Please use this identifier to cite or link to this item: https://libjncir.jncasr.ac.in/xmlui/handle/10572/2486
Full metadata record
DC FieldValueLanguage
dc.contributor.authorDwivedi, Atul K.
dc.contributor.authorPandeeswar, M.
dc.contributor.authorGovindaraju, T.
dc.date.accessioned2017-02-21T08:56:25Z-
dc.date.available2017-02-21T08:56:25Z-
dc.date.issued2014
dc.identifier.citationDwivedi, AK; Pandeeswar, M; Govindaraju, T, Assembly Modulation of PDI Derivative as a Supramolecular Fluorescence Switching Probe for Detection of Cationic Surfactant and Metal Ions in Aqueous Media. ACS Applied Materials & Interfaces 2014, 6 (23) 21369-21379, http://dx.doi.org/10.1021/am5063844en_US
dc.identifier.citationACS Applied Materials & Interfacesen_US
dc.identifier.citation6en_US
dc.identifier.citation23en_US
dc.identifier.issn1944-8244
dc.identifier.urihttps://libjncir.jncasr.ac.in/xmlui/10572/2486-
dc.descriptionRestricted Accessen_US
dc.description.abstractWe report an amphiphilic perylene diimide (1), a bimolecular analog of L-3,4-dihydroxyphenylalanine (L-DOPA), as a reversible fluorescence switching probe for the detection and sensing of cationic surfactants and Fe3+/Cu2+ in an aqueous media respectively by means of host-guest interactions driven assembly and disassembly of 1. Photophysical studies of 1, going from dimethyl sulfoxide (DMSO) (State-I) to pure aqueous medium (State-II), suggested the formation of self-assembled aggregates by displaying very weak fluorescence emission along with red shifted broad absorption bands. Interestingly, the cationic surfactant cetyltrimethylammonium bromide (CTAB) could disassemble 1 in miceller conditions by restoring bright yellow fluorescence and vibronically well-defined (Franck-Condon progressions A(0-0)/A(0-1) approximate to 1.6) absorption bands of 1 over other neutral and anionic surfactants (State-III). Owing to the metal chelating nature of L-DOPA, 1 was able to sense Fe3+ and Cu2+ among a pool of other metal ions by means of fluorescence switching off state, attributed to metal interaction driven assembly of 1 (State-IV). Such metallosupramolecular assemblies were found to reverse back to the fluorescence switching on state using a metal ion chelator, diethylenetriaminepentaacetic acid (DTPA, State-III), further signifying the role of metal ions toward assembly of 1. Formation of assembly and disassembly could be visualized by the diminished and increased yellow emission under green laser light. Further, the assembly-disassembly modulation of 1 has been extensively characterized using infrared (IR), mass spectrometry, microscopy and dynamic light scattering (DLS) techniques. Therefore, modulation of the molecular self-assembly of PDI derivative 1 in aqueous media (assembled state, State-II) by means of host-guest interactions provided by micellar structures of CTAB (disassembled state, State-III), metal ion (Fe3+ and Cu2+) interactions (assembled state, State-IV) and metal ion sequestration using DTPA (disassembled state, State-III) is viewed as a supramolecular reversible fluorescence switching off-on probe for cationic surfactant CTAB and Fe3+/Cu2+.en_US
dc.description.urihttp://dx.doi.org/10.1021/am5063844en_US
dc.language.isoEnglishen_US
dc.publisherAmerican Chemical Societyen_US
dc.rights@American Chemical Society, 2014en_US
dc.subjectNanoscience & Nanotechnologyen_US
dc.subjectMaterials Scienceen_US
dc.subjectAssembly Modulationen_US
dc.subjectCationic Surfactanten_US
dc.subjectMicellar Mediaen_US
dc.subjectFluorescence Switchingen_US
dc.subjectMetallosupramolecular Aggregatesen_US
dc.subjectMolecular-Organizationen_US
dc.subjectNaphthalene Diimideen_US
dc.subjectPerylene Bisimideen_US
dc.subjectSolar-Cellsen_US
dc.subjectWateren_US
dc.subjectSensoren_US
dc.subjectSolventsen_US
dc.subjectDyesen_US
dc.subjectAggregationen_US
dc.subjectCu2+en_US
dc.titleAssembly Modulation of PDI Derivative as a Supramolecular Fluorescence Switching Probe for Detection of Cationic Surfactant and Metal Ions in Aqueous Mediaen_US
dc.typeArticleen_US
Appears in Collections:Research Papers (Govindaraju, T.)

Files in This Item:
File Description SizeFormat 
27.pdf
  Restricted Access
5.49 MBAdobe PDFView/Open Request a copy


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.