Abstract
Highly potent, but poorly water-soluble, drug candidates are common outcomes of lead optimization and other such drug discovery programmes. Poor drug solubility presents several challenges including reduced bioavailability on oral administration, lack of fed-fasted equivalence and abandonment of drug molecules in the early stage of development. Amongst many different strategies for improving drug solubility (e.g. micronization, complexation, prodrug design etc.), development of colloidal carriers has been looked upon as a favourable strategy. A few polymer-based and lipid-based colloidal systems including polymeric nanoparticles, liposomes and emulsions have been well-studied. In this book, the more recent colloidal lipid systems are discussed. Lipid nanoparticles present a viable alternative to other, more traditional, colloidal carriers. These nanoparticles not only have the advantages of most colloidal carriers but also reduce the associated shortcomings. Evolved from parenteral emulsions, lipid nanoparticles are composed of lipid materials that are solid at room and body temperatures, such as triglycerides or fatty acids. Lipid nanoparticle structures can be categorized into four different types: solid lipid nanoparticle (SLN), nanostructured lipid carrier (NLC), lipid drug conjugate (LDC) and polymer-lipid hybrid nanoparticle (PLN). These lipid nanoparticles can encapsulate hydrophilic and lipophilic drugs equally well and may potentially act as the next generation of drug carriers applied in pharmaceuticals. This book focuses on the composition, structure, production, characterization and stability of lipid nanoparticles. Particular emphasis has been given to solid lipid nanoparticles and nanostructured lipid carriers.
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Shah, R., Eldridge, D., Palombo, E., Harding, I. (2015). Introduction. In: Lipid Nanoparticles: Production, Characterization and Stability. SpringerBriefs in Pharmaceutical Science & Drug Development. Springer, Cham. https://doi.org/10.1007/978-3-319-10711-0_1
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