Light‐Driven Spiral Deformation of Supramolecular Helical Microfibers by Localized Photoisomerization
Source abstract
Abstract
Abstract Stimuli‐responsive mechanical deformations widely occur in biological systems but the design of biomimetic shape‐changing materials, especially those based on noncovalent interactions, remains highly challenging. Here, hydrogen‐bonded supramolecular microfibers are reported, which can perform light‐driven spiral deformation by switching an intrinsic azobenzene unit without monomer dissociation. The key design feature rests on rationally spaced multiple hydrogen bonds, which inhibits the disassembly pathway upon irradiation, allowing partial photomechanical actuation of the azobenzene cores in the confined environment of the assemblies. The light‐controlled deformation process of the supramolecular microfibers can be switched in a fully reversible manner. This combination of confinement‐inhibited disassembly and photoswitching to induce assembly deformation and actuation along length scales supports a distinctive strategy to design supramolecular materials with photomechanical motion.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Supramolecular Self-Assembly in Materials · Supramolecular Chemistry and Complexes · Photochromic and Fluorescence Chemistry
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering Feringa Nobel Prize Scientist Joint Research Center Frontiers Science Center for Materiobiology and Dynamic Chemistry Institute of Fine Chemicals School of Chemistry and Molecular Engineering East China University of Science and Technology Shanghai 200237 China
Stratingh Institute for Chemistry and Zernike Institute for Advanced Materials Faculty of Science and Engineering University of Groningen Nijenborgh 4 Groningen AG 9747 Netherlands
Funding
National Natural Science Foundation of China · Fundamental Research Funds for the Central Universities · Project 211 · Program of Shanghai Academic Research Leader · Science and Technology Commission of Shanghai Municipality · China Scholarship Council
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