摘要:
An amphiphilic block copolymer is disclosed. The amphiphilic block copolymer includes one or more hydrophilic polymers, one or more hydrophobic polymer, and one or more zwitterions. The invention also provides a nanoparticle and carrier including the amphiphilic block copolymer for delivery of water insoluble drugs, growth factors, genes, or water insoluble cosmetic substances.
摘要:
An amphiphilic block copolymer. The amphiphilic block copolymer includes one or more hydrophilic polymers, one or more hydrophobic polymer, and one or more zwitterions. The invention also provides a nano particle and carrier comprising the amhpiphilic block copolymer for delivery of water-insoluble drugs, growth factors, genes, or cosmetic substances.
摘要:
An amphiphilic block copolymer. The amphiphilic block copolymer includes one or more hydrophilic polymers, one or more hydrophobic polymer, and one or more zwitterions. The invention also provides a nano particle and carrier comprising the amhpiphilic block copolymer for delivery of water-insoluble drugs, growth factors, genes, or cosmetic substances.
摘要:
The present invention discloses a method for preparing a hydrophilic porous polymeric material comprising the step of mixing a hydrophilic polymeric material with a hydrophobic material; solvent sintering the surface of the hydrophilic polymeric material with water or an aqueous solution; and removing the hydrophobic material contained within the hydrophilic polymeric material with a massive organic solvent. Thus, the hydrophilic porous polymeric material with high porosity and stable structure is rapidly mass produced.
摘要:
This present disclosure relates to pharmaceutical compositions for treating tumors using a polymeric micelle encapsulating an anti-tumor drug. The polymeric micelle comprises block copolymers comprising at least one hydrophilic block, at least one hydrophobic block, and at least one zwitterion. The present disclosure also relates to methods of enhancing the solubility of such drugs, methods of increasing the blood circulating time of such drugs, and methods of delivering such drugs to one or more solid tumors.
摘要:
This present disclosure relates to pharmaceutical compositions for treating tumors using a polymeric micelle encapsulating an anti-tumor drug. The polymeric micelle comprises block copolymers comprising at least one hydrophilic block, at least one hydrophobic block, and at least one zwitterion. The present disclosure also relates to methods of enhancing the solubility of such drugs, methods of increasing the blood circulating time of such drugs, and methods of delivering such drugs to one or more solid tumors.
摘要:
A method of making a porous biodegradable polymer is disclosed, which comprises (a) placing a biodegradable polymer and a solvent in a chamber; (b) adding a supercritical fluid to the chamber and maintaining the chamber at a predetermined temperature for a sufficient period of time to allow the supercritical fluid to dissolve into the biodegradable polymer with the help of the solvent; and (c) venting the supercritical fluid and the solvent by reducing the pressure in the chamber, thereby obtaining a porous biodegradable polymer.
摘要:
A controllable release composition is provided, including a polymer substrate and an active ingredient, in which the polymer substrate is a polymer blend including a biodegradable polyester, polyanhydride, and/or polyether, and the active ingredient includes a radioactive agent or a chemotherapeutic agent. The controllable release composition is useful for cancer therapy, particularly for solid cancer treatment.
摘要:
The present invention relates to crosslinking of porous materials made of biodegradable polymers. The method comprises: (a) placing a porous biodegradable polymer in a chamber; (b) introducing a supercritical fluid containing a crosslinking agent into the chamber to effect crosslinking of the porous biodegradable polymer; and optionally (c) introducing a pure supercritical into the chamber to wash the crosslinked polymer until the crosslinking agent is substantially removed from the polymer.