[BK세미나] 8/14(금) 김종성 교수(가천대학교) "Biological Applications of Nano-materials"

기계공학부 구성원들의 많은 관심과 참여 부탁드립니다.

▣ 주 제: Biological Applications of Nano-materials

▣ 연 사: 김종성 교수

▣ 소 속: 가천대학교 화공생명배터리공학부

▣ 일 시: 2026. 8. 14.(금) 16:30

▣ 장 소: 제4공학관 D603호

▣ 초 청: 정효일 교수

▣ 초 록

Nanomaterials are substances ranging in size from 1 to 100 nanometers that possess properties not found in conventional bulk materials due to their large surface area and quantum effects. Representative biological applications utilizing these characteristics include drug and gene delivery systems, biosensors for detecting specific proteins or biomarkers, bioimaging, cell culture supports, and biocompatible materials. In this study, carbon quantum dots were synthesized using hydrothermal synthesis to detect neurotransmitters such as dopamine and GABA based on changes in their fluorescence. Additionally, conductive composites were synthesized from metal-organic frameworks and MXenes, followed by the detection of dopamine using electrochemical methods. Multi-color imaging of cells was achieved by fabricating shape-specific carbon quantum dots, and a GelMA-CQD hydrogel was prepared that demonstrated a very high wound healing effect. CQDs specifically attack mitochondria by excess accumulation, altering the metabolism, inhibiting branching patern, imbalanced Bax/Bcl-2 homeostasis, and ultimately generating oxidative stress levels, leading to cell death in cancer cells in vitro.