Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/23092
Title: A strategy for simultaneously realizing the cubic-to-hexagonal phase transition and controlling the small size of NaYF4:Yb 3+,Er3+ nanocrystals for in vitro cell imaging
Authors: Wang, ZL
Hao, J 
Chan, HLW 
Wong, WT 
Wong, KL
Keywords: Biosensors
Fluorescent probes
Imaging
Lanthanide nanocrystals
Phase transitions
Issue Date: 2012
Publisher: Wiley-VCH
Source: Small, 2012, v. 8, no. 12, p. 1863-1868 How to cite?
Journal: Small 
Abstract: Hexagonal-phase NaYF4:Yb3+,Er3+ up-conversion nanocrystals (UCNCs) are synthesized by a combination of refluxing and hydrothermal treatment. This strategy leads to only a slight increase in particle size, from 4.5 to ca. 10 nm, during the cubic-to-hexagonal phase transition. The hexagonal UCNCs can be internalized by HeLa cells and exhibit visible emission in the cells under near-infrared excitation.
URI: http://hdl.handle.net/10397/23092
ISSN: 1613-6810
EISSN: 1613-6829
DOI: 10.1002/smll.201102703
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