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비교적 큰 나노구조 표면에서 박테리아 부착 및 살균 메커니즘
김희경(Hee Kyeong kim),박준기(Jun Gi Park),Suvd Erdene Ganbaatar,서경덕(Kyoung Duck Seo),조영삼(Young-Sam Cho),박현하(Hyun-Ha Park) 대한기계학회 2021 대한기계학회 춘추학술대회 Vol.2021 No.11
Biofilms formed due to the attachment of bacteria to the surface are causing various problems in medical design and fabrication of a generation of bactericidal materials. Recently, mechano-bactericidal using a contact killing mechanism by mimicking the wings of cicada or dragonfly is being studied. Mechano-bactericidal has a mechanism in which the bacterial membrane is destroyed as the bacteria attached to the surface are stretched by the nanostructure. The bactericidal ability of the nanostructure is determined by the spacing, height, geometric structure of the nanostructure. The nanostructures reported so far mimic the wings of cicadas and dragonflies, and have high density and pointed nanostructures. Tear of the bacterial membrane by the nanopillars can induce bacteria to kill. The pointed nanostructures can pierce the bacterial membrane and kill the attached bacteria. However, this mechanism is predicted to kill due to the tearing by stretching of the bacterial membrane by relatively large nanopillars.