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Dementia Care Research and Psychosocial Factors.
Alzheimers Dement
December 2024
BioXcel Therapeutics, New Haven, CT, USA.
Background: BXCL501, a sublingual film formulation of dexmedetomidine, a highly selective α2 adrenoceptor agonist, is currently being studied for the acute treatment of agitation associated with dementia.
Method: This was a Phase 1b/2 study assessing efficacy and tolerability of BXCL501 for treatment of acute agitation associated with dementia. Subjects were randomized to active treatment with BXCL501 (30, 40, or 60µg) or placebo.
Unlocking advanced thermometric capabilities: BiVO: Er/Yb nanophosphors with dual-mode up-conversion and down-shifting features.
RSC Adv
January 2025
Department of Condensed Matter Physics, GdS Optronlab, LUCIA Building, University of Valladolid Paseo de Belén 19 47011 Valladolid Spain.
Luminescent materials doped with rare-earth (RE) ions have emerged as powerful tools in thermometry, offering high sensitivity and accuracy. However, challenges remain, particularly in maintaining efficient luminescence at elevated temperatures. This study investigates the thermometric properties of BiVO: Yb/Er (BVO: Er/Yb) nanophosphors synthesized the sol-gel method.
View Article and Find Full Text PDFThe Impact of Silver Codoping on Tb Luminescence in Lithium Tetraborate Glasses.
Luminescence
January 2025
Vlokh Institute of Physical Optics, Ivan Franko National University of Lviv, Lviv, Ukraine.
Spectroscopic properties of Tb-doped and Tb-Ag codoped lithium tetraborate (LTB) glasses with LiBO (or LiO-2BO) composition are investigated and analysed using electron paramagnetic resonance (EPR), optical absorption, photoluminescence (PL) and photoluminescence excitation (PLE) spectra, PL decay kinetics and absolute quantum yield (QY) measurements. PL spectra of the investigated glasses show numerous narrow emission bands corresponding to the D → F (J = 6-0) and D → F (J = 5-3) transitions of Tb (4f) ions. The most intense PL band of Tb ions at 541 nm (D → F transition) is characterised by a lifetime slightly exceeding 2.
View Article and Find Full Text PDFHydrogen Bond "Double-Edged Sword Effect" on Organic Room-Temperature Phosphorescence Properties: A Theoretical Perspective.
J Phys Chem A
January 2025
Shandong Province Key Laboratory of Medical Physics and Image Processing Technology, School of Physics and Electronics, Shandong Normal University, Jinan 250014, China.
The strategy of designing efficient room-temperature phosphorescence (RTP) emitters based on hydrogen bond interactions has attracted great attention in recent years. However, the regulation mechanism of the hydrogen bond on the RTP property remains unclear, and corresponding theoretical investigations are highly desired. Herein, the structure-property relationship and the internal mechanism of the hydrogen bond effect in regulating the RTP property are studied through the combination of quantum mechanics and molecular mechanics methods (QM/MM) coupled with the thermal vibration correlation function method.
View Article and Find Full Text PDFSpin polarization detection via chirality-induced tunnelling currents in indium selenide.
Nat Mater
January 2025
Institute of Electrical and Microengineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.
Chirality, a basic property of symmetry breaking, is crucial for fields such as biology and physics. Recent advances in the study of chiral systems have stimulated interest in the discovery of symmetry-breaking states that enable exotic phenomena such as spontaneous gyrotropic order and superconductivity. Here we examine the interaction between light chirality and electron spins in indium selenide and study the effect of magnetic field on emerging tunnelling photocurrents at the Van Hove singularity.
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