Nanoparticles & Colloids

Nanoparticles exhibit physical and chemical properties that can differ significantly from those of bulk materials, opening up a wide range of applications in areas such as catalysis, medicine, environmental technologies, and energy conversion.

In this lecture, I introduce the fundamentals of nanoparticle and colloid science, ranging from particle formation and synthesis to colloidal stability, particle interactions, and characterization. We discuss how particle size, composition, and surface properties influence the behavior and functionality of nanomaterials. Selected examples connect these fundamental concepts to current applications in nanotechnology.

Offered: Every winter semester in Essen

Time: Thursdays, 10:00–12:00 (c.t.)

Laser Materials Processing

Lasers enable the precise processing of materials through highly controlled and localized energy input. In this lecture, I introduce the fundamentals of lasers and laser–material interactions and their application in modern materials processing.

Topics include laser ablation, laser cutting and drilling, laser welding, surface processing, and additive manufacturing (3D printing). We discuss the underlying physical mechanisms, the influence of laser and material parameters on the processing result, and selected examples from research and industrial applications.

Offered: Every summer semester in Essen

Time: Mondays, 12:00–14:00 (c.t.)