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    Plasmonic Hepatitis B Biosensor for the Analysis of Clinical Saliva
    (Columbus, Ohio : American Chemical Society, 2017) Riedel, Tomáš; Hageneder, Simone; Surman, František; Pop-Georgievski, Ognen; Noehammer, Christa; Hofner, Manuela; Brynda, Eduard; Rodriguez-Emmenegger, Cesar; Dostálek, Jakub
    A biosensor for the detection of hepatitis B antibodies in clinical saliva was developed. Compared to conventional analysis of blood serum, it offers the advantage of noninvasive collection of samples. Detection of biomarkers in saliva imposes two major challenges associated with the low analyte concentration and increased surface fouling. The detection of minute amounts of hepatitis B antibodies was performed by plasmonically amplified fluorescence sandwich immunoassay. To have access to specific detection, we prevented the nonspecific adsorption of biomolecules present in saliva by brushes of poly[(N-(2-hydroxypropyl) methacrylamide)-co-(carboxybetaine methacrylamide)] grafted from the gold sensor surface and post modified with hepatitis B surface antigen. Obtained results were validated against the response measured with ELISA at a certified laboratory using serum from the same patients. © 2017
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    Identification of Eps15 as antigen recognized by the monoclonal antibodies aa2 and ab52 of the wuerzburg hybridoma library against Drosophila brain
    (San Francisco, CA : Public Library of Science, 2011) Halder, Partho; Chen, Yi-chun; Brauckhoff, Janine; Hofbauer, Alois; Dabauvalle, Marie-Christine; Lewandrowski, Urs; Winkler, Christiane; Sickmann, Albert; Buchner, Erich
    The Wuerzburg Hybridoma Library against the Drosophila brain represents a collection of around 200 monoclonal antibodies that bind to specific structures in the Drosophila brain. Here we describe the immunohistochemical staining patterns, the Western blot signals of one- and two-dimensional electrophoretic separation, and the mass spectrometric characterization of the target protein candidates recognized by the monoclonal antibodies aa2 and ab52 from the library. Analysis of a mutant of a candidate gene identified the Drosophila homolog of the Epidermal growth factor receptor Pathway Substrate clone 15 (Eps15) as the antigen for these two antibodies.