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Conducting nanofibers and organogels derived from the self-assembly of tetrathiafulvalene-appended dipeptides

Nalluri, Siva Krishna Mohan and Shivarova, Nadezhda and Kanibolotsky, Alexander L. and Zelzer, Mischa and Gupta, Swati and Frederix, Pim and Skabara, Peter J. and Gleskova, Helena and Ulijn, Rein V. (2014) Conducting nanofibers and organogels derived from the self-assembly of tetrathiafulvalene-appended dipeptides. Langmuir, 30 (41). pp. 12429-12437. ISSN 0743-7463

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Abstract

In this article, we demonstrate the non-aqueous self-assembly of a low-molecular-mass organic gelator based on an electroactive p-type tetrathiafulvalene (TTF)-dipeptide bioconjugate. We show that a TTF moiety appended with diphenylalanine amide derivative (TTF-FF-NH2) self-assembles into one-dimensional nanofibers that further lead to the formation of self-supporting organogels in chloroform and ethyl acetate. Upon doping of the gels with electron acceptors (TCNQ/iodine vapor), stable two-component charge transfer gels are produced in chloroform and ethyl acetate. These gels are characterized by various spectroscopy (UV-vis-NIR, FTIR and CD), microscopy (AFM and TEM), rheology and cyclic voltammetry techniques. Furthermore, conductivity measurements performed on TTF-FF-NH2 xerogel nanofiber networks formed between gold electrodes on a glass surface indicate that these nanofibers show a remarkable enhancement in the conductivity after doping with TCNQ.

Item type: Article
ID code: 49506
Keywords: ow-molecular-mass organic gelator, TTF-FF-NH2, nanofiber networks, tetrathiafulvalene-appended dipeptides, Physical and theoretical chemistry, Chemical technology, Electrical engineering. Electronics Nuclear engineering, Spectroscopy, Materials Science(all), Surfaces and Interfaces, Electrochemistry, Condensed Matter Physics
Subjects: Science > Chemistry > Physical and theoretical chemistry
Technology > Chemical technology
Technology > Electrical engineering. Electronics Nuclear engineering
Department: Faculty of Science > Pure and Applied Chemistry
Faculty of Engineering > Electronic and Electrical Engineering
Depositing user: Pure Administrator
Date deposited: 03 Oct 2014 08:22
Last modified: 18 May 2019 14:48
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URI: https://strathprints.strath.ac.uk/id/eprint/49506
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