Electrostatic interactions to direct nanoparticle self-assembly

Block copolymer nanostructures are used as nanoscopic templates for the placement of nanoparticles. This is achieved by electrostatic interactions and enthalpic effects. Structural development and comprehensive physical characterization of the resulting nanoparticle assemblies is performed using scanning probe and x-ray scattering techniques.
Contact:
X. Wang

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Glycopolymers as biofuncational material

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Our research focusses on incorporating the various biological functions of glycans into new functional polymermaterials. Applications of glycopolymers are multivalent sensor coatings with exceptional low unspecific binding, functional cell-culture dishes, bio-based antifouling coatings or bulk-materials, drug-delivery vehicles, biocompatabile coatings and bio-based glues or lubricants. We are always interested in new partnerships with companies and research institutes to broaden the scope of our research on biofunctional (glyco-)polymers.
Contact:
Dr. R. R. Rosencrantz
C. Schulte

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Chemically modified proteins for surface functionalization

We are monitoring the potential of conjugates of specific functional molecules with proteins for the functionalization of surfaces. Here, the protein moiety provided by the Schwaneberg group (Biotechnology, RWTH Aachen) serves as anchor for the attachment of the respective functionality. Besides different conjugation strategies, the binding of the conjugates to various surfaces and the resulting surface properties are investigated.
Contact:
M. Zimmermann

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Protein-polymer conjugates for self-assembled hybrid membranes

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We synthesize protein-polymer conjugates via the grafting-from approach. These conjugates are self-assembled at interfaces and form ultra-thin membranes after crosslinking the polymer chains. In case engineered channel proteins are used, these nanopores form uniform pores in the polymer matrix (in collaboration with the Schwaneberg group, Biotechnology, RWTH Aachen University)
Contact:
Dr. U. Glebe

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Nanoparticle-polymer hybrid materials

We synthesize nanoparticle-polymer materials through surface-initiated controlled radical polymerization techniques. Silica nanoparticles are used as well as magnetic metallic NPs. The resulting particles are studied with respect to their self-assembly and responsive properties.
Contact:
Dr. U. Glebe
L. Tan

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Synthesis of particles with photoresponsive self-assembly behavior

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The photoswitchable, supramolecular interaction between cyclodextrin and azobenzene (collaboration with Ravoo group, Münster) is used to synthesize photoresponsive materials self-assembled from anisotropic particles. Using established printing methods, patchy particles with different functionalities are synthesized and investigated with respect to their photophysical self-assembly behavior.
Contact:
Dr. S. Reinicke

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Synthesis of hybrid materials by sortase-mediated ligation

Sortase A is an enzyme found in Gram-positive bacteria that catalyzes the peptide bond formation between specific peptide sequences. In addition to proteins, artificial substrates can be ligated when they are equiped with appropriate peptide sequences.
Contact:
Dr. U. Glebe
X. Dai

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