Partial oxidation as a rational approach to kinetic control in bioinspired magnetite synthesis

Chemistry : a European Journal
Cem L AltanNico A J M Sommerdijk

Abstract

Biological systems show impressive control over the shape, size and organization of mineral structures, which often leads to advanced physical properties that are tuned to the function of these materials. Such control is also found in magnetotactic bacteria, which produce-in aqueous medium and at room temperature-magnetite nanoparticles with precisely controlled morphologies and sizes that are generally only accessible in synthetic systems with the use of organic solvents and/or the use of high-temperature methods. The synthesis of magnetite under biomimetic conditions, that is, in water and at room temperature and using polymeric additives as control agents, is of interest as a green production method for magnetic nanoparticles. Inspired by the process of magnetite biomineralization, a rational approach is taken by the use of a solid precursor for the synthesis of magnetite nanoparticles. The conversion of a ferrous hydroxide precursor, which we demonstrate with cryo-TEM and low-dose electron diffraction, is used to achieve control over the solution supersaturation such that crystal growth can be regulated through the interaction with poly-(α,β)-dl-aspartic acid, a soluble, negatively charged polymer. In this way, stable suspe...Continue Reading

References

Jan 1, 1996·Journal of Structural Biology·J R KremerJ R McIntosh
Dec 4, 1998·Science·R E Dunin-BorkowskiP R Buseck
Dec 24, 2002·The Journal of Biological Chemistry·Atsushi ArakakiTadashi Matsunaga
Dec 23, 2004·Journal of the American Chemical Society·Mark KlokkenburgAlbert P Philipse
Feb 6, 2007·Angewandte Chemie·An-Hui LuFerdi Schüth
Dec 17, 2009·Journal of Colloid and Interface Science·Atsushi ArakakiTadashi Matsunaga
Jan 1, 2008·Nanoscale Research Letters·Wei WuChangzhong Jiang
Nov 28, 2012·Journal of Colloid and Interface Science·F VeredaR Hidalgo-Alvarez
Feb 5, 2013·Nature Materials·Jens BaumgartnerDamien Faivre
Feb 7, 2014·Langmuir : the ACS Journal of Surfaces and Colloids·Jens BaumgartnerDamien Faivre

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Citations

Apr 21, 2018·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Yvonne M MosJan Weijma
Jul 8, 2016·Chemical Society Reviews·Giulia MirabelloNico A J M Sommerdijk
Apr 14, 2015·Faraday Discussions·Archan DeyNico A J M Sommerdijk
Oct 23, 2019·Nature Materials·Giulia MirabelloNico A J M Sommerdijk
Sep 1, 2016·Chemical Science·Jos J M LendersNico A J M Sommerdijk

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