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Polyvinylpyrrolidone Nanofibers Encapsulating an Anhydrous Preparation of Fluorescent SiO(2)–Tb(3+) Nanoparticles

A novel anhydrous preparation of silica (SiO(2))-encapsulated terbium (Tb(3+)) complex nanoparticles has been investigated. The SiO(2)-Tb(3+) nanoparticles are incorporated in electrospun polyvinylpyrrolidone hybrid nanofibers. Transmission electron microscopy confirms that Tb(3+) complexes are unif...

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Detalles Bibliográficos
Autores principales: Shi, Jianhang, Wang, Yanxin, Huang, Linjun, Lu, Peng, Sun, Qiuyu, Wang, Yao, Tang, Jianguo, Belfiore, Laurence A., Kipper, Matt J.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6523366/
https://www.ncbi.nlm.nih.gov/pubmed/30986951
http://dx.doi.org/10.3390/nano9040510
Descripción
Sumario:A novel anhydrous preparation of silica (SiO(2))-encapsulated terbium (Tb(3+)) complex nanoparticles has been investigated. The SiO(2)-Tb(3+) nanoparticles are incorporated in electrospun polyvinylpyrrolidone hybrid nanofibers. Transmission electron microscopy confirms that Tb(3+) complexes are uniformly and stably encapsulated in or carried by nanosilica. The influence of pH on the fluorescence of Tb(3+) complexes is discussed. The properties, composition, structure, and luminescence of the resulting SiO(2)–Tb(3+) hybrid nanoparticles are investigated in detail. There is an increase in the fluorescence lifetime of SiO(2)–Tb(3+) nanoparticles and SiO(2)–Tb(3+)/polyvinylpyrrolidone (PVP) hybrid nanofibers compared with the pure Tb(3+) complexes. Due to the enhanced optical properties, the fluorescent hybrid nanofibers have potential applications as photonic and photoluminescent materials.