Nanoliter-scale, regenerable ion sensor: sensing with a surface functionalized microstructured optical fibre

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dc.contributor.authorHeng, S.
dc.contributor.authorNguyen, M.
dc.contributor.authorKostecki, R.
dc.contributor.authorMonro, T.
dc.contributor.authorAbell, A.
dc.date.issued2013
dc.description.abstractThe first nanoliter-scale regenerable ion sensor based on a microstructured optical fibre (MOF) is reported. The air holes of the MOF are functionalized with a monoazacrown bearing spiropyran to give a switchable sensor that detects lithium ions down to 100 nM in nanoliter-scale volumes. Ion binding is turned on and off on upon irradiation with light, with the sensor being unaffected by multiple rounds of photoswitching. Unbound ions are flushed from the fibre in the ‘off’ state to allow the sensor to be reused. The integration of an ionophore into the sensor paves the way for the development of highly specific light-based sensing platforms that are readily adaptable to sense a particular ion simply by altering the ionophore design.
dc.description.statementofresponsibilitySabrina Heng, Mai-Chi Nguyen, Roman Kostecki, Tanya M. Monro and Andrew D. Abell
dc.identifier.citationRSC Advances: an international journal to further the chemical sciences, 2013; 3(22):8308-8317
dc.identifier.doi10.1039/c3ra40321a
dc.identifier.issn2046-2069
dc.identifier.issn2046-2069
dc.identifier.orcidKostecki, R. [0000-0001-5822-8401]
dc.identifier.orcidAbell, A. [0000-0002-0604-2629]
dc.identifier.urihttp://hdl.handle.net/2440/89482
dc.language.isoen
dc.publisherRoyal Society of Chemistry
dc.relation.grantARC
dc.relation.replaceshttp://hdl.handle.net/2440/78385
dc.relation.replaces2440/78385
dc.rights© The Royal Society of Chemistry
dc.source.urihttps://doi.org/10.1039/c3ra40321a
dc.titleNanoliter-scale, regenerable ion sensor: sensing with a surface functionalized microstructured optical fibre
dc.typeJournal article
pubs.publication-statusPublished

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