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Mihyun Lee, Junsung Rho, Dr. Dong-Eun Lee, Seonki Hong, Sun-Ju Choi, Prof. Phillip B. Messersmith and Prof. Haeshin Lee Water Detoxification by a Substrate-Bound Catecholamine Adsorbent ChemPlusChem 77

Article first published online: 25 SEP 2012 | DOI: 10.1002/cplu.201200209

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A bio-inspired approach for detoxification of water has been investigated. In this approach, three major classes of toxic agents, heavy-metal ions (Cr, Hg, Pb, Cu, and Cd), toxic organic species (4-aminopyridine), and a radioisotope (Lutetium-177) were effectively removed from contaminated water by polydopamine, a mussel-inspired adhesive catecholamine (see figure). In addition, this polydopamine filter was easily regenerated by treatment with acid or hydrogen peroxide.

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