Journal ArticleDOI
Microbial resistance to metals in the environment.
TLDR
Six metal resistance mechanisms exist: exclusion by permeability barrier, intra- and extra-cellular sequestration, active transport efflux pumps, enzymatic detoxification, and reduction in the sensitivity of cellular targets to metal ions.About:
This article is published in Ecotoxicology and Environmental Safety.The article was published on 2000-03-01. It has received 1247 citations till now.read more
Citations
More filters
Journal ArticleDOI
Biological synthesis of metal nanoparticles by microbes.
TL;DR: The current status of microbial synthesis and applications of metal nanoparticles is presented and several factors such as microbial cultivation methods and the extraction techniques have to be optimized and the combinatorial approach such as photobiological methods may be used.
Journal ArticleDOI
Environmental applications for biosurfactants
TL;DR: Biosurfactants are surfactants that are produced extracellularly or as part of the cell membrane by bacteria, yeast and fungi as mentioned in this paper, which are used for soil and water treatment.
Journal ArticleDOI
Templated Techniques for the Synthesis and Assembly of Plasmonic Nanostructures
Journal ArticleDOI
Extracellular biosynthesis of silver nanoparticles using the fungus Aspergillus fumigatus
TL;DR: The synthesis process was quite fast and silver nanoparticles were formed within minutes of silver ion coming in contact with the cell filtrate, and the process of reduction being extracellular and fast may lead to the development of an easy bioprocess for synthesis ofsilver nanoparticles.
References
More filters
Journal ArticleDOI
BACTERIAL HEAVY METAL RESISTANCE: New Surprises
Simon Silver,Le T. Phung +1 more
TL;DR: The first bacterial metallothionein cation-binding proteins, which by definition is a small protein that binds metal cations by means of numerous cysteine thiolates, has been characterized in cyanobacteria.
Book
The Rumen Protozoa
TL;DR: In addition to the bacteria in the rumen there are many larger organisms which at various times have been designated protozoa, of which there are two groups both in the subclass Trichostomatia and the entodiniomorphs.
Journal ArticleDOI
Transition metals in control of gene expression
TL;DR: Many of the inorganic assemblies that otherwise buttress the structure of biopolymers or catalyze substrate transformation in active sites of enzymes have also been adapted to serve sensor functions in the metalloregulatory proteins.
Journal ArticleDOI
Ion efflux systems involved in bacterial metal resistances
Dietrich H. Nies,Simon Silver +1 more
TL;DR: This review concentrates on bacterial efflux systems for inorganic metal cations and anions, which have generally been found as resistance systems from bacteria isolated from metal-polluted environments.
Journal ArticleDOI
Uptake and retention of metals by cell walls of Bacillus subtilis.
Terrance J. Beveridge,R G Murray +1 more
TL;DR: Isolated walls of Bacillus subtilis Marburg, prepared in a manner which avoided metal contamination other than by the growth medium, were incubated in dilute metal solutions, separated by membrane filtration, and monitored by atomic absorption to give uptake data for 18 metals.