Results 71 to 80 of about 14,225,696 (298)

Preparation and Performance Analysis of High Performance Cathode Material Graphene-Mesoporous Carbon Composites for Lithium-Ion Capacitor

open access: yes发电技术
ObjectivesThe lithium-ion capacitor (LIC) composite cathode materials with both high mass activity and high volume activity were designed.MethodsBy scanning electron microscope, transmission electron microscope, Kanta fully automatic specific surface and
HAN Xiuxiun   +4 more
doaj   +1 more source

Imaging the surface potential at the steps on the rutile TiO2(110) surface by Kelvin probe force microscopy

open access: yesBeilstein Journal of Nanotechnology, 2019
Although step structures have generally been considered to be active sites, their role on a TiO2 surface in catalytic reactions is poorly understood. In this study, we measured the contact potential difference around the steps on a rutile TiO2(110)-(1 ...
Masato Miyazaki   +7 more
doaj   +1 more source

Contact transformations for difference schemes

open access: yes, 2011
""We define a class of transformations of the dependent and independent variables in an ordinary difference scheme. The transformations leave the solution set of the system invariant and reduces to a group of contact transformations in the continuous ...
Winternitz P.   +7 more
core   +1 more source

Reconstructing enzyme evolution by protein engineering

open access: yesFEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler   +2 more
wiley   +1 more source

Determination of Contact Potential Difference by the Kelvin Probe (Part I) I. Basic Principles of Measurements

open access: yes, 2016
Determination of electric potential difference using the Kelvin probe, i.e. vibrating capacitor technique, is one of the most sensitive measuring procedures in surface physics.
M. Rutkis   +3 more
core   +1 more source

Contact allergy to gold in patients with gold-plated intracoronary stents

open access: yes, 2005
An increasingly common and effective method for the treatment of atherosclerotic disease in the coronary arteries is percutaneous transluminal coronary angioplasty (PTCA) and stenting. The stents are made of different metals.
Svedman, Cecilia,   +6 more
core   +2 more sources

Conserved binding mode but diverse interfaces of MreC‐PBP2 interactions

open access: yesFEBS Letters, EarlyView.
The crystal structure of abMreC reveals a conserved two β‐barrel architecture and provides structural insights into its role within the bacterial elongasome. The abMreC–abPBP2 complex model identifies the molecular basis of MreC‐mediated PBP2 recognition, contributing to the regulation of peptidoglycan synthesis.
Hyunseok Jang   +4 more
wiley   +1 more source

Microbiome‐blood–brain barrier interactions in aging — mechanisms and therapeutic potential

open access: yesFEBS Letters, EarlyView.
Aging reshapes the gut microbiome (↓SCFA‐producing commensals; ↑pro‐inflammatory outputs), shifting circulating metabolites (↓SCFAs; ↑LPS, ↑TMAO, ↑PAA) that act at the BBB to increase nonspecific transcytosis, alter transport, and promote astrocyte reactivity, heightening brain vulnerability.
Daniel Cuervo‐Zanatta   +3 more
wiley   +1 more source

The relationship between contact resistance and contact force on Au coated carbon nanotube surfaces [PDF]

open access: yes, 2007
Carbon-Nanotube (CNT) coated surfaces are investigated to determine the electrical contact performance under low force conditions. The surfaces under investigation are multi-walled CNTs formed on a Silicon substrate and coated with an Au film.
J.W. McBride   +5 more
core   +1 more source

Structure‐forward targeting of claudins with synthetic binders

open access: yesFEBS Letters, EarlyView.
Claudins form the paracellular barriers between epithelial and endothelial tissues at tight junctions and are targets for molecular binders with the goal of modulating barrier permeability. Claudin‐binding molecules are relevant in drug delivery or in altering claudin interactions with disease‐causing proteins.
Alex J. Vecchio
wiley   +1 more source

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