Results 71 to 80 of about 450,579 (285)

Quantifying Spin Defect Density in hBN via Raman and Photoluminescence Analysis

open access: yesAdvanced Functional Materials, EarlyView.
An all‐optical method is presented for quantifying the density of boron vacancy spin defects in hexagonal boron nitride (hBN). By correlating Raman and photoluminescence signals with irradiation fluence, defect‐induced Raman modes are identified and established an relationship linking optical signatures to absolute defect densities. This enables direct
Atanu Patra   +8 more
wiley   +1 more source

Electrochemical Formation of BiVO4/BiPO4 Photoanodes for Enhanced Selectivity toward H2O2 Generation

open access: yesAdvanced Functional Materials, EarlyView.
In acidic KPi, V dissolves from the BiVO4 lattice, while adsorbed phosphate reacts with the electrode under an external bias, forming a BiPO4 surface layer. This BiPO4 layer exhibits stronger bicarbonate adsorption, redirecting the water oxidation pathway toward two‐electron H2O2 production.
Kaijian Zhu   +12 more
wiley   +1 more source

Atomically Revealing Bulk Point Defect Dynamics in Hydrogen‐Driven γ‐Fe2O3 → Fe3O4 → FeO Transformation

open access: yesAdvanced Functional Materials, EarlyView.
In situ TEM uncovers the atomic‐scale mechanisms underlying hydrogen‐driven γ‐Fe2O3→Fe3O4→FeO reduction. In γ‐Fe2O3, oxygen vacancies cluster around intrinsic Fe vacancies, leading to nanopore formation, whereas in Fe3O4, vacancy aggregation is suppressed, preserving a dense structure.
Yupeng Wu   +14 more
wiley   +1 more source

Inhalability and Bioactivity of Spray‐Dried versus Pressurized Gas eXpanded Liquid Technology‐Processed Yeast Beta‐Glucan Microparticles for Anti‐Fibrotic Therapies

open access: yesAdvanced Healthcare Materials, EarlyView.
PGXTEC) liquid technology is utilized to develop highly respirable yeast beta‐glucan (YBG) microparticles for the treatment of pulmonary fibrosis. Compared to conventionally processed spray‐dried YBG, PGXTEC‐YBG exhibits greatly improved aerodynamic properties, enhanced pro‐fibrotic macrophage uptake, and effective downregulation of pro‐fibrotic ...
Nate Dowdall   +14 more
wiley   +1 more source

Mesoporous Bioactive Glasses: A Powerful Tool in Tissue Engineering and Drug Delivery

open access: yesAdvanced Healthcare Materials, EarlyView.
This work is a comprehensive revision of bioactive glasses (BGs), pioneered by Prof. L.L. Hench, which are key in bone repair and regenerative medicine. Sol–gel methods and mesoporous designs enhanced their bioactivity, ions, and drug delivery. BGs now support gene therapy and 3D‐printed scaffolds, enabling personalized, multifunctional treatments in ...
Natividad Gómez‐Cerezo   +3 more
wiley   +1 more source

Applications of representation theory in discrete mathematics

open access: yes, 2019
In this thesis we present two new applications of the representation theory of finite groups in discrete mathematics. The first application is in coding theory. We further develop the theory of upper bounds for error-correcting codes and mixed binary/ternary codes, thereby expanding upon the work of Gijswijt et al. and Brouwer et al.
openaire   +1 more source

Guides for Developing Hundreds of Novel Chiral MXenes and MBenes Nanosheets/Quantum Dots for Next‐Generation Chiral Engineered Biomaterials Applications

open access: yesAdvanced Healthcare Materials, EarlyView.
The emerging field of MXene/MBene materials has progressed rapidly, advancing diverse research fields, including biomedical engineering, biomedicine, agriculture, and the environment. This nanobiotechnology can tackle longstanding challenges in these areas.
Alireza Rafieerad, Ahmad Amiri
wiley   +1 more source

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