Multimodal CARS microscopy of structured carbohydrate biopolymers
| Autor: | Albert Stolow, Aaron D. Slepkov, Adrian F. Pegoraro, Andrew Ridsdale, Douglas J. Moffatt |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2010 |
| Předmět: |
Microscopy
ocis:(180.4315) Nonlinear microscopy Materials science Nonlinear microscopy Starch Nanotechnology Atomic and Molecular Physics and Optics Light scattering chemistry.chemical_compound symbols.namesake chemistry symbols Cars microscopy Cellulose ocis:(300.6230) Spectroscopy coherent anti-Stokes Raman scattering Raman scattering Biotechnology ocis:(160.1435) Biomaterials |
| Zdroj: | Biomedical Optics Express |
| ISSN: | 2156-7085 |
| Popis: | We demonstrate the utility of multimodal coherent anti-Stokes Raman scattering (CARS) microscopy for the study of structured condensed carbohydrate systems. Simultaneous second-harmonic generation (SHG) and spectrally-scanned CARS microscopy was used to elucidate structure, alignment, and density in cellulose cotton fibers and in starch grains undergoing rapid heat-moisture swelling. Our results suggest that CARS response of the O-H stretch region (3000 cm(-1)-3400 cm(-1)), together with the commonly-measured C-H stretch (2750 cm(-1)-2970 cm(-1)) and SHG provide potentially important structural information and contrast in these materials. |
| Databáze: | OpenAIRE |
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