Kinetics of functionalised carbon nanotube distribution in mouse brain after systemic injection: Spatial to ultra-structural analyses

Julie T-W Wang, Noelia Rubio, Houmam Kafa, Enrica Venturelli, Chiara Fabbro, Cécilia Ménard-Moyon, Tatiana Da Ros, Jane K Sosabowski, Alastair D Lawson, Martyn K Robinson, Maurizio Prato, Alberto Bianco, Frederic Festy, Jane E Preston, Kostas Kostarelos, Khuloud T Al-Jamal

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Abstract

Earlier studies proved the success of using chemically functionalised multi-walled carbon nanotubes (f-MWNTs) as nanocarriers to the brain. Little insight into the kinetics of brain distribution of f-MWNTs in vivo has been reported. This study employed a wide range of qualitative and quantitative techniques with the aim of shedding the light on f-MWNT's brain distribution following intravenous injection. γ-Scintigraphy quantified the uptake of studied radiolabelled f-MWNT in the whole brain parenchyma and capillaries while 3D-single photon emission computed tomography/computed tomography imaging and autoradiography illustrated spatial distribution within various brain regions. Raman and multiphoton luminescence together with transmission electron microscopy confirmed the presence of intact f-MWNT in mouse brain, in a label-free manner. The results evidenced the presence of f-MWNT in mice brain parenchyma, in addition to brain endothelium. Such information on the rate and extent of regional and cellular brain distribution is needed before further implementation into neurological therapeutics can be made.

Original languageEnglish
Pages (from-to)22-32
Number of pages11
JournalJournal of controlled release : official journal of the Controlled Release Society
Volume224
Early online date30 Dec 2015
DOIs
Publication statusPublished - 28 Feb 2016

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