期刊
INTERNATIONAL JOURNAL OF PHARMACEUTICS
卷 601, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.ijpharm.2021.120571
关键词
Liposomes; Drug delivery; Liposome production; Liposome characterization; Market liposomes
资金
- European Union Horizon 2020 research and innovation programme [NMP-06-2015-683356 FOLSMART]
- Portuguese Foundation for Science and Technology (FCT) [UIDB/04469/2020, SFRH/BD/140321/2018]
- BioTecNorte operation - European Regional Development Fund [NORTE-01-0145-FEDER-000004]
- Fundação para a Ciência e a Tecnologia [SFRH/BD/140321/2018] Funding Source: FCT
Liposomes are effective drug delivery systems that improve therapeutic efficacy, being nontoxic and biodegradable. Key aspects such as design, production techniques, drug loading, and characterization for in vitro and in vivo performance are essential for successful liposomal formulations. Other topics explored include functionalization, targeting strategies, stability, limitations, and current market applications of liposomes in various therapeutic fields.
Liposomes are spherical vesicles consisting of one or more concentric phospholipid bilayers enclosing an aqueous core. Being both nontoxic and biodegradable, liposomes represent a powerful delivery system for several drugs. They have improved the therapeutic efficacy of drugs through stabilizing compounds, overcoming obstacles to cellular and tissue uptake and increasing drug biodistribution to target sites in vivo, while minimizing systemic toxicity. This review offers an overview of liposomes, thought the exploration of their key fundamentals. Initially, the main design aspects to obtain a successful liposomal formulation were addressed, following the techniques for liposome production and drug loading. Before application, liposomes required an extensive characterization to assurance in vitro and in vivo performance. Thus, several properties to characterize liposomes were explored, such as size, polydispersity index, zeta potential, shape, lamellarity, phase behavior, encapsulation efficiency, and in vitro drug release. Topics related with liposomal functionalization and effective targeting strategies were also addressed, as well as stability and some limitations of liposomes. Finally, this review intends to explore the current market liposomes used as a drug delivery system in different therapeutic applications.
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