4.7 Review

Recent Advances in the Development of Liquid Crystalline Nanoparticles as Drug Delivery Systems

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Summary: This study developed a drug delivery system based on lipid liquid crystal (LLC) for long-term delivery of risperidone to improve psychological treatment. The optimized LLC formulation achieved maximum release after 60 days using different ratios of phosphatidylcholine (PC) to sorbitol monooleate (PC: SMO), tween grade 80, and tocopherol acetate (TA). In vitro and ex vivo studies, pharmacokinetics, and histopathological examination in rabbits were conducted to compare the optimized LLC with Risperdal CONSTA (R). The results showed that the optimized LLC formulation had the highest drug release percentage (100%) and better pharmacokinetic potentials compared to Risperdal CONSTA (R).

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Lyotropic liquid crystals for parenteral drug delivery

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Summary: The development of novel long-acting parenteral formulations based on lipid-based liquid crystals has been encouraged by the need for long-term treatments of chronic diseases. These liquid crystal systems, formed by amphiphilic molecules, spontaneously form liquid crystal nanoparticles in aqueous tissue environments, creating an in-situ long-acting sustained-release depot for extended treatment efficacy. This manuscript summarizes the different types of liquid crystals, recent formulation advancements, analytical evaluation, and therapeutic application of lyotropic liquid crystals in the field of parenteral sustained release drug delivery.

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Bioavailability and Antidiabetic Activity of Gliclazide-Loaded Cubosomal Nanoparticles

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Central composite optimization of ocular mucoadhesive cubosomes for enhanced bioavailability and controlled delivery of voriconazole

Mayada Said et al.

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Summary: Lipidic cubic phase (LCP) is a self-assembled system composed of lipids with interpenetrated aqueous channels, and its potential in drug delivery systems has been investigated. This study demonstrates that swollen LCP (SLCP) with larger aqueous channels can enhance the diffusion and skin penetration of peptides and proteins compared to regular LCP, providing an effective strategy for designing LCP systems for transcutaneous delivery of biomacromolecules.

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Temperature-sensitive lyotropic liquid crystals as systems for transdermal drug delivery

Jinpeng Liu et al.

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Cubosomes as a Potential Oral Drug Delivery System for Enhancing the Hepatoprotective Effect of Coenzyme Q10

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Mahmoud A. Elfaky et al.

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