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Updated: May 5, 2026

Solid Lipid Nanoparticles SLNs for Intracellular Targeting Applications
Published on: November 17, 2015
A comprehensive review on alpha-lipoic acid delivery by nanoparticles
Navid Mosallaei1, Amirhossein Malaekeh-Nikouei2, Setayesh Sarraf Shirazi2
1Department of Pharmaceutics, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.
Nanoparticulate delivery systems enhance alpha-lipoic acid (ALA) effectiveness by overcoming its low bioavailability and short half-life. These advanced systems offer improved stability and targeted delivery for various health conditions.
Area of Science:
- Pharmacology and Drug Delivery
- Nanotechnology
- Biochemistry
Background:
- Alpha-lipoic acid (ALA) possesses significant antioxidant properties with therapeutic potential for diverse health conditions.
- ALA's clinical utility is limited by poor bioavailability, rapid metabolism, and an undesirable odor.
- Nanoparticulate drug delivery systems offer a promising strategy to mitigate ALA's limitations.
Purpose of the Study:
- To comprehensively review nanoparticulate delivery systems for alpha-lipoic acid (ALA).
- To evaluate various nanoparticulate carriers for enhancing ALA's therapeutic efficacy.
- To highlight advancements in ALA delivery for improved treatment outcomes.
Main Methods:
- Review of literature on nanoparticulate systems for ALA delivery.
- Categorization of carriers including lipid-based nanoparticles, nanoemulsions, polymeric nanoparticles, films, nanofibers, and gold nanoparticles.
- Analysis of advantages such as improved stability, sustained release, and enhanced bioavailability.
Main Results:
- ALA-loaded solid lipid nanoparticles (SLNs) show promise for dermatological applications.
- Niosomes encapsulating ALA demonstrate potential in treating cerebral ischemia.
- Cationic nanoemulsions and chitosan-coated liposomes exhibit advantages for ophthalmic and transdermal delivery, respectively.
Conclusions:
- Nanoparticulate systems effectively address ALA's bioavailability and stability challenges.
- These advanced delivery strategies significantly enhance ALA's therapeutic potential across various medical fields.
- Innovative nanoparticulate approaches pave the way for improved ALA-based therapeutics.
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