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Synthesis of Semi-Conducting Nanoparticles within a Protein Template

Published online by Cambridge University Press:  11 February 2011

Kim K. W. Wong  and
Eric L. Mayes
Kim K. W. Wong
Affiliation:
NanoMagnetics Ltd., 108 Longmead Road, Bristol, BS16 7FG, United Kingdom
Eric L. Mayes
Affiliation:
NanoMagnetics Ltd., 108 Longmead Road, Bristol, BS16 7FG, United Kingdom
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Abstract

The ability to synthesise and tune photoresponsive and photoredox II-VI semi-conductor nanoparticles by quantum confinement is a continuously and rapidly developing area. Chemical methods are useful in producing dispersions of nanoparticles of uniform size in many organic solvents. Such synthetic methods employ the use of reverse micelles [1,2], phospholipid vesicles[3,4] or capping agents[5,6]to restrict particle size and growth to the nanometre regime.

The production of super lattice assemblies, through, for example the use of controlled crystallisation [7], Langmuir monolayers[8], Langmuir Blogget films[9], and self assembled short chain dithiol monolayers[10] on gold substrates has also received attention in the past. This latter approach potentially opens the way for self assembled electro-luminescent devices[11].

The ability to couple organic self assembly and inorganic nano-synthesis could also provide a route toward the chemical synthesis of an organised array of quantum-confined semiconductors. An aspect of this synthesis with construction approach is the possible coupling of biological templating systems to produce biomimetic materials [12,13]. In fact, an example would be the stabilised CdS nanoparticles in yeast binding to phytochelatin peptides which are secreted in response to metal toxicification [14].

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 737 , 2002 , E15.3
Copyright
Copyright © Materials Research Society 2003

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References

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