Results 21 to 30 of about 173,298,982 (259)

Charge self-regulation in 1T'''-MoS2 structure with rich S vacancies for enhanced hydrogen evolution activity

open access: yesNature Communications, 2022
Metal chalcogenides have shown promising performances for renewable hydrogen evolution and such activities are sensitive to the material electronic structures.
Xiaowei Guo   +8 more
doaj   +1 more source

Manganese-Implanted Titanium Modulates the Crosstalk between Bone Marrow Mesenchymal Stem Cells and Macrophages to Improve Osteogenesis

open access: yesJournal of Functional Biomaterials, 2023
Manganese (Mn) is an essential micronutrient in various physiological processes, but its functions in bone metabolism remain undefined. This is partly due to the interplay between immune and bone cells because Mn plays a central role in the immune system.
Kuicai Ye   +5 more
doaj   +1 more source

Nitrogen‐doped hierarchical few‐layered porous carbon for efficient electrochemical energy storage

open access: yesCarbon Energy, 2021
Large surface area, high conductivity, and rich active site of carbon electrode materials are necessary characteristics for energy storage devices.
Peng Wang   +5 more
doaj   +1 more source

In Situ Transmission Electron Microscopy Heating Studies of Particle Coalescence and Microstructure Evolution in Nanosized Ceramics [PDF]

open access: yes, 2006
Final report on in-situ transmission microscopy heating studies of particle coalescence and microstructure evolution in nanosized ceramics. Report includes summary of work on particle shape changes and stress effects, and novel infiltration techniques in

core   +1 more source

Non-destructive characterisation of structural ceramics using impedance spectroscopy [PDF]

open access: yes, 2001
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.The aim of this project was to explore the potential applications of impedance spectroscopy (IS) in the non-destructive characterisation of structural ...
Wang, Xin
core   +5 more sources

Cells‐Micropatterning Biomaterials for Immune Activation and Bone Regeneration

open access: yesAdvanced Science, 2022
Natural tissues are composed of ordered architectural organizations of multiple tissue cells. The spatial distribution of cells is crucial for directing cellular behavior and maintaining tissue homeostasis and function.
Bingjun Zhang   +8 more
doaj   +1 more source

Effect of the microstructure on the lifetime of dental ceramics [PDF]

open access: yesDental Materials, 2011
To evaluate the effect of the microstructure on the Weibull and slow crack growth (SCG) parameters and on the lifetime of three ceramics used as framework materials for fixed partial dentures (FPDs) (YZ - Vita In-Ceram YZ; IZ - Vita In-Ceram Zirconia; AL - Vita In-Ceram AL) and of two veneering porcelains (VM7 and VM9).Bar-shaped specimens were ...
Borba, M.; id_orcid 0000-0001-7587-9839   +6 more
openaire   +3 more sources

Adsorption and release of BMP-2 on nanocrystalline apatite-coated and uncoated hydroxyapatite/b-tricalcium phosphate porous ceramics [PDF]

open access: yes, 2009
The association of bone morphogenetic proteins (BMPs) with calcium phosphate bioceramics is known to confer them osteoinductive properties. The aim of this study was to evaluate the surface properties, especially regarding recombinant human BMP-2 (rhBMP-
Christèle Combes   +19 more
core   +1 more source

Sealing the Pores of PEO Coating with Mg-Al Layered Double Hydroxide: Enhanced Corrosion Resistance, Cytocompatibility and Drug Delivery Ability

open access: yesScientific Reports, 2017
In recent years, magnesium (Mg) alloys show a promising application in clinic as degradable biomaterials. Nevertheless, the poor corrosion resistance of Mg alloys is the main obstacle to their clinical application.
Feng Peng   +5 more
doaj   +1 more source

Microstructure and electrical properties of Y(NO3)3·6H2O-doped ZnO-Bi2O3-based varistor ceramics

open access: yes, 2011
Y(NO3)3·6H2O-doped ZnO-Bi2O3-based varistor ceramics were prepared using a solid reaction route. The microstructure, electrical properties, degradation coefficient(DV), and dielectric characteristics of varistor ceramics were studied in this paper.
Xu, D.(frank@ujs.edu.cn)   +10 more
core   +1 more source

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