Results 61 to 70 of about 24,910 (256)

Comparative Study of the Endocrine-Disrupting Activity of Bisphenol A and 19 Related Compounds [PDF]

Toxicological Sciences, 2005
The endocrine-disrupting activities of bisphenol A (BPA) and 19 related compounds were comparatively examined by means of different in vitro and in vivo reporter assays. BPA and some related compounds exhibited estrogenic activity in human breast cancer cell line MCF-7, but there were remarkable differences in activity.
Shigeyuki, Kitamura, Tomoharu, Suzuki, Seigo, Sanoh, Ryuki, Kohta, Norimasa, Jinno, Kazumi, Sugihara, Shin'ichi, Yoshihara, Nariaki, Fujimoto, Hiromitsu, Watanabe, Shigeru, Ohta   +9 more
openaire   +2 more sources

Selective Sequential Depolymerization of Mixed Plastics Mediated by Photothermal Conversion

Angewandte Chemie, EarlyView.
This work provides a selective sequential depolymerization strategy for mixed plastic waste. The method enables depolymerization of poly(L‐lactide), polystyrene, and poly(ethylene terephthalate), including their post‐consumer plastics. Without presorting, monomer separation is achieved by leveraging the distinct chemical reactivities of each polymer in
Yoon‐Jung Jang, Angela Milo, Deepika Shingwekar, Hanning Jiang, Erin E. Stache   +4 more
wiley   +2 more sources

Diastereomeric Monomers Enable Anion‐Exchange Membranes With Controlled Local Polymer Backbone Flexibility and High Conductivity

Advanced Science, EarlyView.
Stereochemistry enables control of ion‐exchange membrane properties via local backbone flexibility without altering the polymer composition. Syn‐enriched membranes show higher water uptake and improved water‐electrolysis performance, whereas anti‐enriched membranes exhibit higher hydration efficiency and improved mechanical properties.
Si Chen, Xuchen Lyu, Triet Nguyen Dai Luong, Patric Jannasch   +3 more
wiley   +1 more source

A Tert‐Alkyl Terephthalate Derivative as a Universal Degradable Unit for Condensation Polymers

Angewandte Chemie, EarlyView.
A sterically bulky dicarboxylic acid core bearing a tertiary alkyl ester enables photocatalytic C─O bond cleavage via generation of a stabilized tertiary alkyl radical. Incorporated into polyarylate, polyurethane, and polyester, this universal trigger facilitates efficient degradation under identical conditions (up to 99% within 2–4 h). Remarkably, the
Yasuyuki Nitta, Ryosuke Nishikuma, Souya Kouda, Masatoshi Ohyama, Meiki Shinoda, Tsuyoshi Taniguchi, Takashi Koike, Takashi Nishikata   +7 more
wiley   +2 more sources

An exploratory study on exposure to bisphenol A analogues and breast cancer risk

Environment International
Endocrine disrupting compounds (EDCs) such as Bisphenol A (BPA) and its structural analogues are widely used in consumer products and have raised concerns due to their potential to disrupt hormonal balances and promote carcinogenic processes.
S. Siddique, A. Habibagahi, L. Marro, I. Bouraoui, C. Kubwabo, S.A. Harris   +5 more
doaj   +1 more source

Facet‐Dependent Activity of Fe3S4 Crystal in Peroxydisulfate Activation for Organic Pollutants Degradation

Advanced Science, EarlyView.
Fe3S4 crystal with the exposed [001] facet exhibits higher catalytic activity for activating peroxydisulfate (PDS) to degrade clothianidin (CLO), which can be attributed to the dissolved Fe‐induced homogeneous catalytic process; while Fe3S4 crystal with the exposed [1‐21] facet exhibits excellent catalytic stability and durability, thereby boosting the
Jiaqu Tan, Min Yu, Jinfeng Wang, Dongya Li, Fan Yang, Yulong Zhang, Xueming Lin   +6 more
wiley   +1 more source

Decouple H2O2 Electrosynthesis From Microenvironmental Decomposition via Atomic Site Density Engineering

Angewandte Chemie, EarlyView.
Using defect‐rich Co‐N2O2 single‐atom catalysts as a model system, this work reveals that atomic site density governs the competition between H2O2 electrosynthesis and microenvironmental decomposition during 2e−‐ORR. Optimised site isolation suppresses HPRR and HDR, thereby establishing a site‐density principle to balance H2O2 formation and ...
Junwen Chen, Hongyu Zhou, Qiming Zhang, Shuang Zhong, Wei Ren, Lei Shi, Li Gao, Shaobin Wang, Xiaoguang Duan   +8 more
wiley   +2 more sources

A Sustainable Bio‐Based Epoxy Thermoset as a High‐Performance Alternative to BPA‐Based Resins

Advanced Science, EarlyView.
A rigid–flexible bio‐based epoxy network integrates soybean oil, lignin, and maleic anhydride to overcome the strength–toughness–sustainability trade‐off of conventional BPA epoxy. The thermoset delivers excellent performance as both a structural adhesive and a matrix for glass‐fabric composites, while enabling pH‐responsive degradation, environmental ...
Jiyun Qi, Xinyi Hui, Xipeng Zhang, Jia‐Long Wen, Tong‐Qi Yuan   +4 more
wiley   +1 more source

Bisphenols: Endocrine Disruptors and Their Impact on Fish: A Review

Fishes
Bisphenols (BPs), particularly bisphenol A (BPA) and its structural analogues, are synthetic compounds widely used in plastics and industrial materials. These substances are also recognised as endocrine-disrupting chemicals (EDCs) due to their ability to
Nikola Peskova, Jana Blahova
doaj   +1 more source

Profiling Volatile Constituents of Homemade Preserved Foods Prepared in Early 1950s South Dakota (USA) Using Solid-Phase Microextraction (SPME) with Gas Chromatography–Mass Spectrometry (GC-MS) Determination

Molecules, 2019
An essential dimension of food tasting (i.e., flavor) is olfactory stimulation by volatile organic compounds (VOCs) emitted therefrom. Here, we developed a novel analytical method based on solid-phase microextraction (SPME) sampling in argon-filled gas ...
Lucas J. Leinen, Vaille A. Swenson, Hope L. Juntunen, Scott E. McKay, Samantha M. O’Hanlon, Patrick Videau, Michael O. Gaylor   +6 more
doaj   +1 more source