Results 41 to 50 of about 39,827 (264)

Upconversion Nanoparticles Embedded Photonic Contact Lens for Transepithelial Corneal Crosslinking Using Hyaluronate – Riboflavin Conjugate

open access: yesAdvanced Functional Materials, EarlyView.
A minimally invasive, transepithelial corneal cross‐linking (TE‐CXL) approach is presented using upconversion nanoparticles (UCNPs)‐loaded contact lenses (UCLs), after topical delivery of hyaluronate–riboflavin conjugates. The NIR‐to‐UV/blue light conversion by UCNPs in a UCL can activate riboflavin for TE‐CXL, resulting in the biomechanical strength ...
Gibum Lee   +8 more
wiley   +1 more source

X-Ray Induced Light Emission of Yttrium Oxide

open access: yesEast European Journal of Physics, 2021
The paper presents the experimental results of light radiation from Y2O3 ceramics caused by X-rays with energy up to 50 keV. The samples were made from commercial Y2O3 nanopowder by pressing and subsequent sintering in air at different temperatures from ...
Sergiy Kononenko   +4 more
doaj   +1 more source

Role of Liquid Composition in the Transient Liquid Assisted Growth of Superconducting YBa2Cu3O7‐δ Films

open access: yesAdvanced Materials, EarlyView.
The Y supersaturation in the [Ba‐Cu(I/II)‐O] transient liquid composition is the driving force toward YBCO nucleation and growth in TLAG. Tuning the initial (Ba:Cu) molar ratio in the ink composition determines the YBCO epitaxial nucleation through supersaturation control.
Lavinia Saltarelli   +12 more
wiley   +1 more source

Effect of yttrium(Y) on structural, morphological and transport properties of CdO thin films prepared by spray pyrolysis technique

open access: yesHeliyon, 2018
Cadmium oxide (CdO) and yttrium (Y) doped CdO (Y: CdO) thin films have been prepared onto glass substrate at temperature 300 °C by spray pyrolysis technique.
S. Ahmed   +4 more
doaj   +1 more source

Floating zone process for drawing small diameter fibers of refractory materials [PDF]

open access: yes, 1972
New process produces controlled purity, very high strength, single crystal fibers of materials with melting points to 4000 C. Process has been used to make single crystal fibers of highly refractory ceramics such as aluminum oxide, titanium carbide and ...
Haggerty, J.   +3 more
core   +1 more source

A first-principles study of helium storage in oxides and at oxide--iron interfaces [PDF]

open access: yes, 2012
Density-functional theory calculations based on conventional as well as hybrid exchange-correlation functionals have been carried out to study the properties of helium in various oxides (Al2O3, TiO2, Y2O3, YAP, YAG, YAM, MgO, CaO, BaO, SrO) as well as at
Allnatt A. R.   +4 more
core   +2 more sources

Versatile Gasochromic Hydrogen Detection via Supraparticle‐Based Applied Composite Materials

open access: yesAdvanced Optical Materials, EarlyView.
Silica‐platinum‐resazurin supraparticles are embedded into PMMA to form suprabeads and thin films. The thereby obtained indicators change color from purple to pink to colorless on hydrogen exposure. The indicator systems are tested under various environmental conditions, and their performance is related to their microscopically visualized structure ...
Sarah Wenderoth   +7 more
wiley   +1 more source

Nanophotonic Strategies for Chiral Biosensing: Nanoparticles, Metasurfaces, Magneto‐Optical, and Quantum Approaches

open access: yesAdvanced Photonics Research, EarlyView.
Recent advances in nanophotonics‐based chiral biosensing approaches are comprehensively reviewed, highlighting key trends, advantages, and limitations of each technology. Special attention is given to emerging strategies that exploit magneto‐optical and quantum plasmonic phenomena to enhance sensitivity down to the level of a few molecules, or even a ...
Jorge Ricardo Mejía‐Salazar
wiley   +1 more source

Influence of Y doping on high temperature oxidation resistance of titanium diboride coatings

open access: yesJournal of Materials Research and Technology
In this study, DC magnetron sputtering was employed to deposit TiB2 coatings with varying yttrium content. The XPS results revealed that yttrium was identified in the TiB2 coating as yttrium oxide (Y2O3) due to the presence of residual oxygen.
Xiaolong Yao   +3 more
doaj   +1 more source

Preparation and application of yttrium oxide with a large specific surface area through moderate carbonation in the presence of carbon dioxide

open access: yesJournal of Materials Research and Technology, 2023
Yttrium oxide with a large specific surface area (SSA) (hereafter called LSSA Y2O3) has high-porosity structure, relatively large interface, and relatively abundant active surface sites, and its optical, chemical and thermal stability properties are ...
Minglu Rao   +5 more
doaj   +1 more source

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