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    High Speed Water Sterilization Using One-Dimensional Nanostructures

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    Type
    Article
    Authors
    Schoen, David T.
    Schoen, Alia P.
    Hu, Liangbing
    Kim, Han Sun
    Heilshorn, Sarah C.
    Cui, Yi cc
    KAUST Grant Number
    KUS-I1-001-12
    Date
    2010-09-08
    Permanent link to this record
    http://hdl.handle.net/10754/598481
    
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    Abstract
    The removal of bacteria and other organisms from water is an extremely important process, not only for drinking and sanitation but also industrially as biofouling is a commonplace and serious problem. We here present a textile based multiscale device for the high speed electrical sterilization of water using silver nanowires, carbon nanotubes, and cotton. This approach, which combines several materials spanning three very different length scales with simple dying based fabrication, makes a gravity fed device operating at 100000 L/(h m2) which can inactivate >98% of bacteria with only several seconds of total incubation time. This excellent performance is enabled by the use of an electrical mechanism rather than size exclusion, while the very high surface area of the device coupled with large electric field concentrations near the silver nanowire tips allows for effective bacterial inactivation. © 2010 American Chemical Society.
    Citation
    Schoen DT, Schoen AP, Hu L, Kim HS, Heilshorn SC, et al. (2010) High Speed Water Sterilization Using One-Dimensional Nanostructures. Nano Lett 10: 3628–3632. Available: http://dx.doi.org/10.1021/nl101944e.
    Sponsors
    D.T.S. acknowledges support from the NDSEG and NSF GRFP fellowship programs. A.P.S. acknowledges support from the Stanford Bio-X graduate fellowship program. The work was made possible by the King Abdullah University of Science and Technology (KAUST) Investigator Award (No. KUS-I1-001-12).
    Publisher
    American Chemical Society (ACS)
    Journal
    Nano Letters
    DOI
    10.1021/nl101944e
    PubMed ID
    20726518
    ae974a485f413a2113503eed53cd6c53
    10.1021/nl101944e
    Scopus Count
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