Traitement en cours

Veuillez attendre...

Paramétrages

Paramétrages

Aller à Demande

1. DK0860166 - Anvendelse af nanopartikler baseret på hydrofile polymerer som farmaceutiske former

Office
Danemark
Numéro de la demande 96932607
Date de la demande 22.10.1996
Numéro de publication 0860166
Date de publication 29.03.2005
Numéro de délivrance
Date de délivrance 29.03.2005
Type de publication T3
CIB
A61K 9/51
ANÉCESSITÉS COURANTES DE LA VIE
61SCIENCES MÉDICALE OU VÉTÉRINAIRE; HYGIÈNE
KPRÉPARATIONS À USAGE MÉDICAL, DENTAIRE OU POUR LA TOILETTE
9Préparations médicinales caractérisées par un aspect particulier
48Préparations en capsules, p.ex. de gélatine, de chocolat
50Microcapsules
51Nanocapsules
Déposants ADVANCELL - Advanced In Vitro Cell Tecnologies
Inventeurs ALONSO FERNANDEZ, Maria José
Données relatives à la priorité 9601685 29.07.1996 ES
Titre
(DA) Anvendelse af nanopartikler baseret på hydrofile polymerer som farmaceutiske former
Abrégé
(EN) Application of nanoparticles based on hydrophilic polymers as, pharmaceutical forms for the administration of active macromolecules. The nanoparticles (having a nanometric size and a hydrophilic character), also called nanospheres or latex, are colloidal systems comprised of the combination of hydrophilic polymers and an active ingredient having a high molecular weight (active macromolecule, molecular weight higher than 1000 daltons). The hydrophilic polymers are the chitosane (an aminopolysaccharide) or its derivatives and the polyoxyethylene or its derivatives. The association of the active macromolecule to said nanoparticles takes place in an aqueous phase without having to use organic solvents or auxiliary toxic substances. The active ingredient charge capacity of the nanoparticles is extremely high and additionally said charge is released in a controlled and time extended way. Additionally, said nanoparticles have a positive surface electric charge which the intensity may vary in relation to its composition.