Journal
COLLOIDS AND SURFACES B-BIOINTERFACES
Volume 193, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.colsurfb.2020.111046
Keywords
Solid lipid nanoparticles; Miconazole nitrate; Topical delivery; Antifungal activity
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The purpose of this study was to develop miconazole nitrate (MN) based solid lipid nano-carrier formulae for topical delivery to enhance its antifungal effectiveness. Miconazole nitrate loaded Solid lipid nanoparticles (MN-SLNs) were formulated using a high shear homogenization technique characterized by particle size, polydispersity index (PI), trapping efficiency (EE percent), drug loading (DL percent) and zeta potential (ZP) characteristics. Furthermore, the optimized formulae were investigated for in-vitro release, ex-vivo study, skin toxicity test, and antifungal activity. With a particle size range of 244.2 +/- 27.2 nm to 493.6 +/- 35.3 nm, the selected MN-SLNs were spherical shaped. A high EE product percentage ranging from 79.38 +/- 2.35 percent to 95.92 +/- 6.12 percent and Zeta potential ZP values ranging from -21.6 +/- 7.05 mV to -31.4 +/- 6.84 mV suggesting strong stability was achieved. A controlled release of MN from the SLNs up to 48 h was shown in-vitro release study. The ex-vivo study showed that the selected MN-SLN (F4) mixture exhibited higher MN flux in the skin than a 1% MN solution. Moreover, selected MN-SLN (F4) has demonstrated a higher zone of inhibition against Candida albicans than a simple drug solution. MN-SLN (F4) had the lowest toxicity value for the skin. Besides, the MN-SLNs (F4) substantially reported antifungal activity with the least histopathological improvements compared to MN-solution utilizing immune-suppressing albino rats with induced candidiasis fungal infection. It can be fulfilled that SLNs can be acquired as a promising carrier for topical delivery of poorly soluble MN.
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