학술논문

Silk Nanofibers-Based Soft and Degradable Capacitive Pressure Sensor Arrays
Document Type
Periodical
Source
IEEE Sensors Letters IEEE Sens. Lett. Sensors Letters, IEEE. 7(5):1-4 May, 2023
Subject
Components, Circuits, Devices and Systems
Robotics and Control Systems
Communication, Networking and Broadcast Technologies
Signal Processing and Analysis
Sensors
Sensor arrays
Pressure sensors
Capacitive sensors
Hysteresis
Sensitivity
Capacitance
Sensor materials
pressure sensor
biodegradability
electrospinning
hysteresis
pressure mapping
recovery time
response time
sensitivity
Language
ISSN
2475-1472
Abstract
Highly sensitive pressure sensors with features such as biocompatibility, biodegradability, and flexibility are needed in applications such as robotics, prosthesis, medical implants, and wearable electronics. However, due to material limitations or technological bottlenecks, it is often challenging to fabricate pressure sensors with these attributes at the same time. Herein, we present biodegradable silk/PEO/yeast nanofibers-based soft capacitive pressure sensor array (2×2). The electrospun nanofibers used here have about 150% enhanced crystallinity, as confirmed by X-ray diffraction and Fourier transform-infrared spectroscopy. The performance metrics of the sensor array such as sensitivity (∼0.18 kPa −1 ), hysteresis (