Regensburg 2004 – scientific programme

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SYNP: Functional Nanoparticles

SYNP 2: Functional Nanoparticles - II

SYNP 2.3: Invited Talk

Tuesday, March 9, 2004, 12:30–12:50, H1

Synthesis and Application of Functional Nanomaterials — •Andreas Gutsch and Peter Ottersbach — Degussa AG, Creavis Technologies & Innovation, Paul-Baumann-Str.1, D-45764 Marl, Germany

Nanomaterials and ultra-thin functional coatings of nanoparticles will determine the utility of many products in the future. Degussa possesses many years of experience in the manufacture and marketing of fine powders. Fumed silica is used in particular as a reinforcing filler in silicone rubber and to control the rheology of coatings and colorants. Industrial carbon black is used particularly in the tire industry and as a pigment in printing inks, coatings and plastics. Nanoscale titanium dioxide and zinc oxide ensure effective ultraviolet-filter formulations. The nanoscale character of such pigments enables easy processing and combines high sun protection factors with transparency and nice skin feeling. Other nanoscale dispersions are useful for highly polished surfaces as, e.g., microchips. The combination of electrical conductivity and optical transparency is a great challenge in further developments of plastics. Nanoscaled indium-tin-oxide is being developed for use as a raw material for these applications. In cancer therapy, nanomaterials are of great interest. Superparamagnetic nanoparticles of iron oxide could be helpful to destroy tumors when using fast changing magnetic fields.