title: Interaction of energized bacteria cells with particles of colloidal gold: peculiarities and kinetic model of the process.
abstract: It is found that the cells of Bacillus cereus B-4368 at energized state can concentrate the colloidal gold particles on their surface. It is shown that the process depends on metabolic reactions proceeding on the plasma membrane. The inhibitory analysis permits to suppose that the metal concentration is due to the functioning of ATP-dependent generator of the transmembrane potential, apparently, of proton ATPase. Kinetic characteristics of the process show the presence of an intermediate state in the formation of biomineral aggregates. A kinetic model of the studied process is suggested which describes the experimental data well.
authors.affiliation: Department of Natural Disperse Systems of Physico-chemical Institute, Ukrainian Academy of Sciences, Kiev.
authors.forename: Z R
authors.initials: ZR
authors.lastname: Ulberg
authors.forename: V I
authors.initials: VI
authors.lastname: Karamushka
authors.forename: A K
authors.initials: AK
authors.lastname: Vidybida
authors.forename: A A
authors.initials: AA
authors.lastname: Sericov
authors.forename: A S
authors.initials: AS
authors.lastname: Dukhin
authors.forename: T G
authors.initials: TG
authors.lastname: Gruzina
authors.forename: V I
authors.initials: VI
authors.lastname: Pechenaya
mesh_terms: D000251:Adenosine Triphosphatases / Q000378:metabolism; D001409:Bacillus cereus / Q000378:metabolism* / Q000502:physiology; D002462:Cell Membrane / Q000201:enzymology / Q000378:metabolism / Q000502:physiology; D003102:Colloids; D004734:Energy Metabolism; D006046:Gold / Q000378:metabolism*; D007700:Kinetics; D008564:Membrane Potentials
chemical_list: D003102:Colloids; D006046:Gold; D000251:Adenosine Triphosphatases