Three luminescent Eu-containing phosphate materials (Ca-doped europium phosphate monohydrate, Eu-doped carbonated-apatite, and europium phosphate monohydrate) were prepared and analyzed on the level of bulk structure and surface properties and compared to the biomimetic non-luminescent counterpart hydroxyapatite. Europium-containing phosphate materials exhibited nanosized dimensions but different luminescence emissions and luminescence lifetimes depending on their crystalline structures (i.e., lanthanide phosphate or apatites) and chemical composition. The introduction of Eu in the crystal lattice leads to a notable decrease in the overall Lewis acidity of the surface cationic sites detected by CO probing. Further, the mixed Eu/Ca-containing materials surfaces were found to be very similar to the reference hydroxyapatite in terms of water adsorption energy, while the pure europium phosphate resulted to have the notably higher energy values of direct interaction of water molecules with the surface cations with no detected propagation of this effect towards water overlayers.
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http://dx.doi.org/10.1016/j.colsurfb.2022.112620 | DOI Listing |
Chem Commun (Camb)
January 2025
Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road, Oxford, UK.
Here we present the first use of principal component analysis of the full spectrum of a single europium complex to differentiate between structurally-similar analytes. We demonstrate that it can be used to distinguish between the nucleoside phosphate guests AMP, ADP, and ATP.
View Article and Find Full Text PDFTalanta
March 2025
College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, Henan 454000, China. Electronic address:
Phosphate (Pi) has an important influence on the water environment and physiological processes. Therefore, developing fluorescent probe for quantitative detection of Pi is crucial for water environment monitoring and human health assessment. This work designed a dual-emission ratio nano-fluorescent probe GCDs/Eu-BDC based on europium-based metal-organic frameworks (Eu-MOFs) and blue carbon dots (GCDs) for multicolor fluorescence detection of Pi.
View Article and Find Full Text PDFLuminescence
November 2024
Department of Physics, Sree Narayana College, Palakkad, India.
Lanthanum phosphate is a well-known potential host for rare earth activators for phosphor-converted white LED application. Na and Bi codoped Eu activated LaPO nanophosphor is successfully synthesized using citrate-based hydrothermal method at ambient condition and confirmed by XRD, EDS and XPS analysis. The excitation spectra of the sample exhibit sharp f-f characteristics peak of Eu at 393 nm that is found to be the most dominant.
View Article and Find Full Text PDFACS Biomater Sci Eng
November 2024
College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, P. R. China.
In response to the challenges faced by clinicians treating bone defects caused by various factors, various bone repair materials have been investigated, but the efficiency of bone healing still needs to be improved due to the acting of scaffolds only in a single stage of bone tissue regeneration. We investigated the potential of a novel 3D scaffold to support different stages of bone tissue regeneration, including initial inflammation, proliferation, and remodeling. Eu (0, 0.
View Article and Find Full Text PDFLuminescence
September 2024
Department of Physical and Earth Sciences, Faculty of Natural and Applied Sciences, Sol Plaatje University, Kimberley, South Africa.
To investigate the impact of PO anionic groups, the trivalent europium ion-doped calcium molybdate (CaMoO-PO:xEu, where x = 0.5, 1.0, 1.
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