51. Electro-Optical Imaging Microscopy of Dye-Doped Artificial Lipidic Membranes
- Author
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Shoji Takeuchi, Toshihisa Osaki, Loïc Hugonin, Halina Mojzisova, Hiroaki Suzuki, Joseph Zyss, Bassam Hajj, Bruno Le Pioufle, Dominique Chauvat, Sophie De Reguardati, Laboratoire de Photonique Quantique et Moléculaire (LPQM), École normale supérieure - Cachan (ENS Cachan)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), Systèmes et Applications des Technologies de l'Information et de l'Energie (SATIE), École normale supérieure - Cachan (ENS Cachan)-Université Paris-Sud - Paris 11 (UP11)-Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux (IFSTTAR)-École normale supérieure - Rennes (ENS Rennes)-Université de Cergy Pontoise (UCP), Université Paris-Seine-Université Paris-Seine-Conservatoire National des Arts et Métiers [CNAM] (CNAM)-Centre National de la Recherche Scientifique (CNRS), Bio-MIcroSystèmes et BioSensors (SATIE-BIOMIS), Systèmes d'Information et d'Analyse Multi-Echelles (SIAME), Université Paris-Seine-Université Paris-Seine-Conservatoire National des Arts et Métiers [CNAM] (CNAM)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Cachan (ENS Cachan)-Université Paris-Sud - Paris 11 (UP11)-Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux (IFSTTAR)-École normale supérieure - Rennes (ENS Rennes)-Université de Cergy Pontoise (UCP), Université Paris-Seine-Université Paris-Seine-Conservatoire National des Arts et Métiers [CNAM] (CNAM)-Centre National de la Recherche Scientifique (CNRS)-Systèmes et Applications des Technologies de l'Information et de l'Energie (SATIE), Laboratory for Integrated Micro Mechatronics Systems (LIMMS), Centre National de la Recherche Scientifique (CNRS)-The University of Tokyo (UTokyo), Institute of Industrial Sciences (IIS), and The University of Tokyo (UTokyo)
- Subjects
genetic structures ,Optical Phenomena ,Dephasing ,Lipid Bilayers ,Analytical chemistry ,Biophysics ,Pyridinium Compounds ,02 engineering and technology ,01 natural sciences ,Signal ,Membrane Potentials ,010309 optics ,Cell membrane ,0103 physical sciences ,Microscopy ,medicine ,[SPI.NANO]Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics ,Lipid bilayer ,Coloring Agents ,Membrane potential ,business.industry ,Chemistry ,Cell Membrane ,Membrane ,Membranes, Artificial ,Microfluidic Analytical Techniques ,021001 nanoscience & nanotechnology ,eye diseases ,Molecular Imaging ,Optical phenomena ,medicine.anatomical_structure ,Phosphatidylcholines ,Potentiometry ,Optoelectronics ,lipids (amino acids, peptides, and proteins) ,sense organs ,0210 nano-technology ,business - Abstract
Artificial lipidic bilayers are widely used as a model for the lipid matrix in biological cell membranes. We use the Pockels electro-optical effect to investigate the properties of an artificial lipidic membrane doped with nonlinear molecules in the outer layer. We report here what is believed to be the first electro-optical Pockels signal and image from such a membrane. The electro-optical dephasing distribution within the membrane is imaged and the signal is shown to be linear as a function of the applied voltage. A theoretical analysis taking into account the statistical orientation distribution of the inserted dye molecules allows us to estimate the doped membrane nonlinearity. Ongoing extensions of this work to living cell membranes are discussed.
- Published
- 2009
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