Hard Magnetic Graphene Nanocomposite for Multimodal, Reconfigurable Soft Electronics

ADVANCED MATERIALS(2024)

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摘要
Soft electronics provide effective means for continuous monitoring of a diverse set of biophysical and biochemical signals from the human body. However, the sensitivities, functions, spatial distributions, and many other features of such sensors remain fixed after deployment and cannot be adjusted on demand. Here, laser-induced porous graphene is exploited as the sensing material, and dope it with permanent magnetic particles to create hard magnetic graphene nanocomposite (HMGN) that can self-assemble onto a flexible carrying substrate through magnetic force, in a reversible and reconfigurable manner. A set of soft electronics in HMGN exhibits enhanced performances in the measurements of electrophysiological signals, temperature, and concentrations of metabolites. All these flexible HMGN sensors can adhere to a carrying substrate at any position and in any spatial arrangement, to allow for wearable sensing with customizable sensitivity, modality, and spatial coverage. The HMGN represents a promising material for constructing soft electronics that can be reconfigured for various applications. The HMGN combines the advantages of porous conductive materials and hard magnetic materials to enable multimodal, reconfigurable soft electronics with magnetism-enhanced sensing performance and magnetism-assisted electrical interconnection, allowing for wearable sensing with customizable sensitivity, modality, and spatial coverage.image
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关键词
hard magnetic graphene nanocomposite,magnetism-assisted electrical interconnection,magnetism-enhanced sensing performance,reconfigurable soft electronics
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