We highlight the unique attributes of sum-frequency spectroscopy by reviewing two case studies performed in our laboratory to investigate the orientation of macromolecules at interfaces. The first case study illustrates how spectral information of sum-frequency spectroscopy can be used to probe the orientation of monolayers and also independently probe the anisotropy of a metal interface, which influences the orientation of the monolayers, buried below a monolayer. The second case study illustrates how sum-frequency spectroscopy can be used to obtain spatial information of the uniformity of distribution and the density of coverage of synthetic proteins that are deposited as thin films.


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    Title :

    Sum-frequency spectroscopic investigation of the alignment of liquid crystals on self-assembled monolayers and imaging of endgrafted alpha-helical polypeptide films


    Contributors:
    Knoesen, A. (author) / Pakalnis, S. (author) / Follonier, S. (author) / Miller, W. (author) / Abbott, N. (author) / Lee, N. (author) / Frank, C. (author)


    Publication date :

    2001-01-01


    Size :

    180174 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English