Han Eol Lee
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View article: Recent advances in transfer printing of inorganic thin films for flexible hybrid systems
Recent advances in transfer printing of inorganic thin films for flexible hybrid systems Open
The evolution of human–machine interfaces (HMI) toward more immersive and intuitive forms, such as wearable devices and augmented reality systems, demands the development of high-performance flexible electronics. Heterogeneous integration,…
View article: Quantitative imaging of individual bacterial cells: E. coli and B. subtilis via terahertz scattering-type scanning near-field optical microscopy
Quantitative imaging of individual bacterial cells: E. coli and B. subtilis via terahertz scattering-type scanning near-field optical microscopy Open
This technique offers a nonlabel, noninvasive method for bacterial identification, with promising implications for advanced biomedical applications.
View article: Portable surface acoustic wave sensor systems for microplastic detection in beverages
Portable surface acoustic wave sensor systems for microplastic detection in beverages Open
The escalating global plastic production (~ 390 million tons in 2022) and subsequent environmental release of microplastics necessitate urgent advancements in real-time detection technologies. While optical methods (Raman spectroscopy, FTI…
View article: 3D-printable alginate-MoS2-AgNWs hydrogel bioink for dual-mode wearable capacitive biosensors
3D-printable alginate-MoS2-AgNWs hydrogel bioink for dual-mode wearable capacitive biosensors Open
The advancement of bioinks capable of enabling multifunctional, skin-conformal sensing platforms is essential for the next generation of wearable health monitoring systems. In this study, we present a 3D-printed, dual-mode biosensor fabric…
View article: Wearable Strain Sensors via Tough and Conductive Hydrogel-Based MoS<sub><b>2</b></sub> Composites for Real-Time Motion Tracking
Wearable Strain Sensors via Tough and Conductive Hydrogel-Based MoS<sub><b>2</b></sub> Composites for Real-Time Motion Tracking Open
Wearable and flexible sensors, capable of transducing mechanical stimuli into electrical signals, have attracted significant attention for applications, such as human motion tracking, physiological monitoring, soft robotics, electronic ski…
View article: Examination of SAMEVAL: Software to calculate and evaluate sample sizes for national safeguards inspection in the Republic of Korea
Examination of SAMEVAL: Software to calculate and evaluate sample sizes for national safeguards inspection in the Republic of Korea Open
As the International Atomic Energy Agency (IAEA) implements the state level approach (SLA) as a safeguards approach, the role of a state system of accounting for and control (SSAC) becomes critically important. The Republic of Korea (ROK),…
View article: Self‐Healable and Conductive Hydrogel Nanocomposite with High Environmental Stability for Electromagnetic‐Interference‐Free Electrocardiography Patches
Self‐Healable and Conductive Hydrogel Nanocomposite with High Environmental Stability for Electromagnetic‐Interference‐Free Electrocardiography Patches Open
Electrocardiogram (ECG) sensor is emerging as an essential medical device for diagnosing various cardiovascular diseases in modern people. Conventional ECG sensors have investigated by several researchers, but they still have significant i…
View article: Wearable Multifunctional Health Monitoring Systems Enabled by Ultrafast Flash‐Induced <scp>3D</scp> Porous Graphene
Wearable Multifunctional Health Monitoring Systems Enabled by Ultrafast Flash‐Induced <span>3D</span> Porous Graphene Open
A wearable health monitoring system is a promising device for opening the era of the fourth industrial revolution due to increasing interest in health among modern people. Wearable health monitoring systems were demonstrated by several res…
View article: 3D-Printed Stretchable Electrodes Enabled by a Titanium/Acrylamide-Based Hydrogel Nanocomposite
3D-Printed Stretchable Electrodes Enabled by a Titanium/Acrylamide-Based Hydrogel Nanocomposite Open
Wearable electronics have been the focus of considerable interest in various fields, such as human-machine interfaces, soft robotics, and medical treatments, due to their flexibility, stretchability, and light weight. To address the shortc…
View article: Correction: Monolithic green-sensitive photodetectors enabled by a ZnSnN<sub>2</sub>/GaN nanorods/silicon double heterojunction
Correction: Monolithic green-sensitive photodetectors enabled by a ZnSnN<sub>2</sub>/GaN nanorods/silicon double heterojunction Open
Correction for ‘Monolithic green-sensitive photodetectors enabled by a ZnSnN 2 /GaN nanorods/silicon double heterojunction’ by Jeong Hyeon Kim et al. , Inorg. Chem. Front. , 2025, https://doi.org/10.1039/d4qi02418d.
View article: Wearable sweat-sensing patches for non-invasive and continuous health tracking
Wearable sweat-sensing patches for non-invasive and continuous health tracking Open
The demand for biosensing systems that accurately detect physiological signals and disease biomarkers while maintaining biocompatible surfaces drives ongoing research into advanced materials and novel designs. Wearable patch-based sensors …
View article: Light–Material Interactions Using Laser and Flash Sources for Energy Conversion and Storage Applications
Light–Material Interactions Using Laser and Flash Sources for Energy Conversion and Storage Applications Open
This review provides a comprehensive overview of the progress in light–material interactions (LMIs), focusing on lasers and flash lights for energy conversion and storage applications. We discuss intricate LMI parameters such as light sour…
View article: Body-attachable multifunctional electronic skins for bio-signal monitoring and therapeutic applications
Body-attachable multifunctional electronic skins for bio-signal monitoring and therapeutic applications Open
The lack of infrastructure and accessibility in medical treatments has been considered as a global chronic issue since the concept of treatment and prevention was presented. After the COVID-19 pandemic, the medical reaction capability for …
View article: Evaluation of MUF uncertainty based on GUM method for benchmark bulk handling facility
Evaluation of MUF uncertainty based on GUM method for benchmark bulk handling facility Open
The Republic of Korea is performing independent national inspections under the IAEA's State System of Accounting for and Control (SSAC), and developing an evaluation methodology for the material unaccounted for (MUF) to reinforce capabilit…
View article: Improved Energy Storage Density and Efficiency of Nd and Mn Co-Doped Ba0.7Sr0.3TiO3 Ceramic Capacitors Via Defect Dipole Engineering
Improved Energy Storage Density and Efficiency of Nd and Mn Co-Doped Ba0.7Sr0.3TiO3 Ceramic Capacitors Via Defect Dipole Engineering Open
In this paper, we investigate the structural, microstructural, dielectric, and energy storage properties of Nd and Mn co-doped Ba0.7Sr0.3TiO3 [(Ba0.7Sr0.3)1−xNdxTi1−yMnyO3 (BSNTM) ceramics (x = 0, 0.005, and y = 0, 0.0025, 0.005, and 0.01)…
View article: Improved Energy Storage Density and Efficiency of Nd and Mn Co-Doped Ba0.7Sr0.3TiO3 Ceramic Capacitors via Defect Dipole Engineering
Improved Energy Storage Density and Efficiency of Nd and Mn Co-Doped Ba0.7Sr0.3TiO3 Ceramic Capacitors via Defect Dipole Engineering Open
In this paper, we investigate the structural, microstructural, dielectric, and energy storage properties of Nd and Mn co-doped Ba0.7Sr0.3TiO3 [(Ba0.7Sr0.3)1-xNdxTi1-yMnyO3 (BSNTM) ceramics (x = 0, 0.005, and y = 0, 0.0025, 0.005, and 0.01)…
View article: Sweat-permeable electronic skin with a pattern of eyes for body temperature monitoring
Sweat-permeable electronic skin with a pattern of eyes for body temperature monitoring Open
Human-machine interface has been considered as a prominent technology for numerous smart applications due to their direct communication between humans and machines. In particular, wearable electronic skins with a free form factor have rece…
View article: Long‐Term UV Detecting Wearable Patches Enabled by III‐N Compound Semiconductor‐Based Microphotodetectors (Advanced Optical Materials 13/2023)
Long‐Term UV Detecting Wearable Patches Enabled by III‐N Compound Semiconductor‐Based Microphotodetectors (Advanced Optical Materials 13/2023) Open
In article number 223083, Daniel J. Joe, Han Eol Lee, and colleagues realize a porous wearable patch by stably attaching onto human skin for a week and continuously removing skin by-products. Based on III-N compound semiconductors, the wea…
View article: Light‐Induced Thin‐Film Transfer Processes Based on Phase Transition of GeSbTe and ITO Sacrificial Layers
Light‐Induced Thin‐Film Transfer Processes Based on Phase Transition of GeSbTe and ITO Sacrificial Layers Open
In the upcoming ubiquitous era, wearable/flexible electronics are spotlighted to get various types of numerous information in real time. Several researchers have investigated flexible materials, and developed diverse thin‐film transfer met…
View article: Direct visualization of carbon black aggregates in nitrile butadiene rubber by THz near-field microscope
Direct visualization of carbon black aggregates in nitrile butadiene rubber by THz near-field microscope Open
The use of filling agents for rubber reinforcement is beneficial in various industrial applications, and several experimental methods have been used to study the effect of fillers on rubber. However, due to the lack of a suitable imaging t…
View article: Direct Visualization of Carbon Black Aggregates in Nitrile Butadiene Rubber by THz Near-field Microscope
Direct Visualization of Carbon Black Aggregates in Nitrile Butadiene Rubber by THz Near-field Microscope Open
The use of filling agents for rubber reinforcement is beneficial in various industrial applications, and several experimentalmethods have been used to study the effect of fillers on rubber. However, due to the lack of a suitable imaging te…
View article: Wearable Surface‐Lighting Micro‐Light‐Emitting Diode Patch for Melanogenesis Inhibition
Wearable Surface‐Lighting Micro‐Light‐Emitting Diode Patch for Melanogenesis Inhibition Open
Wearable light‐emitting diode (LED)‐based phototherapeutic devices have recently attracted attention as skin care tools for wrinkles, acne, and hyperpigmentation. However, the therapeutic effectiveness and safety of LED stimulators are sti…