An integrated and robust plant pulse monitoring system based on biomimetic wearable sensor

作者：Chao Zhang, Chi Zhang, Xinyue Wu, Jianfeng Ping, Yibin Ying · 发表于：npj Flexible Electronics · 年份：2022 · DOI：10.1038/s41528-022-00177-5 · 被引用次数：113 · 研究领域：Analytical Chemistry and Sensors、Advanced Sensor and Energy Harvesting Materials、Advanced Fiber Optic Sensors

Abstract Plant wearable sensors have potential to provide continuous measurements of plant physiological information. However, stable and high-fidelity monitoring of plants with glandular hairs and wax is challenging, due to lacking interface adaptability of conventional plant wearable sensors. Here, inspired by adaptive winding plant tendrils, an integrated plant wearable system (IPWS) based on adaptive winding strain (AWS) sensor for plant pulse monitoring was developed. The IPWS consists of three modules, i.e. an AWS sensor, a flexible printed circuit, and a smart phone APP display interface. As the key element, the AWS sensor can adaptively wrap around the tomato stem. Importantly, with the serpentine-patterned laser-induced graphene, the AWS sensor exhibits excellent resistance to temperature interference with a temperature resistance coefficient of 0.17/°C. The IPWS is demonstrated to be stable and high-fidelity monitoring the plant pulse, which can reflect the growth and water state of tomato plant in real time.