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. Author manuscript; available in PMC: 2013 Nov 11.
Published in final edited form as: Int J Biomed Nanosci Nanotechnol. 2013;3(1-2):10.1504/IJBNN.2013.054508. doi: 10.1504/IJBNN.2013.054508

Figure 3.

Figure 3

(a) Bright field photomicrographs of triplicate, fully differentiated Caco-2/HT29-MTX co-cultures exposed to various f-CNTs at 10 μg/mL for 48 h* (b) Relationship between colloidal stability of the f-CNTs (10 μg/mL) in cell culture media and the number of proteins that were differentially expressed at that exposure** (see online version for colours)

Notes: *Circles emphasise aggregate formation via agglomeration, bundling, and entanglement of f-CNTs at the cell monolayer surface. **It is assumed that nanoparticle settling is a function of low stability.