Results 11 to 20 of about 7,291 (192)

Systematic comparison of unilamellar vesicles reveals that archaeal core lipid membranes are more permeable than bacterial membranes.

PLoS Biology, 2023
One of the deepest branches in the tree of life separates the Archaea from the Bacteria. These prokaryotic groups have distinct cellular systems including fundamentally different phospholipid membrane bilayers.
Urszula Łapińska, Georgina Glover, Zehra Kahveci, Nicholas A T Irwin, David S Milner, Maxime Tourte, Sonja-Verena Albers, Alyson E Santoro, Thomas A Richards, Stefano Pagliara   +9 more
doaj   +1 more source

Phenylalanine Increases Membrane Permeability [PDF]

Journal of the American Chemical Society, 2017
Biological membranes are a crucial aspect of living systems, controlling the organization and distribution of different chemical components. Control of membrane permeability is especially important for processes such as electron transport in metabolism and signal propagation in nerve cells.
Russell Perkins, Veronica Vaida
openaire   +2 more sources

Grafting of Heparin on Blend Membrane of Citric Acid Crosslinked Chitosan/Polyethylene Glycol-Poly Vinyl Alcohol (PVA-PEG)

Indonesian Journal of Chemistry, 2019
Heparin, an active sulfate group material, grafted onto blend membrane citric acid cross-linked chitosan/poly (vinyl alcohol)-poly(ethylene glycol) (PVA-PEG) to improve the membrane properties.
Retno Ariadi Lusiana, Ginanjar Argo Pambudi, Fitra Nilla Sari, Didik Setiyo Widodo, Khabibi Khabibi, Sri Isdadiyanto   +5 more
doaj   +1 more source

Bax and Bak function as the outer membrane component of the mitochondrial permeability pore in regulating necrotic cell death in mice

eLife, 2013
A critical event in ischemia-based cell death is the opening of the mitochondrial permeability transition pore (MPTP). However, the molecular identity of the components of the MPTP remains unknown.
Jason Karch, Jennifer Q Kwong, Adam R Burr, Michelle A Sargent, John W Elrod, Pablo M Peixoto, Sonia Martinez-Caballero, Hanna Osinska, Emily H-Y Cheng, Jeffrey Robbins, Kathleen W Kinnally, Jeffery D Molkentin   +11 more
doaj   +1 more source

Light controls edge functional groups to enhance membrane permeability

Frontiers in Physics, 2023
Functionalized membranes have high potential value in a broad range of practical applications, and the functional groups at the membrane edge play a vital role in the permeability of the membranes. Here, based on an edge-functionalized graphene oxide (GO)
Tingyu Sun, Lei Wang, Rengkai Hu, Yangmei Li, Zhi Zhu   +4 more
doaj   +1 more source

The influence of naphthenic acids and their fractions onto cell membrane permeability [PDF]

Journal of the Serbian Chemical Society, 2015
The influence of naphthenic acids (NAs) mixture and their narrow fractions (called NA pH 4, pH 8 and pH 10) onto permeability of beetroot cell membrane is examined.
Pavlović Ksenija, Grbović Ljubica, Vasiljević Bojana, Župunski Andrea, Putnik-Delić Marina, Maksimović Ivana, Kevrešan Slavko   +6 more
doaj   +1 more source

Implementation of Spiegler–Kedem and Steric Hindrance Pore Models for Analyzing Nanofiltration Membrane Performance for Smart Water Production

Membranes, 2018
A predictive model correlating the parameters in the mass transfer-based model Spiegler–Kedem to the pure water permeability is presented in this research, which helps to select porous polyamide membranes for enhanced oil recovery (EOR ...
Remya R. Nair, Evgenia Protasova, Skule Strand, Torleiv Bilstad   +3 more
doaj   +1 more source

High membrane permeability for melatonin [PDF]

Journal of General Physiology, 2015
The pineal gland, an endocrine organ in the brain, synthesizes and secretes the circulating night hormone melatonin throughout the night. The literature states that this hormone is secreted by simple diffusion across the pinealocyte plasma membrane, but a direct quantitative measurement of membrane permeability has not been made.
Yu, Haijie, Dickson, Eamonn J, Jung, Seung-Ryoung, Koh, Duk-Su, Hille, Bertil   +4 more
openaire   +5 more sources

Effect of montmorillonite on PEBAX® 1074-based mixed matrix membranes to be used in humidifiers in proton exchange membrane fuel cells

e-Polymers, 2020
To meet the increasing requirements of membrane humidification in proton exchange membrane fuel cells (PEMFCs), a series of montmorillonite (MMT)/PEBAX® 1074 mixed matrix membranes (MMMs) were fabricated ...
Li Weiye, Chang Zhihong, Lin Liming, Xu Xiaoyan   +3 more
doaj   +1 more source

Analysis of Antimicrobial-Triggered Membrane Depolarisation Using Voltage Sensitive Dyes

Frontiers in Cell and Developmental Biology, 2016
The bacterial cytoplasmic membrane is a major inhibitory target for antimicrobial compounds. Commonly, although not exclusively, these compounds unfold their antimicrobial activity by disrupting the essential barrier function of the cell membrane.
J. Derk te Winkel, Declan A. Gray, Kenneth H. Seistrup, Leendert W. Hamoen, Henrik eStrahl   +4 more
doaj   +1 more source