Bibliometric review on flexible pressure sensor design strategies

Flexible pressure sensors have developed rapidly in recent years, with wide applications in wearable devices, healthcare, human-machine interaction, and other fields, showing great potential. Multiple cluster analyses of the relevant literature were performed using bibliometric methods to provide a comprehensive understanding of the research progress in this area. Additionally, the annual publication trends were analyzed, showcasing breakthrough technological developments in flexible pressure sensors. This review provides a comprehensive overview of the evolution of flexible pressure sensors, with a focus on the latest advancements in materials, device design, and system integration. Special attention is given to the recent advancements in conductive gels and liquid metal materials, which have seen rapid progress in recent years. Despite the significant progress made, there are still key challenges to address in order to further advance flexible pressure sensors. Finally, the review concludes with a discussion on the future outlook of this rapidly evolving technology.