Preparation of Water-Soluble Magnetic Nanocrystals Using Aryl Diazonium Salt Chemistry
Journal of the American Chemical Society2011Vol. 133(6), pp. 1646–1649
Citations Over TimeTop 10% of 2011 papers
Abstract
A novel and facile methodology for the in situ surface functionalization of Fe(3)O(4) nanoparticles is proposed, based on the use of aryl diazonium salts chemistry. The grafting reaction involves the formation of diazoates in a basic medium. These species are unstable and dediazonize along a homolytic pathway to give aryl radicals which further react with the Fe(3)O(4) NPs during their formation and stop their growth. Advantages of the present approach rely not only on the simplicity, rapidity, and efficiency of the procedure but also on the formation of strong Fe(3)O(4)-aryl surface bonds, highly suitable for further applications.
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