Results 161 to 170 of about 735 (209)
Advanced Functional Materials, EarlyView.Bioprosthetic aortic valves have revolutionized the treatment of aortic stenosis, but their durability is limited by structural valve deterioration (SVD). This review focuses on the pericardial tissue at the heart of these valves, examining how its mechanical properties and calcification drive fatigue and failure.
Gabriele Greco +7 more
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Advanced Functional Materials, EarlyView.ABSTRACT Breathable membranes that reject chemical warfare agents (CWAs) are required for next‐generation protective apparel. A dual‐function graphene oxide (GO)‐polyamine architecture is introduced that addresses the long‐standing tradeoff between vapor transmission and CWA selectivity.
Hyungjun Kim +6 more
wiley +1 more source
, 2016 Mixed matrix membranes are prepared from zeolites and polymers, such as polyimides, in a void free fashion where either no voids or voids of less than several Angstroms are present at the interface of the polymer and the zeolite by bonding (hydrogen, ionic, or covalent) functional groups on the zeolite with functional groups on the polymer.
L. Donato, A. Garofalo, C. Algieri
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Hollow filler based mixed matrix membranes
Chemical Communications, 2010Micron-sized hollow spheres with zeolitic shell were used as inorganic fillers in PDMS-based mixed matrix membranes, overall enhancing solvent permeabilities as compared to traditional zeolite fillers, while selectivities were maintained.
Katrien, Vanherck +3 more
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Mixed matrix membrane development
Membrane Technology, 2002Abstract: Two types of mixed matrix membranes were developed by UOP in the late 1980s. The first type includes adsorbent polymers, such as silicalite‐cellulose acetate (CA), NaX‐CA, and AgX‐CA mixed matrix membranes. The silicalite‐CA has a CO2/H2 selectivity of 5.15 ± 2.2. In contrast, the CA membrane has a CO2/H2 selectivity of 0.77 ± 0.06.
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Mixed-matrix membrane adsorbers for protein separation
Journal of Chromatography A, 2003The separation of two similarly sized proteins, bovine serum albumin (BSA) and bovine hemoglobin (Hb) was carried out using a new type of ion-exchange mixed-matrix adsorber membranes. The adsorber membranes were prepared by incorporation of various types of Lewatit ion-exchange resins into an ethylene-vinyl alcohol copolymer porous structure.
Avramescu, M.E. +2 more
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Advanced Porous Materials in Mixed Matrix Membranes
Advanced Materials, 2018AbstractMembrane technology has gained great interest in industrial separation processing over the past few decades owing to its high energy efficiency, small capital investment, environmentally benign characteristics, and the continuous operation process.
Youdong Cheng +6 more
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Permeation models for mixed matrix membranes
Journal of Colloid and Interface Science, 2008Permeation models for mixed matrix membranes (MMMs) are discussed. A new model is proposed for the effective permeability of a species in MMMs. The model takes into account the presence of interfacial layer (shell) at the surface of the core filler particles.
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Activated carbon in mixed-matrix membranes
Separation & Purification Reviews, 2019Mixed matrix membranes (MMMs) have emerged as strong contenders to conventional membranes for gas and liquid separations.
Jeremy Lewis +3 more
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Perspectives on mixed matrix membranes
Journal of Membrane Science, 2011This perspective is meant to provide some background and future directions for mixed matrix membranes. It is not meant to be a complete review but an initial description that allows the reader to find appropriate articles on various aspects of this topic and develop a better understanding so that they can pursue this topic with the information needed ...
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