Carbon-Nanotube Tip for Highly-Reproducible Imaging of Deoxyribonucleic Acid Helical Turns by Noncontact Atomic Force Microscopy.
Carbon-Nanotube Tip for Highly-Reproducible Imaging of Deoxyribonucleic Acid Helical Turns by Noncontact Atomic Force Microscopy.
复制标题
用于通过非接触原子力显微镜对脱氧核糖核酸螺旋转角进行高度重复成像的碳纳米管尖端。
DOI：
10.1143/jjap.39.l887
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发表时间：
2000
影响因子：
1.5
通讯作者：
M. Ishikawa
中科院分区：
文献类型：
--
作者：
T. Uchihashi;N. Choi;M. Tanigawa;M. Ashino;Y. Sugawara;H. Nishijima;S. Akita;Y. Nakayama;H. Tokumoto;K. Yokoyama;S. Morita;M. Ishikawa
碳纳米管（CNT）被用作非接触式原子力显微镜（NC-AFM）的针尖。在扫描电子显微镜（SEM）室中通过良好控制的程序将CNT尖端附接到Au/Si尖端。具有CNT针尖的NC-AFM产生高度可重复的线性脱氧核糖核酸（DNA）的右旋螺旋转角的图像，间距为3.5 ± 1.0 nm。测得的DNA截面半峰全宽（FWHM）为3.1 ± 0.6nm。
A carbon nanotube (CNT) was used as a tip for a noncontact-mode atomic force microscope (NC-AFM). A CNT tip was attached to an Au/Si tip by a well-controlled procedure in a scanning-electron-microscope (SEM) chamber. The NC-AFM with the CNT tip produced highly reproducible images of right-handed helical turns of linear deoxyribonucleic acid (DNA) with a spacing of 3.5 ±1.0 nm. The full-width at half-maximum (FWHM) of the cross section of DNA measured was 3.1 ±0.6 nm.