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Fabrication of Supr...
Fabrication of Supramolecular n/p-Nanowires via Coassembly of Oppositely Charged Peptide-Chromophore Systems in Aqueous Media
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- Khalily, M. A. (author)
- Bilkent Universitesi,Bilkent University
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- Bakan, G. (author)
- Atilim Universitesi,Atilim University,Bilkent Universitesi,Bilkent University
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- Kücüköz, Betül, 1988 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Topal, A. E. (author)
- Bilkent Universitesi,Bilkent University
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- Karatay, A. (author)
- Ankara Universitesi
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- Yaglioglu, H. G. (author)
- Ankara Universitesi
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- Dana, A. (author)
- Bilkent Universitesi,Bilkent University
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- Guler, M. O. (author)
- University of Chicago,Bilkent Universitesi,Bilkent University
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(creator_code:org_t)
- 2017-07-11
- 2017
- English.
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In: ACS Nano. - : American Chemical Society (ACS). - 1936-086X .- 1936-0851. ; 11:7, s. 6881-6892
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Abstract
Subject headings
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- Fabrication of supramolecular electroactive materials at the nanoscale with well-defined size, shape, composition, and organization in aqueous medium is a current challenge. Herein we report construction of supramolecular charge-transfer complex one-dimensional (1D) nanowires consisting of highly ordered mixed-stack pi-electron donor-acceptor (D-A) domains. We synthesized n-type and p-type beta-sheet forming short peptide-chromophore conjugates, which assemble separately into well-ordered nanofibers in aqueous media. These complementary p-type and n-type nanofibers coassemble via hydrogen bonding, charge-transfer complex, and electrostatic interactions to generate highly uniform supramolecular n/p-coassembled 1D nanowires. This molecular design ensures highly ordered arrangement of D-A stacks within n/p-coassembled supramolecular nanowires. The supramolecular n/p-coassembled nanowires were found to be formed by A D-A unit cells having an association constant (K-A) of 5.18 x 10(5) M-1. In addition, electrical measurements revealed that supramolecular n/p-coassembled nanowires are approximately 2400 and 10 times more conductive than individual n-type and p-type nanofibers, respectively. This facile strategy allows fabrication of well-defined supramolecular electroactive nanomaterials in aqueous media, which can find a variety of applications in optoelectronics, photovoltaics, organic chromophore arrays, and bioelectronics.
Subject headings
- NATURVETENSKAP -- Kemi -- Fysikalisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Physical Chemistry (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Nanoteknik -- Nanoteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Nano-technology -- Nano-technology (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Keyword
- coassembly
- self-assembly
- peptide chromophore
- conductivity
- nanowires
- supramolecular
Publication and Content Type
- art (subject category)
- ref (subject category)
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