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

Linehan, Keith; Carolan, Darragh; Doyle, Hugh

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

dc.check.date	2020-02-27
dc.check.info	Access to this article is restricted until 12 months after publication by request of the publisher.	en
dc.contributor.author	Linehan, Keith
dc.contributor.author	Carolan, Darragh
dc.contributor.author	Doyle, Hugh
dc.contributor.funder	Seventh Framework Programme	en
dc.contributor.funder	Higher Education Authority	en
dc.date.accessioned	2019-03-19T11:54:21Z
dc.date.available	2019-03-19T11:54:21Z
dc.date.issued	2019-02-27
dc.date.updated	2019-03-19T11:38:39Z
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.description.status	Peer reviewed	en
dc.description.version	Accepted Version	en
dc.format.mimetype	application/pdf	en
dc.identifier.articleid	1900034
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.doi	10.1002/ppsc.201900034
dc.identifier.endpage	8	en
dc.identifier.issn	0934-0866
dc.identifier.issn	1521-4117
dc.identifier.journaltitle	Particle and Particle Systems Characterization	en
dc.identifier.startpage	1	en
dc.identifier.uri	https://hdl.handle.net/10468/7640
dc.language.iso	en	en
dc.publisher	John Wiley & Sons, Inc.	en
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
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