A5082035342- Advanced Sensor and Energy Harvesting Materials
- Conducting polymers and applications
- Neuroscience and Neural Engineering
- EEG and Brain-Computer Interfaces
- Advanced Memory and Neural Computing
- Chalcogenide Semiconductor Thin Films
- Tactile and Sensory Interactions
- Advanced Thermoelectric Materials and Devices
- Phase-change materials and chalcogenides
- Advanced Materials and Mechanics
- Thin-Film Transistor Technologies
- Transition Metal Oxide Nanomaterials
- Semiconductor materials and devices
- Perovskite Materials and Applications
- Semiconductor materials and interfaces
- Fuel Cells and Related Materials
- Interactive and Immersive Displays
- ZnO doping and properties
- Dermatologic Treatments and Research
- Electrospun Nanofibers in Biomedical Applications
- Innovative Microfluidic and Catalytic Techniques Innovation
- Nanomaterials and Printing Technologies
- Textile materials and evaluations
- Wound Healing and Treatments
- Diamond and Carbon-based Materials Research
Yonsei University
2020-2025
California Institute of Technology
2024-2025
Abstract Stretchable interconnects with invariable conductivity and complete elasticity, which return to their original shape without morphological hysteresis, are attractive for the development of stretchable electronics. In this study, a polydimethylsiloxane‐coated multifilament polyurethane‐based helical conductive fiber is developed. The fibers exhibit remarkable electrical performance under stretching, negligible mechanical high reliability repetitive deformation (10 000 cycles...
Abstract Fiber‐based electronics are essential components for human‐friendly wearable devices due to their flexibility, stretchability, and wearing comfort. Many thermoelectric (TE) fabrics investigated with diverse materials manufacturing methods meet these potential demands. Despite such advancements, applying inorganic TE stretchable platforms remains challenging, constraining broad adoption in electronics. Herein, a multi‐functional bismuth telluride (Bi 2 Te 3 ) fabric is fabricated by...
Abstract Recently, one of the primary concerns in e‐textile‐based healthcare monitoring systems for chronic illness patients has been reducing wasted power consumption, as system should be always‐on to capture diverse biochemical and physiological characteristics. However, general conductive fibers, a major component existing wearable systems, have positive gauge‐factor (GF) that increases electrical resistance when stretched, so no choice but consume continuously. Herein, twisted...
Abstract Advances in electronic textiles (E‐textiles) for next‐generation wearable electronics have originated from making a balance between electrical and mechanical properties of stretchy conductive fibers. Despite such progress, the trade‐off issue is still challenge when individual fibers are woven and/or stretched undesirably. Time‐consuming fiber weaving has limited practical uses scalable E‐textiles. Here, facile method presented to fabricate ultra‐stretchable Ag nanoparticles...
Abstract Implantable neural probes are a crucial part of brain–machine interfaces that serve as direct interacting routes between tissues and machines. The require both mechanical electrical properties to acquire high‐quality signals from individual neurons with minimal tissue damage. However, overcoming the trade‐off flexibility property is still challenging. Herein, fiber probe, composed core polymer Au nanoparticles (AuNPs) on outer shell, fabricated by absorbing precursor following in...
Based on their high applicability to wearable electronics, fiber-based stretchable electronics have been developed via different strategies. However, the electrical conductivity of a fiber electrode is severely degraded, following deformation upon stretching. Despite introduction conductive buckled structures resolve this issue, there still exist limitations regarding simultaneous realizations and stretchability. Here, we exploit dense distribution Ag nanoparticle (AgNP) network in...
Abstract Thermoelectric (TE) fibers have excellent potential for multimodal sensor, which can detect mechanical and thermal stimuli, used in advanced wearable electronics personalized healthcare system. However, previously reported TE limitations use sensors due to the following reasons: 1) composed of carbon or organic materials low performance variations effectively; 2) rigid inorganic are not stretchable, limiting their ability deformation. Herein, first stretchable fiber‐based sensor is...
Bioelectronic face masks can easily collect biomarkers in saliva, which free cortisol is abundant. However, conventional bioelectronic involve significant challenges terms of permeability and inhalation due to their nonpermeable film-type structure. Herein, we introduce a flexible permeable nanomesh-based wearable biosensor designed for that monitor levels. The diameter the nanofiber matrix has range 200 500 nm offers outstanding flexibility (2% resistance change at bending radius 2 mm),...
Abstract Simultaneous monitoring of electrophysiology and magnetic resonance imaging (MRI) could guide the innovative diagnosis treatment various neurodegenerative diseases that are previously impossible. However, this technique is difficult because existing metal‐based implantable neural interface for not free from signal distortions its intrinsic susceptibility while performing an MRI implanted area interface. Moreover, brain tissue heating implants generated by radiofrequency field poses...
The need for wearable electronic devices continues to grow, and the research is under way stretchable fiber-type sensors that are sensitive surrounding atmosphere will provide proficient measurement capabilities. Currently, one-dimensional fiber have several limitations their extensive use because of complex structures sensing mechanisms. Thus, it essential miniaturize these materials with durability while integrating multiple Herein, we present an ultrasensitive conductive sensor using PdNP...
As the field of wearable electronics continues to expand, integration inorganic thermoelectric (TE) materials into fabrics has emerged as a promising development due their excellent TE properties. However, conventional thermal methods for fabricating are unsuitable applications because high temperatures, resulting in rigid materials. Herein, nonthermally fabricated silver selenide (Ag2Se) fabric is developed that can be effectively integrated applications. Ag2Se nanoparticles densely formed...
Stretchable Thermoelectric Fibers In article number 2407759, Byeonggwan Kim, Taeyoon Lee, and co-workers develop a stretchable thermoelectric (TE) fiber-based multimodal sensor using the inorganic TE material copper(I) iodide (CuI). A robotic hand integrated with this innovative is depicted grasping human hand, demonstrating an emulation of skin somatosensory system. Temperature change, tensile strain, pressure can be detected through distinct parameters output voltage, electrical...
Controlling the contact properties of a copper (Cu) electrode is an important process for improving performance amorphous indium–gallium–zinc oxide (a-IGZO) thin-film transistor (TFT) high-speed applications, owing to low resistance–capacitance product constant Cu. One many challenges in Cu application a-IGZO inhibiting high diffusivity, which causes degradation TFT by forming electron trap states. A self-assembled monolayer (SAM) can perfectly act as diffusion barrier (DB) and passivation...
Keloids are a common fibrotic disease of the skin, with pathological hallmark excessive extracellular matrix synthesis due to abnormal fibroblast activity. Since keloids clinically arise in areas high mechanical tension, mechanotransductory pathway may be attributed its pathogenesis. We aimed establish preclinical platform elucidate underlying mechanism keloid development and clinical persistence.
In article number 2005447, Donghee Son, Taeyoon Lee, and co-workers develop self-bondable self-weavable fibers as novel components for fiber-based electronic devices. The are both conductive stretchable, which eliminates the trade-off associated with percolation theory. integration interconnects represents a new strategy
Objective: Exercise capacity is often reduced after heart transplantation. We aimed to investigate the association between aortic stiffness and exercise Methods: retrospectively analyzed data of patients who underwent a cardiopulmonary test central hemodynamic measurements over 1 year following transplantation, from Janary 2011 June 2018. Results: A total 54 (mean age, 49 years; 72% men) were analyzed. The median peak oxygen uptake level was 21.1 ml/kg per min at time 13 months In univariate...
In article number 1910026, Kyung-In Jang, Taeyoon Lee, and co-workers develop a highly stretchable reliable 3D helical fiber to fabricate interconnects for wearable devices. The biaxially passive matrix light-emitting diode display skin-mountable band-type oximeter provide new insights into in electronics their biomedical applications.