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AssigneeMerck Patent GmbH
InventorsAndrea Hanefeld, Markus Weigandt, Michael Wolf, Percy Knolle, Matthias Schroeder, Regina Scherliess, Peter Walden, Andrea Diedrich, Hartwig Steckel, Renato Brito Baleeiro
Estimating the term…
The present invention is directed to nanoparticles comprising chitosan and an antigen, whereby the chitosan has a degree of deacetylation of about 90% and a molecular weight from 5 kDa to 80 kDa, to microparticles containing such nanoparticles as well as to a process for preparation of such particles. The particles are usable for vaccination.
A nanoparticle comprising chitosan and an antigen, wherein the chitosan has a degree of deacetylation of about 90% and a molecular weight from 5 kDa to 80 kDa.
Dependencies are inferred from the claim text.