title: Study of radial compression elasticity of single xanthan molecules by vibrating scanning polarization force microscopy.
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 approximately 20-100 MPa under loads below 0.4 nN.
authors.affiliation: Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China.
authors.forename: Huabin
authors.initials: H
authors.lastname: Wang
authors.forename: Xingfei
authors.initials: X
authors.lastname: Zhou
authors.forename: Hongjie
authors.initials: H
authors.lastname: An
authors.forename: Jielin
authors.initials: J
authors.lastname: Sun
authors.forename: Yi
authors.initials: Y
authors.lastname: Zhang
authors.forename: Jun
authors.initials: J
authors.lastname: Hu
mesh_terms: D004548:Elasticity; D006108:Graphite / Q000737:chemistry; D018625:Microscopy, Atomic Force; D036103:Nanotechnology; D011135:Polysaccharides, Bacterial / Q000737:chemistry* / Q000648:ultrastructure; D013499:Surface Properties
chemical_list: D011135:Polysaccharides, Bacterial; D006108:Graphite; C002563:xanthan gum