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Highly deformable and highly fluid vesicles as potential drug delivery systems: theoretical and practical considerations

Authors Romero EL, Morilla MJ

Received 16 April 2013

Accepted for publication 31 May 2013

Published 20 August 2013 Volume 2013:8(1) Pages 3171—3186

DOI https://doi.org/10.2147/IJN.S33048

Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 2

Eder Lilia Romero, Maria Jose Morilla

Nanomedicine Research Program, Department of Science and Technology, National University of Quilmes, Bernal, Buenos Aires, Argentina

Abstract: Vesicles that are specifically designed to overcome the stratum corneum barrier in intact skin provide an efficient transdermal (systemic or local) drug delivery system. They can be classified into two main groups according to the mechanisms underlying their skin interaction. The first group comprises those possessing highly deformable bilayers, achieved by incorporating edge activators to the bilayers or by mixing with certain hydrophilic solutes. The vesicles of this group act as drug carriers that penetrate across hydrophilic pathways of the intact skin. The second group comprises those possessing highly fluid bilayers, owing to the presence of permeation enhancers. The vesicles of this group can act as carriers of drugs that permeate the skin after the barrier of the stratum corneum is altered because of synergistic action with the permeation enhancers contained in the vesicle structure. We have included a detailed overview of the different mechanisms of skin interaction and discussed the most promising preclinical applications of the last five years of Transfersomes® (IDEA AG, Munich, Germany), ethosomes, and invasomes as carriers of antitumoral and anti-inflammatory drugs applied by the topical route.

Keywords: Transfersomes, ethosomes, antitumoral, anti-inflammatory, topical delivery

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