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Kanazawa University research: Solvent effects of siloxanes on donor-acceptor interactions

Kanazawa University research: Solvent effects of siloxanes on donor-acceptor interactions KANAZAWA, Japan, May 11, 2021 /PRNewswire/ Researchers at Kanazawa University report in Chemical Communications how solvents influence the strength of donor-acceptor interactions. They found that silicone solvents, providing low compatibility, intensify donor-acceptor interactions between aromatic molecules compared to hydrocarbon solvents. Aromatic donor-acceptor (D-A) interactions are a type of non-covalent bond between a donor (electron-rich) and an acceptor (electron-deficient) aromatic molecules. Aromatic molecules feature one or more rings with delocalized electrons. The aromatic D-A interactions are widely used for building supramolecular structures, which are assembly of molecules formed by non-covalent bonds like building blocks. The supramolecular structures have smart properties such as external stimuli-responsiveness and self-repairing. The stability and smart properties of

Kanazawa University research: Bacteria in heat--high temperatures facilitate fermentation

Share this article KANAZAWA, Japan, April 27, 2021 /PRNewswire/ In a study published in Applied Microbiology and Biotechnology biologists at Kanazawa University report an increase in the synthesis of fermentation products in bacteria at high reaction temperatures. Mankind has long relied on fermentation the metabolic processes within microorganisms to procure useful compounds such as lactic acid (found in yogurt and kimchi) and ethanol (present in that daily glass of wine). Corynebacterium glutamicum is a bacterium used for industrial scale production of lactic acid and succinic acid, which can be used as bio-based plastic monomers. To-date, fermentation in C. glutamicum is conducted at temperatures of ~30°C, wherein the bacterium can grow comfortably. Now, Hikaru Mizuno and Yota Tsuge from Kanazawa University show that the production efficiency of some fermentation products can instead be magnified by simply increasing the reaction temperature above growth thresholds.

Kanazawa University research: Leg muscle action assists blood flow independently of age

Kanazawa University research: Leg muscle action assists blood flow independently of age KANAZAWA, Japan, April 27, 2021 /PRNewswire/ Researchers at Kanazawa University report in the Japan Journal of Nursing Science; a study of muscle pump action in the context of chronic lower-limb edema. They found that body posture and exercise habits affect the blood pumping action of muscles in the leg, whereas age generally does not. Chronic lower-limb edema (CLE) - the permanent accumulation of fluid in the leg - often occurs in elderly people. The condition leads to various physical and mental problems, including difficulty in walking or moving, fatigue and anxiety. One cause of CLE is the lack of physical activity, which is associated with a decrease in muscle pump action. The latter refers to the leg muscle s acting as a blood pump: when contracted, the muscle squeezes veins together, forcing blood to flow. The question whether muscle pump action systematically changes with age has not b

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