Jump to main content
Jump to site search

Issue 30, 2011
Previous Article Next Article

A facile method to synthesize superparamagnetic and up-conversion luminescent NaYF4:Yb, Er/Tm@SiO2@Fe3O4 nanocomposite particles and their bioapplication

Author affiliations

Abstract

This paper presents a facile method for the fabrication of core-shell-structured NaYF4:Yb, Er/Tm@SiO2@Fe3O4 nanocomposite particles (NCPs). In this approach, when the EDTA-capped NaYF4:Yb, Er/Tm nanoparticles were mixed with the oleic acid-modified magnetic Fe3O4 nanoparticles in isopropyl alcohol, followed by addition of TEOS and ammonium hydroxide, core-shell NaYF4:Yb, Er/Tm@SiO2@Fe3O4 NCPs were directly yielded; neither surface modification nor high temperature was needed. The obtained NCPs have very good superparamagnetic and luminescent properties. Preliminary investigation of incubating with HeLa cells displays that the NCPs are easily swallowed and can be used in bioimaging.

Graphical abstract: A facile method to synthesize superparamagnetic and up-conversion luminescent NaYF4:Yb, Er/Tm@SiO2@Fe3O4 nanocomposite particles and their bioapplication

Back to tab navigation

Publication details

The article was received on 19 Mar 2011, accepted on 18 May 2011 and first published on 28 Jun 2011


Article type: Paper
DOI: 10.1039/C1JM11172H
J. Mater. Chem., 2011,21, 11276-11282

  •   Request permissions

    A facile method to synthesize superparamagnetic and up-conversion luminescent NaYF4:Yb, Er/Tm@SiO2@Fe3O4 nanocomposite particles and their bioapplication

    D. Hu, M. Chen, Y. Gao, F. Li and L. Wu, J. Mater. Chem., 2011, 21, 11276
    DOI: 10.1039/C1JM11172H

Search articles by author

Spotlight

Advertisements