Nasal medications hold significant importance and are widely utilized due to their numerous advantageous properties, offering a compelling route for both local and systemic therapeutic effects. Nowadays, the development of nasal particles under 1 micrometer is in the focus of much scientific research. In our experiments, the use of innovative nanotechnology to increase the effectiveness of the active substance was of paramount importance. Our aim was to create solid nanoparticles that enable targeted and effective delivery of the active ingredient into the body. The innovation of this experimental series lies not only in highlighting the importance of amphiphilic compounds in enhancing penetration, but also in the fact that while most nasally administered formulations are in liquid form, our formulation is solid. Liquid formulations frequently suffer from the disadvantage of possible leakage during administration, which can reduce the bioavailability of the active ingredient. In our experiments we created novel drug delivery systems of finely divided powders, which, thanks to the penetration enhancers, can be successfully administered. These enhancers facilitate the swift disintegration and penetration of the particles through the membrane. This represents a new direction in nasal drug delivery methods. The results of our trials are promising in the development of innovative pharmaceutical products and outline the role of amphiphilic compounds in more efficient utilization and targeted application of active substances. According to our results it can be concluded that this innovative approach not only addresses the common issues associated with liquid nasal formulations but also paves the way for more stable and effective delivery methods. The use of finely divided powders for nasal delivery, enabled by penetration enhancers, represents a major breakthrough in the field, providing a dependable alternative to conventional liquid formulations and ensuring improved therapeutic results.
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http://dx.doi.org/10.1208/s12249-024-03000-8 | DOI Listing |
Eur J Pharm Biopharm
December 2024
Chongqing Key Laboratory of Chinese Medicine New Drug Screening, Southwest University, Chongqing, China. Electronic address:
Self-assembling natural drug hydrogels have emerged as promising biomaterials for scalable and customizable drug delivery systems attributed to their inherent biocompatibility and biodegradability. Asiaticoside (AS), a bioactive compound derived from Centella asiatica (L.) Urb.
View Article and Find Full Text PDFJ Chem Inf Model
December 2024
School of Chemistry, The University of New South Wales, Sydney, NSW 2052, Australia.
Amphiphilicity is an important property for drug development and self-assembly. This paper introduces a general approach based on a simple fatty alcohol (dodecanol) membrane model that can be used to quantify the amphiphilicity of small molecules that are in good agreement with experimental surface tension data. By applying the model to a systematic series of compounds, it was possible to elucidate the effect of different motifs on amphiphilicity.
View Article and Find Full Text PDFSmall
December 2024
Department of Chemical Engineering and Biotechnology, University of Cambridge, Philippa Fawcett Drive, Cambridge, CB3 0AS, UK.
Cellular senescence has recently been recognized as one of the hallmarks of cancer, aging, as well as many age-related disorders, sparking significant interest in the development of senolytics, compounds that can remove senescent cells. However, most current pharmacological strategies face challenges related to non-specific delivery, leading to significant side effects that hinder safe and effective treatments. To address these issues, galactose-functionalized amphiphiles are synthesized that can self-assemble into micelles and be loaded with a senolytic cargo.
View Article and Find Full Text PDFOrg Biomol Chem
December 2024
Alexander Butlerov Institute of Chemistry, Kazan Federal University, 18 Kremlevskaya Str., 420008 Kazan, Russia.
Efficient catalytic systems for various organic transformations in green solvents, especially water, are in great demand. Catalytically active bis-NHC complexes of palladium(II) based on imidazole-4,5-dicarboxylic acid with different lipophilicities were obtained. The synthesis of imidazolium salts was complicated by the formation of side products of nucleophilic substitution by iodide ions in the Menshutkin reaction involving alkyl iodides, which was successfully resolved by using alkyl tosylates.
View Article and Find Full Text PDFMolecules
December 2024
Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, 60-965 Poznań, Poland.
This study investigates a series of surface-active ionic liquids (SAILs), including both imidazolium monocationic and dicationic compounds. These compounds are promising candidates, as they combine unique surface properties with antimicrobial activity, aligning with modern trends in chemistry. The research encompasses synthesis, thermal analysis, and topographical assessment, focusing on the impact of the amphiphilic cationic moiety, alkyl chain length, and the spatial relationship between the imidazolium ring and the phenyl substituent on the compounds' physicochemical behavior.
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