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  • Title: Nanoscale reduction in surface friction of polymer surfaces modified with Sc3 hydrophobin from Schizophyllum commune.
    Author: Misra R, Li J, Cannon GC, Morgan SE.
    Journal: Biomacromolecules; 2006 May; 7(5):1463-70. PubMed ID: 16677027.
    Abstract:
    Hydrophobins are amphipathic self-assembling proteins secreted by filamentous fungi that exhibit remarkable ability to modify synthetic surfaces. Thin coatings of Sc3 hydrophobin isolated from the wood-rotting fungus Schizophyllum commune were prepared via spin coating and adsorption techniques onto polymeric surfaces. Surface morphology and nanotribological characteristics of the films were evaluated using lateral force microscopy (LFM) and nanoindentation techniques. This paper reports the first observation of reduction in nanoscale relative surface friction of Sc3 hydrophobin protein modified polymeric surfaces. Relative friction coefficients were dramatically reduced and hydrophilicity increased for polymer surfaces modified with Sc3 hydrophobin thin films. Morphology of the protein films as well as degree of surface modification was observed to be a function of film formation technique and composition of the substrate.
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