| Арабские страны обнародовали список требований к Катару
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 Арабские страны, объявившие ранее блокаду Государству Катар, обнародовали список требований к этой стране. Об этом со ссылкой на Emirates News Agency сообщает "РБК-Украина". "Накануне стало известно, что Саудовская Аравия, ОАЭ, Бахрейн и Египет сократили список требований для Катара и призвали выполнить их без обозначения конкретных сроков", - говорится в сообщении. Согласно информации издания, дипломаты арабских стран заявили о том, что любое посредничество в кризисе вокруг Катара должно основываться на списке из 6 требований, которые одобрили главы МИД арабских стран на встрече в Каире. Так, список включает в себя "необходимость придерживаться борьбы с экстремизмом и терроризмом, отказ от подстрекательства и призывов к нетерпимости и насилию, соглашений 2013 и 2014 годов и итогов арабо-американского саммита в Эр-Рияде в мае 2017 года". Кроме того, в список включили "отказ от вмешательства во внутренние дела и поддержки незаконных формирований" и "принцип ответственности всех стран международного ...
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| GVS Acquires Kuss Filtration
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 GVS S.p.A, a leading microfiltration company, announced today that it has entered into an agreement to acquire Kuss Filtration Inc. ("Kuss"), from Industrial Opportunity Partners ("IOP"), an operations-focused private equity firm.
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| Tailored band gaps in sulphur and nitrogen containing porous donor-acceptor polymers (SNPs)
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| Donor-acceptor dyads hold the key to tuning of electrochemical properties and enhanced mobility of charge carriers, yet their incorporation into a heterogeneous polymer network proves difficulty due to the fundamentally different chemistry of the donor- and acceptor-subunits. We present a family of sulphur and nitrogen containing porous polymers (SNPs) that are obtained via Sonogashira-Hagihara cross-coupling and that combine electron-withdrawing triazine (C3N3) and electron donating, sulphur-containing linkers. Choice of building blocks and synthetic conditions determines the optical band gap (from 1.67 to 2.58 eV) and nanoscale ordering of these microporous materials with BET surface areas of up to 545 m2 g-1 and CO2 capacities up to 1.56 mmol g-1. Our results highlight the advantages of the modular design of SNPs, and we report one of the highest photocatalytic hydrogen evolution rates for a cross-linked polymer without Pt co-catalyst (194 µmol h-1 g-1).
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| Tuning the Effects of Bacterial Membrane Permeability through Photo-Isomerization of Antimicrobial Cationic Amphiphiles
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| Several last resort classes of antimicrobial drugs act by permeabilizing cell membranes. Here we demonstrate that insertion of a photo-isomerizable lipid into antimicrobial cationic amphiphiles can modify the intensity of their membrane-permeabilizing activity not only by their concentration but also through light-irradiation. We characterized the photo-isomerization effects of two types of cationic amphiphiles on their bacterial membrane permeabilizing activity and showed that while one photo-isomer inhibited cell growth and division, the other photo-isomer led to a rapid and lethal bacterial membrane-disrupting effect. We demonstrated that the switch from "on" to "off" can be obtained by either the cis- or trans-isomer depending on the bacterial strain and the type of cationic head-group of these membrane disruptors. These photo-isomerizable cationic amphiphiles offer a novel tool for research and industrial applications that require light-controlled membrane permeabilization.
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| Crown's net sales increase in Q2
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| American packaging company Crown has reported net sales of $2.16bn for the second quarter of 2017, compared to $2.14bn for the same period in 2016.
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