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Tropical Journal of Pharmaceutical Research
Pharmacotherapy Group, Faculty of Pharmacy, University of Benin, Benin City, Nigeria
ISSN: 1596-5996
EISSN: 1596-9827
Vol. 13, No. 7, 2014, pp. 1179-1190
Bioline Code: pr14164
Full paper language: English
Document type: Review Article
Document available free of charge

Tropical Journal of Pharmaceutical Research, Vol. 13, No. 7, 2014, pp. 1179-1190

 en Biodegradable Poly(D,L-lactic-co-glycolic acid)-Based Micro/Nanoparticles for Sustained Release of Protein Drugs - A Review
Ansary, Rezaul H.; Awang, Mohamed B. & Rahman, Mokhlesur M.

Abstract

Biodegradable poly(D, L-lactide-co-glycolide) (PLGA) and PLGA-based polymeric nanoparticles are widely used for sustained release of protein and peptide drugs. These formulations are usually prepared by water/oil/water (W/O/W) and solid/oil/water (S/O/W) double emulsion solvent evaporation method. Other methods of preparation are nanoprecipitation, emulsion solvent diffusion and salting-out. This review attempts to address the effects of PLGA molecular weight, lactide to glycolide ratio, crystallinity, hydrophilicity as well as nanoparticles preparation variables (e.g., homogenizer speed, surfactants nature and concentration) on the size, morphology, drug encapsulation efficiency and release profile of PLGA mico/nanoparticles. The current knowledge of protein instability during preparation, storage and release from PLGA micro/nanoparticles and protein stabilization approaches has also been discussed in this review.

Keywords
Poly(D, L-lactic-co-glycolic acid); Nanoparticles; Microparticles; Protein/peptides; Sustained release; Protein instability

 
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