Jump to main content
Jump to site search

Issue 8, 2016
Previous Article Next Article

In vivo biodistribution of stable spherical and filamentous micelles probed by high-sensitivity SPECT

Author affiliations

Abstract

Understanding how nanoparticle properties such as size, morphology and rigidity influence their circulation time and biodistribution is essential for the development of nanomedicine therapies. Herein we assess the influence of morphology on cellular internalization, in vivo biodistribution and circulation time of nanocarriers using polystyrene-b-poly(ethylene oxide) micelles of spherical or elongated morphology. The glassy nature of polystyrene guarantees the morphological stability of the carriers in vivo and by encapsulating Indium-111 in their core, an assessment of the longitudinal in vivo biodistribution of the particles in healthy mice is performed with single photon emission computed tomography imaging. Our results show prolonged blood circulation, longer than 24 hours, for all micelle morphologies studied. Dynamics of micelle accumulation in the liver and other organs of the reticuloendothelial system show a size-dependent nature and late stage liver clearance is observed for the elongated morphology. Apparent contradictions between recent similar studies can be resolved by considering the effects of flexibility and degradation of the elongated micelles on their circulation time and biodistribution.

Graphical abstract: In vivo biodistribution of stable spherical and filamentous micelles probed by high-sensitivity SPECT

Back to tab navigation

Supplementary files

Publication details

The article was received on 29 Apr 2016, accepted on 04 Jun 2016 and first published on 10 Jun 2016


Article type: Paper
DOI: 10.1039/C6BM00297H
Citation: Biomater. Sci., 2016,4, 1202-1211
  •   Request permissions

    In vivo biodistribution of stable spherical and filamentous micelles probed by high-sensitivity SPECT

    L. Jennings, O. Ivashchenko, I. J. C. Marsman, A. C. Laan, A. G. Denkova, G. Waton, F. J. Beekman, F. Schosseler and E. Mendes, Biomater. Sci., 2016, 4, 1202
    DOI: 10.1039/C6BM00297H

Search articles by author

Spotlight

Advertisements