Green Strategies to Printed Sensors for Healthcare Applications

Printed sensors have been explored for more than two decades and have now gained significant interest in real-world applications due to low cost, simple and scalable fabrication processes. These sensors must satisfy the requirement of long-term usage as wearable devices, especially for health monitoring and rehabilitation purposes. However, when such devices are continuously worn on the body or implanted within the body, they may cause unexpected risk to the patient’s health. To avoid potential health risks, transition to ‘green’ strategies has already begun in the research, design and manufacturing of these sensors. This review is dedicated to offering a snapshot of current realization and future prospects of printed sensors through green strategies. The utilization of eco-friendly and cost-effective materials for sensor components and the adoption of various printing methods are summarized. The reusability and multi-detection capability of printed sensors that are within the scope of green analytical chemistry are discussed.