Thermodynamic Analysis of the Cation Binding to a Phosphatidylcholine Monolayer at a Polarised Interface between Two Immiscible Electrolyte Solutions.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F03%3A54030001" target="_blank" >RIV/61388955:_____/03:54030001 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Thermodynamic Analysis of the Cation Binding to a Phosphatidylcholine Monolayer at a Polarised Interface between Two Immiscible Electrolyte Solutions.

Popis výsledku v původním jazyce

Thermodynamic analysis of the polarised interface between two immiscible electrolyte solutions (ITIES) was outlined, which accounts for the adsorption of phosphatidylcholine (PC) both as a zwitterion and a cation formed by the aqueous cation associationwith the zwitterionic PC form, as well as for the aqueous cation transfer facilitated by PC leading to its depletion from the interface. Electrocapillary equation was derived clarifying the physical significance of the surface charge density; the differential capacity and the PC surface excess concentration. The potential dependence of the interfacial tension calculated using the Damaskins adsorption model of a compound adsorbed in two different forms was found to agree well with that measured for the polarised water |1,2-dichloroethane interface in the presence of DL-alpha-dipalmitoylphosphatidylcholine. Experimentally observed effect of the nature of the aqueous cation on the interfacial tension was ascribed to the difference.

Název v anglickém jazyce

Thermodynamic Analysis of the Cation Binding to a Phosphatidylcholine Monolayer at a Polarised Interface between Two Immiscible Electrolyte Solutions.

Popis výsledku anglicky

Thermodynamic analysis of the polarised interface between two immiscible electrolyte solutions (ITIES) was outlined, which accounts for the adsorption of phosphatidylcholine (PC) both as a zwitterion and a cation formed by the aqueous cation associationwith the zwitterionic PC form, as well as for the aqueous cation transfer facilitated by PC leading to its depletion from the interface. Electrocapillary equation was derived clarifying the physical significance of the surface charge density; the differential capacity and the PC surface excess concentration. The potential dependence of the interfacial tension calculated using the Damaskins adsorption model of a compound adsorbed in two different forms was found to agree well with that measured for the polarised water |1,2-dichloroethane interface in the presence of DL-alpha-dipalmitoylphosphatidylcholine. Experimentally observed effect of the nature of the aqueous cation on the interfacial tension was ascribed to the difference.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CG - Elektrochemie

OECD FORD obor

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Projekt

<a href="/cs/project/GA203%2F01%2F0946" target="_blank" >GA203/01/0946: Kvazielastický rozptyl laserového paprsku na monovrstvách fosfolipidů</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2003

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Electrochemistry Communications

ISSN

1388-2481

e-ISSN

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Svazek periodika

5

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

6

Strana od-do

98-103

Kód UT WoS článku

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EID výsledku v databázi Scopus

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