a
Department of Biomolecular Systems, Max-Planck-Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam-Golm, Germany
b
Freie Universität Berlin, Institute of Chemistry and Biochemistry, Arnimallee 22, 14195 Berlin, Germany
E-mail: peter.seeberger@mpikg.mpg.de
;
Fax: +49 331 567 9302
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Tel: +49 331 567 9301