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Updated: May 2, 2026

Development, Characterization, and Evaluation of CAGE-based Ionic Liquid Systems for Transdermal Delivery
Published on: September 26, 2025
Overcoming the cutaneous barrier with microemulsions.
1Institute of Biomedical Science, University of São Paulo, São Paulo 05508, SP, Brazil. lublopes@usp.br.
Microemulsions, a type of nanocarrier, offer advantages for topical drug delivery due to their stability and penetration enhancement. Formulation design can optimize their composition and structure for improved efficacy in skin and transdermal applications.
Area of Science:
- Pharmaceutical Sciences
- Materials Science
- Dermatology
Background:
- Microemulsions are fluid, isotropic nanocarriers extensively researched for various delivery routes, particularly topical administration.
- They present significant advantages over conventional dermatological formulations, including ease of preparation, thermodynamic stability, and enhanced skin penetration.
Purpose of the Study:
- To review how microemulsion characteristics influence drug delivery and transport across the skin.
- To explore the modulation of these characteristics during formulation design for enhanced topical and transdermal efficacy.
Main Methods:
- Literature review of studies investigating microemulsions for topical and transdermal drug delivery.
- Analysis of factors influencing drug release, cutaneous, and transdermal transport within microemulsion systems.
Main Results:
- Key formulation parameters like composition, charge, and internal structure significantly impact drug release and skin permeation.
- Microemulsions' inherent properties, such as thermodynamic stability and penetration enhancement, make them highly suitable for dermatological applications.
Conclusions:
- Microemulsions are versatile nanocarriers with considerable potential for topical and transdermal drug delivery.
- Strategic modulation of microemulsion formulation characteristics is crucial for optimizing drug delivery systems and maximizing therapeutic outcomes.
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