This video demonstrates the key steps of a micellar route for the preparation of metal nanoparticles with variable size and interparticle distance.
The experiment is carried out in the cleanroom facility of the Faculty of Natural Science by the co-workers of Dr. Alfred Plettl and Prof. Paul Ziemann of the Institute of Solid State Physics at the University of Ulm. The nanoparticles are then used as an etching mask for the reactive ion etching of nanopillars in silica on a silicon substrate. Superhydrophobic substrates with macroscopic dimensions are produced by plasma coating with a very thin film of CF. The wetting behavior of these samples can be studied by varying the geometrical parameters over a broad range. The chemophysical route employed for preparation and characterization of magnetic nanoparticles is presented in a further video.
Ziemann Group | University of Ulm, Germany
Prof. Paul Ziemann leads the Institute of Solid State Physics at the University of Ulm, Germany. His research interests include the properties of metallic nanostructures with an emphasis on transport and magnetic behavior. Furthermore, unconventional nanolithography based on the self-organization of diblock-copolymers and colloids, the preparation of thin films and their properties, the effects of medium-energy ion bombardment, and low-temperature elastic and inelastic tunneling spectroscopy of adsorbed organic molecules complement the research activities. Prof. Ziemann is an Associate Editor of the Beilstein Journal of Nanotechnology.
Alfred Plettl is a senior scientist at the Institute of Solid State Physics at the University of Ulm. He has managed the cleanroom facility of the Faculty of Natural Science since 1992. His research interests center on the development of a variable toolbox for structuring on the nanoscale, and especially the preparation, based on chemical self-assembly approaches, and directed deposition of metallic nanoparticles, as well as the combination of these tools with conventional lithography methods, and their applications in biophysics, biology, medicine, magnetism, and wetting.
Axel Seidenstücker, PhD student, is engaged in the preparation of bio-inorganic hybrid membranes with nanoporosity control, by genetically engineered viral seal rings.
Burcin Özdemir, PhD student, focuses on the generation of nanoscaled template structures on silica, both homogeneous and textured with gradients, for application in stem-cell research.
Fabian Enderle, PhD student, examines the integration of pore proteins in electrical nanostructures for the application of freestanding solid-state membranes in biosensors.
Stefan Wiedemann, PhD student, fabricates nanostructures with hydrophobic pillars by systematic variation of the parameters for the evaluation of their wetting properties.
Original research articles are published in the Open Access Beilstein Journal of Nanotechnology and are parts of the Thematic Series Organic–inorganic nanosystems.
Ziemann, P., Organic–inorganic nanosystems, Beilstein J. Nanotechnol. 2011, 2, 363–364. doi:10.3762/bjnano.2.41
Vogel, N.; Ziener, U.; Manzke, A.; Plettl, A.; Ziemann, P.; Biskupek, J.; Weiss, C. K.; Landfester, K., Platinum nanoparticles from size adjusted functional colloidal particles generated by a seeded emulsion polymerization process, Beilstein J. Nanotechnol. 2011, 2, 459–472. doi:10.3762/bjnano.2.50
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