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

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

doi:10.1021/la503459y

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

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

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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.

Original language	English
Pages (from-to)	12429-12437
Number of pages	9
Journal	Langmuir
Volume	30
Issue number	41
Early online date	26 Sep 2014
DOIs	https://doi.org/10.1021/la503459y
Publication status	Published - 30 Sep 2014

Keywords

ow-molecular-mass organic gelator
TTF-FF-NH2
nanofiber networks
tetrathiafulvalene-appended dipeptides

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10.1021/la503459y

Nalluri-etal-Langmuir2014-conducting-nanofibers-and-organogelsFinal published version, 5.02 MBLicence: CC BY 4.0

Cite this

@article{4a9980fdeadf47b49fdf308baf2c1ccb,

title = "Conducting nanofibers and organogels derived from the self-assembly of tetrathiafulvalene-appended dipeptides",

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. ",

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author = "Nalluri, {Siva Krishna Mohan} and Nadezhda Shivarova and Kanibolotsky, {Alexander L.} and Mischa Zelzer and Swati Gupta and Pim Frederix and Skabara, {Peter J.} and Helena Gleskova and Ulijn, {Rein V.}",

year = "2014",

month = sep,

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doi = "10.1021/la503459y",

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journal = "Langmuir",

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AU - Nalluri, Siva Krishna Mohan

AU - Shivarova, Nadezhda

AU - Kanibolotsky, Alexander L.

AU - Zelzer, Mischa

AU - Gupta, Swati

AU - Frederix, Pim

AU - Skabara, Peter J.

AU - Gleskova, Helena

AU - Ulijn, Rein V.

PY - 2014/9/30

Y1 - 2014/9/30

N2 - 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.

AB - 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.

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

Abstract

Keywords

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EPSRC Vacation Bursary Programme 2013 (Student: Nadezhda Shivarova; Project title: Study of electrical conduction in novel biogels for biocompatible field-effect transistors)

BTG- Bio-inspired systems and electronic devices at interface with biology

SORSAS/University PhD Studentship (Student: Swati Gupta; Project title: Vacuum growth of n-octylphosphonic acid monolayer for low-voltage organic thin-film transistors)

Cite this

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

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Projects

EPSRC Vacation Bursary Programme 2013 (Student: Nadezhda Shivarova; Project title: Study of electrical conduction in novel biogels for biocompatible field-effect transistors)

BTG- Bio-inspired systems and electronic devices at interface with biology

SORSAS/University PhD Studentship (Student: Swati Gupta; Project title: Vacuum growth of n-octylphosphonic acid monolayer for low-voltage organic thin-film transistors)

Cite this