Title
Direct Characterization Of Radial Modulus Of Dna Nanotube By Afm Nanoindentation
Abstract
DNA origami in a nanotube configuration is increasingly attractive for the creation of new structural systems that can confine or encapsulate a variety of nanoscale materials, but utilization as a functional mechanical component depends on understanding crucial properties such as the radial mechanical property that has rarely been studied. Here, we report the direct characterization of the radial modulus of a DNA nanotube by AFM nanoindentation. A corrected Hertz model was employed to interpret the measured force versus distance data. The biphasic material properties of the DNA nanotube were characterized for the first time and indicate a radial electrostatic modulus of about 10 +/- 3 MPa in the small region where force was applied, and a radial elastic modulus of about 63 +/- 20 MPa in a larger region.
Year
Venue
Keywords
2015
2015 IEEE 10TH INTERNATIONAL CONFERENCE ON NANO/MICRO ENGINEERED AND MOLECULAR SYSTEMS (NEMS)
DNA origami, radial modulus, AFM nanoindentation, Hertz model
Field
DocType
ISSN
Elastic modulus,Composite material,Nanotube,Nanoscopic scale,DNA origami,Modulus,Nanoindentation,Materials science,Material properties,A-DNA
Conference
2474-3747
Citations 
PageRank 
References 
0
0.34
0
Authors
7
Name
Order
Citations
PageRank
Zhipeng Ma100.34
Young Joo Kim2465.25
Seongsu Park300.34
Yoshikazu Hirai402.37
Toshiyuki Tsuchiya512.65
Do-Nyum Kim600.34
Osamu Tabata71413.67