Biodegradable, Flexible and Transparent Tactile Pressure Sensor Based on Rubber Leaf Skeletons

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1 Citation (Scopus)
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Capacitive sensors have many applications in tactile sensing, human-machine interfaces, on-body sensors, and patient monitoring. Particularly in biomedical applications, it would be beneficial if the sensor is disposable and readily degradable for efficient recycling. In this study, we report a biodegradable capacitive tactile pressure sensor based on sustainable and bio resourced materials. Silver-nanowire-coated rubber tree leaf skeletons are used as transparent and flexible electrodes while a biodegradable clear tape is used as the dielectric layer. The fabricated sensor is sensitive and can respond to low pressures (7.9 mN when pressed with a probe with a surface area of 79 mm2 / 0.1 kPa) ranging to relatively high pressures (37 kPa), with a sensitivity up to ≈ 4.5×10-3 kPa-1. Owing to all bio resourced constituents, the sensor is biodegradable and does not create electronic waste.

Original languageEnglish
Pages (from-to)11241-11247
JournalIEEE Sensors Journal
Issue number12
Early online date2021
Publication statusPublished - 2022
Publication typeA1 Journal article-refereed


  • Ag nanowires
  • Bioinspiration
  • capacitive sensors
  • Capacitive sensors
  • Electrodes
  • Fabrication
  • leaf skeleton
  • Nanowires
  • Rubber
  • Sensors
  • Skeleton

Publication forum classification

  • Publication forum level 2

ASJC Scopus subject areas

  • Instrumentation
  • Electrical and Electronic Engineering


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