Nanowerk August 12, 2023
Using confocal microscopy researchers in Finland characterized dynamic photoinduced wrinkle erasure enabled by photomechanical changes in supramolecular polymer-azo complexes. Different photoactive molecules were compared to 4-hydroxy-4′-dimethylaminoazobenzene (OH-azo-DMA). The characteristic erasure times of wrinkles were assessed by using an image processing algorithm. The results confirmed that the photoinduced movement on the topmost layer could be successfully transferred to the substrate. Furthermore, the chosen supramolecular strategy allowed decoupling the effect of molecular weight of the polymer and photochemistry of the chromophore, allowing quantitative comparison of wrinkling erasure efficiency of different materials and providing a facile way to optimize the system for specific applications… read more. Open Access TECHNICAL ARTICLEÂ
Graphical Abstract. Credit: ChemPhysChemVolume 24, Issue 13 e202300153Â