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. 2019 Jun 20;10:2705. doi: 10.1038/s41467-019-10640-z

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© The Author(s) 2019

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 1 — Preparation and characterization of the supramolecular SCNGs at high concentrations. a, b The preparation scheme of the c unfoldable dynamic ADA@CD-SCNGs, d unfolding process of the ADA@CD-SCNGs, e non-unfoldable SCNGs and f non-foldable linear polymer. g GPC traces for the ADA@CD crosslinked unfoldable ADA@CD-SCNGs (green line) and the corresponding unfolded species (orange line) after treating the SCNGs with free competitive ADA. The unfolding of the ADA@CD-SCNGs led to a slight increase in the apparent molecular weight. h DLS analysis of the folded (green line) and unfolded ADA@CD-SCNGs (orange line). i Atomic force microscopy (AFM) height analysis of two-folded ADA@CD-SCNG particles A and B shown in panel j. j AFM height image of the ADA@CD-SCNGs and l the unfolded species. k 3D modelling image of the ADA@CD-SCNGs and m the unfolded species on silica. The length scale bars of j and l are 300.0 nm, of k and m are 100.0 nm. The height colour scale of j and k is from 0 to 10 nm by height, the colour scale of l and m is from 0 to 8.1 nm by height