Synthetic Melanin E-Ink

Lingqian Chang, Feng Chen, Xiaokang Zhang, Tairong Kuang, Mi Li, Jiaming Hu, Junfeng Shi, Ly James Lee, Huanyu Cheng, Yiwen Li

Research output: Contribution to journalArticlepeer-review

41 Scopus citations


Extensive efforts have been devoted to the development of surfactant-free electronic ink (E-ink) with excellent display resolution for high-definition resolution display. Herein, we report the use of polydopamine-based synthetic melanin, a class of functional nanoparticles with similar chemical compositions and physical properties to those of naturally occurring melanin, as a new E-ink material. It was found that such E-ink displays could achieve ultrahigh resolution (>10 000 ppi) and low power consumption (operation voltage of only 1 V) in aqueous solutions. Interestingly, simple oxidation of synthetic melanin nanoparticles enables the generation of intrinsic fluorescence, allowing further development of fluorescent E-ink displays with nanoscale resolution. We describe these bioinspired materials in an initial proof-of-concept study and propose that synthetic melanin nanoparticles will be suitable for electronic nanoinks with a potential wide range of applications in molecular patterning and fluorescence bioimaging.

Original languageEnglish (US)
Pages (from-to)16553-16560
Number of pages8
JournalACS Applied Materials and Interfaces
Issue number19
StatePublished - May 17 2017

All Science Journal Classification (ASJC) codes

  • General Materials Science


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