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Observations of Cherenkov-Like Radial Wake in Water Waves.
Adv Sci (Weinh)
January 2025
Key Laboratory of Ocean Observation‑Imaging Testbed of Zhejiang Province, Ocean College, Zhejiang University, Hangzhou, 310058, China.
Cherenkov radiation (CR) is a fascinating phenomenon that occurs not only in electromagnetic (EM) waves but also in water waves. The V-shaped wake formed by a moving object on the water surface results from the constructive interference of water waves of different wavelengths, similar to CR. We designed and fabricated a one-dimensional (1D) water wave crystal to analogize the behavior of moving particles in water waves.
View Article and Find Full Text PDFThe impact of antimony on all-inorganic lead-free perovskites: progress in optical advancement and applications.
Nanoscale
January 2025
Hunan Automotive Engineering Vocational University, Zhuzhou 412001, P. R. China.
The incorporation of Sb ions into all-inorganic halide lead-free perovskites bestows them with remarkable photoluminescence characteristics, including an extensive color tuning range, elevated photoluminescence quantum yield (PLQY), and reversible color transitions, which hold significant promise for applications in light-emitting diodes, anti-counterfeiting encryption technologies, and photodetectors. Sb ions not only create new optical absorption channels but also can be integrated into these materials as activators or sensitizers to modulate the bandgap and band structure. This review focuses on the optical properties of Sb ion-doped lead-free halide perovskites while examining potential energy transfer pathways across various doping systems.
View Article and Find Full Text PDFNanoclay-Mediated Crystal-Phase Engineering in Biofunctions to Balance Antibacteriality and Cytotoxicity.
Nano Lett
January 2025
Engineering Research Center of Nano-Geomaterials of Ministry of Education, China University of Geosciences, Wuhan 430074, China.
The crystalline phase of metal oxides is a key determinant of the properties and functions of the nanomaterials. Traditional approaches have focused on replicating bulk-phase structures, with limited exploration of phase diversity due to challenges in controlling the crystal morphology. Here, we introduce a nanoclay-mediated strategy for crystal-phase engineering, using talc to modulate the morphology and phase of manganese oxide (MnOx) nanoparticles.
View Article and Find Full Text PDFMixed-Bridging 2D Luminescent Coordination Polymer: Structure, Selective Sensing of Pollutants in Water, and Fabrication of Photoresponsive Electronic Device.
Inorg Chem
January 2025
Department of Chemistry, Jadavpur University, Kolkata, West Bengal 700032, India.
Pyrazine (tppz) and 5-sulfosalicylic acid (HSSA) mixed-bridging Cd(II)-CP, {[Cd(HSSA)(tppz)]} (), is highly luminescent, and the emission has been quenched selectively by Al in the presence of other cations, with a limit of detection (LOD) of 43.9 nM (1.18 ppb).
View Article and Find Full Text PDFPresence and distribution of voids after using the single cone obturation technique with different sealer placement methods in canals with an isthmus.
J Dent Sci
January 2025
Department of Oral Emergency, Peking University School and Hospital of Stomatology & National Center for Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices& Beijing Key Laboratory of Digital Stomatology & NHC Key Laboratory of Digital Stomatology & NMPA Key Laboratory for Dental Materials, Beijing, China.
Background/purpose: The obturation of canals with irregular structures is still a challenge for single cone obturation technique (SC). The purpose of this study was to evaluate the presence and distribution of voids using SC with different sealer placement methods in the canal with a simulated band-shaped isthmus.
Materials And Methods: 3D-printed root canal models with band-shaped isthmuses were randomly divided into four groups according to different obturation methods.
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