Figure 10.

Optical micrographs of PDMS membranes with 6 wt.% purified MWCNTs, scale bar 200 μm (a) and 3 wt.% PP-MWCNTs, scale bar 50 μm (b).

Majeed et al. Nanoscale Research Letters 2012 7:296   doi:10.1186/1556-276X-7-296
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