期刊
ADVANCED FUNCTIONAL MATERIALS
卷 30, 期 32, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adfm.202003101
关键词
hybrid materials; lanthanide luminescence; periodic mesoporous organosilicas; physiological sensing; ratiometric thermometers
类别
资金
- Ghent University
- FWO Vlaanderen [G043219]
- EU-Horizon 2020 FET-Open project NanoTBtech [801305]
- BOF UGent [01IO3618, BAS094-18]
Lanthanide-doped luminescent nanoparticles are an appealing system for nanothermometry with biomedical applications due to their sensitivity, reliability, and minimal invasive thermal sensing properties. Here, four unique hybrid organic-inorganic materials prepared by combining beta-NaGdF4 and PMOs (periodic mesoporous organosilica) or mSiO(2) (mesoporous silica) are proposed. PMO/mSiO(2) materials are excellent candidates for biological/biomedical applications as they show high biocompatibility with the human body. On the other hand, the beta-NaGdF4 matrix is an excellent host for doping lanthanide ions, even at very low concentrations with yet very efficient luminescence properties. A new type of Er3+-Yb3+ upconversion luminescence nanothermometers operating both in the visible and near infrared regime is proposed. Both spectral ranges permit promising thermometry performance even in aqueous environment. It is additionally confirmed that these hybrid materials are non-toxic to cells, which makes them very promising candidates for real biomedical thermometry applications. In several of these materials, the presence of additional voids leaves space for future theranostic or combined thermometry and drug delivery applications in the hybrid nanostructures.
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