Biocompatibility of silica coated NaYF4 upconversion fluorescent nanocrystals

Rufaihah Abdul Jalil, Yong Zhang

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

494 Citations (Scopus)

Abstract

Here we report the synthesis of uniform silica coated hexagonal-phase NaYF4 nanocrystals with strong NIR-to-visible upconversion fluorescence and its cytotoxicity and biodistribution in a rat model. The silica coated NaYF4 nanocrystals were incubated with rat skeletal myoblasts and bone marrow-derived mesenchymal stem cells and cytotoxicity was assessed by using MTS and LDH assay. Healthy rats were injected intravenously with the nanocrystals so as to further investigate their biocompatibility and tissue distribution. The results from this study revealed that the silica coated NaYF4 upconversion nanocrystals displayed good in vitro and in vivo biocompatibility, demonstrating their potential applications in both cellular and animal imaging systems. © 2008 Elsevier Ltd. All rights reserved.
Original languageEnglish
Pages (from-to)4122-4128
JournalBiomaterials
Volume29
Issue number30
DOIs
Publication statusPublished - Oct 2008
Externally publishedYes

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Research Keywords

  • Biodistribution
  • Imaging
  • Near infrared
  • Toxicity
  • Upconversion nanocrystals

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