Results 51 to 60 of about 2,001,036 (304)

Structural and biochemical analysis of a B12 superbinder

open access: yesFEBS Letters, EarlyView.
BtuG proteins are vitamin B12 scavengers in Bacteroides thetaiotaomicron, a dominant human gut bacterium. We present crystal structures of three BtuG homologs bound to cobalamin and its precursor cobinamide, revealing picomolar binding affinities, among the highest known for any natural protein.
Jose M. Martinez Felices   +3 more
wiley   +1 more source

How Does Carbon Dioxide Permeate Cell Membranes?A discussion of concepts, results and methods.

open access: yesFrontiers in Physiology, 2014
We review briefly how the thinking about the permeation of gases, especially CO2, across cell and artificial lipid membranes has evolved during the last hundred years.
Volker eEndeward   +3 more
doaj   +1 more source

Rational ion transport management mediated through membrane structures

open access: yesExploration, 2021
Unique membrane structures endow membranes with controlled ion transport properties in both biological and artificial systems, and they have shown broad application prospects from industrial production to biological interfaces.
Yupeng Chen   +3 more
doaj   +1 more source

Prospecting the protein design landscape

open access: yesFEBS Letters, EarlyView.
This review outlines the current state of various protein design approaches. We discuss the current possibilities enabled by recently released tools, highlight future avenues to pursue in protein design, and underscore the crucial role of key databases and resources for successful protein design workflows.
Jakob R. Riccabona   +4 more
wiley   +1 more source

Validating Membrane Ageing Protocols: A Real‐World Perspective on Vanadium Redox Flow Battery Degradation

open access: yesChemElectroChem
Membranes are essential for an efficient and stable long‐term operation of the vanadium redox flow battery (VRFB). Membrane degradation is one of the main limiting factors for VRFB lifetime because of the resulting increase in electrolyte crossover and ...
Felix Lulay   +4 more
doaj   +1 more source

A Compact Optical Instrument with Artificial Neural Network for pH Determination

open access: yesSensors, 2012
The aim of this work was the determination of pH with a sensor array-based optical portable instrument. This sensor array consists of eleven membranes with selective colour changes at different pH intervals.
Luis Fermin Capitán-Vallvey   +7 more
doaj   +1 more source

Preparation of artificial plasma membrane mimicking vesicles with lipid asymmetry. [PDF]

open access: yesPLoS ONE, 2014
Lipid asymmetry, the difference in lipid distribution across the lipid bilayer, is one of the most important features of eukaryotic cellular membranes.
Qingqing Lin, Erwin London
doaj   +1 more source

Identifying and Manipulating Giant Vesicles: Review of Recent Approaches

open access: yesMicromachines, 2022
Giant vesicles (GVs) are closed bilayer membranes that primarily comprise amphiphiles with diameters of more than 1 μm. Compared with regular vesicles (several tens of nanometers in size), GVs are of greater scientific interest as model cell membranes ...
Taro Toyota, Yiting Zhang
doaj   +1 more source

Wrinkling of Dielectric Elastomer Membranes [PDF]

open access: yes, 2009
Wrinkling of thin membranes due to different in-plane loading and boundary conditions has drawn attention of researchers in structural engineering since the development of thin webs for early aircraft structures.
Zheng, Ling
core   +1 more source

Artificial molecular machines and motors—Design and control of nanoscale motion

open access: yesFEBS Letters, EarlyView.
Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley   +1 more source

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