The design and fabrication of supramolecular semiconductor nanowires formed by benzothienobenzothiophene (BTBT)-conjugated peptides

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buir.contributor.authorGüler, Mustafa O.
dc.citation.epage9995en_US
dc.citation.issueNumber21en_US
dc.citation.spage9987en_US
dc.citation.volumeNumber10en_US
dc.contributor.authorKhalily, M. A.en_US
dc.contributor.authorUsta, H.en_US
dc.contributor.authorOzdemir, M.en_US
dc.contributor.authorBakan, G.en_US
dc.contributor.authorDikecoglu, F. B.en_US
dc.contributor.authorEdwards-Gayle, C.en_US
dc.contributor.authorHutchinson, J. A.en_US
dc.contributor.authorHamley, I. W.en_US
dc.contributor.authorDana, A.en_US
dc.contributor.authorGüler, Mustafa O.en_US
dc.date.accessioned2019-02-21T16:02:50Z
dc.date.available2019-02-21T16:02:50Z
dc.date.issued2018en_US
dc.departmentInstitute of Materials Science and Nanotechnology (UNAM)en_US
dc.departmentNanotechnology Research Center (NANOTAM)en_US
dc.description.abstractπ-Conjugated small molecules based on a [1]benzothieno[3,2-b]benzothiophene (BTBT) unit are of great research interest in the development of solution-processable semiconducting materials owing to their excellent charge-transport characteristics. However, the BTBT π-core has yet to be demonstrated in the form of electro-active one-dimensional (1D) nanowires that are self-assembled in aqueous media for potential use in bioelectronics and tissue engineering. Here we report the design, synthesis, and self-assembly of benzothienobenzothiophene (BTBT)-peptide conjugates, the BTBT-peptide (BTBT-C3-COHN-Ahx-VVAGKK-Am) and the C8-BTBT-peptide (C8-BTBT-C3-COHN-Ahx-VVAGKK-Am), as β-sheet forming amphiphilic molecules, which self-assemble into highly uniform nanofibers in water with diameters of 11-13(±1) nm and micron-size lengths. Spectroscopic characterization studies demonstrate the J-type π-π interactions among the BTBT molecules within the hydrophobic core of the self-assembled nanofibers yielding an electrical conductivity as high as 6.0 × 10-6 S cm-1. The BTBT π-core is demonstrated, for the first time, in the formation of self-assembled peptide 1D nanostructures in aqueous media for potential use in tissue engineering, bioelectronics and (opto)electronics. The conductivity achieved here is one of the highest reported to date in a non-doped state.
dc.description.provenanceMade available in DSpace on 2019-02-21T16:02:50Z (GMT). No. of bitstreams: 1 Bilkent-research-paper.pdf: 222869 bytes, checksum: 842af2b9bd649e7f548593affdbafbb3 (MD5) Previous issue date: 2018en
dc.description.sponsorshipThis work was partially supported by TUBITAK 114Z753 and the EPSRC Platform Grant EP/L020599/1. We are grateful to the ESRF for the award of beamtime (ref. MX-1918).
dc.identifier.doi10.1039/c8nr01604f
dc.identifier.issn2040-3364
dc.identifier.urihttp://hdl.handle.net/11693/50047
dc.language.isoEnglish
dc.publisherRoyal Society of Chemistry
dc.relation.isversionofhttps://doi.org/10.1039/c8nr01604f
dc.relation.projectEuropean Synchrotron Radiation Facility, ESRF: MX-1918 - EP/L020599/1 - 114Z753
dc.source.titleNanoscaleen_US
dc.titleThe design and fabrication of supramolecular semiconductor nanowires formed by benzothienobenzothiophene (BTBT)-conjugated peptidesen_US
dc.typeArticleen_US

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Institute of Materials Science and Nanotechnology (UNAM)
Nanotechnology Research Center (NANOTAM)