3D textile structure-induced local strain for a highly amplified piezoresistive performance of carbonized cellulose fabric based pressure sensor for human healthcare monitoring

Wearable Graphene-based smart face mask for Real-Time human respiration monitoring

“…A response time of 150 ms is reached, however incineration is needed for recycling of the silver interdigital electrodes, hence extensive use of this technology may increase the air pollution. Other piezoresistive pressure sensors consist of 2D-based materials deposited on cotton cloth [24] or cellulose fabrics [25] . Conductive polymers such as PANI, are also used [26] .…”

“…Other piezoresistive pressure sensors consist of 2D-based materials deposited on tissue papers [23] , cotton cloth [24] or cellulose fabrics [25] . Conductive polymers such as PANI, are also used [26] .…”

Recent advances in the material design for intelligent wearable devices

“…6b–d, Choi et al proposed a 3D textile structure-based pressure sensor, which was fabricated from carbonized cellulose fabric (CCF). 167 As a pressure sensing element, pre-stressed monofilaments of 3D textiles could increase the local strain in the CCF and expand the area of contact between CCF fibers, resulting in a 9.6-fold increase in sensitivity. The result allowed excellent real-time monitoring of large joint movements (knee movements) and biosignals (pulse, speech, and breathing), which can be transmitted to the smartphone via Bluetooth.…”

Design of Elastomer-Based Piezoresistive Sensors: Materials, Structural Aspects, and Prospects

“…Copyright 2018 American Chemical Society. Reproduced with permission from ref . Copyright 2022 Elsevier.…”