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• W4376272384 endingPage "105307" @default.
• W4376272384 startingPage "105307" @default.
• W4376272384 abstract "Cholesterol in a bio-membrane plays a significant role in many cellular event and is known to regulate the functional activity of protein and ion channel. In this study we report a significant effect of cholesterol on the ion-membrane interaction. We prepare large unilamellar vesicles, composed of zwitterionic lipid DOPC and anionic lipid DOPG with different cholesterol concentration. Electrostatics of anionic membranes containing cholesterol in the presence of NaCl has systematically been explored using dynamic light scattering and zeta potential. Negative zeta potential of the membrane decreases its negative value with increasing ion concentration for all cholesterol concentrations. However, zeta potential itself decreases with increasing cholesterol content even in the absence of monovalent ions. Electrostatic behaviour of the membrane is determined from well-known Gouy Chapmann model. Negative surface charge density of the membrane decreases with increasing cholesterol content. Binding constant, estimated from the electrostatic double layer theory, is found to increase significantly in the presence of cholesterol. Comparison of electrostatic parameters of the membrane in the presence and absence of cholesterol suggests that cholesterol significantly alter the electrostatic behaviour of the membrane." @default.
• W4376272384 created "2023-05-13" @default.
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• W4376272384 date "2023-08-01" @default.
• W4376272384 modified "2023-09-30" @default.
• W4376272384 title "Effect of cholesterol on the ion-membrane interaction: Zeta potential and dynamic light scattering study" @default.
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• W4376272384 doi "https://doi.org/10.1016/j.chemphyslip.2023.105307" @default.
• W4376272384 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/37182823" @default.
• W4376272384 hasPublicationYear "2023" @default.
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