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Generating ultra-violet lasers with near-infrared light through “domino upconversion” of nanoparticles source:eurekalertStrong and coherent ultraviolet light emission devices have enormous medical and industrial application potential, but generating ultraviolet light emission in an effective way has been challenging. Recently, a collaborative research team co-led by researchers from City University of Hong Kong (CityU) developed a new approach to generate deep-ultraviolet lasing through a 'domino upconversion' process of nanoparticles using near-infrared light, which is commonly u...
Release time: 2022 - 05 - 20
source:natureAbstractRare-earth titanates form very fragile liquids that can be made into glasses with useful optical properties. We investigate the atomic structure of 83TiO2-17Nd2O3 glass using pair distribution function (PDF) analysis of X-ray and neutron diffraction with double isotope substitutions for both Ti and Nd. Six total structure factors are analyzed (5 neutron + 1 X-ray) to obtain complementary sensitivities to O and Ti/Nd scattering, and an empirical potential structure refinement (EPSR) provides a structural model consistent with the experimental measurements. Glass density is ...
Release time: 2022 - 05 - 19
source:azominingAZoMining speaks with Prof. James Tour from Rice University about his novel method that has the potential to recover valuable REE from three types of waste; electronic waste, coal fly ash and bauxite residue. This novel process could offer a radical, environmentally friendly alternative to conventional REE extraction and recovery methods. The demand for rare-earth elements (REE) is on the rise. Why do you think this is?Due to their unusual physical and chemical properties, such as unique magnetic and optical properties, REEs have diverse applications that touch many aspect...
Release time: 2022 - 05 - 18
Nacre-mimetic cerium-doped nano-hydroxyapatite/chitosan layered composite scaffolds regulate bone regeneration via OPG/RANKL signaling pathway source:newswiseAbstract:Background: There has been a major burden in diseases associated with critical bone defects. Despite many techniques for defect management has come into use, the common treatment remains controversial. Mollusk nacre is a natural structure with outstanding mechanical property due to its notable “brick-and-mortar” architecture. Combining inorganic brick with organic mortar, natural nacre displays remarkable tensile strength an...
Release time: 2022 - 05 - 17
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