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Photoswitchable merocyanine-amphiphiles with programmable self-assembly times

26 June 2025, Version 2
Working Paper
This content is a preprint and has not undergone peer review at the time of posting.

Abstract

Ellipsoids formed from a merocyanine-based amphiphile can be disassembled by irradiation with visible light. The thermal recovery of the self-assembly is significantly slower than that of the dilute amphiphile. The delay between the switching and assembly processes can be tuned between minutes and hours by adding differently charged co-surfactants.

Keywords

Photoswitch
Self-assembly
Amphiphile
Spiropyran
Supramolecular

Supplementary materials

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Supporting Information
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All the experimental procedures, and analytical data supporting this work.
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SI data
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All the data used in this study, Origin files, plots and other data used in all fitting and analysis.
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Version History

Jun 26, 2025 Version 2

Version Notes

Added SAXS data and additional experiments and discussion. Manuscript extensively re-written.

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The content is available under CC BY NC ND 4.0 [opens in a new tab]

DOI

10.26434/chemrxiv-2025-qwl4n-v2
D O I: 10.26434/chemrxiv-2025-qwl4n-v2 [opens in a new tab]

Funding

Australian Research Council
DP220101847
Australian Synchrotron
CAP19108
Australian Nuclear Science and Technology Organisation
18538
Australian Synchrotron
23911

Author’s competing interest statement

The author(s) have declared they have no conflict of interest with regard to this content

Ethics

The author(s) have declared ethics committee/IRB approval is not relevant to this content

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