نتایج جستجو برای: cell membrane transport
تعداد نتایج: 2120962 فیلتر نتایج به سال:
In this paper, a three-dimensional, single-phase proton-exchange membrane fuel cell (PEMFC) is studied numerically. Finite volume method was used for solving the governing equations and, consequently, the numerical results were validated by comparing them with experimental data, which showed good agreement. The main objective of this work is to investigate the effect of a novel gas channel shap...
BACKGROUND Nuclear transcriptome initiates specific proteome that facilitates metabolic events culminating in restitution of cell components and reproduction of the discrete cellular function, but the magnitude of various genes induction and following proteomic, lipidomic, and glycomic processes provide distinctness to the final product and its function. In homeostasis, the challenged cell resp...
mitochondrial functions have a major impact on t-cell functionality. in this study we characterized whether mitochondrial function in the neonatal t-cells differs from that in the adult t-cells during short t-cell activation. methods: we used fow cytometry methods to test mitochondrial mass and to monitor mitochondrial ca2+ levels, mitochondrial potential and superoxide generation in parallel w...
Caveolae are specialized compartments of the plasma membrane that are involved in signaling, endocytosis, and cholesterol transport. Their formation requires the transport of caveolin-1 to the plasma membrane, but the molecular mechanisms regulating the transport are largely unknown. Here, we identify a critical role for adhesion-mediated signaling through β1 integrins and integrin-linked kinas...
Nanocomposite cation exchange membranes (CEMs) were prepared by adding various amounts of functionalized silica-coated magnetite nanoparticles to the sulfonated polyethersulfone (sPES) polymeric matrix. The particles were synthesized first by the co-precipitation method (M0). Different surface modifications were then carried out on them by grafting three functional groups of mercaptopropyl, pro...
This communication demonstrates the relevance of membrane sealing in a test cell to its performance. Membranes need to be sealed, and therefore a more or less signifcant (depending on the test cell design) peripheral part of the membrane is supported directly by the cell body (instead of a permeate spacer). Although it may seem that there should be no fltration through ...
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