Photoresponsive Coumarin-Based Supramolecular Hydrogel for Controllable Dye Release

Wei Ji, Minggao Qin, Chuanliang Feng*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Recently, photoresponsive hydrogels have attracted increasing interest due to their ability to provide precise spatial and temporal control of drug release. Herein, a new kind of coumarin-based photoresponsive supramolecular hydrogelator without conventional gelation motif is designed and synthesized through a facile one-pot method. The gelation process, photoresponsiveness, self-assembly morphology, self-assembly mechanism, and release kinetics are fully investigated by various characterization methods (e.g., scanning electron microscopy, single crystal X-ray diffraction, high pressure liquid chromatography, UV–vis spectroscopy). Furthermore, encapsulated methyl violet dye molecules can be precisely released from the hydrogel by manipulating photoirradiation time. The study reveals that the coumarin-based photoresponsive hydrogel holds great potential as soft materials for controllable drug release.

Original languageEnglish
Article number1700398
JournalMacromolecular Chemistry and Physics
Issue number2
StatePublished - Jan 2018
Externally publishedYes


  • coumarin
  • drug release
  • photoresponsive
  • self-assembly
  • supramolecular hydrogels


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