来源：ACS PublicationsApatite serves as one of the host minerals for rare earth elements (REE). Elucidating the site preference of REE within the apatite structure is critical for understanding their enrichment mechanisms, ore-forming processes, and potential utilization. Single-crystal X-ray diffraction (SCXRD) is a key technique in such research. However, natural apatite commonly exhibits compositional zoning, and the sample size requirements of SCXRD often hinder the characterization of structural variations among different zones. Consequently, there is a pressing need in Earth sciences for an...
Release time:
2026
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来源：ACS PublicationsThe present work focuses on methotrexate (MTX)-conjugated terbium-doped carbon dots (CDTb) as an innovative drug delivery platform for targeted colon cancer therapy using Caco-2 cell lines. Briefly, carbon dots (CDs) were synthesized via a microwave-assisted method, subsequently doped with terbium using a chemical precipitation method, and then conjugated with MTX drug molecules. The physicochemical properties of the synthesized CDTb-MTX complexes were evaluated using various characterization methods, namely, X-ray diffraction (XRD), high-resolution transmission electron mic...
Release time:
2026
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Curcuma longa debranched starch assisted synthesis of cerium oxide nanoparticles and its antioxidant, anticancer, antimicrobial, and anti-biofilm activities 来源：X-MOLNowadays, there is a growing emphasis on eco-friendly methods for synthesizing metal nanoparticles (NPs), that avoid chemical processes and the production of harmful substances. In this study, we present a novel green approach for preparing cerium oxide nanodots (CeO2NPs) using Curcuma longa debranched starch as a reducing and capping agent via the sol-gel method. The prepared CeO2NPs were characterized using various techniques, in...
Release time:
2026
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Trivalent rare-earth ions (RE3+) exhibit sharp 4f–4f transitions that are highly sensitive to dipole–dipole interactions (DDIs), yet the intrinsic short-range of DDIs restricts their application in long-distance quantum coupling. Here, we demonstrate a plasmonic nanocavity pair that simultaneously couples to upconversion nanoparticles (UCNPs) and quantum dots (QDs), enabling enhanced emission and inter-emitter interaction. The combined effects of Purcell enhancement and surface plasmon polariton (SPP) propagation extend the DDI-mediated energy transfer over a record distance exceeding 7.5 μm, ...
Release time:
2026
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