Copolymers;
drug delivery;
micelles;
pH-responsive;
synthesis;
METHOXY POLY(ETHYLENE GLYCOL);
TRANSFER RAFT POLYMERIZATION;
DRUG CARRIERS;
NANOPARTICLES;
DELIVERY;
COPOLYMER;
HYDROGELS;
STRATEGY;
BEHAVIOR;
D O I:
10.1080/03602559.2015.1132443
中图分类号:
O63 [高分子化学(高聚物)];
学科分类号:
070305 ;
080501 ;
081704 ;
摘要:
Two novel triblock copolymers poly(hydroxypropyl acrylate)-b-poly (methyl methacrylate)-b-poly(N,N-dimethylaminoethyl methacrylate) and poly(hydroxypropyl acrylate)-b-poly(methyl methacrylate)-b-poly(acrylic acid) were successfully synthesized. In acetone media, using the electrostatic interactions between N,N-dimethylaminoethyl methacrylate and acrylic acid units, they could form spherically shaped multilayer micelles with pH-responsive, and have a mean diameter around 110nm. The critical micelle concentration of it was determined to be 2.42mg/L. In vitro release experiments, the folic acid-loaded micelles exhibited sustained release behavior and the drug release rate was affected by the pH value of release media. These results indicate that the multilayer micelles may serve as a novel intelligent drug delivery system. [GRAPHICS] .
机构:
Univ Lisbon, Fac Pharm, Res Inst Med & Pharmaceut Sci iMed UL, P-1649003 Lisbon, PortugalUniv Lisbon, Fac Pharm, Res Inst Med & Pharmaceut Sci iMed UL, P-1649003 Lisbon, Portugal
Bettencourt, Ana
Almeida, Antonio J.
论文数: 0引用数: 0
h-index: 0
机构:
Univ Lisbon, Fac Pharm, Res Inst Med & Pharmaceut Sci iMed UL, P-1649003 Lisbon, PortugalUniv Lisbon, Fac Pharm, Res Inst Med & Pharmaceut Sci iMed UL, P-1649003 Lisbon, Portugal
机构:
Univ Lisbon, Fac Pharm, Res Inst Med & Pharmaceut Sci iMed UL, P-1649003 Lisbon, PortugalUniv Lisbon, Fac Pharm, Res Inst Med & Pharmaceut Sci iMed UL, P-1649003 Lisbon, Portugal
Bettencourt, Ana
Almeida, Antonio J.
论文数: 0引用数: 0
h-index: 0
机构:
Univ Lisbon, Fac Pharm, Res Inst Med & Pharmaceut Sci iMed UL, P-1649003 Lisbon, PortugalUniv Lisbon, Fac Pharm, Res Inst Med & Pharmaceut Sci iMed UL, P-1649003 Lisbon, Portugal