Results 21 to 30 of about 6,716 (215)

Integration of ultrashort-chain compounds into the biomonitoring of per- and polyfluorinated substances in human plasma and serum

Journal of Chromatography Open
Ultrashort-chain (USC) per- and polyfluoroalkyl substances (PFAS) are small and very polar compounds with carbon chain lengths of shorter than C4. Their ubiquitous and high levels of occurrence in environmental aquatic systems have raised significant ...
Shun-Hsin Liang, Justin A. Steimling
doaj   +1 more source

Speciation‐Controlled C–F Bond Functionalization Enabled by Zwitterionic Pnictinidenes

Angewandte Chemie, EarlyView.
Zwitterionic pnictinidenes turn C–F activation into C–X bond construction, enabling broad defluorinative functionalization of polyfluoro(hetero)arenes under mild conditions. Rather than following a metallomimetic Sb(I)/Sb(III) redox turnover, catalysis is redirected by ligand scrambling into a redox‐neutral manifold, revealing catalyst speciation as a ...
Irene Sánchez‐Sordo, Sergio Fernandez, Selwin Fernando, Diego M. Andrada, Oriol Planas   +4 more
wiley   +2 more sources

Bismuth‐Based Photocatalysts for Water Remediation: Design Strategies, Mechanisms, and Challenges

Advanced Functional Materials, EarlyView.
This review highlights representative design strategies for bismuth‐based semiconductor photocatalysts in solar‐driven water purification. Emphasis is placed on electronic structure regulation, oxygen‐vacancy engineering, and interfacial coupling to enable efficient full‐spectrum light utilization, improved charge separation, and selective oxidation in
Shan Liu, Yi Zhao, Liming Cai, Simin Long, Jing Kang, Jingkai Lin, Jimin Shen, Zhonglin Chen, Shaobin Wang, Huayang Zhang   +9 more
wiley   +1 more source

Prenatal per- and polyfluoroalkyl substances exposure and gut microbiota of infants: A prospective cohort study

Ecotoxicology and Environmental Safety
Prenatal exposure to per- and polyfluoroalkyl substances (PFASs) has been reported to be linked to a series of adverse health outcomes in mothers and their children.
Honglei Ji, Min Guo, Fen Yang, Hong Liang, Ziliang Wang, Yao Chen, Huajun Zheng, Maohua Miao, Wei Yuan   +8 more
doaj   +1 more source

Acid Site Design for Low Hydration Proton Exchange Membranes

Advanced Functional Materials, EarlyView.
α‐CF2 substitution adjacent to sulfonic acid increases acid strength and enables efficient proton transport under low hydration conditions. This molecular design reduces the dependence of hydrocarbon proton exchange membranes on excessive water uptake, addressing a key limitation of conventional hydrocarbon PEMs while maintaining favorable conductivity
Ajay Kumar, Lorena Alzate‐Vargas, Mayra Rodriguez‐Pena, Douglas I. Kushner, Marina Pacheco, Panagiotis Bexis, Ahmet Kusoglu, Siddharth Komini Babu, Edward F. Holby, Jacob S. Spendelow, Eun Joo S. Park   +10 more
wiley   +1 more source

Hunting Metabolic Biomarkers for Exposure to Per- and Polyfluoroalkyl Substances: A Review

Metabolites
Per- and polyfluoroalkyl substances (PFAS) represent a class of persistent synthetic chemicals extensively utilized across industrial and consumer sectors, raising substantial environmental and human health concerns.
Xue Ma, Delei Cai, Qing Chen, Zhoujing Zhu, Shixin Zhang, Ziyu Wang, Zhengyan Hu, Haitao Shen, Zhen Meng   +8 more
doaj   +1 more source

Per- and polyfluoroalkyl substances: problematic emerging pollutants of aquatic environment [PDF]

Archives of Environmental Protection, 2020
Per- and polyfl uoroalkyl substances (PFASs) are human-invented chemicals that were created in the middle of the 20th century. They were synthesized for the fi rst time in 1949, and because of their exceptional surfactant properties, they have been ...
Mariusz Grabda, Sylwia Oleszek, Michiaki Matsumoto   +2 more
doaj   +1 more source

Organic Materials of Tomorrow: Horizons of Artificial Intelligence

Advanced Materials, EarlyView.
This review examines machine learning techniques accelerating the discovery of organic semiconductors by linking molecular structure to properties. Key methods include graph neural networks, generative models, and active learning. Applications to organic photovoltaics demonstrate practical impact.
Harold Mena, J. Terence Blaskovits, Kun‐Han Lin, Denis Andrienko   +3 more
wiley   +1 more source

Fetal exposure to perfluoroalkyl substances (PFAS) in drinking water and congenital malformations: A nation-wide register-based study on PFAS in drinking water

Environment International
Background: Teratogenic properties of perfluoroalkyl substances (PFAS) have been assessed in a few studies, however, epidemiological evidence for an association is inconclusive.
Melle Säve-Söderbergh, Irina Gyllenhammar, Tessa Schillemans, Emelie Lindfeldt, Carolina Vogs, Carolina Donat-Vargas, Emma Halldin Ankarberg, Anders Glynn, Lutz Ahrens, Emilie Helte, Agneta Åkesson   +10 more
doaj   +1 more source

Association between urinary per- and poly-fluoroalkyl substances and COVID-19 susceptibility

Environment International, 2021
Background and Objective: The growing impact of the COVID-19 pandemic has heightened the urgency of identifying individuals most at risk of infection. Per- and poly-fluoroalkyl substances (PFASs) are manufactured fluorinated chemicals widely used in many
Junjun Ji, Lingyan Song, Jing Wang, Zhiyun Yang, Haotian Yan, Ting Li, Li Yu, Lingyu Jian, Feixiang Jiang, Junfeng Li, Jinping Zheng, Kefeng Li   +11 more
doaj   +1 more source