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Trends Biotechnol. 2007 Dec;25(12):563-70. Epub 2007 Nov 8.

Nanoparticles for drug delivery to the lungs.

Author information

1
Harvard School of Engineering and Applied Sciences, 40 Oxford Street, ESL 406, Cambridge, MA 02138, USA.

Abstract

The lungs are an attractive route for non-invasive drug delivery with advantages for both systemic and local applications. Incorporating therapeutics with polymeric nanoparticles offers additional degrees of manipulation for delivery systems, providing sustained release and the ability to target specific cells and organs. However, nanoparticle delivery to the lungs has many challenges including formulation instability due to particle-particle interactions and poor delivery efficiency due to exhalation of low-inertia nanoparticles. Thus, novel methods formulating nanoparticles into the form of micron-scale dry powders have been developed. These carrier particles exhibit improved handling and delivery, while releasing nanoparticles upon deposition in the lungs. This review covers the development of nanoparticle formulations for pulmonary delivery as both individual nanoparticles and encapsulated within carrier particles.

PMID:
17997181
DOI:
10.1016/j.tibtech.2007.09.005
[Indexed for MEDLINE]

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