Results 81 to 90 of about 10,443 (220)
Peculiarities of a Colloidal Polysaccharide of Newly Isolated Iron Oxidizing Bacteria in Armenia [PDF]
, 2017 Microorganisms belonging to different systematic and physiological groups produce various intra- and extracellular polysaccharides, which both play an important role in the life of microorganisms and have great practical application.
Badalyan, H. (Hamlet) +3 more
core +1 more source
Two Key Ferredoxins for Nitrogen Fixation Have Different Specificities and Biophysical Properties
Chemistry – A European Journal, Volume 31, Issue 37, July 2, 2025.Two ferredoxins, FdC and FdN, are collectively essential for the process of nitrogen fixation by the iron nitrogenase in R. capsulatus. We explore the biophysical factors, through spectroscopic and structural characterizations, which determine ferredoxin functionality and pathway specificity. The structure of FdC (PDB: 9I2A) and model of FdN (AF‐D5ARY6)
Holly Addison +5 more
wiley +1 more source
Revista Colombiana de Biotecnología, 2011 Adaptation of a strain Acidithiobacillus ferrooxidans compatible on concentrates of chalcopyrite (CuFeS2), sphalerite (ZnS) and galena (PbS) RESUMEN En este estudio se evaluó la adaptación de una cepa compatible con Acidithiobacillus ferrooxidans a ...
E Mejía +4 more
doaj
Recent Advances in Recycling of Copper‐Based Waste Materials: A Critical Review
cMat, Volume 2, Issue 2, June 2025.ABSTRACT Copper plays a crucial role in the civilization of our lives. This review examines the flow of copper from the mining of ores to the end‐of‐life product, with particular emphasis on the recovery and re‐functionalization of copper and copper‐containing wastes. Beginning with the analysis of the global copper market, reserves, supply, and demand,
Rui‐Ting Zhan +10 more
wiley +1 more source
Purification and Regulation of a Cloned Thiobacillus ferrooxidans Glutamine Synthetase [PDF]
Microbiology, 1986 Summary: Glutamine synthetase (GS) (EC 6.3.1.2) was purified from an Escherichia coli glnA deletion containing the Thiobacillus ferrooxidans GS structural gene. The apparent M r of the cloned Thiobacillus ferrooxidans GS subunit was approximately 60 000.
M. E. C. BARROS +2 more
openaire +1 more source
Statistical and kinetic study for leaching of covellite in a chloride media [PDF]
, 2019 Covellite is a relatively rare copper sulfide with slow dissolution kinetics. The present investigation used the surface optimization methodology to evaluate the effect of three independent variables (time, chloride concentration and sulfuric acid ...
Briceño Romero, Williams +5 more
core
Comparative genomics in acid mine drainage biofilm communities reveals metabolic and structural differentiation of co-occurring archaea [PDF]
, 2016 Background Metal sulfide mineral dissolution during bioleaching and acid mine drainage (AMD) formation creates an environment that is inhospitable to most life. Despite dominance by a small number of bacteria, AMD microbial biofilm communities contain a
Banfield, Jillian F. +6 more
core +2 more sources
Lanmodulin‐Decorated Microbes for Efficient Lanthanide Recovery
Advanced Materials, Volume 37, Issue 10, March 12, 2025.Bio‐scaffolded lanmodulin (LanM) on E. coli is developed as a simple, effective material for repeated capture and release of rare earth elements (REEs). Over 80% of four REE cations are captured, even in the presence of excess competitive ions. The material can be employed in a filtration flow‐through system with a capture capacity of 11.8 ± 0.9 mg g−1
Melanie Gut +6 more
wiley +1 more source
Chemistry–Methods, Volume 5, Issue 3, March 2025.Different electrochemical and physicochemical methods employed for metal recovery and removal from various sources are presented herein, along with their key performance indicators. The main strengths and weaknesses of each technology are discussed in a comparative manner, when possible.
Stefanos Mourdikoudis +1 more
wiley +1 more source
Effect of heat treatment on bio-corrosion rate of steel structure (API 5L) in marine evironment
MATEC Web of Conferences, 2018 One of the cause of corrosion is the attachment of bacteria or commonly called as bio-corrosion or Microbial Influenced Corrosion (MIC). This aim of the research was to determine effect of heat treatment process on the bio-corrosion rate of API 5L steel.
Pratikno Herman +2 more
doaj +1 more source