Lipid-Polymer Hybrid Nanoparticles for Topical Drug Delivery System (original) (raw)
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Skin delivery is an exciting and challenging field. It is a promising approach for effective drug delivery due to its ease of administration, ease of handling, high flexibility, controlled release, prolonged therapeutic effect, adaptability, and many other advantages. The main associated challenge, however, is low skin permeability. The skin is a healthy barrier that serves as the body’s primary defence mechanism against foreign particles. New advances in skin delivery (both topical and transdermal) depend on overcoming the challenges associated with drug molecule permeation and skin irritation. These limitations can be overcome by employing new approaches such as lipid nanosystems. Due to their advantages (such as easy scaling, low cost, and remarkable stability) these systems have attracted interest from the scientific community. However, for a successful formulation, several factors including particle size, surface charge, components, etc. have to be understood and controlled. Th...
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Limited permeability through the stratum corneum (SC) is a major obstacle for numerous skin care products. One promising approach is to use lipid nanoparticles as they not only facilitate penetration across skin but also avoid the drawbacks of conventional skin formulations. This review focuses on solid lipid nanoparticles (SLNs), nanostructured lipid nanocarriers (NLCs), and nanoemulsions (NEs) developed for topical and transdermal delivery of active compounds. A special emphasis in this review is placed on composition, preparation, modifications, structure and characterization, mechanism of penetration, and recent application of these nanoparticles. The presented data demonstrate the potential of these nanoparticles for dermal and transdermal delivery.
Biomimetic Lipid-Based Nanosystems for Enhanced Dermal Delivery of Drugs and Bioactive Agents
Clinical utility of conventional oral therapies is limited by their inability to deliver therapeutic molecules at the local or targeted site, causing a variety of side effects. Transdermal delivery has made a significant contribution in the management of skin diseases with enhanced therapeutic activities over the past two decades. In the modern era, various biomimetic and biocompatible polymer−lipid hybrid systems have been used to augment the transdermal delivery of therapeutics such as dermal patches, topical gels, iontophoresis, electroporation, sonophoresis, thermal ablation, microneedles, cavitational ultrasound, and nano or microlipid vesicular systems. Nevertheless, the stratum corneum still represents the main barrier to the delivery of vesicles into the skin. Lipid based formulations applied to the skin are at the center of attention and are anticipated to be increasingly functional as the skin offers many advantages for the direction of such systems. Accordingly, this review provides an overview of the development of conventional to advanced biomimetic lipid vesicles for skin delivery of a variety of therapeutics, with special emphasis on recent developments in this field including the development of transferosomes, niosomes, aquasomes, cubosomes, and other new generation lipoidal carriers.
International Journal of Nanomedicine, 2019
Lipid-polymer hybrid nanoparticles (LPHNPs) are next-generation core-shell nanostructures, conceptually derived from both liposome and polymeric nanoparticles (NPs), where a polymer core remains enveloped by a lipid layer. Although they have garnered significant interest, they remain not yet widely exploited or ubiquitous. Recently, a fundamental transformation has occurred in the preparation of LPHNPs, characterized by a transition from a two-step to a one-step strategy, involving synchronous self-assembly of polymers and lipids. Owing to its two-in-one structure, this approach is of particular interest as a combinatorial drug delivery platform in oncology. In particular, the outer surface can be decorated in multifarious ways for active targeting of anticancer therapy, delivery of DNA or RNA materials, and use as a diagnostic imaging agent. This review will provide an update on recent key advancements in design, synthesis, and bioactivity evaluation as well as discussion of future clinical possibilities of LPHNPs.
Nanostructured Lipid Carriers: A Groundbreaking Approach for Transdermal Drug Delivery
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Nanostructured lipid carriers (NLCs) are novel pharmaceutical formulations which are composed of physiological and biocompatible lipids, surfactants and co-surfactants. Over time, as a second generation lipid nanocarrier NLC has emerged as an alternative to first generation nanoparticles. This review article highlights the structure, composition, various formulation methodologies, and characterization of NLCs which are prerequisites in formulating a stable drug delivery system. NLCs hold an eminent potential in pharmaceuticals and cosmetics market because of extensive beneficial effects like skin hydration, occlusion, enhanced bioavailability, and skin targeting. This article aims to evoke an interest in the current state of art NLC by discussing their promising assistance in topical drug delivery system. The key attributes of NLC that make them a promising drug delivery system are ease of preparation, biocompatibility, the feasibility of scale up, non-toxicity, improved drug loadin...
Lipid–Polymer Hybrid Nanosystems: A Rational Fusion for Advanced Therapeutic Delivery
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Lipid nanoparticles (LNPs) are spherical vesicles composed of ionizable lipids that are neutral at physiological pH. Despite their benefits, unmodified LNP drug delivery systems have substantial drawbacks, including a lack of targeted selectivity, a short blood circulation period, and in vivo instability. lipid–polymer hybrid nanoparticles (LPHNPs) are the next generation of nanoparticles, having the combined benefits of polymeric nanoparticles and liposomes. LPHNPs are being prepared from both natural and synthetic polymers with various techniques, including one- or two-step methods, emulsification solvent evaporation (ESE) method, and the nanoprecipitation method. Varieties of LPHNPs, including monolithic hybrid nanoparticles, core–shell nanoparticles, hollow core–shell nanoparticles, biomimetic lipid–polymer hybrid nanoparticles, and polymer-caged liposomes, have been investigated for various drug delivery applications. However, core–shell nanoparticles having a polymeric core su...
Insights into the Self assembled Lipid-Polymer hybrid Nanoparticles as Drug Delivery system
International Journal of Scientific Research and Management, 2017
The Use of polymeric nanoparticles and lipid carrier systems, including liposomes, solid lipid nanoparticles and nanostructured lipid carriers has limitations such as drug leakage and high water content of dispersions. Thus, lipid polymer hybrid nanoparticles have been explored by the researchers to provide a better effect using biomimetic characteristics of lipids and architectural advantage of polymeric core and finally producing a system which overcomes the limitations of both polymeric nanoparticles and lipid carrier systems. The system composed of biodegradable polymeric core surrounded by layers of phospholipids, additional compounds and mixtures may also be added to the phospholipids in the amphiphilic coating as for example fatty acids, steroids (such as cholesterol), triglycerides, lipoproteins, glycolipids, vitamins, detergents, and surface active agents. They are generally prepared by mixing liposomes and Polymeric nanoparticles to form lipid-polymer complexes in which a lipid bilayer or lipid multilayers cover the surface of the polymeric core. The space between polymeric core and lipid layer is usually occupied by water or aqueous buffer. The obtained particle size of the final particles remained in the desirable range with narrow distribution. The lipid-polymer hybrid nanoparticle by design has the capacity to co-encapsulate both hydrophobic and lipophilic drugs. The metabolic pathway of lipids in the body has led to the site specific delivery of such system with the modification of the pharmacokinetics and biodistribution of active ingredients for increased efficacy. This hybrid structure provides an advantages of controllable particle size, surface functionality, high drug loading, entrapment of multiple therapeutic agents, tunable drug release profile, and good serum stability. This review focuses on current research trends on Lipid Polymer hybrid nanoparticles including methods of preparation and physicochemical characteristics.
(Phospho)lipid-based Nanosystems for Skin Administration
Current Pharmaceutical Design, 2015
Nanotechnology and nanomedicine provide a platform for advanced therapeutic strategies for dermal and transdermal drug delivery. The focus of this review is on the current state-of-art in lipid-based nanotechnology and nanomedicine for (trans)dermal drug therapy. Drug delivery nanosystems based on the (phospho)lipid constituents are characterized and compared, with the emphasis on their ability to assure the controlled drug release to the skin and skin appendages, drug targeting and safety. Different types of liposomes, biphasic vesicles, particulate lipid-based nanosystems and micro-and nano-emulsions are discussed in more details. Extensive research in preclinical studies has shown that numerous parameters including the composition, size, surface properties and their combinations affect the deposition and/or penetration of carrier-associated drug into/through the skin, and consequently determine the therapeutic effect. The superiority of the most promising nanopharmaceuticals has been confirmed in clinical studies. We have selected several common skin disorders and provided overview over promises of nanodermatology in antimicrobial skin therapy, anti-acne treatment, skin oncology, gene delivery and vaccines. We addressed the potential toxicity and irritation issues and provided an overview of registered lipid-based products
International Journal of Pharmaceutical Investigation, 2019
Nanoparticulate drug delivery systems have an advanced and modern approach over the traditional delivery system. This systematic review on nanoparticulate drug delivery containing lipid and focus on preparation, challenges and advancement of delivery of the drug via topical and transdermal route. The first era of lipid nanoparticles were SLN and have more sustaining action as well as suitable for the higher permeation of drug. The NLC is the second generation lipid nanoparticles developed to overcome the limitation associated with SLN i.e low drug loading capacity, polymorphism of solid lipid. Production of solid lipid nanoparticles and nanostructured lipid carriers are produced by a variety of technologies which explored in the current review. Lipid nanoparticle has various properties for topical use of cosmetics and other pharmaceutical formulation, i.e. controlled and sustained release of medicaments, Physical and chemical stability of active pharmaceutical ingredients, targeted release, film formation and enhancing penetration with the enhancement of skin hydration. Skin hydration plays a major role in the topical delivery of API as it hydrates the skin which leads to opening of pores of skin. Due to occlusion nature of lipid nanopar-ticles trans epidermal water loss decline which softening the skin. The use of biodegradable grade lipid makes it more suitable because it does not cause any toxicity as created by polymeric nanoformulations. Furthermore, a discussion about the benefit/risk ratio of a nanoparticulate system containing lipids also explored in this paper. The SLN and NLC are a "nanosafe" carrier for the delivery of active pharmaceutical via topical route.
Nanostructured lipid carriers: A potential use for skin drug delivery systems
Pharmacological Reports, 2019
Skin application of pharmaceutical products is one of the methods used for drug administration. The problem of limited drug penetration via topical application makes searching for safe drug carriers that will provide an expected therapeutic effect of utmost importance. Research into safe drug carriers began with liposome structures, paving the way for work with nanocarriers, which currently play a large role as drug vehicles. Nanostructured lipid carriers (NLC) consist of blended solid and liquid lipids (oils) dispersed in an aqueous solution containing a surfactant. These carriers have many advantages: good biocompatibility, low cytotoxicity, high drug content; they enhance a drug's stability and have many possibilities of application (oral, intravenous, pulmonary, ocular, dermal). The following article presents properties, methods of preparation and tests to assess the quality and toxicity of NLC. This analysis indicates the possibility of using NLC for dermal and transdermal drug application.