Stretchable and compressible strain sensors for gait monitoring constructed using carbon nanotube/graphene composite

Abstract

Stretchable and compressible strain sensors play an essential role in various fields with uses ranging from automotive components to medical devices. This study reports on the fabrication and characteristics of stretchable strain and pressure sensors constructed using a carbon nanotube and graphene composite. The sensors were used for gait analysis, an important step in the diagnosis and management of movement disorders. The stretchable and compressible strain sensors were used to measure peak knee sagittal angles and forces under the feet when walking. Gait analysis is usually performed within a laboratory. However, in this research we propose a shift to gait assessments conducted via long-term daily monitoring using wearable devices.

Simultaneously Stretchable and Compressible Flexible Strain Sensors Based on Carbon Nanotube Composites for Motion Monitoring and Human–Computer Interactions

“…(d) Schematic diagram of the initial SEBS/CNTs@CNT and it being compressed by −50%. (e) Sensing strain comparison graph of the SEBS/CNTs@CNTs and various reported simultaneously stretchable and compressible sensors using one sample. ,,,− …”

Silicone Composites with CNT/Graphene Hybrid Fillers: A Review

“…Kumpika et al [ 42 ] also applied the modified strategy to prepare silicone composites with assembled h CNT/G fillers. Their two-step fabrication route involved: (1) production of CNT/G hybrid thin films through ethanol solution blending, sonication, and stirring; (2) infiltration of dried CNT/G thin films with silicone.…”

“…Overall, due to their unique properties, silicone composites with assembled CNT/G hybrid fillers are considered as promising materials to produce strain sensors for health monitoring [ 27 , 37 , 38 , 39 , 42 , 43 , 44 ], flexible electric heating elements [ 40 ], selective membranes [ 41 ], electromagnetic interference (EMI) shielding coatings [ 34 , 35 ], etc.…”

3D printed elastomer ternary composites

“…The emergence of flexible electronics in recent years has generated interest in composites of polymers and inorganic nano-scale materials or fillers. In this context, there has been great interest in composites of nano-materials and polydimethylsiloxane (PDMS), a flexible, transparent, chemically stable silicone elastomer useful for flexible electronics [1]. More recently, ternary composites of PDMS and two distinct nano-fillers are being investigated to create new materials/applications that exploit the characteristics of the individual components.…”