Highly selective optical detection of Fe3+ ions in aqueous solution using label-free silicon nanocrystals

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dc.contributor.author Linehan, Keith
dc.contributor.author Carolan, Darragh
dc.contributor.author Doyle, Hugh
dc.date.accessioned 2019-03-19T11:54:21Z
dc.date.available 2019-03-19T11:54:21Z
dc.date.issued 2019-02-27
dc.identifier.citation Linehan, K., Carolan, D. and Doyle, H. (2019) 'Highly selective optical detection of Fe3+ ions in aqueous solution using label-free silicon nanocrystals', Particle and Particle Systems Characterization, 1900034 (8pp), doi:10.1002/ppsc.201900034 en
dc.identifier.startpage 1 en
dc.identifier.endpage 8 en
dc.identifier.issn 0934-0866
dc.identifier.issn 1521-4117
dc.identifier.uri http://hdl.handle.net/10468/7640
dc.identifier.doi 10.1002/ppsc.201900034
dc.description.abstract High brightness amine‐terminated silicon nanocrystals (Si NCs) have been utilized in a simple and rapid assay for the highly selective and sensitive detection of Fe3+ via quenching of their strong blue luminescence, without the need for analyte‐specific labeling groups. Sensitive detection of Fe3+ is successfully demonstrated, with a linear relationship observed between luminescence quenching and Fe3+ concentration from 5 × 10−6 to 900 × 10−6m and a limit of detection of 1.3 × 10−6m. The Si NCs show excellent selectivity toward Fe3+ ions, with no quenching of the luminescence signal induced by the presence of Fe2+ ions, allowing for solution phase discrimination between the ionic species in different charge states. en
dc.description.sponsorship Higher Education Authority (PRTLI Program Cycle 3 “Nanoscience” and Cycle 4 “INSPIRE”) en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher John Wiley & Sons, Inc. en
dc.relation.uri https://onlinelibrary.wiley.com/doi/abs/10.1002/ppsc.201900034
dc.rights © 2019, WILEY-VCH Verlag GmbH & Co. This is the peer reviewed version of the following article: Linehan, K., Carolan, D. and Doyle, H. (2019) 'Highly selective optical detection of Fe3+ ions in aqueous solution using label-free silicon nanocrystals', Particle and Particle Systems Characterization, 1900034 (8pp), doi:10.1002/ppsc.201900034, which has been published in final form at https://doi.org/10.1002/ppsc.201900034. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. en
dc.subject Iron en
dc.subject Nanocrystal en
dc.subject Optical detection en
dc.subject Sensor en
dc.title Highly selective optical detection of Fe3+ ions in aqueous solution using label-free silicon nanocrystals en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother Hugh Doyle, Tyndall Micronano Electronics, University College Cork, Cork, Ireland. +353-21-490-3000 Email: hugh.doyle@tyndall.ie en
dc.internal.availability Full text available en
dc.check.info Access to this article is restricted until 12 months after publication by request of the publisher. en
dc.check.date 2020-02-27
dc.date.updated 2019-03-19T11:38:39Z
dc.description.version Accepted Version en
dc.internal.rssid 478089173
dc.contributor.funder Seventh Framework Programme en
dc.contributor.funder Higher Education Authority en
dc.description.status Peer reviewed en
dc.identifier.journaltitle Particle and Particle Systems Characterization en
dc.internal.copyrightchecked Yes en
dc.internal.licenseacceptance Yes en
dc.internal.IRISemailaddress hugh.doyle@tyndall.ie en
dc.identifier.articleid 1900034
dc.internal.bibliocheck In press. Check vol / issue / page range. Amend citation as necessary.
dc.relation.project info:eu-repo/grantAgreement/EC/FP7::SP1::NMP/263091/EU/Hybrid Molecule-Nanocrystal Assemblies for Photonic and Electronic Sensing Applications/HYSENS en
dc.relation.project info:eu-repo/grantAgreement/EC/FP7::SP1::SEC/261809/EU/Development of a Common Sensor Platform for the Detection of IED en
dc.relation.project info:eu-repo/grantAgreement/EC/FP7::SP1::NMP/246310/EU/Semiconductor Nanomaterial for Advanced Photovoltaic Solar cells Using New concept of nanocrystal and conductive host/SNAPSUN en


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