Results 71 to 80 of about 10,443 (220)

Bioleaching of pyrite by A. ferrooxidans and L. ferriphilum

Transactions of Nonferrous Metals Society of China, 2008
Abstract Pyrite oxidation rates were examined under various conditions in the presence of A. ferrooxidans and L. ferriphilum, in which different pulp concentration, inoculation amount, external addition of Fe 3+ and initial pH value were performed. It is found that A. ferrooxidans and L.
Lin ZHANG, Guan-zhou QIU, Yue-hua HU, Xiao-jun SUN, Jian-hua LI, Guo-hua GU   +5 more
openaire   +1 more source

Pyrite-Based Cr(VI) Reduction Driven by Chemoautotrophic Acidophilic Bacteria

Frontiers in Microbiology, 2020
Cr(VI) is considered as a priority pollutant, and its remediation has attracted increasing attention in the environmental area. In this study, the driving of pyrite-based Cr(VI) reduction by Acidithiobacillus ferrooxidans was systematically investigated.
Xinxing Liu, Haiyan Wu, Min Gan, Guanzhou Qiu   +3 more
doaj   +1 more source

Evaluación de oxidación bacteriana de sulfuros con Acidithiobacillus ferrooxidans mediante pruebas de FTIR y difracción de rayos X Evaluating Acidithiobacillus ferrooxidans bacterial oxidation of sulphur compounds using FTIR and X-ray diffraction assays

Revista Colombiana de Biotecnología, 2003
Una cepa bacteriana nativa con capacidad de oxidar hierro ferroso y compuestos del azufre fue aislada a partir de efluentes y material de la mina de oro La Maruja, en el municipio de Marmato (Caldas), la cual fue identificada bioquímicamente como ...
Ruiz Orlando, Lemehsko Victor, Montoya Olga I., Márquez Marco A., Muñoz Alexandra   +4 more
doaj   +2 more sources

Microbial ecology of Thiobacillus ferrooxidans [PDF]

, 1990
FINAL TECHNICAL REPORT TO U.S. DEPARTMENT OF THE INTERIOR Geological Survey Washington. D.C.The contents of this report were developed in part under a grant from the Department of the Interior, U.S. Geological Survey.
Braddock, Joan F., Brown, Edward J., Dixon, David P., Hong, Seongho, Luong, Huan V., Rasley, Brian T.   +5 more
core  

Interactions of rare earth elements with living organisms and emerging biotechnical applications

PLANTS, PEOPLE, PLANET, Volume 7, Issue 5, Page 1251-1274, September 2025.
Rare earth elements (REEs) are critical resources required to achieve net‐zero carbon emission targets and energy security. However, rising demand for REEs coupled with significant extraction and processing challenges and geopolitical risks restricts access to REE resources.
Samantha A. McGaughey, Shagufta Iqbal, Annamaria De Rosa, Jessica A. Caley, Anna H. Kaksonen, Denys Villa‐Gomez, Caitlin S. Byrt   +6 more
wiley   +1 more source

Newly Isolated Acidithiobacillus sp. Ksh From Kashen Copper Ore: Peculiarities of EPS and Colloidal Exopolysaccharide

Frontiers in Microbiology, 2020
A novel strain of an iron- and sulfur-oxidizing bacterium was isolated from a natural biotope at Kashen copper ore (Martakert Province, Republic of Artsakh). The strain is able to grow and oxidize ferrous ions in the range of pH 1.4–2.6 with optimal pH 2.
Narine Vardanyan, Hamlet Badalyan, Levon Markosyan, Arevik Vardanyan, Ruiyong Zhang, Ruiyong Zhang, Wolfgang Sand, Wolfgang Sand   +7 more
doaj   +1 more source

Emerging Nanotechnology Strategies for Obesity Therapy

Advanced Science, Volume 12, Issue 32, August 28, 2025.
Three types of nanomaterials used for obesity treatment are highlighted, including inorganic nanomaterials, organic nanomaterials and biomimetic nanomaterials. A detailed and comprehensive introduction to the recent nanotechnology strategies for obesity management is also provided, including drug delivery, photodynamic therapy, hyperthermia, gas ...
Weili Chang, Zhaoxu Meng, Yuezhu Zhao, Yake Qi, Zhou Li, He Lian   +5 more
wiley   +1 more source

A Comparative Study on the Effect of Flotation Reagents on Growth and Iron Oxidation Activities of Leptospirillum ferrooxidans and Acidithiobacillus ferrooxidans [PDF]

Minerals, 2016
Recently, extraction of metals from different resources using a simple, efficient, and low-cost technique-known as bioleaching-has been widely considered, and has turned out to be an important global technology. Leptospirillum ferrooxidans and Acidithiobacillus (Thiobacillus) ferrooxidans are ubiquitous bacteria in the biomining industry.
Mohammad Jafari, Said Shafaei, Hadi Abdollahi, Mahdi Gharabaghi, Saeed Chehreh Chelgani   +4 more
openaire   +1 more source

Microbial catalysis of the oxygen reduction reaction for microbial fuel cells: a review. [PDF]

, 2012
The slow kinetics of the electrochemical oxygen reduction reaction (ORR) is a crucial bottleneck in the development of microbial fuel cells (MFCs). This article firstly gives an overview of the particular constraints imposed on ORR by MFC operating ...
Bergel, Alain, Erable, Benjamin, Féron, Damien   +2 more
core   +4 more sources

Fast pH‐Driven Solubilization Method of Realgar (As4S4) to Reduce the Toxicity of Arsenic [As(III)] for Medicinal Purposes

Advanced Science, Volume 12, Issue 29, August 7, 2025.
Arsenic trioxide transformed acute promyelocytic leukemia therapy and shows promise against HIV. A new method to solubilize the mineral realgar produces different arsenic species depleting the main arsenic target, nuclear PML protein, and retaining effects on leukemic and HIV reservoir cells, while minimizing off‐target damage.
Bojana Lucic, Douglas Santana Franciscato, Helton Pereira Nogueira, Lara Gallucci, Alceu Totti Silveira Junior, Asmaa Mohamed Ismail, Millie Robinson, Teresa Dallinger, Claudia Gutfleisch, Jochen Kurz, Maytê Toledo, Jessica Dias da Silva Ferraz, Mohammad Tarek, Danilo Dias, Ricardo Sobhie Diaz, Mahmoud ElHefnawi, Mattia Forcato, Hugo P Monteiro, Marina Lusic, Iart Luca Shytaj, Andrea Savarino   +20 more
wiley   +1 more source