Fluorescent polycatecholamine nanostructures as a versatile probe for multiphase systems

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dc.contributor.authorOzhukil Kollath, Vinayaraj
dc.contributor.authorDerakhshandeh, Maziar
dc.contributor.authorMudigonda, Thanmayee
dc.contributor.authorIslam, Muhammad Naoshad
dc.contributor.authorTrifkovic, Milana
dc.contributor.authorKaran, Kunal
dc.contributor.authorMayer, Francis D.
dc.date.accessioned2018-10-09T18:59:58Z
dc.date.available2018-10-09T18:59:58Z
dc.date.issued2018-09-13
dc.description.abstractShape and size controlled nanostructures are critical for nanotechnology and have versatile applications in understanding interfacial phenomena of various multi-phase systems. Facile synthesis of fluorescent nanostructures remains a challenge from conventional precursors. In this study, bio-inspired catecholamines, dopamine (DA), epinephrine (EP) and levodopa (LDA), were used as precursors and fluorescent nanostructures were synthesized via a simple one pot method in a water–alcohol mixture under alkaline conditions. DA and EP formed fluorescent spheres and petal shaped structures respectively over a broad spectrum excitation wavelength, whereas LDA did not form any particular structure. However, the polyepinephrine (PEP) micropetals were formed by weaker interactions as compared to covalently linked polydopamine (PDA) nanospheres, as revealed by NMR studies. Application of these fluorescent structures was illustrated by their adsorption behavior at the oil/water interface using laser scanning confocal microscopy. Interestingly, PDA nanospheres showed complete coverage of the oil/water interface despite its hydrophilic nature, as compared to hydrophobic PEP micropetals which showed a transient coverage of the oil/water interface but mainly self-aggregated in the water phase. The reported unique fluorescent organic structures will play a key role in understanding various multi-phase systems used in aerospace, biomedical, electronics and energy applications.en_US
dc.description.sponsorshipSponsored by the Open Access Authors Funden_US
dc.identifier.citationOzhukil Kollath, V., Derakhshandeh, M., Mayer, F. D., Mudigonda, T., Islam, M. N., Trifkovic, M., & Karan, K. (2018). Fluorescent polycatecholamine nanostructures as a versatile probe for multiphase systems. RSC Advances, 8(56), 31967-31971. doi:10.1039/c8ra05372cen_US
dc.identifier.doi10.1039/C8RA05372Cen_US
dc.identifier.doihttp://dx.doi.org/10.11575/PRISM/35043
dc.identifier.issn2046-2069
dc.identifier.urihttp://hdl.handle.net/1880/108795
dc.language.isoenen_US
dc.publisherRSC Advancesen_US
dc.publisher.departmentChemical & Petroleum Engineeringen_US
dc.publisher.facultySchulich School of Engineeringen_US
dc.publisher.hasversionPublisher's versionen_US
dc.publisher.institutionUniversity of Calgaryen_US
dc.publisher.policyhttp://www.rsc.org/journals-books-databases/open-access/gold-open-access/en_US
dc.rightsUnless otherwise indicated, this material is protected by copyright and has been made available with authorization from the copyright owner. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission.en_US
dc.rights.urihttps://creativecommons.org/licenses/by-nc/4.0en_US
dc.subjectnanotechnologyen_US
dc.subjectfluorescenceen_US
dc.subjectinterfaceen_US
dc.subjectoil in wateren_US
dc.subjectcolloiden_US
dc.subjectmaterialsen_US
dc.subjectspectroscopyen_US
dc.subjectmicroscopyen_US
dc.titleFluorescent polycatecholamine nanostructures as a versatile probe for multiphase systemsen_US
dc.typejournal articleen_US
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