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Ries RS, Choi H, Blunck R, Bezanilla F, Heath JR. Black Lipid Membranes: Visualizing the Structure, Dynamics, and Substrate Dependence of Membranes. J Phys Chem B 2004. [DOI: 10.1021/jp048098h] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ryan S. Ries
- Department of Chemistry, Division of Chemistry and Chemical Engineering, MC 127-72, The California Institute of Technology, Pasadena, California 91125, and The Departments of Physiology and Anesthesiology, David Geffen School of Medicine at the University of California, Los Angeles, California 90095
| | - Hyeon Choi
- Department of Chemistry, Division of Chemistry and Chemical Engineering, MC 127-72, The California Institute of Technology, Pasadena, California 91125, and The Departments of Physiology and Anesthesiology, David Geffen School of Medicine at the University of California, Los Angeles, California 90095
| | - Rikard Blunck
- Department of Chemistry, Division of Chemistry and Chemical Engineering, MC 127-72, The California Institute of Technology, Pasadena, California 91125, and The Departments of Physiology and Anesthesiology, David Geffen School of Medicine at the University of California, Los Angeles, California 90095
| | - Francisco Bezanilla
- Department of Chemistry, Division of Chemistry and Chemical Engineering, MC 127-72, The California Institute of Technology, Pasadena, California 91125, and The Departments of Physiology and Anesthesiology, David Geffen School of Medicine at the University of California, Los Angeles, California 90095
| | - James R. Heath
- Department of Chemistry, Division of Chemistry and Chemical Engineering, MC 127-72, The California Institute of Technology, Pasadena, California 91125, and The Departments of Physiology and Anesthesiology, David Geffen School of Medicine at the University of California, Los Angeles, California 90095
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Bechem M, Beutner S, Burkhardt N, Fuchs C, Kryschi C, Paffhausen W, Reiffers B, Schade A, Schlue WR, Schmid D, Schneider L, Schulte P, Wimmer T, Witzak D, Martin HD. Novel hyperpolarizable and fluorescent dyes in lipid membranes: studying membrane potentials using nonlinear optical and fluorescence. Electrochim Acta 2003. [DOI: 10.1016/s0013-4686(03)00409-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Moreaux L, Pons T, Dambrin V, Blanchard-Desce M, Mertz J. Electro-optic response of second-harmonic generation membrane potential sensors. OPTICS LETTERS 2003; 28:625-627. [PMID: 12703921 DOI: 10.1364/ol.28.000625] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
We quantify and ascertain the nature of the second-harmonic generation (SHG) response of amphiphilic push-pull chromophores to a transmembrane electric field. Our technique is based on the application of an alternating field across labeled giant unilamelar vesicles. For chromophore responses that are purely electro-optic, our technique provides an estimate of photoinduced charge shifts based on the observed dispersion of the field response, in accord with a two-level perturbation theory. These results are applicable to the optimization of membrane potential sensors for SHG microscopy.
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Affiliation(s)
- L Moreaux
- Neurophysiologie et Nouvelles Microscopies, Ecole Superieure de Physique et de Chimie Industrielles, Institut National de la Santé et de la Recherche Scientifique, EPI 00-02, Paris, France
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