From Disease Diagnosis to Air Quality Monitoring with MEMS Sensors
Professor Lim Si-hyeong, Department of Mechanical Engineering
Field
Engineering
Project Leading Organization
Ministry of Science and ICT, Ministry of Trade, Industry and Energy
Date Hit
Solving Real-Life Problems with Precision Engineering Technology
Professor Lim Si-hyeong of Kookmin University's Department of Mechanical Engineering conducts research on designing and manufacturing various sensors and functional surfaces based on micro- and nano-scale precision machinery and electronic engineering technologies. His research lab aims to solve real-life problems related to health, safety, and the environment, striving to contribute to society through the development of practical and effective technologies.
Research on MEMS-Based Miniaturized Sensors and Functional Surfaces
Professor Lim's main research area is the development of miniaturized sensor systems utilizing Micro-Electro-Mechanical Systems (MEMS) technology. Sensors for blood flow measurement and harmful gas analysis devices are designed based on micro/nano technology to precisely analyze biological and environmental information.
Additionally, research on imparting functionalities to surfaces is actively underway. Surfaces with properties such as superhydrophobicity, superhydrophilicity, and superoleophobicity are being developed. In particular, anti-icing surface technology to address winter ice and snow problems is gaining attention for protecting industrial facilities and ensuring safety.
Gas Analysis Systems and Energy-Free Anti-Icing Technology
Professor Lim's research team is currently focusing on two main projects.
First, a system developed as a 2 cm x 2 cm hybrid chip, which integrates Gas Chromatography (GC) technology with miniaturized MEMS sensors, can concentrate and analyze gases, making it applicable for respiratory disease diagnosis or indoor air quality monitoring.
Second, they are developing an anti-icing surface that operates solely on solar energy without external electricity. This technology is evaluated as an effective alternative for preventing winter traffic accidents and protecting industrial facilities by naturally removing snow and ice.
The Intersection of Industrial Sites and Technology
Professor Lim states, “There is a need for technology that can solve various problems with simple operation, without complex equipment,” hoping his research will become solutions directly applicable in actual industries. Miniaturized high-sensitivity sensors and functional surfaces hold diverse application possibilities and are expected to have a significant impact in various fields such as environment, healthcare, and safety.
Research Must Start from the Perspective of Practical Application
Professor Lim advises his students: “Research begins not so much with grandiose ideas, but with examining everyday technologies and considering how they can be improved. There is infinite room to apply existing technologies in new ways.”
Strengths of Kookmin University's Department of Mechanical Engineering
Kookmin University's Department of Mechanical Engineering has a curriculum that provides both in-depth major education and practice-oriented experience. Students can achieve a balance between theory and practice through lab activities, industry-linked projects, and academic clubs.
Professor Lim Si-hyeong's research contributes to solving various industrial problems through the development of MEMS sensor technology and functional surfaces, and Kookmin University's Department of Mechanical Engineering actively supports such advanced research so it can positively impact society and industry.
