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ELEKTRIČNE LASTNOSTI HIDRIRANIH RAVNINSKIH LIPIDNIH DVOSLOJEV
VELIKONJA, ALJAŽ (Author), Maček Lebar, Alenka (Mentor) More about this mentor... This link opens in a new window, Iglič, Aleš (Co-mentor)

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Abstract
Osnovni gradnik membrane biološke celice je dvojna plast lipidnih molekul, pretežno sestavljena iz glicerofosfolipidov, proteinov ter drugih molekul. Čeprav je celična membrana nehomogena struktura, lahko nekatere njene osnovne fizikalne lastnosti dovolj dobro opišemo s študijem hidriranega ravninskega lipidnega dvosloja, sestavljenega izključno iz lipidnih molekul. Nekatere od teh lastnosti (npr. dolžina in nasičenost maščobnih verig) so odvisne tudi od temperature, zato se s temperaturo spreminjajo tudi lastnosti hidriranega ravninskega lipidnega dvosloja. Zaradi različnih faznih prehodov uporabljenih lipidnih dvoslojev nas je zanimalo, ali imajo uporabljene vrste lipidnih dvoslojev zaradi tega tudi drugačne električne lastnosti, ki so odvisne od temperature. Poleg eksperimentalnega študija električnih lastnosti hidriranih ravninskih lipidnih dvoslojev v odvisnosti od temperature smo proučevali tudi teoretične modele električne dvojne plasti v dotiku z raztopino soli. Pri eksperiment

Language:Slovenian
Keywords:hidrirani ravninski lipidni dvosloj, temperatura, električni parametri, Langevin-Poisson-Boltzmannov model, Langevin-Bikermanov model
Work type:Doctoral dissertation (mb31)
Organization:FE - Faculty of Electrical Engineering
Year:2014
Views:1309
Downloads:381
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Secondary language

Language:English
Title:ELECTRICAL PROPERTIES OF HYDRATED PLANAR LIPID BILAYERS
Abstract:
The hydrated planar lipid bilayer is a basic building block of biologic cell membranes. Although the cell membrane is a highly heterogeneous structure, composed of lipids, proteins, carbohydrates and other components, a large number of physical properties of biological cell membrane which are important in physiological processes can be studied also in pure planar lipid bilayer systems. Some of these properties (lipid tail length and saturation) are dependent also on the temperature, therefore temperature dependent properties can be studied. Due to different phase transition of used lipid bilayers, the different electrical properties of hydrated planar lipid bilayers can be expected. Besides experimental work, the hydrated planar lipid bilayer was also studied theoretically as electric double layer in contact with electrolyte. In experimental work the electrical capacitance as parameter of the hydrated planar lipid bilayer thickness and breakdown voltage as parameter of the sta

Keywords:hydrated planar lipid bilayer, temperature, electrical parameters, Langevin-Poisson-Boltzmann model, Langevin-Bikerman model

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