Metastable Azobenzene Nanotoroids as Kinetic Reservoirs for Seeded and Photoinduced Gelation

Clicks: 1
ID: 319083
2026
Free PDF
Article Quality & Performance Metrics
Overall Quality
Not rated
Combines reader engagement with the AI quality analysis. This article has not been analysed, so there is no overall score — reader engagement is measured and shown alongside.
AI Quality Assessment
Not analyzed
Readership in this journal

Ranked #62 of 62 articles by views in bulletin of the chemical society of japan

Most read Least read

Bar heights use a square-root scale.

Mint this article as an NFT
Not yet minted

Create a permanent, verifiable on-chain record of this article on the Scimatic Network. The NFT is held in your Journament account, and you can withdraw it to your own wallet at any time.

5 SUSD one-off · no wallet required
Sign in to mint
Abstract
Abstract Cyclic molecules and supramolecular assemblies play important roles in both covalent and supramolecular polymerization because their distinctive topology eliminates chain ends and thereby suppresses one-dimensional elongation pathways. Here we show that larger, mesoscopic cyclic supramolecular assemblies function as off-pathway kinetic traps that inhibit supramolecular polymerization by virtue of their high kinetic stability. We previously reported that an azobenzene dyad bearing amide hydrogen-bonding sites forms exceptionally stable cyclic assemblies (nanotoroids). In the present work, relocating the amide groups renders the nanotoroids metastable: after an induction period they ultimately convert into supramolecular fibers. At high concentrations the nanotoroids remain remarkably stable and resist transformation; however, addition of fiber seeds triggers fiber growth and gelation. Moreover, UV-induced trans→cis isomerization of the azobenzene units collapses the nanotoroids and promotes fiber growth through the formation of short fibrous species, leading to gel formation. This system therefore constitutes a rare case in which generation of the assembly-inactive cis-isomer induces gelation, offering a new design principle for off-pathway trapping strategies that leverage cyclic mesoscopic architectures.
Reference Key
openalex_W7166590489 Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Natsuki Suda, Sougata Datta, Hiroki Hanayama, Takashi Kajitani, Shiki Yagai
Journal bulletin of the chemical society of japan
Year 2026
DOI
10.1093/bulcsj/uoag090
URL
https://doi.org/10.1093/bulcsj/uoag090
Keywords Keywords not found

Citations

No citations found. To add a citation, contact the admin at info@scimatic.org

Comments

No comments yet. Be the first to comment on this article.