Hydrophilic, upconverting, multicolor, lanthanide-doped NaGdF4 nanocrystals as potential multifunctional bioprobes

Feifei Li; Chunguang Li; Xiaomin Liu; Ying Chen; Tianyu Bai; Long Wang; Zhan Shi; Shouhua Feng

doi:10.1002/chem.201201309

Hydrophilic, upconverting, multicolor, lanthanide-doped NaGdF4 nanocrystals as potential multifunctional bioprobes

Chemistry. 2012 Sep 10;18(37):11641-6. doi: 10.1002/chem.201201309. Epub 2012 Aug 7.

Authors

Feifei Li¹, Chunguang Li, Xiaomin Liu, Ying Chen, Tianyu Bai, Long Wang, Zhan Shi, Shouhua Feng

Affiliation

¹ State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, PR China.

PMID: 22886785
DOI: 10.1002/chem.201201309

Abstract

Monodisperse water-soluble hexagonal phase Ln(3+)-doped NaGdF(4) upconverting nanocrystals (UCNCs) have been successfully fabricated by means of a fast, facile, and environmentally friendly microwave-assisted route with polyethylenimine as the surfactant. Fine-tuning of the UC emission from visible to near-IR and finally to white light has been achieved. Furthermore, studies of the magnetic resonance imaging as well as the magnetization (magnetization-magnetic field curves) and the targeted recognition properties of FA-coupled amine-functionalized NaGdF(4)@SiO(2) UCNCs indicate that the obtained NaGdF(4) UCNCs can be potential candidates for dual-mode optical/magnetic bioapplications.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Biosensing Techniques*
Fluorides / chemistry*
Gadolinium / chemistry*
Hydrophobic and Hydrophilic Interactions
Lanthanoid Series Elements / chemistry*
Nanoparticles / chemistry*
Particle Size
Sodium / chemistry*
Surface Properties

Substances

Lanthanoid Series Elements
Sodium
Gadolinium
Fluorides