Christopher Barner-Kowollik

 

Queensland University of Technology (QUT), School of Chemistry, Physics and Mechanical Engineering, 2 George Street, QLD 4000, Brisbane, Australia
Macromolecular Architectures, Karlsruhe Institute of Technology (KIT), Engesserstr. 18, 76128 Karlsruhe, Germany

 

The lecture will introduce 3D laser lithography as a powerful method to generate 3D scaffolds for targeted cell attachment as well as the photochemical principles that underpin the photoresist chemistry. Specifically, the design of advanced photoresists will be explored that allow for the introduction of complex surface chemistries onto the 3D written scaffolds in a spatially resolved fashion, which in turn allows for the installation of functional entities in a finely controlled manner to direct cell guiding. In addition, the lecture will explore methods by which 3D written structures can be mildly cleaved by an outer stimulus. Finally, the currently outstanding challenges in 3D laser lithography will be discussed, specifically subdiffraction lithography, coding specific material properties with different colours of light from one resist (so-called λ-orthogonal 3D laser lithography), advanced degradable resists as well as achieving conducting properties in 3D soft matter materials.

 

References

 

"3D Laser Micro- and Nano-Printing: Challenges for Chemistry" Barner-Kowollik, C.; Bastmeyer, M.; Blasco, E.; Delaittre, G.; Mueller, P.; Richter, B.; Wegener, M. Angew. Chem. Int. Ed. 2017, in press.

"Guiding Cell Attachment in Three-Dimensional Microscaffolds Selectively Functionalized with Two Distinct Adhesion Proteins" Richter, B.; Hahn, V.; Bertels, S.; Claus, T. C.; Wegener, M.; Delaittre, G.; Barner-Kowollik, C.; Bastmeyer, M. Adv. Mat. 2017, 29, 1604342.

"Simultaneous Dual Encoding of 3D Structures via Light-induced Modular Ligation" Claus, T. K.; Richter, B.; Hahn, V.; Welle, A.; Kayser, S.; Wegener, M.; Bastmeyer, M.; Delaittre, G.; Barner-Kowollik, C. Angew. Chem. Int. Ed. 2016, 55, 3817-3822.

"Three-Dimensional Microscaffolds Exhibiting Spatially Resolved Surface Chemistry" Richter, B.; Pauloehrl, T.; Kaschke, J.; Fichtner, D.; Fischer, J.; Greiner, A. M.; Wedlich, D.; Wegener, M.; Delaittre, G.; Barner-Kowollik, C.; Bastmeyer, M. Adv. Mat.. 2013, 25, 6117–6122.