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Polydimethylsiloxane (PDMS), also known as dimethylpolysiloxane or dimethicone, is a silicone polymer with a wide variety of uses, from cosmetics to industrial lubrication and passive daytime radiative cooling. [1] [2] [3] PDMS is particularly known for its unusual rheological (or flow) properties.
Polydimethylsiloxane is a prevalent siloxane. In organosilicon chemistry, a siloxane is an organic compound containing a functional group of two silicon atoms bound to an oxygen atom: Si−O−Si. The parent siloxanes include the oligomeric and polymeric hydrides with the formulae H[OSiH 2] n OH and [OSiH 2] n. [1]
The efficacy and safety of the drug for registered indications is continuously monitored as part of routine pharmacovigilance according to Eurasian Union and European Union (GVP) requirements. [33] [34] The results of randomized clinical trials, including double-blind placebo-controlled trials, in Russia, the CIS, Europe, etc., are evaluated.
Polydimethylsiloxane is a widely used antifoaming agent. Silicone-based defoamers are also suitable in non-aqueous foaming systems like crude oil and oil refining. For very demanding applications fluorosilicones may be suitable. EO/PO-based defoamers contain polyethylene glycol and polypropylene glycol copolymers.
In early 2023, the U.S. Food and Drug Administration (FDA) granted accelerated approval to a new Alzheimer’s drug called Leqembi. (Biogen, a biotechnology company, and Eisai, a pharmaceutical ...
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The Food and Drug Administration's new rules on "healthy" food labels are voluntary and are scheduled to take effect at the end of February. Which foods are considered 'healthy?' FDA issues new ...
Medical grade silicones are silicones tested for biocompatibility and are appropriate to be used for medical applications. [1] In the United States, the Food and Drug Administration (FDA) Center for Devices and Radiological Health (CDRH) regulates devices implanted into the body.