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Synthesis and Cytotoxicity of Luminescent InP Quantum Dots

Published online by Cambridge University Press:  31 January 2011

Yuxuan Wang ,
Chai Hoon Quek ,
Kam W. Leong  and
Jiye Fang
Yuxuan Wang
Affiliation:
ywang5@binghamton.edu, State University of New York at Binghamton, Binghamton, New York, United States
Chai Hoon Quek
Affiliation:
cq4@duke.edu, Duke University, Durham, North Carolina, United States
Kam W. Leong
Affiliation:
kam.leong@duke.edu, Duke University, Durham, North Carolina, United States
Jiye Fang
Affiliation:
jfang@binghamton.edu, United States
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Abstract

As a potential biological imaging probe with a long-wavelength of emission, InP quantum dots were prepared via a high-temperature organic solution approach, and successfully transferred into an aqueous system through a ligand-exchange process using various functional surfactants. Photoluminescence and X-ray characterizations confirmed the desired properties of the InP quantum dots. The cytotoxicity of the water-soluble InP quantum dots against phaeochromocytoma PC12 cells as evaluated by the MTS cell viability assay was low relative to a positive control, poly(ethyleneimine). This study suggests a bright potential for this new type of InP quantum dots in bioimaging applications.

Keywords

III-Voptical propertiesbiomaterial
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1241: Symposium XX – Biological Imaging and Sensing Using Nanoparticle Assemblies , 2009 , 1241-XX02-04
Copyright
Copyright © Materials Research Society 2010

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