,
,
,
Beilstein Arch. 2024, 202424. https://doi.org/10.3762/bxiv.2024.24.v1
Published 17 Apr 2024
Designing photo-harvesting and photoresponsive supramolecular systems in aqueous media, the fabrication of photoswitch as an amphiphilic structure enables non-invasive functional response by photoirradiation. Although most of aqueous supramolecular assemblies across multiple length-scale were driven by high-energy and bio-damaging UV-light, previously we reported donor-acceptor Stenhouse adduct (DASA) amphiphile controlled by while-light. Herein, we present a series of DASA amphiphiles with minor structural modifications on the chain length of alkyl-linker, which connect DASA motif with hydrophilic part. The excellent photoswitchabilities in organic media and photoresponsiveness in aqueous media, driven by visible-light, are revealed with UV-vis absorption spectroscopy. The supramolecular structures are confirmed by electronic microscopies across multiple length-scale, while the supramolecular packing structures at macroscopic length-scale are revealed with X-ray diffraction. Driven by visible-light irradiation, the large geometrical transformations of DASA amphiphiles enable supramolecular transformation at microscopic length-scale, and subsequently disassemble the macroscopic soft scaffolds of DASA amphiphiles. The results indicate the feasibility in developing visible-light controlled macroscopic scaffolds for offering opportunity in fabricating biomedical materials with visible-light controlled microenvironment and future soft robotic systems.
Keywords: Donor-Acceptor Stenhouse Adduct; Supramolecular Transformation; Photoresponsive Molecular Amphiphile; Visible-Light
When a peer-reviewed version of this preprint is available, this information will be updated in the information box above. If no peer-reviewed version is available, please cite this preprint using the following information:
Hung, K.-L.; Cheung, L.-H.; Ren, Y.; Chau, M.-H.; Lam, Y.-Y.; Kajitani, T.; Leung, F. K.-C. Beilstein Arch. 2024, 202424. doi:10.3762/bxiv.2024.24.v1
Citation data can be downloaded as file using the "Download" button or used for copy/paste from the text window below.
Citation data in RIS format can be imported by all major citation management software, including EndNote, ProCite, RefWorks, and
Zotero.
© 2024 Hung et al.; licensee Beilstein-Institut.
This is an open access work licensed under the terms of the Beilstein-Institut Open Access License Agreement (https://www.beilstein-archives.org/xiv/terms), which is identical to the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0). The reuse of material under this license requires that the author(s), source and license are credited. Third-party material in this work could be subject to other licenses (typically indicated in the credit line), and in this case, users are required to obtain permission from the license holder to reuse the material.
