Membrane potentials for linearly varying fixed charges

The membrane potentials for asymmetric membranes where fixed charges varied linearly with position were evaluated from the numerical solutions of Nernst-Planck flux and Donnan potential equations. The evaluated membrane potentials were compared with the results obtained from the conventional TMS theory where the fixed charge concentration in the membrane was assumed to be uniform. In the comparison, the number of fixed charges was kept constant by defining an average for the fixed charge concentration. The numerical results showed that the membrane potential increased in magnitude when the distributions of fixed charges at the membrane-solution interfaces were unequal. In addition, the deviation from TMS theory increased more as the charge difference at the interfaces increased. © TÜBİTAK.

Eser Adı
[dc.title]
Membrane potentials for linearly varying fixed charges
Yazar
[dc.contributor.author]
Genç, Ayten
Yayın Yılı
[dc.date.issued]
2009
Yayın Türü
[dc.type]
article
Özet
[dc.description.abstract]
The membrane potentials for asymmetric membranes where fixed charges varied linearly with position were evaluated from the numerical solutions of Nernst-Planck flux and Donnan potential equations. The evaluated membrane potentials were compared with the results obtained from the conventional TMS theory where the fixed charge concentration in the membrane was assumed to be uniform. In the comparison, the number of fixed charges was kept constant by defining an average for the fixed charge concentration. The numerical results showed that the membrane potential increased in magnitude when the distributions of fixed charges at the membrane-solution interfaces were unequal. In addition, the deviation from TMS theory increased more as the charge difference at the interfaces increased. © TÜBİTAK.
Kayıt Giriş Tarihi
[dc.date.accessioned]
2019-12-23
Açık Erişim Tarihi
[dc.date.available]
2019-12-23
Yayın Dili
[dc.language.iso]
eng
Konu Başlıkları
[dc.subject]
Charged membranes
Konu Başlıkları
[dc.subject]
Donnan potential
Konu Başlıkları
[dc.subject]
Fixed charge concentration
Konu Başlıkları
[dc.subject]
Membrane potential
Konu Başlıkları
[dc.subject]
Surface charges
Konu Başlıkları
[dc.subject]
TMS theory
Künye
[dc.identifier.citation]
Genç, A. (2009). Membrane potentials for linearly varying fixed charges. Turkish Journal of Engineering and Environmental Sciences, 33(1), 73-81.
Haklar
[dc.rights]
info:eu-repo/semantics/openAccess
ISSN
[dc.identifier.issn]
1300-0160
İlk Sayfa Sayısı
[dc.identifier.startpage]
73
Son Sayfa Sayısı
[dc.identifier.endpage]
81
Dergi Adı
[dc.relation.journal]
Turkish Journal of Engineering and Environmental Sciences
Dergi Sayısı
[dc.identifier.issue]
1
Dergi Cilt Bilgisi
[dc.identifier.volume]
33
Tek Biçim Adres
[dc.identifier.uri]
https://dx.doi.org/10.3906/muh-0903-5
Tek Biçim Adres
[dc.identifier.uri]
https://hdl.handle.net/20.500.12628/6601
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membrane charge charges increased potential theory results interfaces concentration potentials numerical evaluated average showed asymmetric magnitude distributions membrane-solution defining unequal addition deviation difference TÜBİTAK linearly Donnan Nernst-Planck equations solutions compared obtained conventional position varied constant
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