Intelligent perceptual textiles based on ionic-conductive and strong silk fibers

Abstract

Endowing textiles with perceptual function, similar to human skin, is crucial for the development of next-generation smart wearables. To date, the creation of perceptual textiles capable of sensing potential dangers and accurately pinpointing finger touch remains elusive. In this study, we present the design and fabrication of intelligent perceptual textiles capable of electrically responding to external dangers and precisely detecting human touch, based on conductive silk fibroin-based ionic hydrogel (SIH) fibers. These fibers possess excellent fracture strength (55 MPa), extensibility (530%), stable and good conductivity (0.45 S·m–1) due to oriented structures and ionic incorporation. We fabricated SIH fiber-based protective textiles that can respond to fire, water, and sharp objects, protecting robots from potential injuries. Additionally, we designed perceptual textiles that can specifically pinpoint finger touch, serving as convenient human-machine interfaces. Our work sheds new light on the design of next-generation smart wearables and the reshaping of human-machine interfaces.

Recent Research Advances in Textile-Based Flexible Power Supplies and Displays for Smart Wearable Applications

“…Technologies such as sensor technology − and flexible electronics have received widespread attention with the development of advanced technologies such as the Internet of Things, 5G and smart wearable . The integration of flexible electronics (e.g., sensors, displays, and flexible power supplies) with textiles makes the textile industry smarter. − Earlier, most exploration practices on e-textiles were combined with textiles by reducing the thickness, volume or mass of rigid electronic devices. But as e-textiles are different from other rigid electronic devices, they have higher requirements for flexibility, comfort, moisture and air permeability, portability, flexibility and sustainability.…”

Silk-based intelligent fibers and textiles: structures, properties, and applications

“…In today's high-tech and globally connected society, versatile and highly adjustable fiber materials play a central role in many fields, including the textile, 1–3 construction, 4,5 medical, 6–8 automotive 9,10 and aerospace industries. 11,12 Silk Fibroin (SF), a typical representative of natural fibers, has received extensive attention in scientific research due to its unique chemical composition and structural properties.…”