Nano Archive

Silica-Encapsulated Efficient and Stable Si Quantum Dots with High Biocompatibility

Amato, G. (2010) Silica-Encapsulated Efficient and Stable Si Quantum Dots with High Biocompatibility. Nanoscale Research Letters, 5 (7). pp. 1156-1160.

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Official URL: http://www.springerlink.com/content/g36770h3537127...

Abstract

A facile fabrication method to produce biocompatible semiconductor Quantum Dots encapsulated in high quality and thick thermal oxide is presented. The process employs sonication of porous Si/SiO2 structures to produce flakes with dimension in the 50–200 nm range. These flakes show a coral-like SiO2 skeleton with Si nanocrystals embedded in and are suitable for functionalization with other diagnostic or therapeutic agents. Silicon is a biocompatible material, efficiently cleared from the human body. The Photoluminescence emission falls in the transparency window for living tissues and is found to be bright and stable for hours in the aggressive biological environment.

Item Type:Article
Subjects:Physical Science > Nanophysics
Physical Science > Nano objects
Material Science > Nanochemistry
Material Science > Nanostructured materials
Divisions:Faculty of Engineering, Science and Mathematics > School of Physics
Faculty of Engineering, Science and Mathematics > School of Chemistry
ID Code:9371
Deposited By:JNCASR
Deposited On:30 Sep 2010 09:22
Last Modified:30 Sep 2010 09:22

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