Dow Global Technolgoies LLC

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

Ziel Biopharma Ltd.

Kay Hettrich

Steffen Fischer

Jürgen Engelhardt

Manfred Pinnow

Klaus Nachtkamp

Christa Krüger

Wolfgang Wagenknecht

Volker Kriegisch

Oliver Hauser

Juta Rohowsky

The present invention provides novel nanoscale cellulose particles and also a process for their production. The cellulose-based particles obtained have volume-averaged particle sizes of less than 300 nm. These nanoparticles are produced from amorphous cellulose or by amorphization of cellulose, optional subsequent hydrolysis and by input of energy into a water-containing medium after or during dispersion.

Nanoparticles made of amorphous cellulose

The present invention provides novel nanoscale cellulose particles and also a process for their production. The cellulose-based particles obtained have volume-averaged particle sizes of less than 300 run. These nanoparticles are produced from slightly oxidized cellulose and by input of energy into a water-containing medium after or during dispersion.

Nanoparticles from slightly oxidised cellulose

The invention refers to a method for the production of cellulose sulfate which is completely water-soluble and has an adjustable solution viscosity in aqueous solution, which qualifies the produced sodium cellulose sulfate (SCS) as auxiliary material with ideal biological compatibility for biological and medical applications, in particular it is suitable for the encapsulation and immobilization of biological objects, e.g. tissue, cells, microorganisms, enzymes or viruses in microcapsule.

Process for the manufacture of cellulose sulfate with improved characteristics

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Caputh, Germany

Kay Hettrich