Per Zweiphotonenpolymerisation (2PP) hergestellte dreidimensionale Scaffold- Strukturen: Vorlage als 3D-CAD-Modell (links) und REM Aufnahme einer hergestellten Struktur (rechts)

Main fields of work

• Ablative micro and submicrometer structuring
• Two-photon polymerization
• Maskless lithography
• Laser-induced melting dynamics
• Laser-induced forward transfer, surface functionalization, process control

Current research projects

• Project "Sustainable, bio-absorbable and permanent implants made of metal and ceramic materials" (Special Research Field). Subproject D2 "nerve-electrode interaction" and T1 "transferproject: functionalization of cochlea implant surfaces to optimize the nerve-electrode interaction"; controlling cell adhesion to surface topography; transfer of functionalization results into a clinically usable product.
• Project "Biological Laser Printing" (REBIRTH Excellence Cluster): Laser-induced forward transfer for living cells; post-transfer proof of cell vitality; development of a process for the rapid and reproducible generation of complex, three-dimensional cell structures.
• Project "Nanosurfaces" (REBIRTH Excellence Cluster): Generation of three-dimensional virtual scaffolds using two-photon polymerization (2PF); cell-interaction control through surface characteristics; improved cell migration and proliferation; controlling cell differentiation.
• Project "Laser-induced Forward Transfer of Biomaterials (Transregio Special Research Field 37): Development of complex, three-dimensional structures using laser-induced forward transfer, damage-free transfer and assembly of living cell types within a matrix as well as three-dimensional cell-structure generation.
• Project "Surface modification and bio-activation of Titan middle-ear implants" (Transregio Special Research Field 37): Structuring of middle-ear Titan implants for safe implant positioning during surgery; cell growth control through surface topography.
• Project "Bio-artificial vascular prostheses" (Transregio Special Research Field 37): Generation of three-dimensional bio-artificial vascular prostheses using two-photonics polymerization (2PP); bio-compatibility investigations of photosensitive bio-degradable materials; surface functionalization to imitate physiological mechanisms for cell adhesion
• Investigating how the watter wettability of surfaces can be influenced through laser structuring
• Process control for ultrashort pulse laser material processing systems
• Industry projects: micro-material processing through laser ablation