Journal
NANO RESEARCH
Volume 4, Issue 7, Pages 685-694Publisher
TSINGHUA UNIV PRESS
DOI: 10.1007/s12274-011-0124-y
Keywords
Upconversion luminescence; NaYF4 nanocrystals; cell imaging
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Funding
- National Natural Science Foundation of China [20175009, 20871004]
- State Key Project of Fundamental Research of China for Nanomaterials and Nanostructures
- Beijing University of Chemical Technology for newly-appointed staff
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A facile strategy using cheap and readily available precursors has been successfully developed for the synthesis of rare-earth doped hexagonal phase NaYF4 nanocrystals with uniform shape and small particle size as well as strong photoluminescence. Due to their optical properties and good biocompatibility, these multicolor nanocrystals were successfully used as a bio-tag for cancer cell imaging. This novel synthetic method should also be capable of extension to the synthesis of other fluoride nanocrystals such as YF3 and LaF3.
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