Jae-Hwan Kim

ORCID: 0000-0002-8940-652X
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About
Contact & Profiles
Research Areas
  • Advanced Sensor and Energy Harvesting Materials
  • Tactile and Sensory Interactions
  • Crystallization and Solubility Studies
  • X-ray Diffraction in Crystallography
  • Quantum Dots Synthesis And Properties
  • Non-Invasive Vital Sign Monitoring
  • Respiratory Support and Mechanisms
  • Neuroscience and Neural Engineering
  • ZnO doping and properties
  • 3D Printing in Biomedical Research
  • Risk and Safety Analysis
  • Advanced MEMS and NEMS Technologies
  • Electrospun Nanofibers in Biomedical Applications
  • Cellular Mechanics and Interactions
  • Genetic Neurodegenerative Diseases
  • Interactive and Immersive Displays
  • Advanced Memory and Neural Computing
  • Reliability and Maintenance Optimization
  • Urban Transport and Accessibility
  • Transportation Planning and Optimization
  • Mitochondrial Function and Pathology
  • Cancer Cells and Metastasis
  • Phase-change materials and chalcogenides
  • Conducting polymers and applications
  • Sympathectomy and Hyperhidrosis Treatments

Kumoh National Institute of Technology
2025

University of Illinois Urbana-Champaign
2015-2024

Northwestern University
2020-2024

Korea Research Institute for Human Settlements
2024

John Wiley & Sons (United States)
2023

Korea Advanced Institute of Science and Technology
2022

Korea Institute of Geoscience and Mineral Resources
2021

Chungnam National University Hospital
2016

Maria Fertility Hospital
2013

CHA University
2012

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....

10.1021/nl503779e article EN publisher-specific-oa Nano Letters 2015-01-13

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...

10.1038/ncomms15894 article EN cc-by Nature Communications 2017-06-21

Although a direct causative pathway from the gene mutation to selective neostriatal neurodegeneration remains unclear in Huntington's disease (HD), one putative pathological mechanism reported play prominent role pathogenesis of this neurological disorder is mitochondrial dysfunction. We examined mitochondria preferentially vulnerable striatal calbindin-positive neurons moderate-to-severe grade HD patients, using antisera against markers COX2, SOD2 and cytochrome c. Combined calbindin marker...

10.1093/hmg/ddq306 article EN Human Molecular Genetics 2010-07-21

Phase-change random access memory (PRAM) is considered as one of the most promising candidates for future memories because its good scalability and cost-effectiveness [1]. Besides implementations with standard interfaces like NOR flash or LPDDR2-NVM, application-oriented approaches using PRAM main-memory storage-class have been researched [2-3]. These studies suggest that noticeable merits can be achieved by in improving power consumption, system cost, etc. However, relatively low chip...

10.1109/isscc.2012.6176872 article EN 2012-02-01

Huntington's disease (HD) is a neurodegenerative disorder previously thought to be of primary neuronal origin, despite ubiquitous expression mutant huntingtin (mHtt). We tested the hypothesis that mHtt expressed in astrocytes may contribute pathogenesis HD. To better understand contribution HD vivo , we developed novel mouse model using lentiviral vectors results selective into striatal astrocytes. Astrocytes expressing progressive phenotype reactive was characterized by marked decreased...

10.1093/hmg/ddq212 article EN cc-by-nc Human Molecular Genetics 2010-05-21

Dual-functioning displays, which can simultaneously transmit and receive information energy through visible light, would enable enhanced user interfaces device-to-device interactivity. We demonstrate that double heterojunctions designed into colloidal semiconductor nanorods allow both efficient photocurrent generation a photovoltaic response electroluminescence within single device. These dual-functioning, all-solution-processed double-heterojunction nanorod light-responsive light-emitting...

10.1126/science.aal2038 article EN Science 2017-02-10

Capabilities for continuous monitoring of pressures and temperatures at critical skin interfaces can help to guide care strategies that minimize the potential pressure injuries in hospitalized patients or individuals confined bed. This paper introduces a soft, skin-mountable class sensor system this purpose. The design includes pressure-responsive element based on membrane deflection battery-free, wireless mode operation capable multi-site measurements strategic locations across body. Such...

10.1038/s41467-021-25324-w article EN cc-by Nature Communications 2021-08-24

Abstract Individuals who are unable to walk independently spend most of the day in a wheelchair. This population is at high risk for developing pressure injuries caused by sitting. However, early diagnosis and prevention these still remain challenging. Herein, we introduce battery-free, wireless, multimodal sensors movable system continuous measurement pressure, temperature, hydration skin interfaces. The device design includes crack-activated sensor with nanoscale encapsulations enhanced...

10.1038/s41528-023-00238-3 article EN cc-by npj Flexible Electronics 2023-02-10

Here, we report multilayer stacking of films quantum dots (QDs) for the purpose tailoring energy band alignment between charge transport layers and light emitting different color in dot light-emitting diodes (QD LED) maximum efficiency full operation. The performance QD LEDs formed by transfer printing compares favorably to that conventional devices fabricated spin-casting. Results indicate zinc oxide (ZnO) titanium dioxide (TiO2) can serve effectively as electron (ETLs) red green/blue LEDs,...

10.1021/acsnano.5b06387 article EN ACS Nano 2016-04-14

Soft, skin-integrated electronic sensors can provide continuous measurements of diverse physiological parameters, with broad relevance to the future human health care. Motion artifacts can, however, corrupt recorded signals, particularly those associated mechanical signatures cardiopulmonary processes. Design strategies introduced here address this limitation through differential operation a matched, time-synchronized pair high-bandwidth accelerometers located on parts anatomy that exhibit...

10.1126/sciadv.abg3092 article EN cc-by-nc Science Advances 2021-05-12

Microfluidic technologies have wide-ranging applications in chemical analysis systems, drug delivery platforms, and artificial vascular networks. This latter area is particularly relevant to 3D cell cultures, engineered tissues, organs, where volumetric capabilities fluid distribution are essential. Existing schemes for fabricating microfluidic structures constrained realizing desired layout designs, producing physiologically microvascular structures, and/or integrating active...

10.1126/sciadv.abj3686 article EN cc-by-nc Science Advances 2021-10-21

Thermal sensations contribute to our ability perceive and explore the physical world. Reproducing these in a spatiotemporally programmable manner through wireless computer control could enhance virtual experiences beyond those supported by video, audio and, increasingly, haptic inputs. Flexible, lightweight thin devices that deliver patterns of thermal stimulation across large areas skin at any location body are great interest this context. Applications range from gaming remote...

10.1073/pnas.2217828120 article EN cc-by-nc-nd Proceedings of the National Academy of Sciences 2023-01-30

Sensations of heat and touch produced by receptors in the skin are essential importance for perceptions physical environment, with a particularly powerful role interpersonal interactions. Advances technologies replicating these sensations programmable manner have potential not only to enhance virtual/augmented reality environments but they also hold promise medical applications individuals amputations or impaired sensory function. Engineering challenges achieving interfaces precise spatial...

10.1073/pnas.2404007121 article EN cc-by-nc-nd Proceedings of the National Academy of Sciences 2024-05-20

<title>Abstract</title> Mechanical computing, utilizing mechanical deformation to perform calculations, has attracted significant attention as an innovative computing strategy for achieving high accuracy and exceptional physical robustness. However, its reliance on passive displacement limits applicability complex computations. This study presents a novel system that enables active light signal modulation through reversible by integrating soft 3D electronics. The proposed features: 1)...

10.21203/rs.3.rs-6200645/v1 preprint EN Research Square (Research Square) 2025-04-18
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