Interest in catechol-bearing networks has expanded rapidly in recent years. Catechols have been used in as functional moieties in hydrogel-based networks, adhesives, coatings, and redox-active materials. Here we present recent advances in catechol-bearing networks for applications ranging in fabricating ultracompliant electronic devices and biologically-derived electrochemical storage devices. First, the use of catechol-bearing hydrogels in transfer printing of electronic structures to ultracompliant hydrogel substrates will be presented. Photocrosslinkable hydrogels composed of poly(2-hydroxyethylmethacrylate-co-dopamine methacylate)-co-poly(ethyleneglycol)diacrylate (P(HEMA-co-DMA)-PEGDA) are prepared and characterized. The adhesive properties of P(HEMA-co-DMA)-PEGDA were measured using force-distance measurements across a range of substrate materials. These functionalized hydrogels are then used as substrates that permit transfer printing of microelectronic structures to swollen hydrated networks. Next, the use of catechol-bearing melanin networks as electrochemical storage devices will be described. Redox-active biologically-derived pigments will be used as electrode materials in both primary (secondary) batteries that utilize monovalent (multivalent) cations and aqueous electrolytes. Implications in bioelectronics and edible electronic medical devices will be discussed.

Catechol-bearing networks: From underwater adhesives to electrochemical storage devices

251st National Meeting (2016)

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