Preparation of nanoparticles by the self-organization of polymers consisting of hydrophobic and hydrophilic segments : Potential applications
Identifieur interne : 000F25 ( Main/Curation ); précédent : 000F24; suivant : 000F26Preparation of nanoparticles by the self-organization of polymers consisting of hydrophobic and hydrophilic segments : Potential applications
Auteurs : Takami Akagi [Japon] ; Masanori Baba [Japon] ; Mitsuru Akashi [Japon]Source :
- Polymer : (Guildford) [ 0032-3861 ] ; 2007.
Descripteurs français
- Pascal (Inist)
- Wicri :
- topic : Biodégradabilité.
English descriptors
- KwdEn :
Abstract
This review describes the preparation of core-corona type polymeric nanoparticles and their applications in various technological and biomedical fields. Over the past two decades, we have studied the synthesis and clinical applications of core-corona polymeric nanoparticles composed of hydrophobic polystyrene and hydrophilic macromonomers. These nanoparticles were utilized as catalyst carriers, carriers for oral peptide delivery, virus capture agents, and vaccine carriers, and so on. Moreover, based on this research, we attempted to develop novel biodegradable nanoparticles composed of hydrophobic poly(y-glutamic acid) (y-PGA) derivatives (γ-hPGA). Various model proteins were efficiently entrapped on/into the nanoparticles under different conditions: encapsulation, covalent immobilization, and physical adsorption. The encapsulation method showed the most promising results for protein loading. It is expected that biodegradable γ-hPGA nanoparticles can encapsulate and immobilize various biomacromolecules. Nanoparticles consisting of hydrophobic and hydrophilic segments have great potential as multifunctional carriers for pharmaceutical and biomedical applications, such as drug, protein, peptide or DNA delivery systems.
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<front><div type="abstract" xml:lang="en">This review describes the preparation of core-corona type polymeric nanoparticles and their applications in various technological and biomedical fields. Over the past two decades, we have studied the synthesis and clinical applications of core-corona polymeric nanoparticles composed of hydrophobic polystyrene and hydrophilic macromonomers. These nanoparticles were utilized as catalyst carriers, carriers for oral peptide delivery, virus capture agents, and vaccine carriers, and so on. Moreover, based on this research, we attempted to develop novel biodegradable nanoparticles composed of hydrophobic poly(y-glutamic acid) (y-PGA) derivatives (γ-hPGA). Various model proteins were efficiently entrapped on/into the nanoparticles under different conditions: encapsulation, covalent immobilization, and physical adsorption. The encapsulation method showed the most promising results for protein loading. It is expected that biodegradable γ-hPGA nanoparticles can encapsulate and immobilize various biomacromolecules. Nanoparticles consisting of hydrophobic and hydrophilic segments have great potential as multifunctional carriers for pharmaceutical and biomedical applications, such as drug, protein, peptide or DNA delivery systems.</div>
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