Highly efficient green up-conversion emission from fluoroindate glass nanoparticles functionalized with a biocompatible polymer

Up-conversion nanoparticles have garnered lots of attention due to their ability to transform low energy light (near-infrared) into high-energy (visible) light, enabling their potential use as remote visible light nano-transducers. However, their low efficiency restricts their full potential. To ove...

Full description

Saved in:

Bibliographic Details
Published in:	RSC advances Vol. 12; no. 31; pp. 274 - 279
Main Authors:	Jimenez, G. Lesly, Shrestha, Binita, Porter, Tyron, Starzyk, Bartlomiej, Lesniak, Magdalena, Kuwik, Marta, Kochanowicz, Marcin, Szumera, Magdalena, Lisiecki, R, Dorosz, D
Format:	Journal Article
Language:	English
Published:	England Royal Society of Chemistry 06-07-2022 The Royal Society of Chemistry
Subjects:	Biocompatibility Biomedical materials Chemistry Energy transfer Erbium Metal ions Nanoparticles Polyethylene glycol Rare earth elements Thermal stability Transducers Upconversion Ytterbium
Online Access:	Get full text
Tags:	Add Tag No Tags, Be the first to tag this record!

Description
Summary:	Up-conversion nanoparticles have garnered lots of attention due to their ability to transform low energy light (near-infrared) into high-energy (visible) light, enabling their potential use as remote visible light nano-transducers. However, their low efficiency restricts their full potential. To overcome this disadvantage, fluoroindate glasses (InF 3 ) doped at different molar concentrations of Yb 3+ and Er 3+ were obtained using the melting-quenching technique, reaching the highest green emission at 1.4Yb and 1.75Er (mol%), which corresponds to the 4 S 3/2 → 4 I 15/2 (540-552 nm) transition. The particles possess the amorphous nature of the glass and have a high thermostability, as corroborated by thermogravimetric assay. Furthermore, the spectral decay curve analysis showed efficient energy transfer as the rare-earth ions varied. This was corroborated with the absolute quantum yield (QY) obtained (85%) upon excitation at 385 nm with QYEr = 17% and QYYb = 68%. Additionally, InF 3 -1.4Yb-1.75Er was milled and functionalized using poly(ethylene glycol) to impart biocompatibility, which is essential for biomedical applications. Such functionalization was verified using FTIR, TG/DSC, and XRD. Up-conversion nanoparticles have garnered lots of attention due to their ability to transform low energy light (near-infrared) into high-energy (visible) light, enabling their potential use as remote visible light nano-transducers.
Bibliography:	https://doi.org/10.1039/d2ra03171j Electronic supplementary information (ESI) available. See ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	2046-2069 2046-2069
DOI:	10.1039/d2ra03171j