Editorial for Special Issue on Electrochemical Sensors for Non‐Invasive Health Monitoring

Electrochemical sensors have emerged as a pivotal technology in the realm of noninvasive health monitoring. The human body is a complex system, where dynamic tracking of biochemical processes can provide valuable insights and feedback for improving health and understanding underlying biological functions. Electrochemical and electroanalytical techniques stand out due to their ability to offer continuous real-time monitoring, high sensitivity in both in-vivo and in-vitro environments, and seamless integration with modern miniaturized electronics suitable for portable, wearable, or implantable devices. Despite these advances, the quest for expanding the use of electrochemical sensors to improve human health necessitates a focus on noninvasive monitoring methods. To achieve this, several factors require attention and enhancement, including novel transducer designs, surface modification methods, electrode reaction kinetics in biological matrices, biocompatibility, biofouling prevention, system integration, data processing techniques, multimodal sensing, and the correlation between sensing data and diseases. This special issue aims to present a curated collection of the latest advancements in electrochemical sensors for non-invasive health monitoring. Our goal is to provide insights into current research, foster new synergies, and outline future directions for developing next-generation electrochemical systems that can significantly contribute to enhancing life and health. The issue encompasses a diverse range of topics, reflecting the multifaceted nature of this rapidly evolving field: This special issue features contributions ranging from fundamental research articles to insightful reviews and brief communications, each providing unique perspectives on the state-of-the-art in electrochemical sensors for noninvasive health monitoring. These works collectively highlight the importance of continued innovation and interdisciplinary collaboration in this field. I extend our sincere gratitude to all authors for their exceptional contributions and to the reviewers for their critical and constructive feedback. Their efforts have ensured the high quality of this issue. I hope that the articles presented here will inspire further research and technological advancements, ultimately leading to more effective health monitoring solutions and an improved quality of life. I also express my gratitude to the five guest editors listed below for their unwavering commitment, profound expertise, and indispensable contributions, which have been instrumental in molding this special issue into a comprehensive and enlightening compendium for both researchers and practitioners. M.Z. acknowledges the support from the National Natural Science Foundation of China (grant no. 22274018), the ‘111’ Project (China, grant no. B18012), the Jilin Provincial Department of Education (China), the Key Laboratory of Nanobiosensing and Nanobioanalysis at Universities of Jilin Province (China), and the Analysis and Testing Center of Northeast Normal University (China).