Results 61 to 70 of about 32,766 (261)

Preparation of Copper-Doped Zinc Oxide (CZO) Nanoparticles and CZO/Acrylic Copolymer Emulsion with Polyvinylpyrrolidone (PVP) Coated on Glass Substrate for Optical Properties

open access: yesCoatings
This study investigated the effect of copper (Cu) doping content on zinc oxide with varied weight percentages and the dispersion of Cu-doped ZnO (CZO) by adding polyvinylpyrrolidone (PVP), coated on a glass substrate, through a physical assessment and ...
Pimpaka Putthithanas   +6 more
semanticscholar   +1 more source

Auto-assemblies of Alpha-Cyclodextrin and Grafted Polysaccharides: Crystal Structure and Specific Properties of the Platelets

open access: yes, 2018
Cyclodextrins (CD) are a family of oligosaccharides with a toroid shape, which exhibit a remarkable ability to include guest molecules in their internal cavity providing a hydrophobic environment for poorly soluble molecules.
Bouchemal, Kawthar   +5 more
core   +1 more source

Multiscale Structuring of Hydroxyapatite via Two‐Photon Lithography of Nanocomposites

open access: yesAdvanced Functional Materials, EarlyView.
Hydroxyapatite scaffolds are of great interest in bone tissue engineering applications, ranging from 3D cell culture to regenerative medicine. Using two‐photon lithography of a transparent nanocomposite, hydroxyapatite microstructures with features ranging from submicron to centimeter‐scale are fabricated. This allows to mimic the natural bone geometry,
Leonhard Hambitzer   +6 more
wiley   +1 more source

Elucidating Supercrystal Mechanics and Nanoparticle Size and Shape Effects under High Pressure

open access: yesSmall Structures
Supercrystals, extended lattices of closely packed nanoparticles (NPs), present exciting possibilities for various applications. Under high pressures, typically in the gigapascal (GPa) range, supercrystals undergo significant structural changes ...
Claire Hotton   +14 more
doaj   +1 more source

Effect of Isopropyl Peptization on Surface Particle Growth of Sol-Gel Derived Anatase: X-ray Crystallographic Analysis and Revealed on Transmission Electron Microscopy

open access: yesSouth African Journal of Chemical Engineering
Titanium isopropoxide (TTIP) mediated, a unique, simple, unparalleled technique was utilized to produce a highly crystalline anatase. The crystallographic parameters were investigated by X-ray diffraction (XRD) and transmission electron microscopy (TEM ...
Md. Tarikul Islam   +8 more
doaj   +1 more source

Ultrafast Acousto-Plasmonics in Gold Nanoparticles Superlattice

open access: yes, 2015
We report the investigation of the generation and detection of GHz coherent acoustic phonons in plasmonic gold nanoparticles superlattices (NPS). The experiments have been performed from an optical femtosecond pump-probe scheme across the optical plasmon
Ayouch, A.   +7 more
core   +1 more source

Auto‐Generated Valence States in Electrocatalysts for Boosting Oxygen and Hydrogen Evolution Kinetics in Alkaline Water/Alkaline Seawater/Simulated Seawater/Natural Seawater

open access: yesAdvanced Functional Materials, EarlyView.
This review systematically highlights the latest achievements in mixed‐valence states relevant to hydrogen and oxygen evolution reactions, providing essential insights into future directions and methods for large‐scale practical implementation. This critical review is expected to provide an overview of recent advancements in diverse valence‐state metal
Jitendra N. Tiwari   +4 more
wiley   +1 more source

Structure of nanoparticles embedded in micellar polycrystals

open access: yes, 2012
We investigate by scattering techniques the structure of water-based soft composite materials comprising a crystal made of Pluronic block-copolymer micelles arranged in a face-centered cubic lattice and a small amount (at most 2% by volume) of silica ...
Alexandridis P.   +47 more
core   +3 more sources

Ceramic Particle‐Reinforced Medium‐Entropy Alloys With Outstanding Mechanical Properties Prepared by Novel Micro‐LPBF

open access: yesAdvanced Functional Materials, EarlyView.
An innovative medium entropy alloy (MEA) composite material was fabricated via micro laser powder bed fusion (μ‐LPBF) with appropriate nano‐ceramic particles doping and exhibited markedly improved overall performance, including synergistically enhanced strength and ductility, increased hardness and compressive strength, improved wear resistance and ...
Zhonglin Shen, Mingwang Fu
wiley   +1 more source

The demagnetization factor for randomly packed spheroidal particles

open access: yes, 2019
We investigate if the demagnetization factor for a randomly packed powder of magnetic spheroidal particles depend on the shape of the spheroidal particles and what the internal variation in magnetization is within such a powder.
Bjørk, R., Zhou, Z.
core   +1 more source

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