Solid Lipid Nanoparticles as a carrier of Matformin for Transdermal Delivery

Navneet Sharma, Sudha Rana, Hosakote G. Shivkumar, Rakesh Kumar Sharma

Abstract


Worldwide prevalence of type 2 diabetes is increasing with alarming proportions. Metformin is the first-line oral antidiabetic drug of choice for the treatment of type 2 diabetes.The objectives of the present study were to develop Metformin solid lipid nanoparticles  (M-SLN) and incorporate it in the transdermal patches. M-SLN was evaluated for Particle size, Zeta potential, Surface morphology by scanning electron microscopy (SEM), Transmission electron microscopy (TEM) and In vitro- In vivo release studies. Patches were evaluated by Ex-vivo skin permeation studies. M-SLN was prepared by solvent diffusion technique using propylene glycol (solvent), polymethacrylic acid (polymer) and Soya lecithin (lipid base).  After doing the evaluation of the above mentioned pharmaceutical parameters, M-SLN was loaded in Methocel K100M transdermal patches. Ex-vivo skin permeation studies were conducted on male Wistar rat’s skin using Franz-type diffusion Cells. The particle size of M-SLN varied among the formulation due to variation in the composition of formulations. Zeta potential of best formulation was found to be +27mV. SEM  and  TEM indicates discrete spherical structure without aggregation. Drug content was found to be 1.45mg/patch. The ex-vivo permeation studies indicate that the high cumulative amount of drug is permeated from M-SLNs. Our study proves the successful delivery of M-SLN from transdermal patch, and Histopathological studies confirmed that the M-SLN transdermal patch only provoked an acceptable modest inflammatory response. These results support the feasibility of developing transdermal metformin for human applications. Thus, transdermal delivery of M-SLN is a safe, painless and cost effective drug delivery system for diabetes patients.


Keywords


Solid lipid nanoparticles, Metformin, Transdermal patches, In vitro-In vivo studies, Ex-vivo studies, histopathological studies.

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References


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