Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V.

Centrum Fur Angewandte Nanotechnologie (can) Gmbh

Jan Niehaus

Horst Weller

Tobias Jochum

Bert Fischer

The present invention is based on a method for marking products using two or more ink formulations, each containing one or more photoluminescent dyes emitting radiation in the range of 380-3000 nm under photon excitation and distinguished by different fluorescence lifetimes, for storing information in serialization and/or track & trace systems and for document security.

Method for labelling products with an optical security feature with a temporal dimension

An apparatus () and a method () for the manufacture of nanoparticles. The apparatus and the method allows for the nucleation and growth of nanoparticles at independent temperatures. The independent temperatures allow for the growth of nanoparticles in a controlled environment avoiding spontaneous nucleation and allowing particle sizes to be controlled and facilitating the manufacture of particles of a substantially uniform size. Furthermore the apparatus () allows for the manufacture of core-shell nanoparticles and core-shell-shell nanoparticles.

Growing community of inventors

Hamburg, Germany

Jan Niehaus