The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 18, 2008
Filed:
Dec. 06, 2003
Burkhard Köhler, Leverkusen, DE;
Kerstin Bohmann, Köln, DE;
Werner Hoheisel, Köln, DE;
Markus Haase, Hamburg, DE;
Stefan Haubold, Hamburg, DE;
Christiane Meyer, Hamburg, DE;
Thorsten Heidelberg, Hamburg, DE;
Burkhard Köhler, Leverkusen, DE;
Kerstin Bohmann, Köln, DE;
Werner Hoheisel, Köln, DE;
Markus Haase, Hamburg, DE;
Stefan Haubold, Hamburg, DE;
Christiane Meyer, Hamburg, DE;
Thorsten Heidelberg, Hamburg, DE;
Bayer Technology Services GmbH, Leverkusen, DE;
Abstract
A process for synthesizing nanoparticles, in particular metal salt nanoparticles. To the synthesis mixture is added a modifying reagent which binds, by means of a first functional group, to the nanoparticle surface and which carries a second functional group for binding to molecules which are specifically selected in dependence on the subsequent use of the nanoparticles. This dispenses with a postsynthetic, separate, application-specific modification step. A new substance class, the pentaalkyl iminobis(methylenephosphono)carboxylates, are particularly suitable for this purpose. These modifying reagents permit the nanoparticles to grow in a specifically controlled manner and, at the same time, modify the surface of the growing nanoparticles, (in-situ) during the synthesis, such that the particles can be very readily dissolved in a large number of solvents and carry functional groups for coupling on molecules, resulting in the particles having, immediately after having been synthesized, a certain all-round usability.