X-ray scattering and powder diffraction (commonly know as SAXS and XRD) has been long used for characterizing cellulose structures in plants. Generally speaking, the data at wide scattering angles correspond to the crystal form in the cellulose fibrils, while the small-angle data reveal the organization of fibrils. With the unprecedented source brightness achieved at the new synchrotrons and the emergence of new types of x-ray optics, it has become routine to achieve x-ray beam sizes of a few microns or smaller. Together with advances in detector technology, It is therefore possible to perform scattering measurements in a spatially resolved manner, to probe the cellulose structure locally, and to use the information extracted from the scattering data as a contrast mechanism for imaging. At the Life Science X-ray Scattering (LiX) beamline at NSLS-II, we have been developing instrumentation and software for these experiments. We will report our progress, with examples from user research.

Structural characterization of cellulose in plant tissues using X-ray microbeam scattering and scanning imaging

Macromolecular Chemistry: The Second Century

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ACS Spring 2020 National Meeting & Expo

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.