A5101604430- Electrospun Nanofibers in Biomedical Applications
- Bone Tissue Engineering Materials
- Graphene and Nanomaterials Applications
- Advanced Materials and Mechanics
- Silicon Carbide Semiconductor Technologies
- 3D Printing in Biomedical Research
- Electromagnetic Compatibility and Noise Suppression
- Advanced DC-DC Converters
- Nanoparticles: synthesis and applications
- Shoulder Injury and Treatment
- Pickering emulsions and particle stabilization
- Shoulder and Clavicle Injuries
- Advanced Optical Network Technologies
- Advanced Sensor and Energy Harvesting Materials
- Additive Manufacturing and 3D Printing Technologies
- Polymer-Based Agricultural Enhancements
- Surface Modification and Superhydrophobicity
- Antenna Design and Analysis
- Periodontal Regeneration and Treatments
- Nanoparticle-Based Drug Delivery
- Nanomaterials and Printing Technologies
- Millimeter-Wave Propagation and Modeling
- Heat Transfer and Optimization
- Tendon Structure and Treatment
- Advanced Photonic Communication Systems
Chonnam National University
2017-2025
Chonnam National University Hospital
2025
Convergence
2025
LG (United States)
2025
Myongji University
2002-2024
Gwangju Institute of Science and Technology
2021-2022
Texas Instruments (United States)
2015-2018
Virginia Tech
2013-2015
Korea Advanced Institute of Science and Technology
2008-2014
Gyeongsang National University Hospital
2013-2014
Over the past few decades, hydrogels have attracted considerable attention as promising biomedical materials. However, conventional require improved mechanical properties, such brittleness, which significantly limits their widespread use. Recently, with remarkably toughness been developed; however, low biocompatibility must be addressed. In this study, we developed a tough graphene hybrid hydrogel nanostructures. The resultant exhibited remarkable properties while representing an aligned...
Abstract Nanomaterials associated with plant growth and crop cultivation revolutionize traditional concepts of agriculture. However, the poor reiterability these materials in agricultural applications necessitates development environmentally‐friendly approaches. To address this, biocompatible gelatin nanoparticles (GNPs) as nanofertilizers a small size (≈150 nm) positively charged surface (≈30 mV) that serve versatile tool practices is designed. GNPs load agrochemical agents to improve...
Nanotechnology has facilitated the development of active food packaging systems with functions that could not be achieved by their traditional counterparts. Such smart and can improve shelf life perishable products overcome major bottlenecks associated fabrication safe environmentally friendly systems. Herein, we used a plasma-enabled surface modification strategy to fabricate biodegradable flexible nanoporous polycaprolactone-based (FNP) films for Their capacity preserving tomatoes,...
Phase change materials (PCMs) are considered useful tools for efficient thermal management and energy utilization in various application fields. In this study, a colloidal PCM-in-liquid metal (LM) system is demonstrated as novel platform composite with excellent latent heat storage capability, high electrical conductivities, unique viscoelastic properties. the proposed formulation, eutectic Ga–In utilized high-thermal-conductivity high-fluidity liquid matrix which paraffinic PCM...
A gallium‐based liquid metal patterning for paper‐based soft electronics is reported. method proposed that rapid and straightforward on a printing paper using selective wetting properties obtained by lyophilic lyophobic coating. The coated with waterproof agent followed toner desired pattern in an inverse pattern. Then sponge roller soaked rolled filled into the exposed coating to create It believed this one of most convenient yet quite versatile methods. minimum line width, spacing,...
Plant growth involves intricate processes, including cell division, expansion, and tissue organization, necessitating innovative technologies that emulate native cell-microenvironment interactions. Herein, we introduce ultra-tiny topographical cues (e.g., patterned micro/nanoscale substrates) mimic micronanofiber structures found in the plant wall. We cultured Arabidopsis on unique wall-inspired within specialized chambers positively influenced various physiological aspects compared to a...
Abstract Ultra-tiny-scale technology representing engineered micro- and nano-scale materials has gained considerable attention for a wide range of applications, including hearing restoration. The advent loss its recovery been the topic intense discussion since many decades. Although conventional treatments partially support recovery, they present certain limitations such as subsequent immune response donor site morbidity leading to even worsened sensory disturbances. Microscale-...
Visible-light communication provides many advantages over other forms of communications, such as visibility, high SNR (Signal to Noise Ratio), easy installation, freedom interference from radio or electromagnetic waves, usage license free frequency band, and security. Furthermore, the exponentially increasing requirements quality LEDs (Light Emitting Diodes) have encouraged development visible-light that makes use LEDs. In a system, an LOS (Line Sight) link between two transceivers should be...
Earlier planning and subsequent experience are described for the development of a 50-W, 300-Vdc power converter with density targeted at 100 W/in <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sup> efficiency 95%. To achieve desired density, 3 - 5 MHz switching frequency was attempted, necessitating choice commercial eGaN xmlns:xlink="http://www.w3.org/1999/xlink">®</sup> (enhancement-mode GaN FETs). Three-level isolated ZVS...
Acute and chronic rotator cuff (RC) tears are common etiologies of shoulder disabilities. Despite the advanced surgical techniques graft materials available for tendon repair, high re-tear rate remains a critical challenge in RC healing. Inspired by highly organized nanotopography extracellular matrix (ECM) tissue shoulder, nanotopographic scaffolds developed using polycaprolactone repair regeneration tendons. The show appropriate flexibility mechanical properties application regeneration....
The design of transplantable scaffolds for tissue regeneration requires gaining precise control topographical properties. Here, we propose a methodology to fabricate hierarchical multiscale with controlled hydrophilic and hydrophobic properties by employing capillary force lithography in combination plasma modification. Using our method, fabricated biodegradable biomaterial (i.e., polycaprolactone (PCL))-based nitrogen gas (N-FN) oxygen plasma-assisted flexible nanotopographic (O-FMN)...
Metamaterials, characterized by their unique artificial periodic structures, exhibit extraordinary abilities in controlling electromagnetic waves not found natural materials. Metamaterial absorbers, for example, have been developed patterning solid conductive materials on dielectric surfaces. However, the foldability limitations of conductors make them unsuitable as foldable metamaterial absorbers since they lose those desirable properties when folded. To address this challenge, various...
A planar power module was developed, and a gate-driver circuit with an over-current protection planned to integrate into the module. After reviewing several current-sensing methods, giant-magneto-resistive (GMR) sensor chosen as method. However, there were factors that hindered accurate measurement. The high junction temperature of dice gave influence operating GMR sensor, magnetic-flux distribution seen by also non-uniform due skin effect. response analyzed experiments, showed about 3.45%...
A 1200V, 25A bi-directional silicon DMOS-IGBT has been successfully fabricated using a hydrophobic bonding process at low temperature (400°C). With the aid of glass carrier approach, flat and clean surface for producing an electrically stable transparent junction was achieved. The static dynamic performance with without back-side gate control are presented compared.
Eggshell membrane (ESM)-based biomaterials have generated significant interest for their potential biomedical applications, including those in tissue engineering and regenerative medicine. Herein, the development of a bioactive ESM-based nanopatterned scaffold enhancing adhesion functions cells has been described. To control shape raw ESM with entangled protein fibers, two-step dissolution technique is used. Subsequently, nanoimprint lithography applied to solution fabricate scaffolds...
Inner ear organoids (IEOs) are 3D structures grown in vitro, which can mimic the complex cellular structure and function of inner ear. IEOs potential solutions to problems related development, disease modeling, drug delivery. However, current approaches generating using chemical factors have a few limitations, resulting unpredictable outcomes. In this study, we propose use nanomaterial-based approaches, specifically by graphene oxide (GO). GO's unique properties promote cell-extracellular...
Chronic rotator cuff tears (RCTs) are one of the most common injuries shoulder pain. Despite recent advances in surgical techniques and improved clinical outcomes arthroscopically repaired cuffs (RCs), complete functional recovery-without retear-of RC tendon through tendon-to-bone interface (TBI) regeneration remains a key goal to be achieved. Inspired by highly organized nanostructured extracellular matrix tissue, we propose herein tissue-engineered nano-construct (TNC) for regeneration....