Detecting confined fluid behavior by SFA:Past,present,and future

• 作者: Yihui Dong Feng Huo Aatto Laaksonen
• 来源期刊: 绿色能源与环境（英文版）
• 年，卷（期）: 2021,（2）
• 所属期刊栏目: Research highlight
• 页码范围: 167-168
• 页数: 2页
• 语种: 英文

摘要

Since Israelachvili and co-workers in 1970s first developed apparatuses to detect van der Waals forces of molecularly smooth mica surfaces confined down to 1.5 nm,these advanced surface techniques have been vastly explored and extended to detect a variety of intermolecular forces in fluids and biomolecular systems [1].The Surface Forces Apparatus(SFA) is one representative,which has been widely applied in the cutting-edge fields.The most fascinating advantage of SFA is on its capability to detect the force at atomic level,with a sensitivity of ten nN and distance resolution of 1 (A).In detection,the surfaces are imaged by the "fringes of equal chromatic order" (FECO) spectrogram,and the interaction geometry can be determined from the positions and shapes of FECO.