نتایج جستجو برای: membrane engineering

تعداد نتایج: 647699  

Journal: :Natural Science 2022

Based on the potassium channel “origami windmill” model, and conservation law of cell membrane area ion inequality equation based Maxwell’s electromagnetic theory, it is theoretically proved that neurons can generate waves. The wave an energy wave, never disappear. Neurons are equivalent to engineering antennas, information between be transmitted through material basis for waves result exchange...

Journal: :Physics of Fluids 2021

Thin-film evaporation from nanoporous membranes is a promising cooling technology employed for the thermal management of modern electronic devices. We propose an effective one-dimensional analytical approach that can accurately predict temperature and density jump relations, rates, arbitrary membrane configurations. This accomplished through specification coefficient encompasses influence diffe...

2017
Imke A. B. Pijpers Loai K. E. A. Abdelmohsen David S. Williams Jan C. M. van Hest

Biodegradable nanoarchitectures, with well-defined morphological features, are of great importance for nanomedical research; however, understanding (and thereby engineering) their formation is a substantial challenge. Herein, we uncover the supramolecular potential of PEG-PDLLA copolymers by exploring the physicochemical determinants that result in the transformation of spherical polymersomes i...

2013
Ali Alshehri Rajab Khalilpour Ali Abbas Zhiping Lai

This study proposes a strategy for optimal design of hollow fiber membrane networks for post combustion carbon capture from power plant multicomponent flue gas. A mathematical model describing multicomponent gas permeation through a separation membrane was customized into the flowsheet modeling package ASPEN PLUS. An N-stage membrane network superstructure was defined considering all possible f...

2013
Sauro Pierucci Jiří J. Klemeš Paola Bernardo Gabriele Clarizia

Membrane technology applied to the separation of gaseous mixtures competes with conventional unit operations (e.g., distillation, absorption, adsorption) on the basis of overall economics, safety, environmental and technical aspects. Since the first industrial installations for hydrogen separation in the early eighties, significant improvements in membrane quality have been achieved in air sepa...

2016
William P Clafshenkel Hironobu Murata Jill Andersen Yehuda Creeger Richard R Koepsel Alan J Russell

Erythrocytes have been described as advantageous drug delivery vehicles. In order to ensure an adequate circulation half-life, erythrocytes may benefit from protective enhancements that maintain membrane integrity and neutralize oxidative damage of membrane proteins that otherwise facilitate their premature clearance from circulation. Surface modification of erythrocytes using rationally design...

2017
Liu Wang Shutao Qiao Shideh Kabiri Ameri Hyoyoung Jeong Nanshu Lu

Nanshu Lu Department of Aerospace Engineering and Engineering Mechanics, Center for Mechanics of Solids, Structures and Materials, The University of Texas at Austin, 210 E. 24th Street, Austin, TX 78712; Department of Electrical and Computer Engineering, The University of Texas at Austin, Austin, TX 78712; Department of Biomedical Engineering, The University of Texas at Austin, Austin, TX 78712...

Journal: :BioTechniques 2017
Lawrence J Liew Richard M Day Rodney J Dilley

Tissue engineering approaches using growth factors and various materials for repairing chronic perforations of the tympanic membrane are being developed, but there are surprisingly few relevant tissue culture models available to test new treatments. Here, we present a simple three-dimensional model system based on micro-dissecting the rat tympanic membrane umbo and grafting it into the membrane...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2008
Min Chen Syma Khalid Mark S P Sansom Hagan Bayley

Bacterial outer membrane porins have a robust beta-barrel structure and therefore show potential for use as stochastic sensors based on single-molecule detection. The monomeric porin OmpG is especially attractive compared with multisubunit proteins because appropriate modifications of the pore can be easily achieved by mutagenesis. However, the gating of OmpG causes transient current blockades ...

Journal: :journal of membrane science and research 0
zabih a. tarsa chemical engineering department, mahshahr branch, islamic azad university, mahshahr, iran s. ali asghar hedayat chemical engineering department, mahshahr branch, islamic azad university, mahshahr, iran masoud rahbari-sisakht chemical engineering department, gachsaran branch, islamic azad university, gachsaran, iran

in this research, process asymmetric polyetherimide hollow fiber membranes using ethanol (0, 2 and 4 wt%) as non-solvent additive in the polymer dope via phase inversion method were fabricated. aqueous solution of 1-methyl-2-pyrrolidine (nmp) (90%) was applied as a bore fluid to avoid inner skin layer formation and water was used as the external coagulant. the morphology of fabricated membranes...

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