Evaluation of a Polymer-Lipid-Polymer System Utilising Hybrid Nanoparticles of Dapsone as a Novel Antiacne Agent

Author(s): Md. Meraj Anjum, Jovita Kanoujia, Poonam Parashar, Malti Arya, Alok K. Yadav, Shubhini A. Saraf

Journal Name: Current Drug Therapy

Volume 11 , Issue 2 , 2016

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Graphical Abstract:


Background: Topical drug delivery system is an attractive way to target dermatological disorders. Dapsone is commonly used as anti-leprotic drug. In this research work dapsone was repurposed for treating acne via topical application.

Objective: The aim of present work was to formulate, optimize and characterize hybrid nanoparticles (HNs) containing DAP (dapsone) and incorporating the same into a topical gel base.

Method: The HNs were prepared using melt-emulsification and ultrasonication process. The HN formulations were characterized for particle size, zeta potential and entrapment efficiency applying 23 factorial design.

Results: The results revealed that HN-4 has an average particle size of 277nm, zeta potential of -26.7 mV, entrapment efficiency of 75.81%. Transmission electron microscopy (TEM) confirmed that HNs were spherical in shape with polymer core surrounded by a lipid shell. Further, the pelletized HNs were incorporated in carbopol 940 gel base and analysed for pH, drug content, viscosity and optimized batch was evaluated for texture analysis, in-vitro skin permeation, and antimicrobial study. The stability studies showed that DAP-HN4 G3 (dapsone loaded carbopol gel) stored at 40±2oC was stable and non-irritant as per Hen’s Egg Test Chorioallantoic Membrane (HET CAM) study.

Conclusion: It can be concluded that formulation containing DAP HNs was found to be stable, non-irritant and may prove to be an effective and promising delivery system for acne treatment.

Keywords: Factorial design, HET-CAM, texture analysis, skin permeation, antimicrobial activity.

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Article Details

Year: 2016
Published on: 25 October, 2016
Page: [86 - 100]
Pages: 15
DOI: 10.2174/1574885511666160818145920

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PDF: 68