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    Zwitterionic Polymers

    Zwitterionic systems are known for their strong antifouling effect and they readily resist adsorption of proteins1 and a large range of freshwater and marine fouling organisms2-3. The low fouling properties are in general ascribed to the net charge neutrality of zwitterionic materials, and the selection of anionic and cationic groups allows to tailor the coatings for specific applications. As only a handful of zwitterionic monomers are commercially available, sulfobetaines and carboxybetaines are frequently studied systems4-5. We extend the range of accessible polymers and explore the next generation of polymers with advanced functionality.

    Students working on this project: Jana Karthäuser, Lisa Schardt, Patricia Gnutt

    Collaborations : Prof. Laschewsky, Potsdam University

     [1] Shahkaramipour, N. et al. Facile Grafting of Zwitterions onto the Membrane Surface to Enhance Antifouling Properties for Wastewater Reuse. Ind. Eng. Chem. Res. (2017), DOI:10.1021/acs.iecr.7b02378.

    [2] Koschitzki, F. et al. Amphiphilic Dicyclopentenyl/Carboxybetaine-Containing Copolymers for Marine Fouling-Release Applications. ACS Appl. Mater. Interfaces 12, 34148–34160 (2020), DOI:10.1021/acsami.0c07599

    [3] Koc, J. et al. Effects of crosslink density in zwitterionic hydrogel coatings on their antifouling performance and susceptibility to silt uptake. Biofouling 36, 646–659 (2020), DOI:10.1080/08927014.2020.1796983

    [4] Bauer, S. et al. Attachment of Algal Cells to Zwitterionic Self-Assembled Monolayers Comprised of Different Anionic Compounds. Langmuir (2016), DOI:10.1021/acs.langmuir.6b00839.

    [5] Bauer, S. et al. Influence of zwitterionic SAMs on protein adsorption and the attachment of algal cells. J. Biomater. Sci. Polym. Ed. 25, 1530–1539 (2014), DOI: 10.1080/09205063.2014.929429