Results 21 to 30 of about 12,558 (259)

Room Temperature Fabrication of Stable, Strongly Luminescent Dion–Jacobson Tin Bromide Perovskite Microcrystals Achieved through Use of Primary Alcohols

open access: yesNanomaterials, 2021
Lead-free two-dimensional metal halide perovskites have recently emerged as promising light-emitting materials due to their improved stability and attractive optical properties.
Jinsong Qi   +4 more
doaj   +1 more source

Microcrystal manipulation with laser tweezers [PDF]

open access: yesActa Crystallographica Section D Biological Crystallography, 2013
X-ray crystallography is the method of choice to deduce atomic resolution structural information from macromolecules. In recent years, significant investments in structural genomics initiatives have been undertaken to automate all steps in X-ray crystallography from protein expression to structure solution.
Wagner, Armin   +3 more
openaire   +2 more sources

Enteric Entry of Microcrystals.

open access: yesExperimental Biology and Medicine, 1965
SummaryMicron- and submicron-sized crystals of tricalcium phosphate, of sand and of barium sulfate ingested by rats entered the intestinal epithelium. They then were distributed and deposited in various organs where tricalcium phosphate and sand incited inflammation and granulomas.
H A, Reimann, J E, Imbriglia, T, Ducanes
openaire   +2 more sources

Thermodynamic metal melting bases. Foundry production and metallurgy

open access: yesЛитьë и металлургия, 2020
Based on thermodynamic calculations, it is shown that metal melting is an equilibrium process that occurs at a constant temperature. In melting, microcrystals mainly disintegrate into nanocrystals.
E. I. Marukovich, V. Yu. Stetsenko
doaj   +1 more source

Geometry modulated upconversion photoluminescence of individual NaYF4: Yb3+, Er3+ microcrystals

open access: yesAIP Advances, 2017
Upconversion (UC) photoluminescence (PL) properties of individual β-NaYF4: Yb3+, Er3+ microcrystals are investigated on their crystal orientation and size by a confocal micro-photoluminescence (μ-PL) system.
Bing Wang, Jiao Wang, Yongfeng Mei
doaj   +1 more source

Thermodynamic metal crystallization basics

open access: yesЛитьë и металлургия, 2020
On the basis of thermodynamic calculations it is shown that crystallization of metals is a thermodynamic process, which takes place mainly at constant temperature.
E. I. Marukovich, V. Yu. Stetsenko
doaj   +1 more source

Shape-Engineering and Mechanism Investigation of AgCl Microcrystals

open access: yesCrystals
AgCl microcrystals are used in visible light photocatalysis. However, their properties depend strongly on the morphology of the crystals and the degree of exposure of the crystal planes.
Chunli Cai   +6 more
doaj   +1 more source

Influence of natural polysaccharides on the morphology and properties of hybrid vaterite microcrystals

open access: yesHeliyon
Co-precipitation of biopolymers into calcium carbonate crystals changes their physicochemical and biological properties. This work studies hybrid microcrystals of vaterite obtained in the presence of natural polysaccharides, as carriers for the delivery ...
Nadezhda G. Balabushevich   +15 more
doaj   +1 more source

Nanostructural crystallization of silumins

open access: yesЛитьë и металлургия, 2022
The crystallization of silumins has been shown to be a nanostructured process. Liquid silumin consists of elementary nanocrystals of aluminum and silicon, free atoms of aluminum and silicon, aluminum-silicon complexes.
E. I. Marukovich   +2 more
doaj   +1 more source

Elasticity of microcrystals

open access: yesGeophysical Research Letters, 1975
Acoustic velocities for a very small crystal are presented. The longitudinal velocities in the .3 mm single crystal of quartz are accurate to about 1–2%. The technique involves only optical measurements and is based on analysis of Brillouin scattering.
Donald J. Weidner   +2 more
openaire   +1 more source

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