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Magnetic nano-nets for capture of microbes in solution based on physical contact

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dc.contributor.authorGuruprasad, Venkatesh S.
dc.contributor.authorMaheshwari, Vivek
dc.date.accessioned2018-10-11T14:36:54Z
dc.date.available2018-10-11T14:36:54Z
dc.date.issued2019-02-01
dc.descriptionThe final publication is available at Elsevier via https://dx.doi.org/10.1016/j.jcis.2018.09.079 © 2019. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/en
dc.description.abstractSelf-assembly of Au nanoparticles with Fe ions is used to develop magnetic nano-nets similar to fishing nets for capture and removal of microbes in aqueous medium. The nano-nets have a high aspect ratio, span microns in length with openings of 80–300 nm. This allows them to sample the liquid medium even at low volume fraction and also entrap the microbes in the solution. The nets and the trapped microbes can be effectively pulled from the solution by using an off the shelf magnet. Since the capture is based on physical contact, the nano-nets overcome the ability of the microbes to develop resistance to the cytotoxic effects of chemical compounds and nanomaterials. Using the nano-nets an absolute inactivation of 0.9 is achieved in 5 min. in a non-deaerated solution with Escherichia coli (E. coli). Further the removal of the nano-nets along with the captured microbes also predominantly eliminates the nanomaterial from the aqueous medium for future use.en
dc.description.sponsorshipNatural Sciences and Engineering Research Council of Canadaen
dc.description.sponsorshipCanada Foundation for Innovationen
dc.description.sponsorshipOntario Ministry of Research, Innovation and Scienceen
dc.description.sponsorshipUniversity of Waterlooen
dc.identifier.urihttps://dx.doi.org/10.1016/j.jcis.2018.09.079
dc.identifier.urihttp://hdl.handle.net/10012/13993
dc.language.isoenen
dc.publisherElsevieren
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectGold nanoparticlesen
dc.subjectMagnetic chainsen
dc.subjectNano-netsen
dc.subjectSelf-assemblyen
dc.subjectWater purificationen
dc.titleMagnetic nano-nets for capture of microbes in solution based on physical contacten
dc.typeArticleen
dcterms.bibliographicCitationGuruprasad, V. S., & Maheshwari, V. (2019). Magnetic nano-nets for capture of microbes in solution based on physical contact. Journal of Colloid and Interface Science, 535, 33–40. doi:10.1016/j.jcis.2018.09.079en
uws.contributor.affiliation1Faculty of Scienceen
uws.contributor.affiliation2Chemistryen
uws.contributor.affiliation2Waterloo Institute for Nanotechnology (WIN)en
uws.peerReviewStatusRevieweden
uws.scholarLevelFacultyen
uws.typeOfResourceTexten
uws.typeOfResourceTexten

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