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Figure 1 | Particle and Fibre Toxicology

Figure 1

From: Dispersion of single-walled carbon nanotubes by a natural lung surfactant for pulmonary in vitro and in vivo toxicity studies

Figure 1

Comparison of Survanta®-dispersed and non-dispersed SWCNT. (A) The non-dispersed SWCNT suspension (0.1 mg/ml in PBS) shows visible clumping of the SWCNT (left panel) with corresponding light microscopy (middle panel, 100x) and hyperspectral imaging of an individual clump (right panel, 400x). (B) The Survanta®-dispersed SWCNT suspension at the same concentration shows much improved dispersion with no visible large clumps (left panel). Corresponding light microscopy (middle panel) and hyperspectral imaging (right panel) show a uniform dispersion of the particles. (C-E) Field emission scanning electron microscopy of non-dispersed, Survanta®-dispersed, and aerosolized SWCNT at low magnification (400x, left panel) and high magnification (30,000x, right panel). Aerosolization of SWCNT was performed according to the method previously described by our group [14].

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