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포스텍 국가연구소 K-BIGHEART에서 Michigan Technological University의 최진우 교수님을 모시고 특별 초청 강연을 개최합니다.

실험실의 한계를 넘어 현장 수질 모니터링의 패러다임을 바꿀 초소형 LED 형광 센싱과 QCM(수정 진동자 마이크로 밸런스) 기술의 최신 성과를 소개합니다.

환경 분석과 전자공학의 융합이 만들어낸 혁신적인 센서 플랫폼의 미래를 직접 확인하시기 바랍니다.

 

강연자: 최진우 교수 (Michigan Technological University)

주제: Portable Sensing Systems for Environmental Water Monitoring Applications

일시: 2026년 5월 6일 (수) 16:00 ~ 17:00

장소: 체인지업그라운드 미디어홀

대상: 포스텍 학부생, 대학원생 및 교직원 등 관심 있는 구성원 누구나
강의언어: 영어

참가 등록: 포스터 하단 QR코드 스캔 또는 등록링크 바로가기 https://forms.gle/4LCZpSANSFdGX9fM8 
강연 문의: 글로벌 헬스케어 의공학 연구소 (k-bigheart@postech.ac.kr)

[POSTECH K-BIGHEART] International Scholar Lecture

Jin W. Choi
Michigan Technological University

▷Date & Time: May 6th, 16:00 PM~17:00 PM
▷Venue: Media Hall, ChangeUp Ground
▷Topic: Portable Sensing Systems for Environmental Water Monitoring Applications
▷Language: English
▷Registration: https://forms.gle/4LCZpSANSFdGX9fM8 
▷Abstract
The presentation will introduce two recently developed portable sensing systems for environmental water monitoring: a fluorescent sensing platform and a resonance-based quartz crystal microbalance (QCM) system.

The first system employs light-emitting diodes (LEDs), which offer compact size, low cost, and easy integration with portable electronics. LED-based optical sensing provides practical on-site analytical capabilities comparable to benchtop instruments. The goal of this platform is to selectively quantify two species, microalgae and cyanobacteria, in environmental samples. The system uses multiple LEDs at distinct wavelengths and a silicon photomultiplier to capture species-specific fluorescence responses. A pattern-recognition algorithm processes this data to achieve selective and reliable quantification.

The second system is a fully customizable, miniaturized, battery-operated QCM platform designed to bring laboratory-grade resonance sensing into field environments. Traditional QCM instruments are largely confined to laboratory use, creating a need for portable systems for in situ detection. The presented device uses a phase-locked loop (PLL)-based measurement circuit to detect frequency shifts associated with volatile organic compounds (VOCs) in water samples, offering performance comparable to conventional benchtop equipment.

The presentation will conclude with an overview of additional sensor research conducted in the presenter’s group at Michigan Technological University.
presentation will introduce two recently developed portable sensing systems for environmental water monitoring: a fluorescent sensing platform and a resonance-based quartz crystal microbalance (QCM) system.