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자성나노입자의 표면 흡착에 의한 마이크로캔틸레버의 공진주파수 변화
박미령(Miryeong Park),최현경(Hyunkyung Choi),김삼진(Sam Jin Kim),김철성(Chul Sung Kim),고태준(Taejoon Kouh) 한국자기학회 2018 韓國磁氣學會誌 Vol.28 No.2
In this study, we have considered the physical adsorption of Fe₃O₄ magnetic nanoparticles - having a size of a few tens of nanometers - onto the surface of a microcantilever, and observed the following resonance frequency shift of the microcantilever. The change in the effective mass of the microcantilever depending on the level of the surface adsorption of nanoparticles on the microcantilever has been determined from the observed resonance frequency shift based on a simple mechanical model, leading to the estimation of the number of nanoparticles adsorbed on the microcantilever surface.