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New insights in uranium bioremediation by cytochromes of the bacterium G. uraniireducens.
J Biol Chem
December 2024
Associate Laboratory i4HB - Institute for Health and Bioeconomy, NOVA School of Science and Technology, Universidade NOVA de Lisboa, 2819-516 Caparica, Portugal.; UCIBIO - Applied Molecular Biosciences Unit, Chemistry Department, NOVA School of Science and Technology, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal. Electronic address:
The bacterium Geotalea uraniireducens, commonly found in uranium-contaminated environments, plays a key role in bioremediation strategies by converting the soluble hexavalent form of uranium (U) into less soluble forms (e.g. U.
View Article and Find Full Text PDFEvidences of the electrogenic sulfur oxidation in constructed wetlands.
Chemosphere
December 2024
College of Environment and Ecology, Chongqing University, Chongqing, PR China. Electronic address:
The sulfur redox cycling, mainly involving sulfide oxidation and sulfate reduction, remains a crucial factor that regulates the treatment performance of constructed wetlands (CWs). However, anoxic environments normally prevail in the CW systems, harboring vast reduced sulfur and sulfur minerals, where the occurrence and mechanism of anoxic sulfide oxidation remain unknown. In this study, CW microcosms filled with quartz sand (Qtz) and pyrite (Pyt) were established to investigate the anoxic sulfur oxidation under the bioelectrochemical manipulations.
View Article and Find Full Text PDFRevolutionary self-powered transducing mechanism for long-lasting and stable glucose monitoring: achieving selective and sensitive bacterial endospore germination in microengineered paper-based platforms.
Microsyst Nanoeng
December 2024
Department of Electrical & Computer Engineering, Bioelectronics & Microsystems Laboratory, State University of New York at Binghamton, Binghamton, NY, 13902, USA.
We introduce a groundbreaking proof-of-concept for a novel glucose monitoring transducing mechanism, marking the first demonstration of a spore-forming microbial whole-cell sensing platform. The approach uses selective and sensitive germination of Bacillus subtilis spores in response to glucose in potassium-rich bodily fluids such as sweat. As the rate of germination and the number of metabolically active germinating cells are directly proportional to glucose concentration, the electrogenic activity of these cells-manifested as electricity-serves as a self-powered transducing signal for glucose detection.
View Article and Find Full Text PDFMicrobial Study with Mathematical and Statistical Modelling for Synchronous Biotreatment of Actual Restaurant Wastewater and Bioelectricity Recovery in Microbial Fuel Cell.
Indian J Microbiol
June 2024
Department of Environmental Engineering, Tikrit University, Tikrit, Iraq.
Unlabelled: The demand for energy resources is constantly increasing. That means need more fossil fuels to provide them. People consume a lot of food and this produces many wastes.
View Article and Find Full Text PDFFabricating an advanced electrogenic chassis by activating microbial metabolism and fine-tuning extracellular electron transfer.
Trends Biotechnol
October 2024
CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei, 230026, China. Electronic address:
Exploiting electrogenic microorganisms as unconventional chassis hosts offers potential solutions to global energy and environmental challenges. However, their limited electrogenic efficiency and metabolic versatility, due to genetic and metabolic constraints, hinder broader applications. Herein, we developed a multifaceted approach to fabricate an enhanced electrogenic chassis, starting with streamlining the genome by removing extrachromosomal genetic material.
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