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Use of magnetite nanoparticles and magnetic separation for the removal of metal(loid)s from contaminated mine soils.
J Hazard Mater
January 2025
Departamento de Química Orgánica y Bio-Orgánica, Universidad Nacional de Educación a Distancia (UNED), Avenida de Esparta s/n, Las Rozas de Madrid 28232, Spain. Electronic address:
Magnetite nanoparticles have been successfully used for removal and immobilization of contaminants in water, yet their application in soils combined with in situ magnetic separation remains unexplored. We evaluated the effectiveness and optimal conditions for using magnetite nanoparticles combined with magnetic separation to remove metal(loid)s from contaminated mine soils. Soil samples were incubated (15, 45 days) with varying doses of magnetite (0, 25, 50 g kg⁻¹) and moisture (dry, field capacity) and separated using electromagnet or permanent magnet.
View Article and Find Full Text PDFUnlocking dual-mode enzyme activities on bacterial surface: Directional recognition and swift capture of Alicyclobacillus acidoterrestris from fruit juices.
Food Res Int
January 2025
State Key Laboratory of Marine Food Processing and Safety Control, Dalian Polytechnic University, Dalian 116034, Liaoning, China. Electronic address:
The acidophilic and heat-resistant characteristics of Alicyclobacillus acidoterrestris (A. acidoterrestris) pose significant challenges to fruit juice production. Traditional thermal removal methods are often ineffective against this resilient bacterium.
View Article and Find Full Text PDFA holistic approach for the evaluation of iron nanoparticles on maize plants and earthworms in natural soil.
Chemosphere
January 2025
Sustainability of Natural Resources and Energy Program, Cinvestav-Saltillo, Coahuila. C.P. 25900, Mexico.
There is a debate about the implications of the effect of nanoparticles or nanomaterials on edible plants and soil organisms. Earthworms have been used to evaluate soil quality, reproduction, survival, and other biochemical parameters when organisms are exposed to nanomaterials. Most studies have been performed in laboratory settings, and little has been studied under realistic conditions, especially when earthworms and corn plants share the same natural soil and organic matter space.
View Article and Find Full Text PDFMicrobial activity of the inoculum determines the impact of activated carbon, magnetite and zeolite on methane production.
Sci Total Environ
January 2025
CEB - Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal; LABBELS - Associate Laboratory, Guimarães, Braga, Portugal. Electronic address:
The conversion of organic matter to methane through anaerobic digestion (AD) process can be enhanced by different materials. However, literature reports show inconsistent results on the effect of materials in different AD systems. In this study, we evaluated the influence of the inoculum's activity on methane production (MP) efficiency in the presence of different materials (activated carbon (AC), magnetite (Mag), and zeolite (Zeo)).
View Article and Find Full Text PDFAnxiety of microbially synthesized FeO-SPIONs on embryonic/larval ontogeny in red tilapia (Oreochromis sp.).
Appl Microbiol Biotechnol
January 2025
National Institute of Oceanography and Fisheries (NIOF), Cairo, Egypt.
Iron oxide nanoparticles, recognized for their superparamagnetic properties, are promising for future healthcare therapies. However, their extensive use in medicine and electronics contributes to their discharge into our environments, highlighting the need for further research on their cellular damage effects on aquatic organisms. While the detrimental properties of other compounds have been stated in the early-life stages of fish, the cytotoxic consequences of superparamagnetic iron oxide nanoparticles (SPIONs) in these stages are still unexplored.
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