Dynamic metal-ligand coordination for multicolour and water-jet rewritable paper

Yun Ma, Pengfei She, Kenneth Yin Zhang, Huiran Yang, Yanyan Qin, Zihan Xu, Shujuan Liu, Qiang Zhao () and Wei Huang ()
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Yun Ma: Nanjing University of Posts and Telecommunications (NUPT)
Pengfei She: Nanjing University of Posts and Telecommunications (NUPT)
Kenneth Yin Zhang: Nanjing University of Posts and Telecommunications (NUPT)
Huiran Yang: Nanjing Tech University
Yanyan Qin: Nanjing University of Posts and Telecommunications (NUPT)
Zihan Xu: Nanjing University of Posts and Telecommunications (NUPT)
Shujuan Liu: Nanjing University of Posts and Telecommunications (NUPT)
Qiang Zhao: Nanjing University of Posts and Telecommunications (NUPT)
Wei Huang: Nanjing University of Posts and Telecommunications (NUPT)

Nature Communications, 2018, vol. 9, issue 1, 1-8

Abstract: Abstract Rewritable paper has recently become prevalent in both academic research and marketplace due to the potential environmental advantages, including forest conservation, pollution reduction, energy saving and resource sustainability. However, its real-life applications are limited by a lack of effective strategy to realize multicolour and water-jet printing on rewritable paper with long legible image-lasting times. Herein, we report an effective strategy to construct rewritable paper based on colour or luminescence switching induced by dynamic metal–ligand coordination. This type of rewritable paper can be conveniently utilized for multicolour water-jet printing by using aqueous solutions containing different metal salts as ink. In addition, the printed images on the water-jet rewritable paper can be retained for a long time (> 6 months), which shows great progress compared to previous work. We believe that this type of rewritable paper could be considered as a prototype for multicolour water-jet printing to meet the practical needs.

Date: 2018
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DOI: 10.1038/s41467-017-02452-w

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