Seminar über aktuelle Fragen zur Dynamik komplexer Fluide: New materials for 3D printing, wetting and biofunctionalization

Seminar über aktuelle Fragen zur Dynamik komplexer Fluide

  • Datum: 19.07.2019
  • Uhrzeit: 10:15 - 11:15
  • Vortragende(r): Dorothea Helmer
  • IMTEK, Universität Freiburg
  • Ort: Max-Planck-Institut für Dynamik und Selbstorganisation (MPIDS)
  • Raum: SR 0.77
  • Gastgeber: MPIDS/DCF
  • Kontakt:
Novel materials and processes are key for the development of tailored structures and surfaces. 3D printing enables complex structuring of materials - but the choice of materials for 3D printing is still limited. Materials with enhanced chemical resistance such as super repellent materials are especially relevant for chemical and microfluidic applications. Porous fluorinated polymer foams are highly resistant polymers that provide surfaces with special wetting properties. We have recently reported nano-/microporous polymer foam “Fluoropor” with superhydrophobic properties. The nano-/microstructure results in a Cassie state of the droplet and is present throughout the bulk of the material, rendering the superrepellent effect insensitive to abrasion. Compared to polymers, glasses offer unmatched chemical resistance at equally high or better transparency. We have recently presented the first method for high-resolution 3D printing of glass developed in our group is presented. The method is based on a nanocomposite that can be processed as a liquid, paste or as a solid and consecutively turned into glass in a heating step. The biocompatibility of glasses makes them an interesting material for biological substrates, and glass surfaces can be conveniently functionalized with various reactive molecules. The attachment of biomolecules is, however, challenging. The “BioBitmaps” technology allows to produce high-resolution images of biomolecules in greyscale on various surfaces including glass, paper, polymers and metals. With a toolbox of material development, material shaping and material functionalization various possibilities for new applications in engineering, chemistry and biology emerge.
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