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Issue 25, 2017
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Conducting microhelices from self-assembly of protein fibrils

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Abstract

Herein we utilize insulin to prepare amyloid based chiral helices with either right or left handed helicity. We demonstrate that the helices can be utilized as structural templates for the conducting polymer alkoxysulfonate poly(ethylenedioxythiophene) (PEDOT-S). The chirality of the helical assembly is transferred to PEDOT-S as demonstrated by polarized optical microscopy (POM) and Circular Dichroism (CD). Analysis of the helices by conductive atomic force microscopy (c-AFM) shows significant conductivity. In addition, the morphology of the template structure is stabilized by PEDOT-S. These conductive helical structures represent promising candidates in our quest for THz resonators.

Graphical abstract: Conducting microhelices from self-assembly of protein fibrils

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Publication details

The article was received on 11 Jan 2017, accepted on 25 May 2017 and first published on 30 May 2017


Article type: Communication
DOI: 10.1039/C7SM00068E
Citation: Soft Matter, 2017,13, 4412-4417
  • Open access: Creative Commons BY license
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    Conducting microhelices from self-assembly of protein fibrils

    F. G. Bäcklund, A. Elfwing, C. Musumeci, F. Ajjan, V. Babenko, W. Dzwolak, N. Solin and O. Inganäs, Soft Matter, 2017, 13, 4412
    DOI: 10.1039/C7SM00068E

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