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Mechanistic Modelling of Transdermal Delivery Dependence on Drug Properties
1School of Engineering, University of Aberdeen, Aberdeen, AB24 3UE, UK.
Microneedle drug delivery performance depends on drug properties like diffusivity and binding. Understanding these factors optimizes microneedle therapy for specific skin targets.
Area of Science:
- Biomedical Engineering
- Pharmacology
- Materials Science
Background:
- Microneedles offer a minimally invasive transdermal drug delivery method with high patient compliance.
- While microneedle technology is advanced, the impact of drug properties on delivery efficiency is not fully understood.
Purpose of the Study:
- To investigate how intrinsic drug properties influence transdermal delivery via microneedles.
- To determine the effects of drug transport parameters on delivery outcomes in different skin layers and systemic circulation.
Main Methods:
- A multiphysics model was used to simulate transdermal drug delivery through a multilayered skin model.
- Nine drug parameters were analyzed, including diffusivity, partition coefficients, protein binding, permeability, and clearance.
Main Results:
- Drug delivery performance varied significantly across skin layers and in circulation based on drug properties.
- Optimal drug property values were identified for specific therapeutic targets within the skin.
Conclusions:
- Drug physicochemical characteristics critically influence transdermal transport dynamics via microneedles.
- Findings guide rational drug selection, formulation, and microneedle therapeutic development.
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