Flexible wearable biometric smart gloves based on friction nanogenerators.

Smart gloves are gloves with sensing devices that perceive the movements and touch of the hand through artificial intelligence technology and enable interaction with other devices. By wearing the device, it can autonomously recognize the user's movement intention and assist user in completing actions such as clenching fists and lifting objects. With the rapid development of internet technology, flexible wearable electronic devices have a wide range of applications in health supervision, motion detection, and other fields. To improve the power source performance of wearable electronic devices, this study proposed a flexible wearable biometric smart glove based on a friction nanogenerator. The study innovatively prepared a flexible wearable biometric smart device based on two different structures including traditional fabric and porous fiber and achieved multifunctional applications such as harvesting and signal sensing of external energy through friction nanogenerators. The results showed that there was a maximum average power at an external load resistance of 1 when the power density was about 3.98 mW/m². The devices short-circuit current was continuously stabilized at about 40 nA when the pressure magnitude was 10 N in the cycling experiment. When the frequency was varied in the interval from 1 to 4 Hz, the open circuit voltage magnitude was stable at around 57.8 V. The current in a short circuit had the highest value of about 0.4 μA when the frequency was 4 Hz. The classification accuracy rate of the smart glove for biometric recognition was as high as 98.3%. The results indicated that the smart glove designed in the study had good, stabilized performance and could operate for a long time, while having a high classification accuracy rate for biometric identification. The results provided new and improved ideas for the development and application of friction nanogenerators, and contributed to the creation of bendable wearable electronics. [ABSTRACT FROM AUTHOR]