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Water Detoxification by a Substrate-Bound Catecholamine Adsorbent

Authors

  • Mihyun Lee,

    1. Department of Chemistry, The Graduate School of Nanoscience and Technology, Korea Advanced Institute of Science and Technology (KAIST), 335 Science Rd. Daejeon, 305-701 (South Korea), Fax: (+82) 42-350-2810
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    • These authors contributed equally to this work.

  • Junsung Rho,

    1. Biomedical Engineering, Materials Science and Engineering, Chemical and Biological Engineering Department, Northwestern University, Evanston, IL 60208 (USA), Fax: (+1) 847-491-4928
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    • These authors contributed equally to this work.

  • Dr. Dong-Eun Lee,

    1. Radioisotope Research Division, Research Reactor Utilization and Development, KAERI, Daejeon, 305-353 (South Korea)
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  • Seonki Hong,

    1. Department of Chemistry, The Graduate School of Nanoscience and Technology, Korea Advanced Institute of Science and Technology (KAIST), 335 Science Rd. Daejeon, 305-701 (South Korea), Fax: (+82) 42-350-2810
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  • Sun-Ju Choi,

    1. Radioisotope Research Division, Research Reactor Utilization and Development, KAERI, Daejeon, 305-353 (South Korea)
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  • Prof. Phillip B. Messersmith,

    Corresponding author
    1. Biomedical Engineering, Materials Science and Engineering, Chemical and Biological Engineering Department, Northwestern University, Evanston, IL 60208 (USA), Fax: (+1) 847-491-4928
    • Biomedical Engineering, Materials Science and Engineering, Chemical and Biological Engineering Department, Northwestern University, Evanston, IL 60208 (USA), Fax: (+1) 847-491-4928
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  • Prof. Haeshin Lee

    Corresponding author
    1. Department of Chemistry, The Graduate School of Nanoscience and Technology, Korea Advanced Institute of Science and Technology (KAIST), 335 Science Rd. Daejeon, 305-701 (South Korea), Fax: (+82) 42-350-2810
    • Department of Chemistry, The Graduate School of Nanoscience and Technology, Korea Advanced Institute of Science and Technology (KAIST), 335 Science Rd. Daejeon, 305-701 (South Korea), Fax: (+82) 42-350-2810
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Abstract

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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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