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Biomimetic Approach to the Formation of Magnetic Nanoparticle/Silica Core/Shell Structures

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We report a mild method for constructing magnetic iron oxide nanoparticle (IONP)/silica core/shell hybrid structures by biomimetic silicification of silicic acids. 2-(Dimethylamino)ethyl methacrylate (DMAEMA) was grafted onto the surface of IONPs via surface-initiated, atom transfer radical polymerization, and then silica shells were subsequently formed by biomimetic polycondensation of silicic acids with poly(DMAEMA) as an organic template for the formation of silica structures. The resulting IONP/silica hybrids were characterized by Fourier-transform infrared spectroscopy and transmission electron microscopy.
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Keywords: BIOSILICIFICATION; MAGNETIC NANOPARTICLE; SILICA SHELL

Document Type: Research Article

Publication date: 2008-10-01

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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