Immobilization of gold nanoclusters inside porous electrospun fibers for selective detection of Cu(II): A strategic approach to shielding pristine performance

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buir.contributor.authorUyar, Tamer
buir.contributor.orcidUyar, Tamer|0000-0002-3989-4481
dc.citation.volumeNumber5en_US
dc.contributor.authorSenthamizhan A.en_US
dc.contributor.authorCelebioglu A.en_US
dc.contributor.authorBalusamy, B.en_US
dc.contributor.authorUyar, Tameren_US
dc.date.accessioned2016-02-08T11:03:14Z
dc.date.available2016-02-08T11:03:14Z
dc.date.issued2015en_US
dc.departmentNanotechnology Research Center (NANOTAM)en_US
dc.departmentInstitute of Materials Science and Nanotechnology (UNAM)en_US
dc.description.abstractHere, a distinct demonstration of highly sensitive and selective detection of copper (Cu2+) in a vastly porous cellulose acetate fibers (pCAF) has been carried out using dithiothreitol capped gold nanocluster (DTT.AuNC) as fluorescent probe. A careful optimization of all potential factors affecting the performance of the probe for effective detection of Cu2+ were studied and the resultant sensor strip exhibiting unique features including high stability, retained parent fluorescence nature and reproducibility. The visual colorimetric detection of Cu2+ in water, presenting the selective sensing performance towards Cu2+ ions over Zn2+, Cd2+ and Hg2+ under UV light in naked eye, contrast to other metal ions that didn't significantly produce such a change. The comparative sensing performance of DTT.AuNC@pCAF, keeping the nonporous CA fiber (DTT.AuNC@nCAF) as a support matrix has been demonstrated. The resulting weak response of DTT.AuNC@nCAF denotes the lack of ligand protection leading to the poor coordination ability with Cu2+. The determined detection limit (50 ppb) is far lower than the maximum level of Cu2+ in drinking water (1.3 ppm) set by U.S. Environmental Protection Agency (EPA). An interesting find from this study has been the specific oxidation nature between Cu2+ and DTT.AuNC, offering solid evidence for selective sensors.en_US
dc.identifier.doi10.1038/srep15608en_US
dc.identifier.issn2045-2322
dc.identifier.urihttp://hdl.handle.net/11693/26674
dc.language.isoEnglishen_US
dc.publisherNature Publishingen_US
dc.relation.isversionofhttps://doi.org/10.1038/srep15608en_US
dc.source.titleScientific Reportsen_US
dc.titleImmobilization of gold nanoclusters inside porous electrospun fibers for selective detection of Cu(II): A strategic approach to shielding pristine performanceen_US
dc.typeArticleen_US

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