Manjakkal Libu, Dervin Saoirse, Dahiya Ravinder
Bendable Electronics and Sensing Technologies (BEST) Group, School of Engineering, University of Glasgow G12 8QQ UK
RSC Adv. 2020 Feb 27;10(15):8594-8617. doi: 10.1039/d0ra00016g.
There is a growing demand for developing wearable sensors that can non-invasively detect the signs of chronic diseases early on to possibly enable self-health management. Among these the flexible and stretchable electrochemical pH sensors are particularly important as the pH levels influence most chemical and biological reactions in materials, life and environmental sciences. In this review, we discuss the most recent developments in wearable electrochemical potentiometric pH sensors, covering the key topics such as (i) suitability of potentiometric pH sensors in wearable systems; (ii) designs of flexible potentiometric pH sensors, which may vary with target applications; (iii) materials for various components of the sensor such as substrates, reference and sensitive electrode; (iv) applications of flexible potentiometric pH sensors, and (v) the challenges relating to flexible potentiometric pH sensors.
对开发可穿戴传感器的需求日益增长，这些传感器能够早期非侵入性地检测慢性疾病的迹象，从而实现自我健康管理。其中，柔性可拉伸电化学pH传感器尤为重要，因为pH值影响材料、生命和环境科学中的大多数化学和生物反应。在本综述中，我们讨论了可穿戴电化学电位型pH传感器的最新进展，涵盖以下关键主题：（i）电位型pH传感器在可穿戴系统中的适用性；（ii）柔性电位型pH传感器的设计，其可能因目标应用而异；（iii）传感器各组件的材料，如基底、参比电极和敏感电极；（iv）柔性电位型pH传感器的应用；以及（v）与柔性电位型pH传感器相关的挑战。
