Rationally designed probe for reversible sensing of zinc and application in cells

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dc.contributor.authorHeng, S.
dc.contributor.authorReineck, P.
dc.contributor.authorVidanapathirana, A.
dc.contributor.authorPullen, B.
dc.contributor.authorDrumm, D.
dc.contributor.authorRitter, L.
dc.contributor.authorSchwarz, N.
dc.contributor.authorBonder, C.
dc.contributor.authorPsaltis, P.
dc.contributor.authorThompson, J.
dc.contributor.authorGibson, B.
dc.contributor.authorNicholls, S.
dc.contributor.authorAbell, A.
dc.date.issued2017
dc.descriptionData source: Supporting information, https://doi.org/10.1021/acsomega.7b00923
dc.description.abstractBiologically compatible fluorescent ion sensors, particularly those that are reversible, represent a key tool for answering a range of fundamental biological questions. We report a rationally designed probe with a 6′-fluoro spiropyran scaffold (5) for the reversible sensing of zinc (Zn2+) in cells. The 6′-fluoro substituent overcomes several limitations normally associated with spiropyran-based sensors to provide an improved signal-to-background ratio and faster photoswitching times in aqueous solution. In vitro studies were performed with 5 and the 6′-nitro analogues (6) in HEK 293 and endothelial cells. The new spiropyran (5) can detect exogenous Zn2+ inside both cell types and without affecting the proliferation of endothelial cells. Studies were also performed on dying HEK 293 cells, with results demonstrating the ability of the key compound to detect endogenous Zn2+ efflux from cells undergoing apoptosis. Biocompatibility and photoswitching of 5 were demonstrated within endothelial cells but not with 6, suggesting the future applicability of sensor 5 to study intracellular Zn2+ efflux in these systems.
dc.description.statementofresponsibilitySabrina Heng, Philipp Reineck, Achini K. Vidanapathirana, Benjamin J. Pullen, Daniel W. Drumm, Lesley J. Ritter, Nisha Schwarz, Claudine S. Bonder, Peter J. Psaltis, Jeremy G. Thompson, Brant C. Gibson, Stephen J. Nicholls, and Andrew D. Abell
dc.identifier.citationACS Omega, 2017; 2(9):6201-6210
dc.identifier.doi10.1021/acsomega.7b00923
dc.identifier.issn2470-1343
dc.identifier.issn2470-1343
dc.identifier.orcidVidanapathirana, A. [0000-0003-0126-799X]
dc.identifier.orcidPullen, B. [0000-0001-9718-5088]
dc.identifier.orcidRitter, L. [0000-0001-5942-851X]
dc.identifier.orcidBonder, C. [0000-0001-9875-967X]
dc.identifier.orcidPsaltis, P. [0000-0003-0222-5468]
dc.identifier.orcidThompson, J. [0000-0003-4941-7731]
dc.identifier.orcidNicholls, S. [0000-0002-9668-4368]
dc.identifier.orcidAbell, A. [0000-0002-0604-2629]
dc.identifier.urihttp://hdl.handle.net/2440/109962
dc.language.isoen
dc.publisherAmerican Chemical Society
dc.relation.granthttp://purl.org/au-research/grants/nhmrc/1111630
dc.relation.granthttp://purl.org/au-research/grants/arc/CE140100003
dc.rights© 2017 American Chemical Society. This is an open access article published under an ACS AuthorChoice License, which permits copying and redistribution of the article or any adaptations for non-commercial purposes.
dc.source.urihttps://doi.org/10.1021/acsomega.7b00923
dc.subjectBiocompatible materials; cell and molecular biology; electric properties; electromagnetic wave; fluorescence; fluorescence microscopy; luminescence spectroscopy; optical materials; spectra
dc.titleRationally designed probe for reversible sensing of zinc and application in cells
dc.typeJournal article
pubs.publication-statusPublished

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