Recent Advances in Flexible Sensors and Their Applications

Abstract

Flexible sensors are low cost, wearable, and lightweight, as well as having a simple structure as per the requirements of engineering applications. Furthermore, for many potential applications, such as human health monitoring, robotics, wearable electronics, and artificial intelligence, flexible sensors require high sensitivity and stretchability. Herein, this paper systematically summarizes the latest progress in the development of flexible sensors. The review briefly presents the state of the art in flexible sensors, including the materials involved, sensing mechanisms, manufacturing methods, and the latest development of flexible sensors in health monitoring and soft robotic applications. Moreover, this paper provides perspectives on the challenges in this field and the prospect of flexible sensors.

Herbal molecule-mediated dual network hydrogels with adhesive and antibacterial properties for strain and pressure sensing

“…Flexible and wearable sensors that possess the capability to convert a mechanical stimulus into electrical signals have been extensively developed in the elds of human motion monitoring, physiological monitoring, so robots, electronic skin, and human-machine interfaces. [1][2][3] Compared with traditional sensors made of metals or elastomers, exible hydrogels are superior in terms of adjustable stretchability, skin-like modulus, biocompatibility, and biodegradability. 4,5 These intrinsic advantages make them promising candidates for exible sensors.…”

Optimization of Piezoresistive Strain Sensors Based on Gold Nanoparticle Deposits on PDMS Substrates for Highly Sensitive Human Pulse Sensing

“…Over a decade, intensive efforts have been devoted to building flexible sensors using conductive nanomaterials based on piezoresistive mechanisms. In particular, highly sensitive tactile sensors can be made quite effectively with gold nanoparticles [10,11]. Compared to nanoparticles of other metals [5,12], there are several benefits to choosing AuNPs in the following aspects.…”

“…To optimize the sensor fabrication for a better sensitivity regarding to the strain and pressure sensing, this study investigates the material parameters for Au NP preparation and film deposition, including surfactants, particle concentrations and pH values of the Over a decade, intensive efforts have been devoted to building flexible sensors using conductive nanomaterials based on piezoresistive mechanisms. In particular, highly sensitive tactile sensors can be made quite effectively with gold nanoparticles [10,11]. Compared to nanoparticles of other metals [5,12], there are several benefits to choosing AuNPs in the following aspects.…”

Wide-Range Flexible Capacitive Pressure Sensors Based on Dielectrics with Various Porosity

“…With the deepening research in the field of Artificial Intelligence (AI), it creates higher requirements for flexible sensors [ 1 , 2 , 3 , 4 , 5 , 6 , 7 ]. Among all these sensors, pressure sensors have been widely concerned because of their wide application [ 8 ].…”