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Transactions: WSEAS TRANSACTIONS ON ENVIRONMENT AND DEVELOPMENT
Transactions ID Number: 89-307
Full Name: Tomas Navratil
Position: Doctor (Researcher)
Age: ON
Sex: Male
Address: J. Heyrovsky Institute of Physical Chemistry of AS CR, v.v.i., Dolejskova 3, 182 23 Prague 8
Country: CZECH REPUBLIC
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E-mail address: tomas.navratil@jh-inst.cas.cz
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Title of the Paper: Study of Charged Particles Transport across Model and Real Phospholipid Bilayers
Authors as they appear in the Paper: Tomáš Navratil, Ivana Sestakova, Jana Jaklova Dytrtova, Michal Jakl, Vladimir Marecek
Email addresses of all the authors: tomas.navratil@jh-inst.cas.cz; ivana.sestakova@jh-inst.cas.cz;dytrtova@uochb.cas.cz; jakl@af.czu.cz
Number of paper pages: 12
Abstract: Air, waters and soils has being in increased levels contaminated with various metals, inorganic or organic compounds (partly products of human activity). To secure the normal processes in the living (plant or animal) cells, it is necessary to realize transport of various inorganic and organic compounds (nutrients, etc.), across the cell membrane into or out of the cells or various sub-cellular structures. Not only the useful and usual metabolic compounds are transported into the cells, across the membranes; however, the above mentioned undesired ions, compounds and particles, which are connected with pollution of human environment, are participated in the transporting processes. They are based on many principles, which we intend to study using electrochemical methods (electrochemical impedance spectroscopy, voltammetry, conductometry, patch-clamp techniques etc.). In this contribution, there are described the results of experiments realized on model of supported me!
mbranes and some ways of preparation of protoplasts, which would be suitable for patch clamp studies of the charged particles transport. The anodic stripping voltammetry, cyclic voltammetry and related methods were successfully applied for determination and characterization of heavy metal complexes with low-molecular-weight organic acids (LMWOAs) in soil solutions sampled from rhizosphere and bulk soil. All these experiments help us to explain the transporting processes of heavy metals across the real membranes of protoplasts.
Keywords: Environment; Heavy metals; Charged particles; Phospholipid bilayers; Cell membrane; Electrochemistry; Voltammetry; Protoplasts; Ion channels; Ionophores
EXTENSION of the file: .doc
Special (Invited) Session: Study of Charged Particles Transport across Model and Real Phospholipid Bilayers
Organizer of the Session: 697-429
How Did you learn about congress: Mgr. Karolina Pecková, Ph.D., kpeckova@natur.cuni.cz; Mgr. Renata Šelešovská, Ph.D., renata.selesovska@upce.cz; Mgr. Jana Skopalová, jana.skopalova@post.cz; Prof. Karel Stulik, D.Sc., stulik@natur.cuni.cz
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