Lipid monolayers on Hg as a valid experimental model for lipid membranes under electrical fields

Monolayers spread on Hg drops are shown as a suitable experimental set up to study the influence of external electric fields on the structure of lipid membranes. The electrical response exhibits a sharp transition at 24°C, the transition temperature of DMPC. In addition, voltammetric response of mon...

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Detalles Bibliográficos
Autor principal: Gordillo, Gabriel Jorge
Publicado: 2006
Materias:
Cyclic voltammetry
Electrical fields
Hanging drop mercury electrode
Lipid membranes
Lipid monolayers
dimirystoylphosphatidylethanolamine
dimyristoylphosphatidylcholine
ethanolamine derivative
mercury
unclassified drug
adsorption
article
bilayer membrane
cyclic potentiometry
dipole
electric activity
electric field
experimental model
lipid membrane
lipid monolayer
membrane structure
priority journal
transition temperature
Chemistry, Physical
Electrochemistry
Electromagnetic Fields
Lipids
Membranes, Artificial
Mercury
Temperature
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00093084_v139_n2_p150_Almaleck
http://hdl.handle.net/20.500.12110/paper_00093084_v139_n2_p150_Almaleck
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_00093084_v139_n2_p150_Almaleck
record_format dspace
spelling paper:paper_00093084_v139_n2_p150_Almaleck2023-06-08T14:33:59Z Lipid monolayers on Hg as a valid experimental model for lipid membranes under electrical fields Gordillo, Gabriel Jorge Cyclic voltammetry Electrical fields Hanging drop mercury electrode Lipid membranes Lipid monolayers dimirystoylphosphatidylethanolamine dimyristoylphosphatidylcholine ethanolamine derivative mercury unclassified drug adsorption article bilayer membrane cyclic potentiometry dipole electric activity electric field experimental model lipid membrane lipid monolayer membrane structure priority journal transition temperature Chemistry, Physical Electrochemistry Electromagnetic Fields Lipids Membranes, Artificial Mercury Temperature Monolayers spread on Hg drops are shown as a suitable experimental set up to study the influence of external electric fields on the structure of lipid membranes. The electrical response exhibits a sharp transition at 24°C, the transition temperature of DMPC. In addition, voltammetric response of monolayers of mixtures of DMPC/DMPE adsorbed on mercury, shows a similar trend to that found for dipole potential of monolayers of the same composition spread on an air-solution interface. It is concluded that a lipid monolayer adsorbed in a mercury-solution interface, has comparable properties as those found in other experimental models of lipid membranes in similar conditions. In addition, they constitute an ideal set up to study the effect of electrical fields on the dynamic conformation of lipids as a function of packing change produced by the condensation in the gel state or by the interaction of polar head groups. © 2005 Elsevier Ireland Ltd. All rights reserved. Fil:Gordillo, G.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2006 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00093084_v139_n2_p150_Almaleck http://hdl.handle.net/20.500.12110/paper_00093084_v139_n2_p150_Almaleck
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Cyclic voltammetry
Electrical fields
Hanging drop mercury electrode
Lipid membranes
Lipid monolayers
dimirystoylphosphatidylethanolamine
dimyristoylphosphatidylcholine
ethanolamine derivative
mercury
unclassified drug
adsorption
article
bilayer membrane
cyclic potentiometry
dipole
electric activity
electric field
experimental model
lipid membrane
lipid monolayer
membrane structure
priority journal
transition temperature
Chemistry, Physical
Electrochemistry
Electromagnetic Fields
Lipids
Membranes, Artificial
Mercury
Temperature
spellingShingle Cyclic voltammetry
Electrical fields
Hanging drop mercury electrode
Lipid membranes
Lipid monolayers
dimirystoylphosphatidylethanolamine
dimyristoylphosphatidylcholine
ethanolamine derivative
mercury
unclassified drug
adsorption
article
bilayer membrane
cyclic potentiometry
dipole
electric activity
electric field
experimental model
lipid membrane
lipid monolayer
membrane structure
priority journal
transition temperature
Chemistry, Physical
Electrochemistry
Electromagnetic Fields
Lipids
Membranes, Artificial
Mercury
Temperature
Gordillo, Gabriel Jorge
Lipid monolayers on Hg as a valid experimental model for lipid membranes under electrical fields
topic_facet Cyclic voltammetry
Electrical fields
Hanging drop mercury electrode
Lipid membranes
Lipid monolayers
dimirystoylphosphatidylethanolamine
dimyristoylphosphatidylcholine
ethanolamine derivative
mercury
unclassified drug
adsorption
article
bilayer membrane
cyclic potentiometry
dipole
electric activity
electric field
experimental model
lipid membrane
lipid monolayer
membrane structure
priority journal
transition temperature
Chemistry, Physical
Electrochemistry
Electromagnetic Fields
Lipids
Membranes, Artificial
Mercury
Temperature
description Monolayers spread on Hg drops are shown as a suitable experimental set up to study the influence of external electric fields on the structure of lipid membranes. The electrical response exhibits a sharp transition at 24°C, the transition temperature of DMPC. In addition, voltammetric response of monolayers of mixtures of DMPC/DMPE adsorbed on mercury, shows a similar trend to that found for dipole potential of monolayers of the same composition spread on an air-solution interface. It is concluded that a lipid monolayer adsorbed in a mercury-solution interface, has comparable properties as those found in other experimental models of lipid membranes in similar conditions. In addition, they constitute an ideal set up to study the effect of electrical fields on the dynamic conformation of lipids as a function of packing change produced by the condensation in the gel state or by the interaction of polar head groups. © 2005 Elsevier Ireland Ltd. All rights reserved.
author Gordillo, Gabriel Jorge
author_facet Gordillo, Gabriel Jorge
author_sort Gordillo, Gabriel Jorge
title Lipid monolayers on Hg as a valid experimental model for lipid membranes under electrical fields
title_short Lipid monolayers on Hg as a valid experimental model for lipid membranes under electrical fields
title_full Lipid monolayers on Hg as a valid experimental model for lipid membranes under electrical fields
title_fullStr Lipid monolayers on Hg as a valid experimental model for lipid membranes under electrical fields
title_full_unstemmed Lipid monolayers on Hg as a valid experimental model for lipid membranes under electrical fields
title_sort lipid monolayers on hg as a valid experimental model for lipid membranes under electrical fields
publishDate 2006
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00093084_v139_n2_p150_Almaleck
http://hdl.handle.net/20.500.12110/paper_00093084_v139_n2_p150_Almaleck
work_keys_str_mv AT gordillogabrieljorge lipidmonolayersonhgasavalidexperimentalmodelforlipidmembranesunderelectricalfields
_version_ 1768545767046250496

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