Changes in surface stress at the liquid/solid interface measured with a microcantilever

R. Raiteri; H. -J. Butt; M. Grattarola

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Changes in surface stress at the liquid/solid interface measured with a microcantilever

机译：用微悬臂梁测量的液体/固体界面处的表面应力变化

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The bending of microfabricated silicon nitride cantilevers was used to determine surface stress changes at solid-liquid interfaces. The radius of curvature of the bent cantilever is directly proportional to changes in the differential surface stress between its opposite sides. To demonstrate the possibilities and limitations of the technique, cantilevers coated on both sides with gold and densely packed monolayers of different thiols were put in a constant flow of aqueous electrolyte solution and the deflection was measured using a optical lever technique. Changes in the surface stress for the different thiol monolayers due to specific proton adsorption are presented. Possible applications and improvements of this technique are discussed.

机译：微加工的氮化硅悬臂的弯曲用于确定固液界面处的表面应力变化。弯曲的悬臂的曲率半径与其相对两侧之间的表面差分应力的变化成正比。为了证明该技术的可能性和局限性，将两面涂有金的悬臂和密集排列的不同硫醇的单分子层置于恒定的电解质水溶液中，并使用光学杠杆技术测量挠度。由于特定的质子吸附，给出了不同硫醇单层表面应力的变化。讨论了该技术的可能应用和改进。

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来源
《Electrochimica Acta》 |2000年第3期|共7页
作者
R. Raiteri; H. -J. Butt; M. Grattarola;
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正文语种 eng
中图分类电化学工业;物理化学（理论化学）、化学物理学;
关键词
Atomic force microscopy; Surface stress cantilevers; Biosensors; Surface energy of solids;

机译：原子力显微镜;表面应力悬臂;生物传感器;固体表面能;

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1. Changes in surface stress at the liquid/solid interface measured with a microcantilever [J] . R. Raiteri, H. -J. Butt, M. Grattarola Electrochimica Acta . 2000,第2a3期

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3. Probing Liquid–Solid and Vapor–Liquid–Solid Interfaces of Hierarchical Surfaces Using High-Resolution Microscopy [J] . KatherineT. Flynn Bolte, Rajesh Prabhu Balaraman, Kexin Jiao, Langmuir: The ACS Journal of Surfaces and Colloids . 2018,第12期

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Changes in surface stress at the liquid/solid interface measured with a microcantilever

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