Document Detail

Design and evaluation of a novel nanoparticulate-based formulation encapsulating a HIP complex of lysozyme.
MedLine Citation:
PMID:  23137392     Owner:  NLM     Status:  Publisher    
Formulation development of protein therapeutics using polymeric nanoparticles has found very little success in recent years. Major formulation challenges include rapid denaturation, susceptibility to lose bioactivity in presence of organic solvents and poor encapsulation in polymeric matrix. In the present study, we have prepared hydrophobic ion pairing (HIP) complex of lysozyme, a model protein, using dextran sulfate (DS) as a complexing polymer. We have optimized the process of formation and dissociation of HIP complex between lysozyme and DS. The effect of HIP complexation on enzymatic activity of lysozyme was also studied. Nanoparticles were prepared and characterized using spontaneous emulsion solvent diffusion method. Furthermore, we have also investigated release of lysozyme from nanoparticles along with its enzymatic activity. Results of this study indicate that nanoparticles can sustain the release of lysozyme without compromising its enzymatic activity. HIP complexation using a polymer may also be employed to formulate sustained release dosage forms of other macromolecules with enhanced encapsulation efficiency.
Ripal Gaudana; Mitan Gokulgandhi; Varun Khurana; Deep Kwatra; Ashim K Mitra
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-11-9
Journal Detail:
Title:  Pharmaceutical development and technology     Volume:  -     ISSN:  1097-9867     ISO Abbreviation:  Pharm Dev Technol     Publication Date:  2012 Nov 
Date Detail:
Created Date:  2012-11-9     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9610932     Medline TA:  Pharm Dev Technol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Par Pharmaceutical Companies, Inc , One Ram Ridge Road, Spring Valley, NY , USA.
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