanionic dye. No photo-effects were observed with fluorescein.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF01870478

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