2024-05-30 ペンシルベニア州立大学(PennState)
<関連情報>
- https://www.psu.edu/news/research/story/rewritable-recyclable-smart-skin-monitors-biological-signals-demand/
- https://onlinelibrary.wiley.com/doi/10.1002/adma.202400236
オンデマンドでプログラム可能なリサイクル可能デバイスプラットフォームのためのPI/PDMS複合材料の直接レーザー加工と機能化 Direct Laser Processing and Functionalizing PI/PDMS Composites for an On-Demand, Programmable, Recyclable Device Platform
Jia Zhu, Yang Xiao, Xianzhe Zhang, Yao Tong, Jiaying Li, Ke Meng, Yingying Zhang, Jiuqiang Li, Chenghao Xing, Senhao Zhang, Benkun Bao, Hongbo Yang, Min Gao, Taisong Pan, Shangbin Liu …
Advanced Materials Published: 02 April 2024
DOI:https://doi.org/10.1002/adma.202400236
Abstract
Skin-interfaced high-sensitive biosensing systems to detect electrophysiological and biochemical signals have shown great potential in personal health monitoring and disease management. However, the integration of 3D porous nanostructures for improved sensitivity and various functional composites for signal transduction/processing/transmission often relies on different materials and complex fabrication processes, leading to weak interfaces prone to failure upon fatigue or mechanical deformations. The integrated system also needs additional adhesive to strongly conform to the human skin, which can also cause irritation, alignment issues, and motion artifacts. This work introduces a skin-attachable, reprogrammable, multifunctional, adhesive device patch fabricated by simple and low-cost laser scribing of an adhesive composite with polyimide powders and amine-based ethoxylated polyethylenimine dispersed in the silicone elastomer. The obtained laser-induced graphene in the adhesive composite can be further selectively functionalized with conductive nanomaterials or enzymes for enhanced electrical conductivity or selective sensing of various sweat biomarkers. The possible combination of the sensors for real-time biofluid analysis and electrophysiological signal monitoring with RF energy harvesting and communication promises a standalone stretchable adhesive device platform based on the same material system and fabrication process.
