A stretchable and strain-unperturbed pressure sensor for motion interference–free tactile monitoring on skins

Abstract

A stretchable pressure sensor can provide highly sensitive and strain-unperturbed measurement to pressures on deformed skins.

Skin bioelectronics towards long-term, continuous health monitoring

“…2). [34][35][36][37][38][39][40][41] We then conclude with a summary of the remaining challenges, opportunities, and future directions in the field of skin bioelectronics for long-term, continuous health monitoring.…”

Recent progress in strain-engineered elastic platforms for stretchable thin-film devices

“…Along with the increasing demand for wearable and bodyattachable devices, various types of sensors, including strain, pressure, temperature, and biosensors, capable of reading biosignals from the human body have been developed and applied to such applications. 11,[52][53][54][55][56][57][58][59][60][61][62][63][64][65][66][67][68] Typically, these sensors have been developed to be soft and thin to ensure accurate signal acquisition from the body by enabling conformable attachment to skin. Under such circumstances, strain-engineered substrates have been considered to be advantageous in fabricating thin-filmbased stretchable sensors.…”

Mechanical Sensors for Cardiovascular Monitoring: From Battery-Powered to Self-Powered

“…Resistive and capacitive sensors require an external power source for sensing, whereas piezoelectric and triboelectric sensors can convert pressure or strain directly into an electrical signal for self-powered sensing [ 22 ]. Generally, macro-/micro-/nanostructural design on the surface of these sensing materials can increase the effective contact area and force perception ability, thereby improving the sensitivity of the sensor and enabling it to sensitively detect weak external pressure changes [ 12 , 14 , 23 , 24 , 25 , 34 , 35 ].…”

“…Taking advantage of the electronic skin tactile sensors, Sihong Wang’s research group developed a pressure sensor with high flexibility and sensitivity [ 35 ]. This sensor provided constant sensing performance under stretching.…”