Please use this identifier to cite or link to this item:
Title: Multicolor core/shell-structured upconversion fluorescent nanoparticles
Authors: Li, Z. 
Zhang, Y. 
Jiang, S.
Issue Date: 17-Dec-2008
Citation: Li, Z.,Zhang, Y.,Jiang, S. (2008-12-17). Multicolor core/shell-structured upconversion fluorescent nanoparticles. Advanced Materials 20 (24) : 4765-4769. ScholarBank@NUS Repository.
Abstract: The core/shell-structured pure-hexagonal-phase NaYF4:Yb,Er/Tm nanospheres with very thin and uniform silica coatings was prepared. These nanoparticles were usually synthesized in organic solvents or at high temperatures, where ethylenediamine tetraacetic acid (EDTA) was used as a chelating agent to control the growth of NaYf4 nanocrystal. These nanoparticles have advantages such as minimum photo damage to living organisms, weak background fluorescence, high detection sensitivity, and high light-penetration depth in tissues. Some inorganic materials, as semiconductor quantum dots (QDs) and metal nanospheres or nanorods, were also developed and used for two-photon imaging of cells. The results shows that the nanospheres were used as fluorescent probes in cell imaging. The multicolor upconversion nanosphere, produced by encapsulating organic dyes or QDs into the silica shell, would prove very useful for in vitro multiplexed bioassays and in vivo studies.
Source Title: Advanced Materials
ISSN: 09359648
DOI: 10.1002/adma.200801056
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.


checked on Oct 14, 2018

Page view(s)

checked on Oct 12, 2018

Google ScholarTM



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.