Title:Development & Pharmaceutical Characterization of Isoniazid Loaded Solid Lipid Nanoparticle Drug Delivery Approach
Volume: 14
Issue: 3
Author(s): Swatantra Kumar Singh Kushwaha*, Awani Kumar Rai and Heena Parveen
Affiliation:
- Department of Pharmacy, Pranveer Singh Institute of Technology, Kanpur, 209305,India
Keywords:
In-vitro release, isoniazid, macrophage, nanoparticle, solid lipid nanoparticles, drug delivery.
Abstract: Background: Tuberculosis is a major public health problem in the world.
Isoniazid is a first line antitubercular drug active against Mycobacterium species which
inhibits mycolic acid synthesis.
Objective: The aim of the present investigation was the preparation of solid lipid nanoparticle
containing Isoniazid to increase bioavailability, sustained release and decrease toxicity
by increasing permeability.
Methods: Isoniazid was incorporated into SLN for sustained drug delivery, increasing
permeability and bioavailability. SLNs were prepared by emulsification followed by the
solvent evaporation technique by optimizing lipid, polymer and surfactant ratio under
controlled optimized process variables i.e. temperature and stirring speed. SLNs were
characterized for particle size analysis, comparative study design in different physiological
pH for in-vitro drug release and drug release kinetics.
Results: The best in-vitro release for F7 was found to be 80.2% in pH-7.4 and 82.2% in
pH-4.5. The particle size of the F7 formulation was found to be in the range of 200-
600nm . Among all 3 optimized formulations, i.e. F3, F7 and F8 in both the pH, F3
followed non-fickian diffusion mechanism in pH-4.5 whereas all the formulations in both
pH followed super-case II diffusion mechanism. The stability studies were carried out
as per ICH guidelines which signify that the SLNs were found stable in the refrigerated
condition.
Conclusion: The results clearly demonstrated that SLNs drug delivery system is a promising
approach for antitubercular drug delivery as it proved to sustained release, increase
permeability, enhanced bioavailability and thus decreased dosing frequency. Kinetic
modelling of the formulation with zero, first order, Higuchi and Korsmeyer- peppas is
explained in this article.