Chung-Ang University

Multiplexed intravascular molecular imaging using dual-channel near-infrared fluorescence integrated with optical coherence tomography

Abstract Accurate characterization of high-risk atherosclerotic plaques requires both structural and molecular information. While integrated optical coherence tomography (OCT)/near-infrared fluorescence (NIRF) imaging enables simultaneous assessment of plaque morphology and biolo...

Improving a Maintenance Priority Index for Sustainable Urban Railway Track Management Using Facility Performance Evaluation Data

Sustainable urban rail management requires directing limited budgets to sections where maintenance can most effectively extend asset life. Existing track performance evaluation systems guide maintenance priorities, but cost-effectiveness-based indices do not explicitly account fo...

Microfluidic Focusing of Heterogeneous Bacterial Immunocomplexes for Reproducible SERS Immunoassays

Abstract Magnetic bead-based surface-enhanced Raman scattering (SERS) immunoassays enable sensitive and multiplexed bacterial detection. However, bacterial targets form heterogeneous magnetic bead–bacterium–SERS nanotag immunocomplexes that vary in size, morphology, and nanotag l...

Oliceridine for acute pain management: pharmacology, clinical efficacy, safety, and future perspectives: a narrative review

Opioids are a cornerstone in the management of moderate-to-severe acute pain; however, their clinical utility is limited by well-recognized challenges, including respiratory depression, gastrointestinal (GI) dysfunction, and the potential for misuse and abuse. Oliceridine is a no...

A 500-mA Dual-Mode NMOS Output-Capacitorless LDO with a High-Frequency Transient Detection Technique for 5-ns Edge Times

Modern power management integrated circuits (PMICs) for advanced systems-on-chip (SoCs) heavily rely on output-capacitorless (OCL) low-dropout (LDO) regulators to minimize printed circuit board (PCB) footprint and cost. However, achieving rapid transient responses during severe l...

Biofilm‐Mediated Persistence of Salmonella in Poultry Processing: A Comprehensive Review of Isolate Heterogeneity, Stress Adaptation, and Antimicrobial Resistance

ABSTRACT Salmonella enterica remains a major foodborne pathogen in poultry‐processing environments, where its persistence is largely attributed to biofilm formation on food‐contact and non‐food‐contact surfaces. Despite extensive research on Salmonella control, persistent contami...

Dry Mask Transfer Lithography for High-Resolution Patterning of Nanomaterials and Molecular Interfaces on Arbitrary Substrates

This study introduces dry mask transfer lithography as a versatile microfabrication strategy that integrates the patterning resolution of photolithography with the substrate adaptability of soft lithography. In this method, a photoresist mask is first patterned on an elastomeric...

Ratio-optimized NiCo scaffolding integration with biomass-derived carbon for efficient lithium-ion battery performance

Biomass-derived carbon-supported transition-metal hydroxides are promising anode materials for high-performance lithium-ion batteries (LIBs). Optimizing the morphology and transition-metal molar ratio of layered double hydroxide (LDH) enhances sustainability, redox activity, and...

Application of Routine Activity Theory to the Context of Cyberbullying in Korean Schools: Testing Multi-Year Consistency Between Groups

Although cyberbullying victims and perpetrators often overlap, few studies tested the temporal stability of Routine Activity Theory (RAT) models across victim, perpetrator, and overlap groups. Using three waves of nationwide South Korean data, this study estimated group-specific...

Integrated Strategy for Sustainable Outdoor Photo-Fermentative Biohydrogen Production: Sequential Optimization, Repeated-Batch Operation, Modular Bioreactor Simulation, and Biomass Valorization

This study developed an integrated strategy for outdoor photo-fermentative biohydrogen production by Rhodopseudomonas pentothenatexigens KKU-SN1/1 through low-cost medium optimization, repeated-batch operation, modular bioreactor simulation, and biomass valorization. A sequential...

Effects of speech-enabled LLM-based chatbots on L2 learning outcomes and affective domains: a multilevel meta-analysis

Abstract Recent developments in natural language processing and automatic speech recognition have significantly advanced chatbot communication using the voice mode, establishing these tools as viable resources for L2 speaking practice. More recently, the L2 chatbot domain has lev...

Health literacy and combined adherence to aerobic and muscle-strengthening physical activity guidelines among Korean adults: findings from the 2023 Korea National Health and Nutrition Examination Survey

Regular physical activity is essential for preventing noncommunicable diseases; however, combined adherence to aerobic and muscle-strengthening physical activity guidelines remains low. Although health literacy may influence individuals’ ability to understand and implement recomm...

Temporal regulation of activin, follistatin, and growth differentiation factor 15 in the liver and circulation during high-fat diet–induced fatty liver disease

Metabolic dysfunction-associated steatotic liver disease (MASLD) develops over time, yet most hepatokine studies are cross-sectional.We investigated the temporal regulation of the activin-follistatin axis and growth differentiation factor 15 (GDF15) in high-fat diet (HFD)-induced...

Paired cerebrospinal fluid metabolomic changes across repeated anodal transcranial direct current stimulation in Parkinson’s disease: an exploratory within-subject study

Transcranial direct current stimulation (tDCS) has been investigated as an adjunctive intervention for Parkinson’s disease (PD), but its biochemical correlates in the human central nervous system remain poorly characterized. We examined participant-level cerebrospinal fluid (CSF)...

Health literacy and metabolic syndrome in Korean adults: a nationwide cross-sectional analysis of KNHANES 2023–2024

Health literacy (HL) is a social determinant of health, yet its independent, population-level association with metabolic syndrome (MetS) remains unclear, particularly in Asian populations. Using data from the first Korea National Health and Nutrition Examination Survey cycles to...

Colloidally Stable P-Type Quantum Dot Ink with an Atomic Layer Deposition Interlayer for High-Detectivity Photodetectors

Solution-processed quantum dot (QD) photodetectors commonly rely on solid-state ligand exchange (SSLE) for the fabrication of conductive films; however, severe volume shrinkage, which induces stress throughout the QD film and generates structural defects and trap states, causes a...

Cellulose-Based Flexible Resistive Random-Access Memory Devices for Biodegradable Electronics

Abstract Excessive dependence on electronic gadgets in our daily life has led to a rapid increase in electronic waste (e-waste), causing significant harm to the environment and ecology. Cellulose-based biodegradable substrates, along with high-k cyanoethyl cellulose as the active...

Cross-regulation of iron and phosphate homeostasis by Fep1 and Pho7 in fission yeast

ABSTRACT Iron and phosphate are essential micronutrients with partially interconnected homeostatic control; however, the underlying transcriptional mechanisms that integrate these signals in the fission yeast Schizosaccharomyces pombe remain unclear. Fep1 (GATA-type repressor) is...

Stereotactic body radiation therapy for hepatocellular carcinoma: 2026 expert consensus-based practical recommendation of the Korean Liver Cancer Association

Stereotactic body radiation therapy (SBRT) is a noninvasive, high-precision radiation technique that delivers a high dose to the tumor in a limited number of fractions, typically five or fewer, and is increasingly used as a curative-intent option for hepatocellular carcinoma (HCC...

Dual-Layer Microencapsulated Phase Change Material Composite with Enthalpy-Active Shell for Thermal Absorption and Directional Heat Management

Abstract Localized heat accumulation in electronic devices degrades performance, safety, and cycle life. Phase change materials (PCMs) have been widely investigated for passive thermal regulation; however, conventional core–shell encapsulated PCMs often exhibit limited effective...