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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 PDFNanomaterials (Basel)
March 2023
College of Biological and Environmental Engineering, Zhejiang Shuren University, Hangzhou 310015, China.
A new type of magnetic nanomaterial with FeO as the core and organic polymer as the shell was synthesized by seed emulsion polymerization. This material not only overcomes the problem of insufficient mechanical strength of the organic polymer, it also solves the problem that FeO is prone to oxidation and agglomeration. In order to make the particle size of FeO meet the requirement of the seed, the solvothermal method was used to prepare FeO.
View Article and Find Full Text PDFJ Agric Food Chem
September 2022
Key Laboratory for Analytical Science of Food Safety and Biology of MOE, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350108, China.
Sulfonamide antibiotics (SAs) are widely used in animal husbandry and aquaculture, and the excess residues of SAs in animal-derived foods will harm the health of consumers. In reality, various SAs were alternately used in animal husbandry and aquaculture, and thus, it is urgent need to develop simple and high-throughput methods for simultaneously detecting multiple SAs or groups of SAs in order to realize rapid screening of total SAs residues in animal-derived foods. We herein isolated a broad-specificity aptamer for SAs by using a multi-SAs systematic evolution of ligands by exponential enrichment (SELEX) strategy.
View Article and Find Full Text PDFEnviron Res
November 2022
Soil Science and Agricultural Chemistry, Fac. Sciences, Univ. Vigo, 32004, Ourense, Spain. Electronic address:
In this research, the adsorption/desorption of the antibiotics doxycycline (DC), enrofloxacin (ENR), and sulfamethoxypyradazine (SMP) was studied in 6 agricultural soils with predominance of variable charge, both before and after removing organic matter by calcination. DC adsorption was high at acidic pH, and decreased at pH values above 8. Removal of organic matter with calcination caused just a slight decrease in adsorption, and even in some soils adsorption was similar to that in non-calcined samples.
View Article and Find Full Text PDFMaterials (Basel)
December 2021
Institute of Physical Metallurgy, Metal Forming and Nanotechnology, University of Miskolc, C/2-5 Building 209, H-3515 Miskolc-Egyetemvaros, Hungary.
The comparison of the efficiency of the commercially available photocatalysts, TiO and ZnO, irradiated with 365 nm and 398 nm light, is presented for the removal of two antibiotics, sulfamethazine (SMT) and sulfamethoxypyridazine (SMP). The OH formation rate was compared using coumarin, and higher efficiency was proved for TiO than ZnO, while for 1,4-benzoquinone in O-free suspensions, the higher contribution of the photogenerated electrons to the conversion was observed for ZnO than TiO, especially at 398 nm irradiation. An extremely fast transformation and high quantum yield of SMP in the TiO/LED process were observed.
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