Jump to main content
Jump to site search

Issue 19, 2018
Previous Article Next Article

An addressable packing parameter approach for reversibly tuning the assembly of oligo(aniline)-based supra-amphiphiles

Author affiliations

Abstract

We present a newly developed approach to non-covalently address the packing parameter of an electroactive amphiphile. The pH-responsive reversible switching of a tetra(aniline)-based cationic amphiphile, TANI-pentyl trimethylammonium bromide (TANI-PTAB), between self-assembled vesicles and nanowires by acid/base chemistry in aqueous solution is used to exemplify this approach. Trifluoroacetic acid (TFA) was selected as a prototypical acid to form emeraldine salt (ES) state (TANI(TFA)2-PTAB) vesicles for this new class of small-molecule supramolecular amphiphiles. UV-vis-NIR spectroscopy, transmission electron microscopy (TEM), tapping-mode atomic force microscopy (AFM), and fluorescence spectroscopy were used to investigate the reversible structural transformation from vesicles to nanowires. We show that utilising different protonic acid-dopants for TANI-PTAB can regulate the packing parameter, and thus the final self-assembled structures, in a predictable fashion. We envisage potential application of this concept as smart and switchable delivery systems.

Graphical abstract: An addressable packing parameter approach for reversibly tuning the assembly of oligo(aniline)-based supra-amphiphiles

Back to tab navigation

Supplementary files

Publication details

The article was received on 07 Jan 2018, accepted on 01 Apr 2018 and first published on 02 Apr 2018


Article type: Edge Article
DOI: 10.1039/C8SC00068A
Citation: Chem. Sci., 2018,9, 4392-4401
  • Open access: Creative Commons BY license
  •   Request permissions

    An addressable packing parameter approach for reversibly tuning the assembly of oligo(aniline)-based supra-amphiphiles

    W. Lyu, M. Alotaibi, O. A. Bell, K. Watanabe, R. Harniman, Benjamin M. Mills, A. M. Seddon, S. E. Rogers, S. M. King, W. Yan and C. F. J. Faul, Chem. Sci., 2018, 9, 4392
    DOI: 10.1039/C8SC00068A

    This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. Material from this article can be used in other publications provided that the correct acknowledgement is given with the reproduced material.

    Reproduced material should be attributed as follows:

    • For reproduction of material from NJC:
      [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the Centre National de la Recherche Scientifique (CNRS) and the RSC.
    • For reproduction of material from PCCP:
      [Original citation] - Published by the PCCP Owner Societies.
    • For reproduction of material from PPS:
      [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the European Society for Photobiology, the European Photochemistry Association, and RSC.
    • For reproduction of material from all other RSC journals:
      [Original citation] - Published by The Royal Society of Chemistry.

    Information about reproducing material from RSC articles with different licences is available on our Permission Requests page.

Search articles by author

Spotlight

Advertisements