Interaction of energized bacteria cells with particles of colloidal gold: peculiarities and kinetic model of the process

Ulberg, Z. R.; Карамушка, Віктор; Vidybida, A. K.; Sericov, A.A.; Dukhin, A. S.; Грузина, Т. Г.; Pechenaya, V. I.

doi:10.1016/0167-4889(92)90031-6

Cited by 18 publications

(24 citation statements)

References 12 publications

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“…In further studies, the accumulation of gold by Bacillus sp. was shown to be directly dependent on the metabolic activity of the cells, and particularly the hydrolysis of ATP (adenosine triphosphate) by the enzyme ATPase in the plasma membrane (Karamushka et al, 1990a, b;Ulberg et al, 1992). Gold accumulation in an exopolysaccharide capsule was observed in Hyphomonas adhaerens; cultures that were able to form the capsule-precipitated gold from gold(III) chloride solutions, whereas a mutant without capsule was not able to do so (Quintero et al, 2001).…”

Section: Bioaccumulation Of Gold By Microorganismsmentioning

confidence: 99%

“…The extracellular accumulation of gold(III) chloride and colloidal gold in Bacillus sp. was further investigated by Ulberg et al (1992) and Karamushka et al (1987a, b), who found that bioaccumulation of gold by Bacillus sp. depended on the chemical fine structure of the cell envelope, and involved functional groups of proteins and carbohydrates bound in the plasma membrane.…”

Section: Bioaccumulation Of Gold By Microorganismsmentioning

confidence: 99%

“…Laboratory studies have been conducted to elucidate the interactions of gold with microorganisms using gold(III) chloride- (Beveridge and Murray, 1976;Darnall et al, 1986;Greene et al, 1986;Watkins et al, 1987;Gee and Dudeney, 1988;Karamushka et al, 1990a, b;Dyer et al, 1994;Beveridge, 1994, 1996;Canizal et al, 2001;Kashefi et al, 2001;Karthikeyan and Beveridge, 2002;Nair and Pradeep, 2002;Ahmad et al, 2003;Nakajima, 2003;Tsuruta, 2004;Keim and Farina, 2005;Lengke et al, 2006aLengke et al, , b, c, 2007, gold(I) thiosulphate- (Lengke and Southam, 2005, 2006, 2007Lengke et al, 2006a), gold L-asparagine- (Southam et al, 2000), aurothiomalate-complexes (Higham et al, 1986) and colloidal gold-containing solutions (Karamushka et al, 1987b(Karamushka et al, , 1990bUlberg et al, 1992). In study with 30 different microorganisms (eight bacteria, nine actinomycetes, eight fungi and five yeasts, Nakajima (2003) found that the bacteria were more efficient in removing gold(I/III) complexes from solution than other groups of microorganisms.…”

Section: Bioaccumulation Of Gold By Microorganismsmentioning

confidence: 99%

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The geomicrobiology of gold

et al. 2007

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Microorganisms capable of actively solubilizing and precipitating gold appear to play a larger role in the biogeochemical cycling of gold than previously believed. Recent research suggests that bacteria and archaea are involved in every step of the biogeochemical cycle of gold, from the formation of primary mineralization in hydrothermal and deep subsurface systems to its solubilization, dispersion and re-concentration as secondary gold under surface conditions. Enzymatically catalysed precipitation of gold has been observed in thermophilic and hyperthermophilic bacteria and archaea (for example, Thermotoga maritime, Pyrobaculum islandicum), and their activity led to the formation of gold-and silver-bearing sinters in New Zealand's hot spring systems. Sulphatereducing bacteria (SRB), for example, Desulfovibrio sp., may be involved in the formation of goldbearing sulphide minerals in deep subsurface environments; over geological timescales this may contribute to the formation of economic deposits. Iron-and sulphur-oxidizing bacteria (for example, Acidothiobacillus ferrooxidans, A. thiooxidans) are known to breakdown gold-hosting sulphide minerals in zones of primary mineralization, and release associated gold in the process. These and other bacteria (for example, actinobacteria) produce thiosulphate, which is known to oxidize gold and form stable, transportable complexes. Other microbial processes, for example, excretion of amino acids and cyanide, may control gold solubilization in auriferous top-and rhizosphere soils. A number of bacteria and archaea are capable of actively catalysing the precipitation of toxic gold(I/ III) complexes. Reductive precipitation of these complexes may improve survival rates of bacterial populations that are capable of (1) detoxifying the immediate cell environment by detecting, excreting and reducing gold complexes, possibly using P-type ATPase efflux pumps as well as membrane vesicles (for example, Salmonella enterica, Cupriavidus (Ralstonia) metallidurans, Plectonema boryanum); (2) gaining metabolic energy by utilizing gold-complexing ligands (for example, thiosulphate by A. ferrooxidans) or (3) using gold as metal centre in enzymes (Micrococcus luteus). C. metallidurans containing biofilms were detected on gold grains from two Australian sites, indicating that gold bioaccumulation may lead to gold biomineralization by forming secondary 'bacterioform' gold. Formation of secondary octahedral gold crystals from gold(III) chloride solution, was promoted by a cyanobacterium (P. boryanum) via an amorphous gold(I) sulphide intermediate. 'Bacterioform' gold and secondary gold crystals are common in quartz pebble conglomerates (QPC), where they are often associated with bituminous organic matter possibly derived from cyanobacteria. This may suggest that cyanobacteria have played a role in the formation of the Witwatersrand QPC, the world's largest gold deposit.

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Section: Bioaccumulation Of Gold By Microorganismsmentioning

confidence: 99%

Section: Bioaccumulation Of Gold By Microorganismsmentioning

confidence: 99%

Section: Bioaccumulation Of Gold By Microorganismsmentioning

confidence: 99%

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The geomicrobiology of gold

et al. 2007

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“…In other words, live biological cells generate additional electric charge separation over the exterior DL. We suggested calling this effect a "biospecific mechanism of DL formation" [27][28][29][30].…”

Section: Methodsmentioning

confidence: 99%

“…The Ukrainian investigators had discovered some peculiar features of the interactions of microbial cells with gold nanoparticles that dramatically distinguished them from the typical interactions between nano-and micro-scale equilibrium objects [27][28][29][30][31][32][33][34][35][36]. Some bacteria collected large numbers of gold nanoparticles on their surfaces (Fig.…”

Section: Introductionmentioning

confidence: 99%