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Solid Lipid Nanoparticles SLNs for Intracellular Targeting Applications
Published on: November 17, 2015
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Tacrolimus-Loaded Solid Lipid Nanoparticle Gel: Formulation Development and In Vitro Assessment for Topical
Abdul Shakur Khan1, Kifayat Ullah Shah1, Mohammed Al Mohaini2,3
1Faculty of Pharmacy, Gomal University, Dera Ismail Khan 29050, Pakistan.
Gels (Basel, Switzerland)
|February 24, 2022
Summary
This study developed tacrolimus-loaded solid lipid nanoparticles (SLNs) formulated into a gel, enhancing topical drug delivery. The novel gel formulation improved drug retention and skin adherence compared to traditional SLNs.
Area of Science:
- Pharmaceutical Sciences
- Nanotechnology
- Dermatology
Background:
- Topical tacrolimus formulations suffer from poor absorption, variable efficacy, and skin irritation, leading to low patient compliance.
- Solid lipid nanoparticles (SLNs) offer a promising approach to improve drug delivery but require optimization for topical application.
- Developing advanced drug delivery systems is crucial for enhancing therapeutic outcomes in dermatological treatments.
Purpose of the Study:
- To fabricate and characterize tacrolimus-loaded solid lipid nanoparticles (SLNs) for improved topical delivery.
- To formulate SLNs into a gel to enhance skin adherence and drug retention.
- To evaluate the physicochemical properties, drug release, permeation, and retention of the novel tacrolimus gel formulation.
Main Methods:
- Tacrolimus-loaded SLNs were prepared using a solvent evaporation method.
- Physicochemical characterization included particle size, polydispersity index (PDI), Zeta potential, drug content, entrapment efficiency, and pH.
- Drug release, skin permeation, and retention studies were conducted comparing SLNs and the gel formulation.
Main Results:
- SLNs exhibited monodispersed particle size (439-669 nm, PDI ≤0.4) and favorable physicochemical properties (pH 5.45-5.53).
- Chitosan decoration resulted in positive Zeta potential, indicating potential for enhanced mucoadhesion.
- The gel formulation significantly retarded drug release and improved drug retention in the skin compared to SLNs alone, attributed to enhanced bioadhesive properties.
Conclusions:
- Tacrolimus-loaded SLNs formulated into a gel represent an effective strategy for improving topical drug delivery.
- The enhanced bioadhesive properties of the gel formulation lead to superior drug retention in the skin.
- This novel approach holds potential for increasing patient compliance and therapeutic efficacy in dermatological applications.
