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Krysiak S, Wei Q, Rischka K, et al. Adsorption mechanism and valency of catechol-functionalized hyperbranched polyglycerols. Beilstein J Org Chem. 2015;11:828-36doi: 10.3762/bjoc.11.92.
Krysiak, S., Wei, Q., Rischka, K., Hartwig, A., Haag, R., & Hugel, T. (2015). Adsorption mechanism and valency of catechol-functionalized hyperbranched polyglycerols. Beilstein journal of organic chemistry, 11828-36. https://doi.org/10.3762/bjoc.11.92
Krysiak, Stefanie, et al. "Adsorption mechanism and valency of catechol-functionalized hyperbranched polyglycerols." Beilstein journal of organic chemistry vol. 11 (2015): 828-36. doi: https://doi.org/10.3762/bjoc.11.92
Krysiak S, Wei Q, Rischka K, Hartwig A, Haag R, Hugel T. Adsorption mechanism and valency of catechol-functionalized hyperbranched polyglycerols. Beilstein J Org Chem. 2015 May 18;11:828-36. doi: 10.3762/bjoc.11.92. eCollection 2015. PMID: 26150898; PMCID: PMC4463490.
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Beilstein J Org Chem. 2015 May 18;11:828-36. doi: 10.3762/bjoc.11.92. eCollection 2015.

Adsorption mechanism and valency of catechol-functionalized hyperbranched polyglycerols.

Beilstein journal of organic chemistry

Stefanie Krysiak, Qiang Wei, Klaus Rischka, Andreas Hartwig, Rainer Haag, Thorsten Hugel

Affiliations

  1. Physik Department and IMETUM, Technische Universität München, 85748 Garching, Germany.
  2. Department of Chemistry and Biochemistry, Freie Universität Berlin, 14195 Berlin, Germany.
  3. Fraunhofer Institute for Manufacturing Technology and Advanced Materials (FhG IFAM), 28359 Bremen, Germany.
  4. Institute of Physical Chemistry, University of Freiburg, Albertstraße 23a, 79104 Freiburg, Germany.

PMID: 26150898 PMCID: PMC4463490 DOI: 10.3762/bjoc.11.92

Abstract

Nature often serves as a model system for developing new adhesives. In aqueous environments, mussel-inspired adhesives are promising candidates. Understanding the mechanism of the extraordinarily strong adhesive bonds of the catechol group will likely aid in the development of adhesives. With this aim, we study the adhesion of catechol-based adhesives to metal oxides on the molecular level using atomic force microscopy (AFM). The comparison of single catechols (dopamine) with multiple catechols on hyperbranched polyglycerols (hPG) at various pH and dwell times allowed us to further increase our understanding. In particular, we were able to elucidate how to achieve strong bonds of different valency. It was concluded that hyperbranched polyglycerols with added catechol end groups are promising candidates for durable surface coatings.

Keywords: adhesion; atomic force microscopy; catechol; hyperbranched polyglycerols; valency

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