Results 51 to 60 of about 33,101 (301)

Clustomesogen Showing Sub‐Zero Liquid Crystal Properties: Supramolecular Assembly Between Cs2[Mo6Ii8(OCOC2F5)6] and Hexaethylenoxide Containing Mesogenic Dimers

open access: yesAdvanced Materials, EarlyView.
Associating a red‐NIR phosphorescent octahedral hexanuclear molybdenum cluster compound with hexaethyleneoxide chains bearing mesogenic units on both ends leads to an emissive hybrid liquid crystal showing mesomorphism on a very unusual temperature range down to −25°C.
Killiann Heinz   +11 more
wiley   +1 more source

Development of an Ultra-Performance Liquid Chromatography-Tandem Mass Spectrometry Method for Hydroxylated Polychlorinated Biphenyls in Animal-Derived Food

open access: yesMolecules, 2022
Hydroxylated polychlorinated biphenyls (OH-PCBs) are a group of metabolites biotransformed from polychlorinated biphenyls by animals with higher toxicities than their parent compounds.
Wenyu Zhao   +7 more
doaj   +1 more source

Single Crystals of Perylene Diimide‐Based Two‐Dimensional Covalent Organic Frameworks

open access: yesAdvanced Materials, EarlyView.
Synthesizing extended crystals of two‐dimensional covalent organic frameworks (2D COFs) has remained a major challenge. Here, we report a high‐temperature double‐modulator strategy that provides access to new perylene diimide (PDI)‐based COFs with crystal sizes of up to 50 µm.
Ling Zhang   +12 more
wiley   +1 more source

Thyroid hormone levels associate with exposure to polychlorinated biphenyls and polybrominated biphenyls in adults exposed as children

open access: yesEnvironmental Health, 2019
Background Michigan residents were directly exposed to endocrine-disrupting compounds, polybrominated biphenyl (PBB) and polychlorinated biphenyl (PCB).
Sarah W. Curtis   +12 more
doaj   +1 more source

Microwave assisted and in-situ generated palladium nanoparticles catalysed desulfitative synthesis of cross-biphenyls from arylsulfonyl chlorides and phenylboronic acids

open access: yesResults in Chemistry, 2021
A microwave assisted reaction protocol for Suzuki–Miyaura cross-coupling has been developed. Substituted arylboronic acids and arylsulfonyl chlorides coupled under microwave irradiation (MWI) to produce cross-biphenyls in high yields under aerobic ...
Prasanta Kumar Raul   +6 more
doaj   +1 more source

Hydroxylations of Biphenyl by Fungi [PDF]

open access: yesJournal of Applied Bacteriology, 1980
Sixty‐six species of fungi were screened for their ability to hydroxylate biphenyl. Thin‐layer and gas chromatographic analyses indicated that seven organisms actively hydroxylated this substrate. Of particular interest were Cunninghamella echinulata ATCC 9244 which produced 4‐hydroxybiphenyl
R V, Smith   +3 more
openaire   +2 more sources

Development of selective sorbent materials for the determination of polychlorinated biphenyls (PCBs) in the environment

open access: yes, 2016
In this thesis, synthesis of molecularly imprinted polymers with molecular recognition for polychlorinated biphenyls (PCBs) as well as the application of the polymers as pre-concentration and clean-up sorbents in the determination of these compounds in ...
Ndunda, Elizabeth
core   +1 more source

Designing Strong, Tough, Fire‐Retardant and Self‐Healing Elastomers with Phosphorus/Nitrogen‐ and Biphenyl‐Containing Segments

open access: yesAdvanced Materials, EarlyView.
By designing a P/N‐ and π–π interacting biphenyl‐containing diol as hard segments but side groups, a strong, tough, fire‐extinguishing and self‐healing elastomer is developed, demonstrating a break strain of ∼2500%, a toughness of 379 MJ/m3 and a tensile strength of 46 MPa, as well as a healing efficiency of 95% (tensile strength) and 99% (break strain)
Yijiao Xue   +11 more
wiley   +1 more source

Quality of cultured eels as affected by pollution sources and risk assessment of dioxins and dioxin-like polychlorinated biphenyls

open access: yesFood Production, Processing and Nutrition
The aim of this research was to determine the residues of dioxins and dioxin-like polychlorinated biphenyls in cultured eel and find out the source of pollution and the distribution pattern of eels.
Hao Liu   +5 more
doaj   +1 more source

Some Mechanisms of Testicular Toxicity of Polychlorinated Biphenyls

open access: yesАнтибиотики и Химиотерапия, 2020
The effects of polychlorinated biphenyls on the reproductive system were studied on adult male rats. The results of the experiments showed that the polychlorinated biphenyls significantly decreased the number of the spermatogenesis cells and spermatozoa ...
E. F. Agletdinov
doaj  

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