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Australian Journal of Chemistry Australian Journal of Chemistry Society
An international journal for chemical science
RESEARCH ARTICLE

Novel Phosphopeptides as Surface-Active Agents in Iron Nanoparticle Synthesis

Raoul Peltier A D , Wai Ruu Siah B D , Grant V. M. Williams C D , Margaret A. Brimble A E F , Richard D. Tilley B D and David E. Williams A D
+ Author Affiliations
- Author Affiliations

A School of Chemical Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand.

B School of Chemical and Physical Science, Victoria University of Wellington, Wellington 6012, New Zealand.

C Industrial Research Ltd, Petone, Wellington 5040, New Zealand.

D MacDiarmid Institute for Advanced Materials and Nanotechnology, Victoria University of Wellington, PO Box 600, Wellington 6140, New Zealand.

E Maurice Wilkins Centre for Molecular Biodiscovery, The University of Auckland, School of Biological Sciences, Auckland 1010, New Zealand.

F Corresponding author. Email: m.brimble@auckland.ac.nz

Australian Journal of Chemistry 65(6) 680-685 https://doi.org/10.1071/CH12168
Submitted: 23 March 2012  Accepted: 17 April 2012   Published: 29 May 2012

Abstract

We report the dramatic effect of rationally-designed phosphopeptides on the size and shape of iron-iron oxide core-shell nanoparticles prepared in a one-pot synthesis by sodium borohydride reduction of an iron salt. These phosphopeptides are effective at small ratios of peptide to metal, in contrast to the behaviour of conventional capping agents, which must be added at high concentration to control the particle growth.


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