A5049956811- Advanced Sensor and Energy Harvesting Materials
- Tactile and Sensory Interactions
- Non-Invasive Vital Sign Monitoring
- Neuroscience and Neural Engineering
- Nanomaterials and Printing Technologies
- Analytical Chemistry and Sensors
- Supercapacitor Materials and Fabrication
- Advanced Materials and Mechanics
- Advanced Memory and Neural Computing
- Advanced Fiber Optic Sensors
- MXene and MAX Phase Materials
- Advanced Chemical Sensor Technologies
- Dielectric materials and actuators
Pohang University of Science and Technology
2021-2023
In fast and transient somatosensory processing, the relative timing of selected spikes is more important than spike frequency because ensemble first in trains encodes dynamic tactile information. Here, inspired by functional effectiveness spikes, we propose an artificial sensory system based on position-encoded spectrum. We use a mixed ion-electron conductor to generate potential signal. design receptors that have different ion relaxation times (τ); thus, sequence from creates spectrum,...
Abstract Although ion gels are attractive sensing materials for deformable epidermal sensors or implantable devices, their performances highly affected by environmental humidity change, so that reliability cannot be secured. This study proposes a new concept of maintaining the high‐precision temperature performance gel sensors. In this approach, hydrophobic layer is kept water‐saturated attaching hydrogel layer, rather than attempting to completely block water penetration. performs...
Abstract On‐skin healthcare patch‐type devices have great technological challenges in monitoring full‐day activities and wearing for multiple days without detachment. These can be overcome when the sensor is air permeable but waterproof. This study presents a light‐weight, highly stable, stretchable Au electrode that fabricated by sputtering on an imidized nanofiber mat. The contact surface of hydro‐wetting outer hydrophobic, so porous simultaneously has excellent sweat permeability...
Soft conductors are critical components in soft electronic devices. As applied high-profit applications bioelectronics to be attached the skin and internal organs, controllable adhesion is required for their long-term stable operation. Thus, production of practical conductive interfacing materials have been intensively studied. This perspective defined as a attachment deformable target surfaces (e.g., skin, device parts). review briefly reviewed various mechanisms introduced three structural...
Full advantage of stretchable electronic devices can be taken when utilizing an intrinsically power source. High-performance supercapacitors with a simple structure and solid-state operation are good sources for electronics. This study suggests new type stretchable, printable, electroactive ink consisting 1T-MoS2 fluoroelastomer (FE). The active material (1T-MoS2/FE) is made by fluorinating the metallic-phase MoS2 (1T-MoS2) nanosheets FE under high-power ultrasonication. in 1T-MoS2/FE has...
Moisture barriers are essential for ionic sensors because moisture has a direct impact on the stability and reliability of electrochemical properties. So far, stretchable that can maximize advantage using deformable ion gel as active material have been rarely investigated remain technological challenge. This study proposes four-layer (4L) barrier alternatively composed poly(styrene-isobutylene-styrene) copolymer (SiBS) film (2 μm in thickness) eutectic gallium-indium liquid metal (LM) (1...
Abstract Recent advances in scalable fabrication methods based on printing technologies have improved the yield and lowered cost of manufacturing epidermal sensors. However, modern still require expensive multi‐bio‐ink raw materials. A laser‐centric method that realizes a cost‐effective, scalable, streamlined process with easily used material equipment is reported. The fabricated patch can quickly respond to demands personalized models. Here, sensor applied continuous monitoring human...
Abstract An array of shear sensors is essential in tactile sensation as well the pressure sensors. Surprisingly, however, sensor rarely investigated mainly due to structural complexity measure horizontal forces from various directions and also mechanical softness required for preventing slip an object. Here, small that can recognize both force rotational angle fabricated. All device components are made deformable materials acquire sensor. This work presents a novel design small‐sized...