Direct Correlation between Local Pressure and Fluorescence Output in Mechanoresponsive Polyelectrolyte Brushes

Authors

  • Dr. Johanna Bünsow,

    1. Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB21EW (UK)
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  • Johann Erath,

    1. Physical Chemistry II, University of Bayreuth, Universitätsstrasse 30, 95440 Bayreuth (Germany)
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  • Dr. P. Maarten Biesheuvel,

    1. Dept. Environmental Technology, Wageningen University, Bornse Weilanden 9, 6708 WG Wageningen (The Netherlands)
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  • Prof. Dr. Andreas Fery,

    Corresponding author
    1. Physical Chemistry II, University of Bayreuth, Universitätsstrasse 30, 95440 Bayreuth (Germany)
    • Physical Chemistry II, University of Bayreuth, Universitätsstrasse 30, 95440 Bayreuth (Germany)
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  • Prof. Dr. Wilhelm T. S. Huck

    Corresponding author
    1. Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB21EW (UK)
    2. Radboud University Nijmegen, Institute for Molecules and Materials, Heyendaalseweg 135, 6525 AJ Nijmegen (The Netherlands)
    • Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB21EW (UK)
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  • W.T.S.H. gratefully acknowledges funding from the Friedrich Wilhelm Bessel Award of the Humboldt Foundation. J.B. thanks the German Research Foundation (Deutsche Forschungsgemeinschaft, DFG) for funding. J.E. and A.F. gratefully acknowledge financial support from the Deutsche Forschungsgemeinschaft (Forschergruppe 608: TP: Fe 600/10-1). We thank Petra Zippelius for helpful assistance in carrying out some of the experiments.

Abstract

original image

Feinste Berührung: Mechanoresponsive Polyelektrolytbürsten zeigen eine starke Korrelation zwischen lokaler Fluoreszenzintensität und lokalem Druck (siehe Bild; PDMS=Polydimethylsiloxan). Die Antwort der Oberfläche auf mechanische Stimuli war vollständig reversibel, und die Druckempfindlichkeit von unter 10 kPa kommt derjenigen menschlicher Haut nahe.

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