Abstract This review explores the current state-of-the-art wireless and mobile optical chemical sensors and biosensors. The review is organised into three sections, each of which investigates a major class of wireless and/or mobile optical chemical sensor: (i) optical sensors integrated with a radio transmitter/transceiver, (ii) wearable optical sensors, and (iii) smartphone camera-based sensors. In each section, the specific challenges and trade-offs surrounding the (bio)chemical sensing mechanism and material architecture, miniaturisation, integration, power requirements, readout, and sensitivity are explored with detailed examples of sensor systems from the literature. The analysis of 77 original research articles published between 2007 and 2017 reveals that healthcare and medicine, environmental monitoring, food quality, and sport and fitness are the target markets for wireless and mobile optical chemical sensor systems. In particular, the current trend for personal fitness tracking is driving research into novel colourimetric wearable sensors with smartphone readout. We conclude that despite the challenges, mobile and wearable optical chemical sensor systems are set to play a major role in the sensor Internet of Things.

中文翻译：

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无线和移动光学化学传感器和生物传感器

摘要 本综述探讨了当前最先进的无线和移动光学化学传感器和生物传感器。该评论分为三个部分，每个部分都研究了一类主要的无线和/或移动光学化学传感器：(i) 与无线电发射器/收发器集成的光学传感器，(ii) 可穿戴光学传感器，以及 (iii) 智能手机基于相机的传感器。在每一部分中，围绕（生物）化学传感机制和材料结构、小型化、集成、功率要求、读出和灵敏度的具体挑战和权衡将通过文献中的传感器系统的详细示例进行探讨。对 2007 年至 2017 年间发表的 77 篇原创研究文章的分析表明，医疗保健和医学、环境监测、食品质量、运动和健身是无线和移动光学化学传感器系统的目标市场。特别是，当前个人健身追踪的趋势正在推动对具有智能手机读数的新型比色可穿戴传感器的研究。我们得出的结论是，尽管面临挑战，移动和可穿戴光学化学传感器系统将在传感器物联网中发挥重要作用。