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ISSN 2522-9028 (Print)
ISSN 2522-9036 (Online)
DOI: https://doi.org/10.15407/fz

Fiziologichnyi Zhurnal

is a scientific journal issued by the

Bogomoletz Institute of Physiology
National Academy of Sciences of Ukraine

Editor-in-chief: V.F. Sagach

The journal was founded in 1955 as
1955 – 1977 "Fiziolohichnyi zhurnal" (ISSN 0015 – 3311)
1978 – 1993 "Fiziologicheskii zhurnal" (ISSN 0201 – 8489)
1994 – 2016 "Fiziolohichnyi zhurnal" (ISSN 0201 – 8489)
2017 – "Fiziolohichnyi zhurnal" (ISSN 2522-9028)

Fiziol. Zh. 2007; 53(1): 48-54


The weak acids as protons carriersthrough bilayer lipid membranes

K. Kylyvnyk, G.Ostrovska, L. Khmars’ka,T.Rybalchenko, O. Ksenzek, V.Rybalchenko.

    Ukrainian State Chemical Technological University,Dnipropetrovsk, UkraineNational University named after Taras Shevchenko, Kyiv,Ukraine


Abstract

The ability of the weak inorganic acids (H2S, HCN) and lower carboxylic acids to interact with bilayer lipid membranes (BLMs), change their conductivity, act as the protonophores were investigated. The mechanism of the BLM conductivity change was studied. The factors affecting the acids interaction with model lipid membranes were determined. Maximum conductivity change observes at pH equal dissociation constant of weak acids and depends on the distribution coefficient “octanol(membrane)-water”

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