Please use this identifier to cite or link to this item: http://ir.niist.res.in:8080/jspui/handle/123456789/583
Title: Synthesis of chemically pure, luminescent Eu3+ doped HAp nanoparticles: A promising fluorescent probe for in vivo imaging applications.
Authors: Hasna, K
Sasanka Kumar, S
Komath, M
Manoj Raama Varma
Jayaraj, M K
Rajeev Kumar, K
Keywords: Optical imaging
Pulsed-laser ablation
Nanophosphors
Fluorescent
Cells
Issue Date: 2013
Publisher: Royal Society of Chemistry
Citation: Physical Chemistry Chemical Physics 15(21):8106-8111;2013
Abstract: The poor solubility, poor biocompatibility and disposal issues make fluorescent quantum dots such as CdSe, CdS, ZnS, InP, InAs, etc. impractical for imaging tissues or intercellular structures. As calcium phosphate is the main inorganic component of human bone and teeth, hydroxyapatite (Ca10(PO4)6(OH)2, HAp) is highly biocompatible and bioactive. Since HAp nanoparticles are not luminescent, a novel inorganic biocompatible fluorescent probe was suggested by doping HAp with lanthanides. Here we report the growth of chemically pure fluorescent HAp nanoparticles synthesized by a new methodology, liquid phase pulsed laser ablation using third harmonics (355 nm) of Nd-YAG laser. Europium doped HAp nanoparticles show emission with prominent peaks at 531 nm, 572 nm, 601 nm and 627 nm upon excitation at a wavelength of 325 nm. The red luminescence could also be observed under visible excitation at 459 nm and is suitable for living cell applications.
URI: http://hdl.handle.net/123456789/583
Appears in Collections:2013

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