Cell stimulation using direct vibration with magnetic beads and development of a measurement system

为了研究振动刺激对细胞功能表达的影响，研制了一种利用磁珠直接振动的细胞刺激系统。磁珠直径为几微米，附着在细胞壁上。在交变磁场作用下，吸附的磁珠发生振动，并利用新开发的光学系统测量振动幅度。磁珠以451 nm的最大振荡振幅和80 Hz的激发频率振动。

Cell stimulation system using direct viblation with magnetic beads, which has a diameter of several micro meters, attached on the cell wall has been developed to investigate the expression of cell function with the vibration stimuli. The attaced magnetic beads are vibrated with an alternating magnetic field and the vibration amplitude is measured by newly developed optical system. The magnetic beads were vibrated with maximum oscilation amplitude of 451 nm with a excitation frequency of 80 Hz.