Recent Advances in Drug Delivery and Formulation - Volume 19, Issue 2, 2025
Volume 19, Issue 2, 2025
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Non-Ionic Surfactant Vesicles (Niosomes): Structure, Functions, Classification and its Advances in Enhanced Drug Delivery
Non-ionic surfactant vesicles, commonly known as niosomes, have gained significant attention in the field of drug delivery because of their unique properties and advantages. Niosomes are self-assembled vesicles composed of non-ionic surfactants and cholesterol that can entrap both hydrophilic and hydrophobic drugs within their aqueous core or bilayer. This versatile drug delivery system offers improved stability, prolonged release profiles, reduced toxicity, and enhanced efficacy for a wide range of therapeutic agents. This comprehensive article delves into the structure, function, classification, and advances in niosomes for enhanced drug delivery. It explores various non-ionic surfactants used for niosome formulation and discusses their impact on encapsulation efficiency and stability. Moreover, it highlights the application of niosomes in the delivery of small molecules, proteins, and plant-derived natural products. This article provides an overview of the different formulation methods employed for niosome preparation and discusses recent advancements that have expanded their potential applications in targeted drug delivery systems.
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Scientific and Technological Prospecting on Polymeric Particles Containing Extracellular Matrix Peptides for the Treatment of Duchenne Muscular Dystrophy
Duchenne muscular dystrophy is a neuromuscular disease with an overall incidence of between 1 in 5,000 newborn males. Carriers may manifest progressive muscle weakness, resulting from the progressive degeneration of skeletal muscles, generating cardiac and respiratory disorders. Considering the lack of effective treatments, different therapeutic approaches have been developed, such as protein synthesis and extracellular matrix derivatives that can be used to improve muscle regeneration, maintenance, or repair. At the same time, the use of other anti-inflammatory drugs or biological agents to replace corticosteroids conjugated to these extracellular matrix derivatives may act more effectively in controlling the progression of Duchenne muscular dystrophy. Extracellular matrix-derived peptides (e.g. laminin-111 derivatives) and the use of essential oils with anti-inflammatory activity in polymeric particles for application in the treatment of Duchenne muscular dystrophy are discussed. For this purpose, the literature of patents and scientific articles from 2012–2024 on LM-111 peptides and Duchenne muscular dystrophy was reviewed. Many patents focus on palliative technologies that seek to prolong the progressive effects of the disease, considering the control of the inflammatory process. The technological and scientific prospecting suggests the need for continuous research on systems that can serve as a treatment for Dystrophy.
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Harnessing Polyphenols and Novel Delivery Strategies for Effective Treatment of Breast Cancer
Authors: Varneet Sandhu, Ayushi Taneja, Sonia Dhiman, Thakur Gurjeet Singh and Inderbir SinghBreast cancer continues to pose a significant global health challenge, with conventional therapies frequently hindered by resistance mechanisms and undesirable side effects. This review investigates the therapeutic potential of polyphenols—naturally occurring compounds recognized for their antioxidant, anti-inflammatory, and anti-cancer properties—as alternative or complementary treatments for breast cancer. We examine the molecular pathways through which polyphenols exert their effects, including their influence on oxidative stress modulation, inflammatory responses, cellular proliferation, apoptosis, and estrogen receptor signalling. Additionally, this review addresses innovative nano-based drug delivery systems such as nanoparticles, liposomes, niosomes, and phytosomes that enhance the stability, bioavailability, and targeted delivery of polyphenols. These advanced formulations aim to overcome challenges related to polyphenol degradation, low solubility, and rapid systemic clearance, thereby enhancing their therapeutic efficacy. Through a detailed analysis, we assess the contributions of various nanocarriers in optimizing the delivery of polyphenols specifically to breast cancer cells while minimizing systemic toxicity. The evidence presented highlights the potential of polyphenols in breast cancer management, further supported by nanoformulations that improve both stability and delivery efficiency.
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Treating Burn Infections With Topical Delivery of Positively Charged Norfloxacin-Loaded Lipid-Polymer Hybrid Nanoparticles
BackgroundNorfloxacin (NFX) is a wide-spectrum antibacterial agent that suffers from low water solubility and first-pass metabolism. This diminishes its oral bioavailability by 60-70%.
ObjectiveThis work aims to formulate a topical gel of NFX-loaded lipid polymer hybrid nanoparticles (NFX-LPHNPs) that combine the merits of liposomes and polymeric nanoparticles to overcome these problems.
MethodsNFX-LPHNPs formulations were developed using Precirol ATO (lipid) and Eudragit RL100 (polymer). They were characterized for particle size, uniformity of distribution, entrapment efficiency, zeta potential, and in-vitro release. Box–Behnken design was applied to study sequentially different variables' impact on material attributes. Then the optimized formula was re-evaluated, and incorporated in an HPMC-gel formulation. The gel formulation was evaluated for its physical properties, in vitro-release, and antibacterial activity.
ResultsNFX-LPHNPs exhibited particle sizes ranging from 28.92 to 730.30 nm. Particles were uniformly distributed with a positively charged surface (indicated by zeta potential with values from +3.91 to +60.2 mV). Formulations showed a % cumulative drug release of 87.9-100% in 8 h. The optimized formula showed a satisfied fit of measured-to-predicted responses with 159 nm particle size, 92.61% release and 79.2% entrapment efficiency. Gel formulation showed a sustained release over 24 h. Antibacterial testing against Staphylococcus aureus, Acinetobacter baumannii and Pseudomonas aeruginosa revealed enhanced activity of NFX-LPHNPs against these pathogens compared to bare NFX loaded gel.
ConclusionThese results illustrated the high potential of lipid-polymer hybrid nanoparticles to improve NFX activity against resistant pathogens common in burn infections. Moreover, the topical application helps overcome Norfloxacin oral-associated problems.
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Natural Extract-Loaded Herbal Patches: Assessment for Biomedical Application
Authors: Shaheen Ansari, Pragya, Sikha Srivastava and Poonam ParasharIntroductionMedicinal plants like Moringa and Selaginella have gained attention for their potential in wound healing including antimicrobial and antioxidant attributes. Extracts from these plants have shown promise in accelerating wound healing processes, enhancing fibroblast cell proliferation and migration, and providing antioxidant benefits. The objective of this work was to assess the therapeutic potential of extracts loaded patches for biomedical applications.
MethodsSelaginella bryopteris L. and Moringa oleifera Lam. extracts were prepared using the cold maceration method. The prepared extracts were evaluated for antibacterial activity and antioxidant potential. Additionally, patches were prepared using polyvinyl alcohol and hydroxypropyl methylcellulose as polymers and evaluated for in vitro release, cell viability and biocompatibility characteristics.
ResultsThe extract of both plants showed good antioxidant potency against ascorbic acid. Antibacterial activity revealed that Selaginella and Moringa extracts as well as patches consistently outperformed P. aeruginosa, B. subtilis, and S. aureus at varying concentrations. Physiochemical evaluation of patches indicated good weight uniformity, thickness, and folding endurance, with slight moisture uptake. Drug release profiles showed significant results for all formulations. The results of cell viability for patches showed an increased cell proliferation and were nontoxic.
ConclusionThe study suggests that both extract and patch show excellent antibacterial activity against Staphylococcus aureus. The characterization results showed that the patches were uniform in their drug content, weight, and thickness, and they also indicated the reproducibility of the method used. In the in vitro release study of Selaginella bryopteris L. and Moringa oleifera Lam. patches were fitted to the Higuchi model and also patches were found harmless for the cells as well as increased proliferation of cells.
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