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A wearable fabric strain sensor assemblied by graphene with dual sensing performance approach to practice application assisted by wireless Bluetooth

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Abstract

Sodium alginate (SA), as the eco-friendly and human-safe biomass material not only can achieve effective dispersion of graphene nanoplatelets (GnPs), but also improve the interaction between GnPs and cellulose macromolecules. Based on this, a flexible and wearable GnPs/cellulose strain sensor with a special 2 × 2 double rib knitted fabric structure (KFGS) was prepared by a simple dip-coating method that could be used on a large scale. The KFGS exhibited dual sensing performance with high sensitivity (25.32 kPa−1 at 3 kPa pressure, gauge factor 32.62 at 25% tensile strain), stretchability (ε > 25%) and dynamic stability (signal drift < 6% after 300 cycles). Its potential application prospects were also predicted by the monitoring of human movement and physical parameters through a wireless Bluetooth connection.

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Correspondence to Yixin Liu or Minghua Li.

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Sun, L., Wang, F., Jiang, J. et al. A wearable fabric strain sensor assemblied by graphene with dual sensing performance approach to practice application assisted by wireless Bluetooth. Cellulose 27, 8923–8935 (2020). https://doi.org/10.1007/s10570-020-03401-5

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  • DOI: https://doi.org/10.1007/s10570-020-03401-5

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