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dc.contributor.authorBai, S.*
dc.contributor.authorDebnath, S.*
dc.contributor.authorJavid, Nadeem*
dc.contributor.authorFrederix, P.W.J.M.*
dc.contributor.authorFleming, S.*
dc.contributor.authorPappas, C.G.*
dc.contributor.authorUlijn, R.V.*
dc.date.accessioned2017-02-21T10:11:01Z
dc.date.available2017-02-21T10:11:01Z
dc.date.issued2014-07-01
dc.identifier.citationBai S, Debnath S, Javid N et al (2014) Differential Self-Assembly and Tunable Emission of Aromatic Peptide Bola-Amphiphiles Containing Perylene Bisimide in Polar Solvents Including Water. Langmuir. 30(25): 7576-7584.en_US
dc.identifier.urihttp://hdl.handle.net/10454/11429
dc.descriptionNoen_US
dc.description.abstractWe demonstrate the self-assembly of bola-amphiphile-type conjugates of dipeptides and perylene bisimide (PBI) in water and other polar solvents. Depending on the nature of the peptide used (glycine-tyrosine, GY, or glycine-aspartic acid, GD), the balance between H-bonding and aromatic stacking can be tailored. In aqueous buffer, PBI-[GY]2 forms chiral nanofibers, resulting in the formation of a hydrogel, while for PBI-[GD]2 achiral spherical aggregates are formed, demonstrating that the peptide sequence has a profound effect on the structure formed. In water and a range of other polar solvents, self-assembly of these two PBI-peptides conjugates results in different nanostructures with highly tunable fluorescence performance depending on the peptide sequence employed, e.g., fluorescent emission and quantum yield. Organogels are formed for the PBI-[GD]2 derivative in DMF and DMSO while PBI-[GY]2 gels in DMF. To the best of our knowledge, this is the first successful strategy for using short peptides, specifically, their sequence/structure relationships, to manipulate the PBI nanostructure and consequent optical properties. The combination of controlled self-assembly, varied optical properties, and formation of aqueous and organic gel-phase materials may facilitate the design of devices for various applications related to light harvesting and sensing.en_US
dc.language.isoenen_US
dc.relation.isreferencedbyhttp://dx.doi.org/10.1021/la501335een_US
dc.subjectPeptide; Emission; Self-assembly; Gelsen_US
dc.titleDifferential Self-Assembly and Tunable Emission of Aromatic Peptide Bola-Amphiphiles Containing Perylene Bisimide in Polar Solvents Including Wateren_US
dc.status.refereedYesen_US
dc.date.application2014-06-09
dc.typeArticleen_US
dc.type.versionNo full-text in the repositoryen_US


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