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Fig. 6 | Particle and Fibre Toxicology

Fig. 6

From: Physicochemical characterization and genotoxicity of the broad class of carbon nanotubes and nanofibers used or produced in U.S. facilities

Fig. 6

Principal component analysis (PCA) of different CNT/F materials comparing ‘all characterization’ parameters (a), length – diameter – aspect ratio physical dimension (b; L-W-AR binning) and means only (c) physicochemical characteristics. The first two principal components (PC), PC1 and PC2, define the x- and y-axes of the scatter plots, respectively. The distance between two materials reflects the proximity in physicochemical properties between them. PC1, PC2 and PC3 together accounted for ~ 71, 68 and 82% of the contribution to the variance in the case of all characterization, L-W-AR binning and means only, respectively. The scatter plot of the PCA along with vectors depicting the loadings of variables is shown

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Particle and Fibre Toxicology

ISSN: 1743-8977

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