A5074346700- Advanced Sensor and Energy Harvesting Materials
- Conducting polymers and applications
- Tactile and Sensory Interactions
- Perovskite Materials and Applications
- Dielectric materials and actuators
- Sleep and related disorders
- Pigment Synthesis and Properties
- Photopolymerization techniques and applications
- Modular Robots and Swarm Intelligence
- Advanced Memory and Neural Computing
- Interactive and Immersive Displays
- Respiratory Support and Mechanisms
- Polydiacetylene-based materials and applications
- Advanced Materials and Mechanics
- Obesity, Physical Activity, Diet
- Sleep and Wakefulness Research
- Photochromic and Fluorescence Chemistry
- Circadian rhythm and melatonin
- Hydrogels: synthesis, properties, applications
- Supramolecular Self-Assembly in Materials
- 2D Materials and Applications
- Neuroscience and Neural Engineering
- Additive Manufacturing and 3D Printing Technologies
- Sleep and Work-Related Fatigue
- Quantum Dots Synthesis And Properties
Seoul National University
2018-2024
Dunsan Korean Medicine Hospital
2022
Korea University
2020
Conventional organic light-emitting devices without an encapsulation layer are susceptible to degradation when exposed air, so realization of air-stable intrinsically-stretchable display is a great challenge because the protection against penetration moisture and oxygen even more difficult under stretching. An that composed electroluminescent device (SELD) integrated with stretchable color-conversion (SCCL) contains perovskite nanocrystals (PeNCs) proposed. PeNCs normally decay but they...
Recent growing pursuit of skin-mountable devices has been impeded by the complicated structures most sensing systems, containing electrode grids, stacked multilayers, and even external power sources. Here, a type touch sensing, termed "triboresistive sensing", is introduced for gridless recognition based on monolayered ionic generators. A homogeneous monolayer, i.e., poly(dimethylsiloxane) (PDMS), generates electricity electric field generated touch. Voltages at each corner PDMS rely...
Electrical anisotropy, which is characterized by the efficient transmission of electrical signals in specific directions, prevalent both natural and engineered systems. However, traditional anisotropically conductive materials are often rigid dry, thus limiting their utility applications aiming for seamless integration various technologies with biological tissues. In present study, we introduce a method precisely controlling microstructures insulating polymers to create highly composite...
Abstract As the demand for soft and flexible devices steadily increases, ionic applications demonstrated with gel materials have come under spotlight. Here, stretchable wearable diodes (SIDs) made from polyelectrolyte hydrogels are introduced. Polyelectrolyte mechanically modified using methacrylated polysaccharides while preserving ion‐permselectivity of poly(sulfopropyl acrylate) potassium salt (PSPA) poly([acrylamidopropyl]trimethylammonium chloride) (PDMAPAA‐Q), forming copolymers. Then,...
Abstract Thermo‐responsive hydrogels can generate the actuation force through volumetric transitions in response to temperature changes. However, their weak mechanical properties and fragile performance limit robust applications. Existing approaches enhance these have typically depended on additional components, leading an unavoidable interference performance. In this work, thermo‐responsive are fabricated solvent engineering. A particular solvent, N ‐methylformamide, interacts affinitively...
Abstract Existing gels are mostly polar, whose nature limits their role in soft devices. The intermolecular interactions of nonpolar polymer-liquid system typically weak, which makes the gel brittle. Here we report highly and transparent organogels. Even though elements only carbon hydrogen, elastic modulus, transparency, stretchability comparable to common hydrogels. A key strategy is introducing aromatic interaction into polymer-solvent system, resulting a high swelling ratio that enables...
Abstract Repositioning is a common guideline for the prevention of pressure injuries bedridden or wheelchair patients. However, frequent repositioning could deteriorate quality patient's life and induce secondary injuries. This paper introduces method continuous multi‐site monitoring temperature distribution from strategically deployed sensor arrays at skin interfaces via battery‐free, wireless ionic liquid sensors. The wirelessly delivered power enables stable operation sensor, which shows...
Soft artificial electroreceptors inspired by electroreception mechanism of rays can locate objects in a noncontact manner.
The random n-monolayer phase distributions and impurity phases impose challenges to achieving blue-emission quasi-2D perovskite light emitting diodes (PeLEDs), their formation mechanism is unclear. Here, we uncover the reasons behind distribution in perovskites by probing into molecular interactions at buried interface between substrates propose a mechanistic model depict film process. Furthermore, an interfacial decoupling layer, perfluorinated ionomer, was employed successfully mitigate...
Unlike pigment-based colors, which are determined by their molecular structure, diverse colors can be expressed a regular arrangement of nanomaterials. However, existing techniques for constructing such nanostructures have struggled to combine high precision and speed, resulting in narrow gamut, prolonged color fabrication time. Here, this work reports phototunable mono ink that generate wide range controlling regularly arranged nanostructure. Core-shell growth controlled polymerization time...
Sleep is an essential component of quality life. The majority people experience sleep problems that impact their Melatonin currently a representative aid. However, it classified as prescription drug in most countries, and consumers cannot purchase to improve sleep. This induction experiment mice aimed identify natural combination product (NCP) can create synergistic sleep-promoting effects. Based on the mechanism action sleep, we investigated whether phenomenological indicators change...
Triboresistive Touch Sensing In article number 2108586, Jeong-Yun Sun and co-workers report a novel type of touch sensing, termed triboresistive which is developed for self-powered gridless recognition. An ionic poly(dimethylsiloxane) exhibiting high transmittance (96.5%), stretchability (539.1%), resilience (99.0%), conductivity (0.25 mS m−1) designed to generate power based on the electric field generated by touch. The voltages ensure recognition positions without electrode grid layers...