Encapsulation of living bacteria in electrospun cyclodextrin ultrathin fibers for bioremediation of heavy metals and reactive dye from wastewater

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buir.contributor.authorUyar, Tamer
buir.contributor.orcidUyar, Tamer|0000-0002-3989-4481
dc.citation.epage176en_US
dc.citation.spage169en_US
dc.citation.volumeNumber161en_US
dc.contributor.authorSan-Keskin, Nalan Oyaen_US
dc.contributor.authorÇelebioğlu, Aslıen_US
dc.contributor.authorSarıoğlu, Ömer Faruken_US
dc.contributor.authorUyar, Tameren_US
dc.contributor.authorTekinay, T.en_US
dc.date.accessioned2019-02-21T16:01:27Z
dc.date.available2019-02-21T16:01:27Z
dc.date.issued2018en_US
dc.departmentNanotechnology Research Center (NANOTAM)en_US
dc.departmentInstitute of Materials Science and Nanotechnology (UNAM)en_US
dc.description.abstractCyclodextrins (CD) are cyclic oligosaccharides produced from the enzymatic degradation of starch as a white powder form; on the other hand, they can be transformed into ultrathin electrospun fiber form by electrospinning technique. The electrospun cyclodextrin fibers (CD-F) can be quite attractive materials to encapsulate bacteria for bioremediation purposes. For instance, CD-F not only serve as a carrier matrix but also it serves as a feeding source for the encapsulated bacteria. In the present study, we demonstrate a facile approach by encapsulation of bacteria into CD-F matrix for wastewater treatment application. The natural and non-toxic properties of CD-F render a better bacterial viability for fibrous biocomposite. The encapsulated bacteria in CD-F exhibit cell viability for more than 7 days at 4 °C storage condition. Furthermore, we have tested the bioremediation capability of bacteria/CD-F biocomposite for the treatment of heavy metals (Nickel(II) and Chromium(VI)) and textile dye (Reactive Black 5, RB5). The bacteria/CD-F biocomposite has shown removal efficiency of Ni(II), Cr(VI) and RB5 as 70 ± 0.2%, 58 ± 1.4% and 82 ± 0.8, respectively. As anticipated, the pollutants removal capabilities of the bacteria/CD-F was higher compare to free bacteria since bacteria can use CD as an extra carbon source which promotes their growth rate. This study demonstrates that CD-F are suitable platforms for the encapsulation of bacterial cells to develop novel biocomposites that have bioremediation capabilities for wastewater treatment.
dc.description.sponsorshipThe Scientific and Technological Research Council of Turkey (TUBITAK, project #114Y264) is acknowledged for funding the research. Dr. Uyar acknowledges The Turkish Academy of Sciences - Outstanding Young Scientists Award Program (TUBA-GEBIP) for partial funding of the research. A. Celebioglu acknowledges TUBITAK project #113Y348 for a postdoctoral fellowship. O.F. Sarioglu acknowledges TUBITAK BIDEB (2211-C) for National Ph.D. Scholarship. Appendix A
dc.embargo.release2020-01-01en_US
dc.identifier.doi10.1016/j.colsurfb.2017.10.047
dc.identifier.issn0927-7765
dc.identifier.urihttp://hdl.handle.net/11693/49848
dc.language.isoEnglish
dc.publisherElsevier B.V.
dc.relation.isversionofhttps://doi.org/10.1016/j.colsurfb.2017.10.047
dc.relation.project113Y348 - 114Y264 - 2211-C
dc.source.titleColloids and Surfaces B: Biointerfacesen_US
dc.subjectBacteriaen_US
dc.subjectCyclodextrinen_US
dc.subjectElectrospinningen_US
dc.subjectEncapsulationen_US
dc.subjectHeavy metalsen_US
dc.subjectNanofibersen_US
dc.subjectReactive dyeen_US
dc.titleEncapsulation of living bacteria in electrospun cyclodextrin ultrathin fibers for bioremediation of heavy metals and reactive dye from wastewateren_US
dc.typeArticleen_US

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