声穿孔
剪应力
材料科学
法国号角
剪切(地质)
压力(语言学)
声学
核磁共振
生物医学工程
物理
医学
复合材料
超声波
语言学
哲学
微气泡
作者
Junru Wu,Joel Ross,Jen‐Fu Chiu
出处
期刊:Journal of the Acoustical Society of America
[Acoustical Society of America]
日期:2002-03-01
卷期号:111 (3): 1460-1464
被引量:139
摘要
Reparable sonoporation was observed in Jurkat lymphocytes in suspension exposed to a vibrating Mason horn tuned to 21.4 KHz. The diameter of the horn tip was 400 microm and its transverse displacement amplitude was 7.8 microm. It was found that the shear stress associated with microstreaming surrounding the Mason-horn tip was the primary reason for the cell reparable sonoporation. The threshold shear stress was determined to be 12 +/- 4 Pa for exposure time up to 7 min. It was also found that the shorter the exposure time, the greater the threshold.
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