Measuring radial Young’s modulus of DNA by tapping mode AFM

被引：0
|
作者：
LIN Yi
机构：
来源：
ChineseScienceBulletin | 2007年 / 23期
基金：
中国博士后科学基金;
关键词：
DNA; Young’s modulus; elasticity; atomic force microscopy;
D O I：
暂无
中图分类号：
Q523-3 [];
学科分类号：
摘要：
Based on tapping mode AFM imaging, a method was demonstrated to evaluate compression elasticity of single double-stranded DNA (dsDNA) molecules in the force region. With images under ambient conditions, Young’s moduli of dsDNA in compression were calculated. Results demonstrated that Young’s moduli of dsDNA can be simply deduced according to the proposed model. The method can also be used to evaluate the compression elasticity of similar soft nanomaterials.
引用
收藏
页码：3189 / 3192
页数：4
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