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Updated: Feb 15, 2026

Light-driven Enzymatic Decarboxylation
Published on: May 22, 2016
Rapid Light-Driven Color Transition of Novel Photoresponsive Polydiacetylene Molecules
Jiseok Lee1, Sungbaek Seo2, Jinsang Kim
1School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST) , Ulsan Metropolitan City, 689-798, Republic of Korea.
Abstract:
We developed new photoresponsive polydiacetylene (PR-PDA) molecules by incorporating a photocleavable moiety, 6-nitropiperonyl alcohol (NP) or 4,5-dimethoxy-2-nitrobenzyl alcohol (DMN), into a self-assembling diacetylene molecule. Inducing steric disordering of the assembled PDA molecules by the cleavage of the photoresponsive moiety under 365 nm UV irradiation results in color transition from blue to red and development of red fluorescence, allowing convenient photo patterning. Further writing and erasing of fluorescence patterns are demonstrated toward novel secure information communication and anticounterfeiting applications.
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