Figure 3.

Transmittance spectra of water and glycol-based nanofluids with the same SWCNH concentrations (0.005 g/L for G1 and A1 and 0.05 g/L for G4 and A4). Spectra of the pure base fluids are shown for comparison (G0 and A0).

Mercatelli et al. Nanoscale Research Letters 2011 6:282   doi:10.1186/1556-276X-6-282
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