DD Prabhu
Self-folding of supramolecular polymers into bioinspired topology.
Prabhu, DD; Aratsu, K; Kitamoto, Y; Ouchi, H; Ohba, T; Hollamby, MJ; Shimizu, N; Takagi, H; Haruki, R; Adachi, S-I; Yagai, S
Authors
K Aratsu
Y Kitamoto
H Ouchi
T Ohba
Martin Hollamby m.hollamby@keele.ac.uk
N Shimizu
H Takagi
R Haruki
S-I Adachi
S Yagai
Abstract
Folding one-dimensional polymer chains into well-defined topologies represents an important organization process for proteins, but replicating this process for supramolecular polymers remains a challenging task. We report supramolecular polymers that can fold into protein-like topologies. Our approach is based on curvature-forming supramolecular rosettes, which affords kinetic control over the extent of helical folding in the resulting supramolecular fibers by changing the cooling rate for polymerization. When using a slow cooling rate, we obtained misfolded fibers containing a minor amount of helical domains that folded on a time scale of days into unique topologies reminiscent of the protein tertiary structures. Thermodynamic analysis of fibers with varying degrees of folding revealed that the folding is accompanied by a large enthalpic gain. The self-folding proceeds via ordering of misfolded domains in the main chain using helical domains as templates, as fully misfolded fibers prepared by a fast cooling rate do not self-fold.
Citation
Prabhu, D., Aratsu, K., Kitamoto, Y., Ouchi, H., Ohba, T., Hollamby, M., Shimizu, N., Takagi, H., Haruki, R., Adachi, S.-I., & Yagai, S. (2018). Self-folding of supramolecular polymers into bioinspired topology. Science Advances, 4(9), Article eaat8466. https://doi.org/10.1126/sciadv.aat8466
Journal Article Type | Article |
---|---|
Acceptance Date | Jul 27, 2018 |
Publication Date | Sep 7, 2018 |
Journal | Science Advances |
Electronic ISSN | 2375-2548 |
Publisher | American Association for the Advancement of Science |
Peer Reviewed | Peer Reviewed |
Volume | 4 |
Issue | 9 |
Article Number | eaat8466 |
DOI | https://doi.org/10.1126/sciadv.aat8466 |
Public URL | https://keele-repository.worktribe.com/output/411789 |
Publisher URL | http://doi.org/10.1126/sciadv.aat8466 |
Files
20180917_eaat8466.full.pdf
(1.3 Mb)
PDF
Publisher Licence URL
https://creativecommons.org/licenses/by-nc/4.0/
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