Study of Radial Compression Elasticity of Single Xanthan Molecules by Vibrating Scanning Polarization Force Microscopy

Authors: Wang, Huabin; Zhou, Xingfei; An, Hongjie; Sun, Jielin; Zhang, Yi; Hu, Jun

Source: Journal of Nanoscience and Nanotechnology, Volume 8, Number 8, August 2008 , pp. 3864-3867(4)

Publisher: American Scientific Publishers

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Abstract:

Individual xanthan molecules were prepared on highly oriented pyrolytic graphite surface with a modified spin-casting technique. Then the radial compression elasticity of single xanthan molecules was investigated by vibrating scanning polarization force microscopy. The effective elastic moduli of xanthan molecules are estimated to be ∼20–100 MPa under loads below 0.4 nN.
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