UOS News
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- The research team led by Professor Young Jun CHANG of the Department of Physics at the University of Seoul maximizes catalytic activity through electrochemical surface modulation - Oxygen evolution reaction performance significantly enhanced using iridium chalcogenide thin films The University of Seoul announced in January 2026 that the research team led by Professor Young Jun CHANG of the Department of Physics successfully maximized the catalytic activity of the oxygen evolution reaction (OER) by precisely controlling the surface oxidation state of thin films of iridium telluride (IrTe2₂), a two-dimensional transition-metal chalcogenide. This research was conducted as a collaborative study with Pohang Accelerator Laboratory, Chung-Ang University, the National NanoFab Center, and Sweden’s MAX IV synchrotron light source facility. The results were published in the January 2026 issue of ACS Catalysis (Impact Factor: 13.1), a world-renowned academic journal in the field of catalysis. In this study, a method was proposed to control the formation of active intermediates (Ir–OH, Ir–OO, Te–OH) and reaction pathways through electrochemical oxidation modulation of high-quality two-dimensional iridium telluride thin films synthesized using a vacuum thin-film deposition system. In particular, the study id
대외협력과 14 2026-04-01
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– MHz-speed long-range wireless optical communication enabled by an ultra-thin, ultra-flexible near-infrared sensor – Published in Nature Communications, demonstrating a technological advance in ultra-thin organic photodetectors A research team led by Professor Hyeok Kim (School of Electrical and Computer Engineering; Department of Intelligent Semiconductor Engineering) at the University of Seoul has developed a 3μm ultra-thin, ultra-flexible near-infrared optical sensor, presenting a strategy for multi-angle, long-range wireless optical communication that overcomes the limitations of conventional organic photodetectors. This technology enables the uninterrupted reception of invisible light signals from distances of up to 100 m using a single thin, skin-attachable film. Even when applied to finely curved skin surfaces—such as the subtle wrinkles of a fingertip—the sensor can reliably capture optical signals without fluctuation, regardless of the angle of incidence. Consequently, it opens up new possibilities for next-generation wearable communication and healthcare technologies. The newly developed optical sensor achieves high-speed and high-sensitivity performance, stably receiving data at speeds of up to 1 MHz across a wide range of incident angles and detecting optically modulated audio signals even a
대외협력과 176 2026-03-09
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- Accelerate commercialization by controlling quantum dot crystal arrays and enhancing charge transport with conjugated polymer ligands A research team led by Professor Min Kim of the Department of Chemical Engineering at the University of Seoul (Lead authors: Tae Oh Yoon, Shabaz Alam, and Dohun Baek), in collaboration with Professor Jaeyoung Jang of Hanyang University and Professor Jaewon Lee’s research team at Chungnam National University. The collaborative research paper, titled “Conjugated Polymer-Driven Compact Crystal Packing and Efficient Charge Transport in Perovskite Quantum Dot Solar Cells,” was published as a frontispiece in Small, leading international journal in nanoscience and materials science (Impact Factor 12.1, top 8.7% in JCR). The joint research team designed a novel conjugated polymer ligand with an ethylene glycol side chain, implementing a strategy that enables precise control of quantum dot crystal arrays through polymer backbone bonding while strongly interacting with the perovskite quantum dot (PQD) surface. This demonstrates that the conjugated polymer effectively stabilizes defects on the quantum dot surface while simultaneously enhancing the dense arrangement and electron coupling between quantum dots, thereby significantly improving charge transport pathways. Unlike conventio
대외협력과 233 2026-01-15
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- Only 7 of 155 universities nationwide earned a Grade A in recognition of both research support capabilities and systematic approaches The University of Seoul has been rated a Grade A institution in the 2025 Research Support System Evaluation conducted by the Ministry of Science and ICT (MSIT) and the Korea Institute of Science and Technology Evaluation and Planning (KISTEP). This outcome is a significant achievement that is particularly notable because the University of Seoul has achieved a Grade A for the second consecutive time, once again demonstrating the excellence of its research support system. The Research Support System Evaluation is a comprehensive assessment conducted biennially by the MSIT and KISTEP upon universities that voluntarily apply. Its purpose is to strengthen the systematic and professional nature of university research support systems and ultimately establish a foundation for enhancing research outcomes. The most recent evaluation was conducted based on performance in the period March 2023 to February 2024. One hundred and fifty-five universities with research support functions participated in the assessment, but only seven achieved a Grade A. Among these top-tier universities was the University of Seoul, which has been recognized for its outstanding performance in overall research suppo
대외협력과 243 2025-12-12
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- "Climate change is a shared crisis for humanity" – Emphasizing the role of urban policy and international solidarity - Over 300 participants, including overseas civil servant trainees; expanding the urban cooperation network The University of Seoul announced on November 22nd that it held a special lecture delivered by former United Nations (UN) Secretary-General Ban Ki-moon on Climate Change and the International Community's Response at the Grand Conference Hall of the Natural Sciences Building on Friday, November 21st, 2025, to commemorate the 100th Urban Infrastructure Forum. The lecture was delivered in a hybrid online–offline format and was attended by approximately 300 participants, including civil servants from developing countries, who engaged in training programs, alongside undergraduate and graduate students. This event was co-hosted by the University of Seoul’s International School of Urban Sciences (Dean: Shin Lee) and the University of Seoul Environmental, Social, and Governance Committee. The Urban Infrastructure Forum has been held monthly since 2013 and is thus a flagship academic event of the University of Seoul. It addresses key issues in urban development, the environment, and international cooperation, thereby providing a platform for domestic and international experts and practitioners
대외협력과 252 2025-12-12
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- This research introduces a new approach to suppressing aging by stabilizing chromatin structure. The research team, led by Professor Hyunsung Park from the Department of Life Sciences at the University of Seoul, reported an epigenetic mechanism in which a hypoxic microenvironment delays cellular aging. These findings appeared in Nucleic Acids Research (2024 Impact Factor 13.1, top 4.06% in JCR field). The first author of this paper is Dr. Soojeong Chang, who earned her Ph.D. from the Department of Life Sciences at the University of Seoul, and the corresponding author is Professor Hyunsung Park. It has been observed that cell division is suppressed and cellular aging is delayed in low-oxygen environments, which are often found within tumor tissues or bone marrow; however, the underlying molecular mechanism has remained unclear. In this study, the research team found that histone methylation increases in hypoxic environments. This increase inhibits histone cleavage by Cathepsin L, which prevents the collapse of higher-order chromatin structures and suppresses aging. In collaboration with Professor Sang-Won Lee's team at Korea University, the team conducted top-down proteomics analysis. This led to the first identification of new cleavage sites on H2B and H4 that were previously unknown in the Raf-induced agi
대외협력과 260 2025-12-12
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- The team developed a novel data imputation model, “U-VAE,” which accounts for missing value uncertainty The University of Seoul announced that a paper written by the research team led by Professor Jong-June Jeon from the Department of Statistics and Data Science has been accepted for the Main Technical Track of the Association for the Advancement of Artificial Intelligence (AAAI) 2026, the premier international conference on AI. AAAI is a globally authoritative academic conference on AI, registered as a BK Excellent International Academic Conference (recognized IF 4.0). This year’s conference saw high competitiveness, with approximately 31,000 papers submitted and only 4,167 accepted. The 2026 AAAI Conference is scheduled to be held at the Singapore Expo from January 20 to January 27, 2026. The accepted paper, “Impute Missing Entries with Uncertainty,” presents a novel, more sophisticated approach to address the problem of missing data, which inevitably occurs during actual data collection. Missing data have various causes, such as non-response of participants, omission of medical records, and measurement errors. They are not merely blank spaces, but fundamental sources of uncertainty that undermine the reliability of statistical analysis. While various single and multiple imputation techniques have b
대외협력과 606 2025-12-10
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- This research challenges the conventional understanding of inverse probability weighting (IPS) and newly identifies the cause of performance improvements in recommended models. The University of Seoul announced that a paper by Professor Jong-June Jeon’s research team, titled "Revisiting IPS in Recommendation Models: Unveiling Its Impact on Model Performance," has been accepted for presentation at WSDM (Web Search and Data Mining) 2026, one of the world's most prestigious international conferences in data mining and machine learning. WSDM, organized by the Association for Computing Machinery (ACM), is one of the leading international conferences in web search, recommendation, and data mining. It presents the latest research in search and data mining across the web and social web. Recognized as a top-tier conference by both the National Research Foundation of Korea and the Korean Institute of Information Science and Technology, it receives thousands of submissions each year and maintains a highly competitive acceptance rate of about 15–20%. ▶ The Selection Bias Problem in Recommender Systems and the Proposed Methodology The accepted paper offers a new perspective on the effectiveness of IPS, which is widely used to address selection bias in recommender systems. The research team showed theoretically that, w
대외협력과 299 2025-12-10
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- Mass production strategy for next-generation stem cell-derived extracellular vesicle (EV)-based therapeutics expected to enable applications in immunotherapy, vaccines, and other fields A research paper titled “GENRISE-Induced Superior Extracellular Vesicles for Scalable Therapeutic Cargo Delivery,” jointly written by Professor Jong Bum Lee’s research team (first authors: Hyejin Kim and Sunghyun Moon) from the Department of Chemical Engineering at the University of Seoul and the research team of Professors Peter C W Lee and Jun-O Jin from the College of Medicine of the University of Ulsan (Asan Medical Center), has been accepted for publication in the prestigious journal Science Advances. Science Advances, published by the American Association for the Advancement of Science (AAAS), is an open-access, multidisciplinary journal within the Science family. It is a top-tier journal with stringent review standards, accepting only about 10% of the approximately 20,000 papers submitted annually (5-year impact factor: 14.1). The joint research team designed and engineered a novel mRNA granular condensate, “GENRISE,” to function as a “translation sponge” and a temporary intracellular vesicle. The research elucidated the principle whereby GENRISE induces localized translation activity and reversible ER stress s
대외협력과 195 2025-12-10
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- Development of next-generation neural interface technology, integrating electrophysiology and deep brain imaging - This research was published in Advanced Functional Materials, an internationally renowned journal. The University of Seoul announced that a research team led by Professor Dong-Wook Park from the School of Electrical and Computer Engineering, in collaboration with the University of Wisconsin-Madison and Inscopix, has developed BioCLEAR, a transparent neural electrode system that can simultaneously measure electrical and optical signals from deep-brain neurons. The research findings were published in the paper titled "Transparent Inorganic–Organic Bilayer Neural Electrode Array and Integration to Miniscope System for In Vivo Calcium Imaging and Electrophysiology" on October 23 in Advanced Functional Materials, an internationally renowned journal (IF 19, top 4.5% in JCR). BioCLEAR is recognized as a multimodal neural measurement technology that can perform both electrophysiology and calcium imaging on a single platform. BioCLEAR uses a hybrid organic-inorganic structure that combines a silver nanowire (AgNW)–based inorganic conductor with a doped PEDOT:PSS organic polymer layer. This structure addresses the opacity and imaging interference issues of conventional metal electrodes while providing hig
대외협력과 185 2025-11-26
