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

Krishna Mohan Nalluri, Siva; Shivarova, Nadezhda; Kanibolotsky, Alexander L.; Zelzer, Mischa; Gupta, Swati; Frederix, Pim W.J.M.; Skabara, Peter J.; Gleskova, Helena; Ulijn, Rein V.

Abstract

We demonstrate the nonaqueous 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.

Citation

Krishna Mohan Nalluri, S., Shivarova, N., Kanibolotsky, A. L., Zelzer, M., Gupta, S., Frederix, P. W., Skabara, P. J., Gleskova, H., & Ulijn, R. V. (2014). Conducting nanofibers and organogels derived from the self-assembly of tetrathiafulvalene-appended dipeptides. Langmuir, 30(41), 12429-12437. https://doi.org/10.1021/la503459y

• Journal Article Type: Article
• Acceptance Date: Sep 26, 2014
• Online Publication Date: Sep 26, 2014
• Publication Date: Oct 21, 2014
• Deposit Date: Sep 15, 2017
• Publicly Available Date: Apr 8, 2019
• Print ISSN: 0743-7463
• Electronic ISSN: 1520-5827
• Publisher: American Chemical Society
• Peer Reviewed: Peer Reviewed
• Volume: 30
• Issue: 41
• Pages: 12429-12437
• DOI: https://doi.org/10.1021/la503459y
• Public URL: https://nottingham-repository.worktribe.com/output/1108009
• Publisher URL: https://pubs.acs.org/doi/10.1021/la503459y
• PMID: 00034363