Study on the Luminescence Performance and Anti-Counterfeiting Application of Eu, Nd Co-Doped SrAlO Phosphor.

This manuscript describes the synthesis of green long afterglow nanophosphors SrAlO:Eu, Nd using the combustion process. The study encompassed the photoluminescence behavior, elemental composition, chemical valence, morphology, and phase purity of SrAlO:Eu, Nd nanoparticles. The results demonstrate that after introducing Eu into the matrix lattice, it exhibits an emission band centered at 508 nm when excited by 365 nm ultraviolet light, which is induced by the 4f5d→4f transition of Eu ions.

Three-Dimensional Bioprinting of Strontium-Modified Controlled Assembly of Collagen Polylactic Acid Composite Scaffold for Bone Repair.

In recent years, the incidence of bone defects has been increasing year by year. Bone transplantation has become the most needed surgery after a blood transfusion and shows a rising trend. Three-dimensional-printed implants can be arbitrarily shaped according to the defects of tissues and organs to achieve perfect morphological repair, opening a new way for non-traumatic repair and functional reconstruction.

Design, Synthesis, and Characterization of a Novel Blue-Green Long Afterglow BaYAlO:Eu, Nd Phosphor and Its Anti-Counterfeiting Application.

Herein, a series of novel long afterglow nanophosphors BaYAlO:Eu, Nd was synthesized by the combustion method. The investigation encompassed the characterization of X-ray diffraction, morphology, chemical valence, elemental composition, and photoluminescence behavior of BaYAlO:Eu+ and BaYAlO:Eu, Nd nanoparticles. Under 365 nm excitation, BaYAlO:Eu and BaYAlO:Eu, Nd show emission bands centered at 497 nm and 492 nm, which are attributed to the 4f5d→4f transition of Eu ions.

Enhanced Fluorescence Characteristics of SrAlO: Eu, Dy Phosphor by Co-Doping Gd and Anti-Counterfeiting Application.

A series of long-afterglow luminescent materials (SrAlO: Eu (SAOE), SrAlO: Eu, Dy (SAOED) and SrAlO: Eu, Dy, Gd (SAOEDG)) was synthesized via the combustion method. Temperature and concentration control experiments were conducted on these materials to determine the optimal reaction temperature and ion doping concentration for each sample. The crystal structure and luminescent properties were analyzed via X-ray diffraction (XRD), photoluminescence (PL), and afterglow attenuation curves.

In-Situ Oxidative Polymerization of Pyrrole Composited with Cellulose Nanocrystal by Reactive Ink-Jet Printing on Fiber Substrates.

A simple and novel method for the deposition of polypyrrole (PPy) and cellulose nanocrystal (CNC) composites on different fiber substrates by reactive ink-jet printing was proposed. PPy/CNCs composites were successfully prepared, and the surface resistance of conductive layer deposited on different fiber substrates is the least when the monomer concentration is 0.6 M.