Kang, Tae-Hyung Chang, Hochan Choi, Dongwon Kim, Soonwoo Moon, Jihee Lim, Jung Ah Lee, Ki-Young Yi, Hyunjung 2024-01-19T20:01:24Z 2024-01-19T20:01:24Z 2021-09-02 2019-06 1530-6984 https://pubs.kist.re.kr/handle/201004/119927 Transfer-printing enables the assembly of functional nanomaterials on unconventional substrates with a desired layout in a controllable manner. However, transfer-printing to substrates with complex surfaces remains a challenge. Herein, we show that hydrogels serve as effective template material platforms for the assembly and transfer-printing of conductive nanonetwork patterns for flexible sensors on various topographic surfaces in a very simple yet versatile manner. The non-adherence, nanoporous structure, and molding capability of the hydrophilic hydrogel enable the assembly of conductive nanonetwork patterns on the hydrogel surface and transfer of the nanonetworks onto various flexible and topographic substrates. Flexible strain sensors and pressure sensors that monitor finger motions and arterial pulses are successfully demonstrated using the hydrogel-templated approach. The rich chemistry of polymeric networks, facile molding capability, and biocompatibility of hydrogels could be further combined with additive technology for hydrogels and electronic materials for emerging four-dimensional functional materials and soft bioelectronics. English AMER CHEMICAL SOC RESISTIVE PRESSURE SENSORS WALLED CARBON NANOTUBES ELECTRONICS NANOMESH ADHESION FILMS SKIN Hydrogel-Templated Transfer-Printing of Conductive Nanonetworks for Wearable Sensors on Topographic Flexible Substrates Article 10.1021/acs.nanolett.9b00764 1 NANO LETTERS, v.19, no.6, pp.3684 - 3691 NANO LETTERS 19 6 3684 3691 scie scopus 000471834900038 2-s2.0-85066890550 Chemistry, Multidisciplinary Chemistry, Physical Nanoscience & Nanotechnology Materials Science, Multidisciplinary Physics, Applied Physics, Condensed Matter Chemistry Science & Technology - Other Topics Materials Science Physics Article RESISTIVE PRESSURE SENSORS WALLED CARBON NANOTUBES ELECTRONICS NANOMESH ADHESION FILMS SKIN Transfer-printing conductive nanonetworks hydrogels flexible devices inkjet printing wearable sensors