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Viscocapillary Response of Gas Bubbles Probed by Thermal Noise Atomic Force Measurement
Langmuir ( IF 3.7 ) Pub Date : 2018-01-11 00:00:00 , DOI: 10.1021/acs.langmuir.7b03857 Yuliang Wang 1 , Binglin Zeng 1 , Hadush Tedros Alem 1 , Zaicheng Zhang 2 , Elisabeth Charlaix 3 , Abdelhamid Maali 2
Langmuir ( IF 3.7 ) Pub Date : 2018-01-11 00:00:00 , DOI: 10.1021/acs.langmuir.7b03857 Yuliang Wang 1 , Binglin Zeng 1 , Hadush Tedros Alem 1 , Zaicheng Zhang 2 , Elisabeth Charlaix 3 , Abdelhamid Maali 2
Affiliation
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We present thermal noise measurements of a vibrating sphere close to microsized air bubbles in water with an atomic force microscope. The sphere was glued at the end of a cantilever with a resonance frequency of few kHz. The subangstrom thermal motion of the microsphere reveals an elastohydrodynamic coupling between the sphere and the air bubble. The results are in perfect agreement with a model incorporating macroscopic capillarity and fluid flow on the bubble surface with full slip boundary conditions.
中文翻译：
通过热噪声原子力测量探测的气泡的粘膜毛细血管响应
我们用原子力显微镜对接近水中微小气泡的振动球的热噪声进行了测量。球体被粘贴在悬臂末端，共振频率为几千赫兹。微球的亚埃热运动揭示了球与气泡之间的弹性流体动力耦合。该结果与包含宏观毛细作用和具有完整滑移边界条件的气泡表面上的流体流动的模型完全吻合。
更新日期：2018-01-11
中文翻译：
通过热噪声原子力测量探测的气泡的粘膜毛细血管响应
我们用原子力显微镜对接近水中微小气泡的振动球的热噪声进行了测量。球体被粘贴在悬臂末端，共振频率为几千赫兹。微球的亚埃热运动揭示了球与气泡之间的弹性流体动力耦合。该结果与包含宏观毛细作用和具有完整滑移边界条件的气泡表面上的流体流动的模型完全吻合。
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