DOI: 10.21276/ajptr
Sun, 21 Apr 2019

Preparation and Evaluation of Cyclodextrin based Atorvastatin Nanopsonges

Ashwini Deshpande1*, Pritesh Patel1

1.SVKM’s NMIMS, School of Pharmacy and Technology Management, Shirpur, Dist-Dhulia, Maharashtra-425405.


Cyclodextrin nanosponges are solid, porous, bio-compatible, nano-particulate three dimensional structures which form inclusion complexes with different types of lipophilic or hydrophilic drug molecules and have been used as drug carrier for different drugs. In this present work, new cyclodextrin-based nanosponges of atorvastatin were prepared by condensation polymerization and interfacial polymerization to release Atorvastatin in expected manner in the treatment of dyslipidaemia as novel carriers. Results of encapsulation efficiencies of all formulation trials revealed that condensation polymerization is the best method for nanosponges formation and that is considered as best selected method for preparation. For the selected condensation polymerization, encapsulation efficiencies of atorvastatin in nanosponge formulations were found to be 72 to 86%. SEM images revealed their porous nature and cavity was of β-cyclodextrin. The mean particle size of nanosponges was about 328 nm and Zeta potentials of the nanosponges were sufficient enough (-10 to -15mv) due to presence of carboxylic group and inclusion complex formation which assured stability of formulations. The results of FTIR and DSC confirmed that atorvastatin was compatible with β-cyclodextrin and completely encapsulated in nanosponges structure respectively. The selected formulation produces good dissolution profile (release more than 75% atorvastatin within 60 mins in 0.1 N HCL) which indicated that the solubility of atorvastatin was improved by forming nanosponges. In accelerated stability studies, no significant changes occurred in physical appearance and drug content of atorvastatin nanopsonges formulation during 3 months stability studies. Atorvastatin nanosponges confirmed by insolubility in water and organic solvents like dimethyl formamide, dichloromethane.

Keywords: Atorvastatin, β-cyclodextrin, nanosponges, cross-linker, inclusion complex, solubility.

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