All‐Organic Smart Textile Sensor for Deep‐Learning‐Assisted Multimodal Sensing

Abstract

Smart textile for sensor is identified as a superior platform with greatly improved convenience and comfort for wearable bioelectronics. However, most reported textile-based sensors cannot fully demonstrate the inherent advantages of textiles, such as comfortability, breathability, biocompatibility, and environmental friendliness, mainly due to the intrinsic limitation of non-textile or inorganic components. Here, an all-textile, all-organic, washable, and breathable sensor with discriminable pressure, proximity, and temperature sensing function is first reported. Multiple sensing functions and outstanding washability are demonstrated. The all-textile sensor can also be seamlessly integrated into diverse types of fabrics to realize wide-range sensing of human activities and noncontact stimuli without sacrificing biocompatibility and comfortability. Additionally, by combining with the deep-learning technique, an all-textile sensing system is established to recognize object shape, contactless trajectory, and even environmental temperature. These results open a new avenue for designing low-cost, washable, comfortable, and biocompatible green textile electronics, providing a meaningful guideline in intelligent textiles.

Enabling High-Performance Pressure and Proximity Dual-Mode Sensing with EGaIn/Ag/ZnO Egg-Shell Ternary Composite Particles

“…Differently, for noncontact proximity sensing, the presence of an object above the capacitor sensor ( C 1 ), such as a hand (Figure a), can act as another electrode and form a new capacitor ( C 2 ) with air as the dielectric layer. The presence of C 2 weakens the electric field in the sensor, leading to a decrease in C 1 . As shown in Figure b, finite element analysis was further applied to show the change of the electric field (represented by red lines) around the sensor when an object approaches (Figure b).…”

“…The presence of C 2 weakens the electric field in the sensor, leading to a decrease in C 1 . 30 As shown in Figure 5b, finite element analysis was further applied to show the change of the electric field (represented by red lines) around the sensor when an object approaches (Figure 5b). It can be seen that as the distance between the object and the sensor is reduced from 20 to 10 cm, the electric field of the sensor is weakened.…”

Touchless Artificial Perception beyond Fingertip Probing

“…Utilizations of touchless electronics in human healthcare applications could be attributed to their excellent sensing abilities of humidity, temperature, and airflows (Figure F). − Infrared thermometers are extensively adopted to monitor body temperature to provide real-time information about human health status. Airflow perception could help humans to respond to noncontact stimuli in uncertain environments (for example, dark, noisy, etc.)…”

“…Copyright 2017 American Chemical Society. Reproduced with permission from ref . Copyright 2023 Wiley-VCH.…”

A hierarchical metafabric with dynamically thermochromic property for subambient daytime radiative cooling

“…22,23 Enhanced research and development efforts have resulted in the emergence of fibers or textiles that possess sensing, memory, communication, and other advanced capabilities. 24–27 Materials possessing properties relevant to personal health management, such as moisture absorption and sweat-wicking abilities, thermochromism, and antibacterial functionalities, have garnered significant attention due to their potential in enhancing the practicality of fibers and textiles while improving bodily comfort and elevating daily life quality. 28–32 Recently, Wang et al reported a moisture-wicking passive cooling hierarchical metafabric based on nanofiber membranes that combines selective optical cooling and wick-evaporation cooling to achieve efficient temperature and moisture management.…”