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Wiley, Macromolecular Rapid Communications, 18(31), p. 1608-1615, 2010

DOI: 10.1002/marc.201000193

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Biomimetic Mussel Adhesive Inspired Clickable Anchors Applied to the Functionalization of Fe3O4 Nanoparticles

This paper is available in a repository.
This paper is available in a repository.

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Abstract

The functionalization of magnetite (Fe(3) O(4) ) nanoparticles with dopamine-derived clickable biomimetic anchors is reported. Herein, an alkyne-modified catechol-derivative is employed as the anchor, as i) the catechol-functional anchor groups possess irreversible covalent binding affinity to Fe(3) O(4) nanoparticles, and ii) the alkyne terminus enables further functionalization of the nanoparticles by the grafting-onto approach with various possibilities offered by 'click' chemistry. In the present work, azido-end group functionalized Rhodamine and poly(ethylene glycol) (PEG) are utilized to coat the iron oxide nanoparticles to make them fluorescent and water soluble.