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Injection-on-Skin Granular Adhesive for Interactive Human–Machine Interface

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Title
Injection-on-Skin Granular Adhesive for Interactive Human–Machine Interface
Author(s)
Sumin Kim; Jaepyo Jang; Kyumin Kang; Subin Jin; Heewon Choi; Donghee Son; Mikyung Shin
Publication Date
2023-10
Journal
Advanced Materials, v.35, no.48
Publisher
WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Abstract
Realization of interactive human–machine interfaces (iHMI) is improved with development of soft tissue-like strain sensors beyond hard robotic exosuits, potentially allowing cognitive behavior therapy and physical rehabilitation for patients with brain disorders. Here, this study reports on a strain-sensitive granular adhesive inspired by the core–shell architectures of natural basil seeds for iHMI as well as human–metaverse interfacing. The granular adhesive sensor consists of easily fragmented hydropellets as a core and tissue-adhesive catecholamine layers as a shell, satisfying great on-skin injectability, ionic-electrical conductivity, and sensitive resistance changes through reversible yet robust cohesion among the hydropellets. Particularly, it is found that the ionic-electrical self-doping of the catecholamine shell on hydrosurfaces leads to a compact ion density of the materials. Based on these physical and electrical properties of the sensor, it is demonstrated that successful iHMI integration with a robot arm in both real and virtual environments enables robotic control by finger gesture and haptic feedback. This study expresses benefits of using granular hydrogel-based strain sensors for implementing on-skin writable bioelectronics and their bridging into the metaverse world. © 2023 Wiley-VCH GmbH.
URI
https://pr.ibs.re.kr/handle/8788114/14305
DOI
10.1002/adma.202307070
ISSN
0935-9648
Appears in Collections:
Center for Neuroscience Imaging Research (뇌과학 이미징 연구단) > 1. Journal Papers (저널논문)
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