Elucidation and simulation of transporting processes of heavy metals across the model phospholipid membranes

0386062 - ÚFCH JH 2013 SG eng C - Conference Paper (international conference)
Navrátil, Tomáš - Parisová, Martina - Šestáková, Ivana - Barek, J. - Jaklová Dytrtová, Jana - Mareček, Vladimír
Elucidation and simulation of transporting processes of heavy metals across the model phospholipid membranes.
International Conference Proceedings of PSRC. Singapore: Planetary Scientific Research Centre, 2012, s. 38-42.
[International Conference on Chemical, Bio-Chemical and Environmental Sciences (ICBEE'2012). Singapore (SG), 14.12.2012-15.12.2012]
R&D Projects: GA ČR(CZ) GAP208/12/1645; GA AV ČR IAA400400806; GA ČR GBP206/12/G151
Institutional support: RVO:61388955 ; RVO:61388963
Keywords : cell membranes * electrochemistry * heavy metals
Subject RIV: CG - Electrochemistry

Transport of heavy metal cations from model solutions across the model phospholipid membranes, which simulated the real cell membrane, has been investigated in our experimentas. The transporting processes were affected by the presence/absence of ionophores (calcimysin, nisin, etc) and by the presence/absence of selected low molecular weight organic acids (LMWOAs) (oxalic, malic or citric acid) at different pH values, which are present in the rhizosphere. The model supported phospholipid membranes were prepared in pores of the polycarbonate membrane. Electrochemical impendance spectroscopy has been used to monitor the formation and stability of phospholipid membrane, whereas voltammetric methods were used for detection of species, which are transferred across the membrane. The structure of transported complexes has been investigated using electrospray ionization mass spectrometry.
Permanent Link: http://hdl.handle.net/11104/0215348