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Titolo:
PROBING MEMBRANE-POTENTIAL WITH NONLINEAR OPTICS
Autore:
BOUEVITCH O; LEWIS A; PINEVSKY I; WUSKELL JP; LOEW LM;
Indirizzi:
HEBREW UNIV JERUSALEM,DIV APPL PHYS JERUSALEM ISRAEL HEBREW UNIV JERUSALEM,DIV APPL PHYS JERUSALEM ISRAEL UNIV CONNECTICUT,CTR HLTH,DEPT PHYSIOL FARMINGTON CT 06030 HADASSAH UNIV HOSP,CTR LASER IL-91120 JERUSALEM ISRAEL
Titolo Testata:
Biophysical journal
fascicolo: 2, volume: 65, anno: 1993,
pagine: 672 - 679
SICI:
0006-3495(1993)65:2<672:PMWNO>2.0.ZU;2-Z
Fonte:
ISI
Lingua:
ENG
Soggetto:
CHARGE-SHIFT PROBES; 2ND-HARMONIC GENERATION; MECHANISM; MICROSCOPY; DYES;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
22
Recensione:
Indirizzi per estratti:
Citazione:
O. Bouevitch et al., "PROBING MEMBRANE-POTENTIAL WITH NONLINEAR OPTICS", Biophysical journal, 65(2), 1993, pp. 672-679

Abstract

The nonlinear optical phenomenon of second harmonic generation is shown to have intrinsic sensitivity to the voltage across a biological membrane. Our results demonstrate that this second order nonlinear optical process can be used to monitor membrane voltage with excellent signal to noise and other crucial advantages. These advantages suggest extensive use of this novel approach as an important new tool in elucidating membrane potential changes in biological systems. For this first demonstration of the effect we use a chiral styryl dye which exhibits gigantic second harmonic signals. Possible mechanisms of the voltage dependence of the second harmonic signal are discussed.

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Documento generato il 26/09/20 alle ore 06:37:02