High resolution skin-like sensor capable of sensing and visualizing various sensations and three dimensional shape

Abstract

Human skin contains multiple receptors, and is able to sense various stimuli such as temperature, pressure, force, corrosion etc, and to feel pains and the shape of objects. The development of skin-like sensors capable of sensing these stimuli is of great importance for various applications such as robots, touch detection, temperature monitoring, strain gauges etc. Great efforts have been made to develop high performance skin-like sensors, but they are far from perfect and much inferior to human skin as most of them can only sense one stimulus with focus on pressure (strain) or temperature, and are unable to visualize sensations and shape of objects. Here we report a skin-like sensor which imitates real skin with multiple receptors, and a new concept of pain sensation. The sensor with very high resolution not only has multiple sensations for touch, pressure, temperature, but also is able to sense various pains and reproduce the three dimensional shape of an object in contact.

Flexible Substrate-Based Devices for Point-of-Care Diagnostics

“…Paper-based diagnostic devices are also discussed in this review from the perspective of latest advances in multiplexing and enhancing sensitivity for POC diagnostics. Polymer-based flexible devices are discussed in detail with regard to their capability to detect/measure targeted biomarkers from biological fluids or monitoring physiological parameters [16, 17, 20] and integration into wearable devices. Emerging smartphone and computer-based wireless technologies offer unprecedented ease of data collection, analysis, storage and communication, and they have been increasingly tethered with wearable devices for POC applications.…”

Soft Nanocomposite Based Multi-point, Multi-directional Strain Mapping Sensor Using Anisotropic Electrical Impedance Tomography

“…Thus far, many studies on large strain sensing with high gauge factors have been reported based on elastomeric composites dispersed with conductive nanoparticles1011, carbon nanotubes12131415161718, nanowires12192021, and graphenes2223. Moreover, the advances of soft and stretchable conductors132425262728 enabled the acquisition of tactile information from curved surfaces using arrays of stretchable electrodes32729.…”

“…Arrays of parallel stretchable electrodes and piezoresistive elastomeric composites have been commonly utilized to obtain the tactile information from large areas361829. However, multi-directional tactile information requires additional stretchable electrodes in limited space, which increases the difficulties in the fabrication process.…”

Paper‐Based Resistive Networks for Scalable Skin‐Like Sensing

“…With the exception of using a single electrode-based sensing technique to make natural and inanimate objects become user interfaces, there has been a lack of effort in the reduction of the number of wired leads required for scalable sensing of touch. [12][13][14][15][16] For example, Someya and co-workers demonstrated an application of thin-film transistors in skin-like sensors capable of measuring distributed pressures over a 9 cm × 9 cm footprint. [10] These neural networks do not depend on having a pair of running wires for each location.…”

“…[12][13][14][15][16] For example, Someya and co-workers demonstrated an application of thin-film transistors in skin-like sensors capable of measuring distributed pressures over a 9 cm × 9 cm footprint. [12][13][14][15][16] For example, Someya and co-workers demonstrated an application of thin-film transistors in skin-like sensors capable of measuring distributed pressures over a 9 cm × 9 cm footprint.…”