Amphiphilic block copolymer and polymeric composition comprising the same for drug delivery
申请人:Seo Hyo Min
公开号:US20050201972A1
公开(公告)日:2005-09-15
The present invention relates to an amphiphilic block copolymer of a hydrophilic block and a hydrophobic block with a terminal hydroxyl group wherein the terminal hydroxyl group of the hydrophobic bock is substituted with a tocopherol or cholesterol group. It also relates to polymeric compositions capable of forming stable micelles in an aqueous solution, comprising the amphiphilic block copolymer and a polylactic acid derivative wherein one or more ends of the polylactic acid are covalently bound to at least one carboxyl group.
The present invention relates to the field of polymer chemistry and more particularly to multiblock copolymers and micelles comprising the same. Compositions herein are useful for drug-delivery applications.
HYBRID BLOCK COPOLYMER MICELLES WITH MIXED STEREOCHEMISTRY FOR ENCAPSULATION OF HYDROPHOBIC AGENTS
申请人:SILL Kevin N.
公开号:US20080274173A1
公开(公告)日:2008-11-06
The present invention relates to the field of polymer chemistry and more particularly to multiblock copolymers and micelles comprising the same.
本发明涉及聚合物化学领域,更具体地说是涉及多嵌段共聚物以及包含该共聚物的胶束。
[EN] POLYMER MICELLES CONTAINING ANTHRACYLINES FOR THE TREATMENT OF CANCER<br/>[FR] MICELLES POLYMÈRES CONTENANT DES ANTHRACYCLINES UTILISABLES À DES FINS DE TRAITEMENT DU CANCER
申请人:INTEZYNE TECHNOLOGIES INC
公开号:WO2010127271A1
公开(公告)日:2010-11-04
The present invention provides micelles having an anthracycline encapsulated therein, the micelles comprising a multiblock copolymer. The invention further provides methods of preparing and using said micelles, and compositions thereof.
Polyglutamic Acids Functionalised by Histidine Derivatives and Hydrophobic Groups and the Uses Thereof, in Particular for Therapeutic Purposes
申请人:Soula Olivier
公开号:US20100034886A1
公开(公告)日:2010-02-11
The invention relates to novel biodegradable materials based on modified polyamino acids and suitable, in particular, for vectoring active substance(s) (AS). Said invention also relates to novel pharmaceutical, cosmetic, dietary or plant protective compositions which are based on said polyamino acids.
The aim of said invention is to provide a novel polymer raw material usable for vectoring the AS and capable to optimally meet all specification in this area: biocompatibility, biodegradability, ability to become easily associated with many active substances or to solubilise them and to release said active substances in vivo. The aim is attained to 30 carbon atoms.
Said polyglutamates modified by histidine derivatives are soluble with pH lower than 5 and are easily and economically convertible into active substance vectorization particles which are able to form stable aqueous colloidal suspensions. On the contrary, said modified polyglutamates are insoluble in water with a physiological pH (7.4), and thereby have to be precipitated on an injection site in the case of a subcutaneous injection.