Skin electroporation for transdermal and topical delivery

Area of Science:

• Biophysics
• Dermatology
• Pharmaceutics

Background:

• Electroporation involves high voltage pulses that transiently perturb lipid bilayer membranes.
• This technique enhances transdermal drug delivery significantly, enabling transport of diverse molecules.
• It expands the range of drugs, from small to macromolecules, for skin delivery.

Purpose of the Study:

• To investigate the principles and applications of electroporation for transdermal drug delivery.
• To explore the factors influencing molecular transport through electroporated skin.
• To address challenges related to patient comfort during in vivo electroporation treatments.

Main Methods:

• Application of high voltage pulses to induce transient membrane permeabilization.
• Analysis of molecular transport mechanisms, including diffusion and electrophoresis.
• Evaluation of the influence of electrical parameters and drug properties on transport efficacy.
• Assessment of in vivo tolerability and patient comfort in human subjects.

Main Results:

• Electroporation increases transdermal drug delivery by orders of magnitude.
• It facilitates the delivery of a wide spectrum of drugs, regardless of their physicochemical properties.
• In vivo application is generally well-tolerated, though muscle contractions can occur.
• Electrode and patch design are critical for improving patient comfort.

Conclusions:

• Electroporation is a powerful method for enhancing transdermal drug delivery.
• Optimizing electrical parameters and electrode design is crucial for effective and comfortable treatments.
• This technique holds significant potential for delivering a broad range of therapeutic agents through the skin.