Studies on Xanthan Structure by Scanning Tunnelling Microscopy
Scanning tunnelling microscopy (STM) is a technique for the direct 3D imaging of surface atoms, molecules and biomolecular shapes. The use of the equipment for the imaging of polysaccharides is still in its infancy and techniques have to be established that allow critical evaluation of the images produced by STM. Images of the microbial polysaccharide xanthan using preparation techniques applicable to both the STM and electron microscopy (EM) have been produced, thus enabling comparison of the two techniques.
KeywordsGlycerol Graphite Hydration Carbohydrate Polysaccharide
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