Magnetite Nanoparticles as Metastable Biogeobatteries in Consecutive Redox Cycles

Chemistry, Nanoscience, Environmental Chemistry, Earth Sciences, Geochemistry, Life Sciences, Microbiology,
magnetite   nanoparticles   redox   dissolution   biogeobattery  

Iron (Fe) is one of the most abundant elements on Earth, widely present in soils and sediments, and participates in global carbon, nitrogen, and oxygen cycles. The redox reactions of iron play a crucial role in biogeochemical cycles, particularly in the processes of iron oxidation and reduction. Iron minerals, especially mixed-valent iron minerals ...

Microbial Reduction of Fe(III)-Bearing Solids Recovered from Hydraulic Fracturing Flowback Water: Implications for Wastewater Treatment

Chemistry, Environmental Chemistry, Earth Sciences, Geochemistry, Engineering, Environmental Engineering, Life Sciences, Microbiology,
hydraulic fracturing   flowback water   microbial reduction   wastewater treatment   Fe(III)-bearing solids  

Hydraulic fracturing is a technique used to extract natural gas from unconventional reservoirs, but it generates large volumes of flowback and produced water. These waters contain complex mixtures of organic and inorganic constituents, particularly the solids associated with these fluids, which are often rich in iron (Fe), toxic organics, heavy met...

Bacterial Toxicity of Sulfidated Nanoscale Zerovalent Iron in Aerobic and Anaerobic Systems: Implications for Chlorinated Solvent Clean-Up Strategies

Chemistry, Environmental Chemistry, Engineering, Environmental Engineering, Life Sciences, Microbiology,
nanoscale zerovalent iron   sulfidation   bacterial toxicity   chlorinated solvents   aerobic systems   anaerobic systems   clean-up strategies  

Academic Background The widespread use and improper disposal of chlorinated solvents (such as perchloroethylene and trichloroethylene) have led to severe contamination of soil and groundwater worldwide. These pollutants not only threaten groundwater security but may also affect human health through the food chain. Although traditional microbial red...

The Proprotein Convertase Furin as a Novel Aneurysm Predisposition Gene Impairing TGF-β Signalling

Medicine, Cardiovascular System, Life Sciences, Genetics,
aortic aneurysm   Furin   TGF-β signalling   proprotein convertase   genetic predisposition  

Academic Background Aortic aneurysm (AA) is a condition characterized by abnormal dilation of the aorta, commonly occurring in the abdominal and thoracic aorta. Aortic aneurysms are more prevalent in individuals over the age of 65, and if not diagnosed and treated promptly, they can lead to fatal ruptures. Although age, smoking, hypertension, and m...

Maternal Folic Acid Over-Supplementation Impairs Cardiac Function in Mice Offspring by Inhibiting SOD1 Expression

Medicine, Obstetrics and Gynecology, Cardiovascular System, Life Sciences,
folic acid   over-supplementation   cardiac function   superoxide dismutase 1   N-acetylcysteine  

Background Folic Acid (FA) supplementation during pregnancy is widely recommended to reduce the risk of fetal congenital defects, particularly in the prevention of neural tube defects and congenital heart disease. However, despite the significant benefits of FA supplementation in preventing certain diseases, whether excessive FA supplementation may...