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Oxidative degradation of sulfamethazine by manganese oxide supported biochar activated periodate: Effect and mechanism.
Ecotoxicol Environ Saf
January 2025
State Environmental Protection Key Laboratory of Soil Environmental Management and Pollution Control, Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment of China, Nanjing, Jiangsu, 210042, China. Electronic address:
In this study, manganese oxide supported biochar (MBC) was used as a catalyst of periodate (PI) for the oxidative degradation of sulfonamide antibiotic sulfamethazine (SMZ). The degradation rate of 10 mg/L SMZ reached 99 % in 60 min in the MBC/PI system, and the optimal condition was pH 3.5, 0.
View Article and Find Full Text PDFPhotoheterotrophic extracellular reduction of ferrihydrite activates diverse intracellular metabolic pathways in Rhodopseudomonas palustris for enhanced antibiotic degradation.
Water Res
January 2025
Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou, 510006, China. Electronic address:
Anoxygenic photosynthetic bacteria (APB) have been frequently detected as a photoautotrophic Fe-carbon cycling drivers in photic and anoxic environment. However, the potential capacity of these bacteria for photoheterotrophic extracellular reduction of iron-containing minerals and their impact on the transformation of organic pollutants remain currently unknown. This study investigated the capacity of R.
View Article and Find Full Text PDFToxic effects and mechanisms of nanoplastics and sulfonamide antibiotics on Scenedesmus obliquus.
Ecotoxicol Environ Saf
January 2025
Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin University of Technology, Guilin 541004, China; Guangxi Collaborative Innovation Center for Water Pollution Control and Water Safety Guarantee in Karst Region.
The prevalence of nanoplastics (NPs) and sulfonamide antibiotics (SAs) in the aquatic environment is potentially harmful to the environment, and these pollutants are often present in the environment in the form of composite ones, thereby introducing more complex effects and hazards to the environment. Therefore, it is crucial to investigate the toxic effects of the individual target pollutants and their mixtures. In this study, we used Scenedesmus obliquus as the test organisms, two types of NPs: polystyrene (PS) and amine-modified (NH-PS), four SAs: sulfapyridine (SPY), sulfamethazine (SMR), sulfamethoxypyridazine (SMP), and sulfamethoxazole (SMZ), and their eight binary mixtures were examined.
View Article and Find Full Text PDFDissolution Thermodynamics of the Solubility of Sulfamethazine in (Acetonitrile + 1-Propanol) Mixtures.
Pharmaceuticals (Basel)
November 2024
Grupo de Investigaciones Farmacéutico-Fisicoquímicas, Departamento de Farmacia, Facultad de Ciencias, Universidad Nacional de Colombia, Sede Bogotá, Carrera 30 No. 45-03, Bogotá 110321, Cundinamarca, Colombia.
: Solubility is one of the most important parameters in the research and development processes of the pharmaceutical industry. In this context, cosolubility is one of the most used strategies to improve the solubility of poorly soluble drugs, besides allowing to identify some factors involved in the dissolution process. The aim of this research is to evaluate the solubility of sulfamethazine in acetotinitrile + 1-propanol cosolvent mixtures at 9 temperatures (278.
View Article and Find Full Text PDFAccounting for microorganisms yields stricter water quality criteria and elevated ecological risks of antibiotics: A case study of sulfonamides in the Yangtze River Delta.
Ecotoxicol Environ Saf
January 2025
School of Public Health, Shanghai Jiao Tong University, Shanghai 200025, China. Electronic address:
The derivation of water quality criteria (WQC) for antibiotics is influenced by the inclusion of various organisms' toxicity data, including microbial data, though no definitive conclusions have been reached. This study focuses on sulfonamide antibiotics, common in the Yangtze River Delta (YRD), to assess the influences of different organisms' toxicity data on determining WQCs and subsequent evaluation of ecological risks. A total of 263 toxicity data points from eight sulfonamides, including sulfamethoxazole (SMX) and sulfamethazine (SM2), were selected to derive WQCs using Species Sensitivity Distribution (SSD) methods.
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