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Hydrogel-Based Iontronics on a Polydimethylsiloxane Microchip by Seok Hee Han; Sung Il Kim; Hae-Ryung Lee; Seung-Min Lim; Song Yi Yeon; Min-Ah Oh; Sunmi Lee; Jeong-Yun Sun; Young-Chang Joo; Taek Dong Chung is a Engineering article available to read on EtoBox.

What is Hydrogel-Based Iontronics on a Polydimethylsiloxane Microchip about?

In response to the extensive utilization of ionic circuits, including in iontronics and wearable devices, a new method for fabricating a hydrogel-based ionic circuit on a polydimethylsiloxane (PDMS) microchip is reported. Prolonged UV/ozone oxidation combined with proper surface functionalizations and a novel microchip bonding method using thiol-epoxy click reaction enable the robust attachment of the photopolymerized hydrogel to the microchannel surface for eventual operation in electrolytes as an ionic circuit. The stretchable ionic diode constructed on the PDMS microchip shows a superior rectification ratio even under tensile stress and long-term storage stability. Furthermore, the combination of the ionic circuit and unique material properties of PDMS allows us to maximize the versatility and diversify the functionalities of the iontronic device, as demonstrated in a pressure-driven ionic switch and chipintegrated ionic regulator. Its iontronic signal transmission mimicking the excitatory and inhibitory synapses also evinces the potential of the hydrogel-based iontronics on the PDMS microchip as developed toward an aqueous neuromimetic information processor while opening up new

Who reads Hydrogel-Based Iontronics on a Polydimethylsiloxane Microchip?

Author

Seok Hee Han; Sung Il Kim; Hae-Ryung Lee; Seung-Min Lim; Song Yi Yeon; Min-Ah Oh; Sunmi Lee; Jeong-Yun Sun; Young-Chang Joo; Taek Dong Chung

Publisher

American Chemical Society (ACS)

Published

2021

Language

EN

Field

Engineering (Physical Sciences)