CELL 155 |
| Soft materials like gels, primary cell wall tissues, surfaces of nanocrystals, etc. offer many challenges for characterization in situ. Here, we report the use of 1 and 2 dimensional High Resolution Magic Angle Spinning (HRMAS) NMR spectroscopy to investigate such materials. As examples, we shall present some recent results on starch gels and knockout Arabidopsis thalliana plants. In the latter, each mutant is deficient in a gene that codes for a putative carbohydrate glycanase. Through comparisons of spectra obtained from juvenile root tissue, it is possible to associate specific chemical changes in the carbohydrate material with the mutated gene. Progress in relating these changes to other physical data will also be presented. Although clearly a work in progress, the preliminary results are encouraging for further development of this approach to complex soft polysaccharide systems. |
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Structure and Properties of Cellulosic Polymers, Assemblies, and Nanocomposites
1:00 PM-4:45 PM, Monday, April 7, 2008 Morial Convention Center -- Rm. R07, Oral
Division of Cellulose & Renewable Materials |