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dc.contributor.authorPourfallah, Ghazaleh
dc.contributor.authorLou, Xia
dc.date.accessioned2018-06-29T12:26:20Z
dc.date.available2018-06-29T12:26:20Z
dc.date.created2018-06-29T12:08:47Z
dc.date.issued2018
dc.identifier.citationPourfallah, G. and Lou, X. 2018. Novel 4-amino-2-methyl-8-(trifluoromethyl)quinoline-based magnetic nanostructures for highly sensitive detection of zinc ions in aqueous solutions. Dyes and Pigments. 158: pp. 12-19.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/68605
dc.identifier.doi10.1016/j.dyepig.2018.05.021
dc.description.abstract

© 2018 Elsevier Ltd. Novel 4-amino-2-methyl-8-(trifluoromethyl)quinoline based magnetic nanosensors, Fe3O4@SiO2-PEG-4AQ and Fe3O4@SiO2-4AQ, were successfully fabricated and characterised. Enhanced fluorescent intensity was demonstrated by both nanosensors. Upon complexation with zinc ions, a further enhancement of 13.5-fold was revealed by Fe3O4@SiO2-PEG-4AQ. A red shift of 42 nm was also observed. The presence of other metal cations including Ni2+, Co2+, Ca2+, Cd2+, Hg2+, Mg2+, Mn2+and Ag+, showed no interference towards Zn2+. A sensitive detection limit of 0.0065 µM and 0.0125 µM was indicated by Fe3O4@SiO2-PEG-4AQ and Fe3O4@SiO2-4AQ respectively. The high sensitivity and selectivity remained constant within a wide range of pH values and were reversible upon treatment with EDTA. The PEG spacer between the magnetic core and the fluorophore offered further improvement of fluorescence intensity and detection sensitivity. To the best of our knowledge, this is the first study on 4-aminoquinoline based reusable nanochemosensor for zinc ion detection.

dc.publisherElsevier
dc.titleNovel 4-amino-2-methyl-8-(trifluoromethyl)quinoline-based magnetic nanostructures for highly sensitive detection of zinc ions in aqueous solutions
dc.typeJournal Article
dcterms.source.volume158
dcterms.source.startPage12
dcterms.source.endPage19
dcterms.source.issn0143-7208
dcterms.source.titleDyes and Pigments
curtin.departmentWASM: Minerals, Energy and Chemical Engineering (WASM-MECE)
curtin.accessStatusFulltext not available


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