Liposome-based carrier systems and devices used for pulmonary drug delivery

Khan, Iftikhar and Elhissi, Abdelbary and Shah, Mahmood and Alhnan, Mohamed Albed and Ahmed, Waqar (2013) Liposome-based carrier systems and devices used for pulmonary drug delivery. In: Biomaterials and medical tribology: research and development. Woodhead series in biomaterials . Elsevier, pp. 395-443. ISBN 9780857090171

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Item Type:Book Section
Item Status:Live Archive

Abstract

Liposomes are spherical lipid carrier vesicles that vary in size (typically in the range of 20. nm to 20. μm), and are composed of single or multi-concentric bilayers, and have the ability to entrap both hydrophilic therapeutic agents within their central aqueous core or lipophilic drugs within their bilayer compartment. These carriers can transport drugs to particular sites of action within the pulmonary system by employing specially designed delivery devices. These devices work through specific mechanisms and their performance depends upon the formulation. Dry powder inhalers deliver dry powdered formulations. By contrast, pressurized metered dose inhalers deliver liquid formulations when an appropriate liquefied propellant is included. However, nebulizers are capable of delivering aqueous suspensions or solutions with no need for inclusion of a propellant. Liposomes were first reported in 1965 and since then significant developments in liposome research have emerged. Liposomes are now well established as carrier systems that accommodate therapeutic agents and deliver them to various sites in the body. Liposomes can sustain the release of the entrapped therapeutic materials, hence enhancing the therapeutic outcome. Liposome carrier systems have been studied extensively for prophylaxis against and the treatment of pulmonary diseases. © 2013 Woodhead Publishing Limited All rights reserved.

Keywords:Drug delivery, Dry powder inhaler, Liposome, Nebulizer, niosome, Pressurized meter dose inhaler, Pulmonary disease
Subjects:C Biological Sciences > C521 Medical Microbiology
Divisions:College of Science > School of Mathematics and Physics
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ID Code:27144
Deposited On:08 Sep 2017 11:20

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