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Electrochemical interrogation of G3-poly(propylene thiophenoimine) dendritic star polymer in phenanthrene sensing

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dc.date.accessioned 2016-03-02 en
dc.date.accessioned 2020-02-19T16:17:04Z
dc.date.available 2020-02-19T16:17:04Z
dc.date.issued 2016-03-02 en
dc.identifier.uri http://hdl.handle.net/20.500.11910/9374
dc.description.abstract A novel dendritic star-copolymer, generation 3 poly(propylene thiophenoimine) (G3PPT)-co-poly(3-hexylthiophene) (P3HT) star co-polymer on gold electrode (i.e., Au|G3PPT-co-P3HT) was used as a sensor system for the determination of phenanthrene (PHE). The G3PPT-co-P3HT star co-polymer was synthesized via in situ electrochemical co-polymerization of generation 3 poly (propylene thiophenoimine) and poly (3-hexylthiophene) on gold electrode. 1HNMR spectroscopy was used to determine the regioregularity of the polymer composites, whereas Fourier transform infrared spectroscopy and scanning electron microscopy were used to study their structural and morphological properties. Au|G3PPT-co-P3HT in the absence of PHE, exhibited reversible electrochemistry attributable to the oligo (thiophene) 'pendants' of the dendrimer. PHE produced an increase in the voltammetric signals (anodic currents) due to its oxidation on the dendritic material to produce catalytic current, thereby suggesting the suitability of the Au|G3PPT-co-P3HT electrode as a PHE sensor. The electrocatalysis of PHE was made possible by the rigid and planar oligo-P3HT species (formed upon the oxidation of the oligo (thiophene) pendants of the star-copolymer), which allowed the efficient capture (binding) and detection (electrocatalytic oxidation) of PHE molecules. en
dc.format.medium Print en
dc.publisher MDPI AG en
dc.subject STAR-COPOLYMER SENSOR en
dc.subject ELECTROCHEMICAL SCIENCE en
dc.subject VOLTAMMETRY en
dc.title Electrochemical interrogation of G3-poly(propylene thiophenoimine) dendritic star polymer in phenanthrene sensing en
dc.type Journal Article en
dc.description.version Y en
dc.ProjectNumber N/A en
dc.Volume 15 en
dc.BudgetYear 2015/16 en
dc.ResearchGroup Center for Science, Technology and Innovation Indicators en
dc.SourceTitle Sensors en
dc.PlaceOfPublication Basel, Switzerland en
dc.ArchiveNumber 9052 en
dc.PageNumber 22343-363 en
dc.outputnumber 7847 en
dc.bibliographictitle Makelane, H.R., Tovide, O., Sunday, C.E., Waryo, T. & Iwuoha, E.I. (2015) Electrochemical interrogation of G3-poly(propylene thiophenoimine) dendritic star polymer in phenanthrene sensing. <i>Sensors</i>. 15:22343-363. en
dc.publicationyear 2015 en
dc.contributor.author1 Makelane, H.R. en
dc.contributor.author2 Tovide, O. en
dc.contributor.author3 Sunday, C.E. en
dc.contributor.author4 Waryo, T. en
dc.contributor.author5 Iwuoha, E.I. en


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