Results 81 to 90 of about 9,443 (220)

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

Disolución de hierro de un concentrado complejo de esfalerita por Acidithiobacillus ferrooxidans [PDF]

, 2008
En el presente trabajo se empleó una cepa de Acidithiobacillus ferrooxidans (Af) para biolixiviar el hierro pirítico presente en un concentrado de sulfuro de zinc con un contenido de 1,41% en peso de hierro.
Castillo, P., de Lira, P., Makita, M.A., Orrantia, E., Pecina, E. T., Uribe, A.   +5 more
core  

Insights on the structure and stability of Licanantase: a trimeric acid-stable coiled-coil lipoprotein from Acidithiobacillus thiooxidans [PDF]

, 2014
Licanantase (Lic) is the major component of the secretome of Acidithiobacillus thiooxidans when grown in elemental sulphur. When used as an additive, Lic improves copper recovery from bioleaching processes. However, this recovery enhancement is not fully
Alejandro Maass, Fernando Abarca, Patricio Martinez, Pilar Parada, Sebastian E. Gutierrez-Maldonado, Tomas Perez-Acle   +5 more
core   +2 more sources

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

Bioleaching of low grade uranium ore containing pyrite using A. ferrooxidans and A. thiooxidans [PDF]

, 2012
A process of uranium extraction from ore containing 3.1 % pyrite by bacterial leaching was investigated in shaken flasks during 90 days. The highest uranium recovery amounting to 85.1 % was obtained using binary mixture of Acidithiobacillus ferrooxidans ...
Klyushnikov, A. M., Umanskii, A. B.
core   +1 more source

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

Microbial Diversity and Its Relationship to Physicochemical Characteristics of the Water in Two Extreme Acidic Pit Lakes from the Iberian Pyrite Belt (SW Spain) [PDF]

, 2015
The Iberian Pyrite Belt (IPB) hosts one of the world's largest accumulations of acidic mine wastes and pit lakes. The mineralogical and textural characteristics of the IPB ores have favored the oxidation and dissolution of metallic sulfides, mainly ...
Aguilera, Ángeles, Amils, Ricardo, Gomáriz, María, González-Toril, Elena, López-Pamo, Enrique, Santofimia, Esther   +5 more
core   +2 more sources

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, Pascal Pfister, Ana Lago‐Maciel, Tobias J. Erb, Antonio J. Pierik, Johannes G. Rebelein   +5 more
wiley   +1 more source

The pio Operon Is Essential for Phototrophic Fe(II) Oxidation in Rhodopseudomonas palustris TIE-1 [PDF]

, 2006
Phototrophic Fe(II)-oxidizing bacteria couple the oxidation of ferrous iron [Fe(II)] to reductive CO2 fixation by using light energy, but until recently, little has been understood about the molecular basis for this process. Here we report the discovery,
Jiao, Yongqin, Newman, Dianne K.
core   +4 more sources

Bioleaching of anilite by Acidithiobacillus ferrooxidans

Transactions of Nonferrous Metals Society of China, 2008
Abstract In order to characterize the efficiency of copper bioleaching from anilite using pure cultures of Acidithiobacillus ferrooxidans in the absence and presence of ferrous sulphate, the experiments were carried out in shake flasks with or without 4 g/L ferrous sulphate (FeSO 4 ·7H 2 O) at pH 2.0, 150 r/min and 35°C.
Hai-na CHENG, Yue-hua HU, Jian GAO, Heng MA   +3 more
openaire   +1 more source