Nanometric Scale Biosample Observation Using a Photon Scanning Tunneling Microscope
Nanometric Scale Biosample Observation Using a Photon Scanning Tunneling Microscope
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使用光子扫描隧道显微镜进行纳米级生物样本观察
DOI：
10.1143/jjap.31.2282
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发表时间：
1992
期刊：
影响因子：
--
通讯作者：
A. Ikai
中科院分区：
文献类型：
--
作者：
Shudong Jiang;H. Ohsawa;Kazunobu Yamada;T. Pangaribuan;M. Ohtsu;Kensaku Imai;A. Ikai
利用光纤探针超分辨光子扫描隧道显微镜（PSTM），首次在大气条件下观察到尾径约9 nm的T4噬菌体。制备了锥角为25°~ 100°，最小曲率半径小于10 nm的光纤探针，其角度方差小于0.5°。这种PSTM的正常分辨率被评估为小于1 nm，而受光纤探针曲率半径限制的横向分辨率估计在20 nm以内。
A T4 bacteriophage with a tail diameter of about 9 nm was observed for the first time in an atmospheric condition without a metal film coating, by means of a superresolution photon scanning tunneling microscope (PSTM) using a fiber probe. Fiber probes with cone angles of 25°-100° and their minimum curvature radii less than 10 nm were fabricated andthe angle variance was less than 0.5°. The normal resolution of such a PSTM was evaluated to be less than 1 nm, and the lateral resolution, limited by the curvature radius of the fiber probe, was estimated to be within 20 nm.