http://dx.doi.org/10.1002/smll.201102703">
 

Document Type

Journal Article

Department/Unit

Department of Chemistry

Title

A strategy for simultaneously realizing the cubic-to-hexagonal phase transition and controlling the small size of NaYF4:Yb3+,Er3+ nanocrystals for in vitro cell imaging

Language

English

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. © 2012 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.

Keywords

biosensors, fluorescent probes, imaging, lanthanide nanocrystals, phase transitions

Publication Date

2012

Source Publication Title

Small

Volume

8

Issue

12

Start Page

1863

End Page

1868

Publisher

Wiley

ISSN (print)

16136810

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