Physiochemical Modeling of Vesicle Dynamics upon Osmotic Upshift.

Chemical Phenomena Fluoresceins / chemistry Lipid Bilayers / chemistry Models, Chemical Osmosis Spectrometry, Fluorescence

Journal

Biophysical journal
ISSN: 1542-0086
Titre abrégé: Biophys J
Pays: United States
ID NLM: 0370626

Informations de publication

Date de publication:
21 01 2020
Historique:
received: 10 11 2019
accepted: 22 11 2019
pubmed: 18 1 2020
medline: 13 4 2021
entrez: 18 1 2020
Statut: ppublish

Résumé

We modeled the relaxation dynamics of (lipid) vesicles upon osmotic upshift, taking into account volume variation, chemical reaction kinetics, and passive transport across the membrane. We focused on the relaxation kinetics upon addition of impermeable osmolytes such as KCl and membrane-permeable solutes such as weak acids. We studied the effect of the most relevant physical parameters on the dynamic behavior of the system, as well as on the relaxation rates. We observe that 1) the dynamic complexity of the relaxation kinetics depends on the number of permeable species; 2) the permeability coefficients (P) and the weak acid strength (pK

Identifiants

DOI: 10.1016/j.bpj.2019.11.3383 PMID: 31948692 PMC: PMC6976812
pubmed: 31948692
pii: S0006-3495(19)34340-1
doi: 10.1016/j.bpj.2019.11.3383
pmc: PMC6976812
pii:
doi:

Substances chimiques

Fluoresceins 0
Lipid Bilayers 0
fluorexon V0YM2B16TS

Types de publication

Journal Article Research Support, Non-U.S. Gov't

Langues

eng

Sous-ensembles de citation

IM

Pagination

435-447

Informations de copyright

Copyright © 2019 Biophysical Society. Published by Elsevier Inc. All rights reserved.

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Auteurs

Matteo Gabba (M)

Department of Biochemistry, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, Groningen, the Netherlands.

Bert Poolman (B)

Department of Biochemistry, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, Groningen, the Netherlands. Electronic address: b.poolman@rug.nl.

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Classifications MeSH

questionsmedicales.fr › Phénomènes chimiques › Physiochemical Modeling of Vesicle Dynamics...
questionsmedicales.fr › Composés polycycliques › Spiranes › Fluorescéines › Physiochemical Modeling of Vesicle Dynamics...
questionsmedicales.fr › Technologie, industrie et agriculture › Produits manufacturés › Matériaux biomimétiques › Membrane artificielle › Double couche lipidique › Physiochemical Modeling of Vesicle Dynamics...
questionsmedicales.fr › Techniques d'investigation › Modèles théoriques › Modèles chimiques › Physiochemical Modeling of Vesicle Dynamics...
questionsmedicales.fr › Phénomènes chimiques › Perméabilité › Osmose › Physiochemical Modeling of Vesicle Dynamics...
questionsmedicales.fr › Techniques d'investigation › Techniques de chimie analytique › Analyse spectrale › Spectrométrie de fluorescence › Physiochemical Modeling of Vesicle Dynamics...