A review on the features, performance and potential applications of hydrogel-based wearable strain/pressure sensors

This article aims to present a review on this exciting topic with a new insight on the hydrogel-based wearable strain sensors in terms of their features, strain sensory performance, and prospective applications. In this respect, we first briefly review recent advances related to designing the materials and the methods for promoting hydrogels' intrinsic features. Then, strain (both tensile and pressure) sensing performance of prepared hydrogels is critically studied, and alternative approaches for their high-performance sensing are proposed. Subsequently, this review provides several promising applications of hydrogel-based strain sensors, including bioapplications and human-machine interface devices. Finally, challenges and future outlooks of conductive and stretchable hydrogels employed in the wearable strain sensors are discussed.PMID:34768136 | DOI:10.1016/j.cis.2021.102553

Source: Advances in Colloid and Interface Science - November 12, 2021 Category: Chemistry Authors: Pooria Rahmani Akbar Shojaei Source Type: research