Magnetic Tweezers with Magnetic Thin Films

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概要

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• Magnetic tweezers consisting of a $75\times 0.65\times 0.3$ μm3 silicon oxide cantilever and a $72\times 13\times 0.3$ μm3 silicon oxide plate deposited with magnetic thin films are fabricated and placed under various magnetic fields to observe their flexure. The principle of the magnetic tweezers is magnetic torque on condition that the high shape magnetic anisotropy is designed and a highly sensitive microcantilever is fabricated. When the magnetic tweezers are placed under a horizontal magnetic field, they will close under a large magnetic field; when the magnetic tweezers are placed under a vertical magnetic field, they will open under a large magnetic field. On the other hand, the directions of magnetic field can control the distance between the magnetic tweezers. Therefore, magnetic tweezers can be expected as magnetic components in microelectromechanical systems (MEMS) and applied to grabbing cells in biotechniques.

• 2011-03-25

著者

• Hsieh Yi-Ping

  Department of Power Mechanical Engineering, National Tsing Hua University, Hsinchu 300, Taiwan

関連論文

• Magnetic Tweezers with Magnetic Thin Films
• Deflections of magnetic actuators with different widths of microcantilevers
• Magnetization reversal in different magnetic thin films studied using a magnetic actuator
• Deflections of Magnetic Actuator under Different Directions of External Magnetic Field
• Planar Actuation Hysteresis and Magnetic Switching in Single-Domain Cantilever Beam

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