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Perylene diimide based fluorescent sensors for aqueous detection of perfluorooctane sulfonate (PFOS).
Anal Chim Acta
March 2025
Department of Materials Science and Engineering, University of Utah, Salt Lake City, UT, 84112, USA. Electronic address:
Background: Perfluorooctane sulfonate (PFOS), one of the most harmful members of the large group of per- and poly-fluoroalkyl substances (PFAS), is notorious for its environmental persistence, bioaccumulation, and toxic effects, raising serious environmental and health concerns. Developing rapid and sensitive methods to detect PFOS in water is critical for effective monitoring and protection against this hazardous chemical.
Results: In this study, we developed rapid and highly sensitive fluorometric sensors (PDI-2+ , PDI-6+ ) for detecting PFOS.
Estimating wastewater emissions and environmental levels of typical organic contaminants based on regionalized modelling.
Environ Res
January 2025
The Key Laboratory of Environmental Pollution Health Risk Assessment, Research Center of Emerging Contaminants, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, P.R. China.
Organic contaminants (OCs) are released into the environment through effluent discharges from wastewater treatment plants (WWTP), posing risks to environment health. However, emissions from various source, particularly large-scale investigations across different industries, remain poorly understood. Based on both sampling and statistical data, this study estimates the emissions of 10 OCs, including perfluorooctane acid (PFOA), perfluorooctane sulfonate (PFOS), 4-nonylphenol (4-NP), 4-tert-octylphenol (4-t-OP), dibutyl phthalate (DBP), di-iso-butyl phthalate (DIBP), dimethyl phthalate (DMP), butyl benzyl phthalate (BBP), di(2-ethylhexyl) phthalate (DEHP), and bisphenol A (BPA), from the effluents of 160 factories across 8 industries, 541 municipal wastewater treatment plants (MWWTPs), and 8 waste treatment plants (WTPs) in the upper Yangtze River Basin.
View Article and Find Full Text PDFEnantioselection behaviors and risk assessments of chiral pesticide ethiprole and its chiral metabolite ethiprole amide in five kinds of vegetables.
Food Chem
January 2025
State Key Laboratory of Agricultural Products Safety/ Key Laboratory of Detection for Pesticide Residues and Control of Zhejiang, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, PR China; Agricultural Ministry Key Laboratory for Pesticide Residue Detection, Hangzhou 310021, PR China. Electronic address:
Ethiprole is a second-generation phenylpyrazole insecticide used in agricultural production as an alternative to fipronil due to its lower toxicity to bees. Ethiprole amide is chiral metabolite of ethiprole, but information regarding its formation and degradation in vegetables is limited. Here, the absolute configuration of ethiprole amide enantiomer was determined through circular dichroism, and the behaviors of chiral ethiprole and its metabolites in five kinds of vegetables were studied through field experiments.
View Article and Find Full Text PDFChalcogen dihydrobenzofuran compounds as potential neuroprotective agents: an in vitro and in silico biological investigation.
Biochimie
January 2025
Laboratory of Biochemistry and Molecular Neuropharmacology (LABIONEM), Graduate Program in Biochemistry and Bioprospecting (PPGBBio), Chemical, Pharmaceutical, and Food Sciences Center (CCQFA), Federal University of Pelotas (UFPel), 96010-900 RS, Brazil. Electronic address:
Oxidative stress arises from an imbalance between reactive species (RS) production and the antioxidant defense, increasing the brain susceptibility to neurodegenerative and psychiatric diseases. Besides, changes in the expression or activity of neurotransmitter metabolism enzymes, such as monoamine oxidases (MAO), are also associated with mental disorders, including depression. Considering this, antioxidant and MAO-A activity inhibitory potential of six 2,3-chalcogenodihydrobenzofurans (2,3-DHBF) was investigated through in vitro and in silico tests.
View Article and Find Full Text PDFEnvironment-wide association study of five per- and polyfluoroalkyl substance (PFASs) exposure pathways in Korean adolescents from the Korean National Environmental Health Survey (2018-2020).
Chemosphere
January 2025
Department of Preventive Medicine, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea; Environmental Health Center, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea. Electronic address:
Per- and polyfluoroalkyl substances (PFASs) are widely used in consumer products and are easily encountered in daily life. PFASs that accumulate in the human body can negatively affect adolescent health. This study aimed to identify key exposure pathways that influence serum PFAS levels in Korean adolescents, using data from the Korean National Environmental Health Survey (2018-2020) cycle 4.
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