Browsing by Author "Cheng, CH"

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    Bio-molecule adsorption studied using micro-beam photoemission spectroscopy
    (Australian Institute of Physics, 2005-01-31) Stampfl, APJ; Cheng, CH; Wang, SC; Huang, ML; Klauser, R
    The idea that some functioning bio-surfaces may be built-up using dry (in-vacuum) techniques is interesting because of the compatibility with existing dry-fabrication technologies and that completely novel bio-surfaces not seen in nature may be created. Adsorption chemistry and surface bonding of simple bio-molecules at metal and semiconductor surfaces is probed using synchrotron-based photo-emission techniques. Cysteine, for example, appears to adsorb intact onto Pt{111} in its zwitterionic form. Other examples of in-situ amino-acid and peptide deposition onto metal surfaces are given with a discussion on surface damage due to radiation exposure. © 2005 Australian Institute of Physics