نتایج جستجو برای: hydrophobic polytetrafluoroethylene membrane

تعداد نتایج: 417549  

Arnab Bagchi, Biplab Kumar Dey

      Losartan potassium is a well known orally active non-peptide angiotensin II receptor antagonist. Losartan potassium and its principle active metabolites block the vasoconstrictor and aldosterone secreting effect of angiotensin II by selectively blocking the binding of angiotensin II to AT1 receptors. The drug is reported to promote the decrease in ventricular hypertrophy, salt ...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2017
Wilton T Snead Carl C Hayden Avinash K Gadok Chi Zhao Eileen M Lafer Padmini Rangamani Jeanne C Stachowiak

Membrane fission, which facilitates compartmentalization of biological processes into discrete, membrane-bound volumes, is essential for cellular life. Proteins with specific structural features including constricting rings, helical scaffolds, and hydrophobic membrane insertions are thought to be the primary drivers of fission. In contrast, here we report a mechanism of fission that is independ...

2012
Yanni Hu Mei Tian Hong Zhang

Membrane distillation is a thermally driven membrane process for seawater desalination and purification at moderate temperatures and pressures. A hydrophobic micro-porous membrane is used in this process, which separates hot and cold water, allowing water vapor to pass through; while restricting the movement of liquid water, due to its hydrophobic nature. This paper provides an experimental inv...

Journal: :Chemical communications 2016
J Amici M Alidoost C Francia S Bodoardo S Martinez Crespiera D Amantia M Biasizzo F Caldera F Trotta

A novel oxygen selective highly hydrophobic membrane is prepared by non-solvent induced phase separation in which a dextrin-based nanosponge is incorporated into a poly(vinylidene fluoride co-hexafluoropropylene) (PVDF-HFP) matrix. The membrane presents high capability to entrap moisture from air as well as good hydrophobic behaviour. The membrane was assembled in a pouch type Li-air cell, whic...

Journal: :Trends in cell biology 1993
U Kutay E Hartmann T A Rapoport

Integral membrane proteins are generally targeted to translocation-competent membranes by virtue of signal sequences located close to the N-terminus of the polypeptide chain. Membrane anchoring is caused by the signal sequence or other hydrophobic segments located after it in the amino acid sequence. However, some integral membrane proteins do not follow these rules. The members of one class of...

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