Discrimination of Escherichia coli strains using glycan cantilever array sensors |
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Authors: | Mader Andreas Gruber Kathrin Castelli Riccardo Hermann Bianca A Seeberger Peter H Rädler Joachim O Leisner Madeleine |
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Affiliation: | Center for Nanoscience, Ludwig-Maximilians-Universit?t, Fakult?t für Physik, Geschwister-Scholl-Platz 1, 80539 München, Germany. |
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Abstract: | Carbohydrate-based sensors, that specifically detect sugar binding molecules or cells, are increasingly important in medical diagnostic and drug screening. Here we demonstrate that cantilever arrays functionalized with different mannosides allow the real-time detection of several Escherichia coli strains in solution. Cantilever deflection is thereby dependent on the bacterial strain studied and the glycan used as the sensing molecule. The cantilevers exhibit specific and reproducible deflection with a sensitivity range over four orders of magnitude. |
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