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Issue 58, 2014
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Smart drug delivery systems: from fundamentals to the clinic

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Forty years after the first reports on stimuli-responsive phase transitions in synthetic hydrogels, the first medicines based on responsive components are approaching the market. Sensitiveness to internal or external signals of the body can be achieved by means of materials (mostly polymers, but also lipids and metals) that modify their properties as a function of the intensity of the signal and that enable the transduction into changes in the delivery system that affect its ability to host/release a therapeutic substance. Integration of responsive materials into implantable depots, targetable nanocarriers and even insertable medical devices can endow them with activation-modulated and feedback-regulated control of drug release. This review offers a critical overview of therapeutically-interesting stimuli to trigger drug release and the evolution of responsive materials suitable as functional excipients, illustrated with recent examples of formulations in clinical trials or already commercially available, which can provide a perspective on the current state of the art on smart drug delivery systems.

Graphical abstract: Smart drug delivery systems: from fundamentals to the clinic

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The article was received on 24 Feb 2014, accepted on 23 Apr 2014 and first published on 23 Apr 2014

Article type: Feature Article
DOI: 10.1039/C4CC01429D
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Citation: Chem. Commun., 2014,50, 7743-7765
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    Smart drug delivery systems: from fundamentals to the clinic

    C. Alvarez-Lorenzo and A. Concheiro, Chem. Commun., 2014, 50, 7743
    DOI: 10.1039/C4CC01429D

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