Effect of Edge Activator on Characteristic and in Vitro Skin Permeation of Meloxicam Loaded in Elastic Liposomes
The aim of this study was to prepare and investigate the potential use of liposomes in the transdermal drug delivery of meloxicam (MX). The vesicles containing a constant amount of MX, phosphatidylcholine (PC), cholesterol (Chol) and cetylpyridinium chloride (CPC) (1:5:1:1 MX/PC/Chol/CPC molar ratio) to obtain liposomes. MX loaded liposomes were investigated for particle size, zeta potential, entrapment efficiency (%EE) and in vitro skin permeation. The results indicated that the liposomes were spherical in structure, 77 to 100 nm in size and charged. The %EE of MX in the vesicles ranged from 55 to 56%. The elastic liposomes consisting of MX/PC/Chol/CPC provided a significantly higher skin permeation of MX compared to the other formulations. Fourier Transform Infrared Spectroscopy (FT-IR) and Differential Scanning Calorimetry (DSC) analysis indicated that the application of liposomes may disrupt the stratum corneum lipid. Our research suggests that MX loaded elastic liposomes can be potentially used as a transdermal drug delivery system.
Jianmin Zeng, Taosen Li, Shaojian Ma, Zhengyi Jiang and Daoguo Yang
S. Duangjit et al., "Effect of Edge Activator on Characteristic and in Vitro Skin Permeation of Meloxicam Loaded in Elastic Liposomes", Advanced Materials Research, Vols. 194-196, pp. 537-540, 2011