A5006572968- Advanced Sensor and Energy Harvesting Materials
- Neuroscience and Neural Engineering
- Nanowire Synthesis and Applications
- Advanced Memory and Neural Computing
- Conducting polymers and applications
- EEG and Brain-Computer Interfaces
- Thin-Film Transistor Technologies
- Tactile and Sensory Interactions
- Muscle activation and electromyography studies
- Photoreceptor and optogenetics research
- Advanced Materials and Mechanics
- Neural dynamics and brain function
- solar cell performance optimization
- Nanomaterials and Printing Technologies
- Advancements in Semiconductor Devices and Circuit Design
- Silicon Nanostructures and Photoluminescence
- Gas Sensing Nanomaterials and Sensors
- Silicon and Solar Cell Technologies
- Semiconductor Quantum Structures and Devices
- Nanoplatforms for cancer theranostics
- Advanced Thermoelectric Materials and Devices
- Molecular Communication and Nanonetworks
- Gaze Tracking and Assistive Technology
- Chalcogenide Semiconductor Thin Films
- Neural Networks and Applications
Korea Institute of Science & Technology Information
2021-2025
Yonsei University
2017-2025
Korea Institute of Science and Technology
2022-2025
Korean Association Of Science and Technology Studies
2022-2025
Pohang University of Science and Technology
2024-2025
University of Illinois Urbana-Champaign
2009-2017
Korea Institute of Civil Engineering and Building Technology
2015
We report classes of electronic systems that achieve thicknesses, effective elastic moduli, bending stiffnesses, and areal mass densities matched to the epidermis. Unlike traditional wafer-based technologies, laminating such devices onto skin leads conformal contact adequate adhesion based on van der Waals interactions alone, in a manner is mechanically invisible user. describe incorporating electrophysiological, temperature, strain sensors, as well transistors, light-emitting diodes,...
Reversible Implants Silicon electronics are generally designed to be stable and robust—it would counterproductive if the key parts of your computer or cell phone slowly dissolved away while you were using it. In order develop transient for use as medical implants, Hwang et al. (p. 1640 , see cover) produced a complete set tools materials that needed make standard devices. Devices have specific lifetime, after which component materials, such porous silicon silk, resorbed by body.
Abstract Hard and soft structural composites found in biology provide inspiration for the design of advanced synthetic materials. Many examples bio-inspired hard materials can be literature; far less attention has been devoted to systems. Here we introduce deterministic routes low-modulus thin film with stress/strain responses that tailored precisely match non-linear properties biological tissues, application opportunities range from biomedical devices constructs tissue engineering. The...
Here we demonstrate materials and operating conditions that allow for high-resolution printing of layers quantum dots (QDs) with precise control over thickness submicron lateral resolution capabilities use as active QD light-emitting diodes (LEDs). The shapes thicknesses the patterns exhibit systematic dependence on dimensions nozzle ink composition in ways nearly arbitrary, when exploited a fully automated tool. Homogeneous arrays QDs serve basis corresponding LEDs excellent performance....
Low modulus, compliant systems of sensors, circuits and radios designed to intimately interface with the soft tissues human body are growing interest, due their emerging applications in continuous, clinical-quality health monitors advanced, bioelectronic therapeutics. Although recent research establishes various materials mechanics concepts for such technologies, all existing approaches involve simple, two-dimensional (2D) layouts constituent micro-components interconnects. Here we introduce...
Thermoelectric coils for energy harvesting are fabricated in miniature flexible devices.
Abstract Materials and fabrication procedures are described for bioresorbable transistors simple integrated circuits, in which the key processing steps occur on silicon wafer substrates, schemes compatible with methods used conventional microelectronics. The approach relies an unusual type of insulator to yield devices that exploit ultrathin sheets monocrystalline semiconductor, thin films magnesium electrodes interconnects, dioxide oxide dielectrics, silk substrates. A range component...
Significance A critical obstacle of flexible electronics for chronic implants is the absence thin-film barriers to biofluids with multidecade lifetimes. Previously explored materials are unsuitable due limitations ( i ) extrinsic factors, such as practical inability avoid localized defects, and/or ii intrinsic properties, finite water permeability. The work presented here overcomes these challenges by combining pristine thermal SiO 2 layers processing steps their integration onto...
Abstract Recent progress in the synthesis and deterministic assembly of advanced classes single crystalline inorganic semiconductor nanomaterial establishes a foundation for high-performance electronics on bendable, even elastomeric, substrates. The results allow systems with capabilities that cannot be reproduced using conventional wafer-based technologies. Specifically, electronic devices rely unusual shapes/forms/constructs such semiconductors can offer mechanical properties, as...
A scalable neural interface technology projected to last at least 6 years in the body samples over a thousand brain sites using flexible electronics.
Monitoring the body temperature with high accuracy provides a fast, facile, yet powerful route about human in wide range of health information standards. Here, first ever ultrasensitive and stretchable gold-doped silicon nanomembrane (Au-doped SiNM) epidermal sensor array is introduced. The ultrasensitivity achieved by shifting freeze-out region to intrinsic carrier density modulation fermi energy level p-type SiNM through development novel gold-doping strategy. Au-doped readily transferred...
Abstract A wearable silent speech interface (SSI) is a promising platform that enables verbal communication without vocalization. The most widely studied methodology for SSI focuses on surface electromyography (sEMG). However, sEMG suffers from low scalability because of signal quality-related issues, including signal-to-noise ratio and interelectrode interference. Hence, here, we present novel by utilizing crystalline-silicon-based strain sensors combined with 3D convolutional deep learning...
Continuous glucose monitoring (CGM) allows patients with diabetes to manage critical disease effectively and autonomously prevent exacerbation. A painless, wireless, compact, minimally invasive device that can provide CGM is essential for the health conditions of freely moving diabetes. Here, we propose a glucose-responsive fluorescence-based highly sensitive biodegradable microneedle system. These ultrathin ultralight sensor arrays continuously precisely monitored concentration in...
Abstract Tactile function is essential for human life as it enables us to recognize texture and respond external stimuli, including potential threats with sharp objects that may result in punctures or lacerations. Severe skin damage caused by severe burns, cancer, chemical accidents, industrial accidents the structure of tissue well nerve system, resulting permanent tactile sensory dysfunction, which significantly impacts an individual’s daily life. Here, we introduce a fully-implantable...
Abstract Bioresorbable neural implants based on emerging classes of biodegradable materials offer a promising solution to the challenges secondary surgeries for removal implanted devices required existing implants. In this study, we introduce fully bioresorbable flexible hybrid opto-electronic system simultaneous electrophysiological recording and optogenetic stimulation. The soft device, composed materials, has direct optical electrical interface with curved cerebral cortex surface while...