Seoul National University

Gas-driven needle-free dental injection enables tunable and predictable soft-tissue penetration: high-speed kinematic and micro-computed tomography validation

Needle-free jet injectors are a promising alternative to conventional dental needles, particularly for patients with injection-related fear. However, the actuation mechanism can substantially affect jet formation, delivery consistency, and tissue penetration. This study compared...

Complex regional pain syndrome research trends

Background: Complex regional pain syndrome (CRPS) is a chronic pain disorder characterized by disproportionate regional pain and distinct clinical features such as allodynia and hyperalgesia. We conducted a bibliometric analysis to map the global research landscape of CRPS over t...

Stiffness-Dependent Mechanotransductive Signaling in Silicone Implant-Associated Fibrotic Encapsulation

Abstract Fibrotic encapsulation remains a major limitation of silicone-based soft-tissue implants and contributes to capsular contracture. Although biochemical and immunological factors have been extensively investigated, the contribution of implant stiffness to the peri-implant...

Meniscus‐Guided Soft‐Lithographic Assembly of Grid‐Type Molecular Martensite Films for Single‐Crystal‐Like Actuation

ABSTRACT Dynamic molecular martensites exhibit large, reversible deformations and high force densities. However, device integration has been limited by the brittleness and poor formability of single crystals. Here, we report a thin‐film route that translates molecular cooperativi...

Hyaluronic Acid Hydrogel Incorporating Dexpanthenol-Engineered Extracellular Vesicles for Accelerated Wound Closure and Mitigated Secondary Infection Risk

Background: Loss of epithelial integrity leaves the wound bed open to opportunistic bacterial colonization, and the risk of secondary infection persists for as long as the defect remains unclosed. Wound dressings must therefore provide an immediate external barrier while accelera...

TESCLA: A Fully Soft Electromagnetic Linear Actuator With Continuous Bending Enabled by Liquid‐Metal Solenoids

ABSTRACT Linear actuators are widely employed in robots and wearable devices due to their capability of directly generating linear motion. Although soft actuators and flexible linear actuators have been developed to enable effective operation in various configurations, they are s...

The Effect of Central Sensitization on Long‐Term Prognosis and Comorbidity Levels in Temporomandibular Disorders: A Prospective Longitudinal Study

ABSTRACT Background Temporomandibular disorders (TMD) have the potential to progress to a chronic form associated with various comorbidities. Prolonged symptoms may lead to central sensitization (CS), resulting in decreased treatment response and highlighting the need for persona...

Sequential monitoring of structural changes for cointegrated vector autoregressive models

This study introduces a sequential monitoring method for detecting structural changes in cointegrated vector autoregressive (VAR) time series models. We present a novel approach that utilizes the location-scale cumulative sum (LSCUSUM) technique, which incorporates two key CUSUM...

Effect of visual stimulation on quantitative light-touch assessment using the active von Frey filament test

Quantitative assessment of light-touch sensation is essential in the evaluation of peripheral nerve disorders. Although the active von Frey filament test (AvF) provides objective and continuous tactile threshold measurements, the influence of testing conditions on AvF values rema...

Unipolar Barrier Near‐Infrared 2D Photodetectors for 3D Image Sensors

ABSTRACT Photodetectors sensitive to the near‐infrared (NIR) range are of great importance for applications in machine vision, autonomous driving, and three‐dimensional (3D) imaging under low‐light or adverse weather conditions. Recently, two‐dimensional (2D) semiconductors have...

Long-Lifespan Turbostratic Graphene Field Emitters for High-Power Applications

Abstract Cold cathodes offer heater-free, instantly switchable electron sources, but conventional sharp-tip designs often degrade under continuous thermal loads, limiting high-power applications. We overcome this with a freestanding, edge-emitting turbostratic graphene film (GF)....

Prenatal PM2.5 exposure drives epigenetic reprogramming of fetal macrophages linked to atopic dermatitis

Abstract Prenatal environmental exposures are increasingly recognized as contributors to atopic dermatitis (AD), yet the underlying mechanisms remain unclear. Fine particulate matter (PM 2.5 ), a complex mixture of airborne pollutants, has been associated with elevated risk of al...

The Utilization of Dental Services Among Indonesian Youth: A Nationwide Study Based on the Expanded Andersen Behavioral Model

Background The purpose of this study was to examine factors associated with dental service utilization among Indonesian youth using the Expanded Andersen Behavioral Model (EABM). Methods This cross-sectional study assessed data from 3332 people aged 15 to 24 from the 2023 Indones...

Significant impact of threshold adjustments on microbiome characterization following Nanopore sequencing

Abstract Sequencing the full-length 16S rRNA gene is essential for improving the taxonomic resolution of bacterial identification. Long-read Oxford Nanopore Technologies (ONT) sequencing, coupled with its real-time analysis platform EPI2ME, has become increasingly competitive in...

Reflex Charging for Anion‐Derived Solid Electrolyte Interphase Formation

ABSTRACT Lithium (Li) metal offers exceptional energy density but suffers from unstable interphases that lead to dendrite growth and poor reversibility. Because the interphase is established during the earliest stages of operation, controlling its formation is critical for stabil...

Reflex Charging for Anion‐Derived Solid Electrolyte Interphase Formation

ABSTRACT Lithium (Li) metal offers exceptional energy density but suffers from unstable interphases that lead to dendrite growth and poor reversibility. Because the interphase is established during the earliest stages of operation, controlling its formation is critical for stabil...

Desorption-ControlledSelective Lithium Enrichmentfrom Spodumene Leachate Using H2TiO3 Adsorbent

Abstract The increasing demand for lithium has intensified the need for efficient lithium recovery processes. In this study, a selective adsorption–desorption strategy for selective lithium enrichment from spodumene leachate was developed using an H2TiO3 adsorbent. The adsorption...

Combined health risk factors and all-cause and cause-specific mortality in the Korean National Health Examination Baseline cohort

The World Health Organization underscores the importance of maintaining a healthy lifestyle to mitigate premature mortality. Key health risk factors (HRFs) are strongly linked to mortality. However, large-scale cohort studies examining the impact of HRFs on mortality remain scarc...

Iron Oxide Photoanode for Glycerol-Assisted Hydrogen Production at 8.87 mA cm–2

Iron oxide (α-Fe2O3) is an attractive photoanode for photoelectrochemical water splitting because of its abundance, suitable band gap, and stability in water, yet its practical use remains limited by poor charge transport and sluggish water oxidation. Here we show that these limi...

Machine learning-assisted prediction of 5-year mortality in chronic kidney disease: the KoreaN cohort study for Outcome in patients With Chronic Kidney Disease (KNOW-CKD)

Background: Mortality prediction models for patients with non-dialysis chronic kidney disease (CKD) remain limited despite their clinical importance. While machine learning (ML) offers the potential to improve prediction accuracy, its "black-box" nature has hindered clinical adop...