Figure 4From: Thermal diffusivity measurement of spherical gold nanofluids of different sizes/concentrationsThermal diffusivity decrease ratio with gold nanoparticle size. The nanoparticle concentration was 0.1 mg/ml. The inset shows (left to right) the different size nanofluids of 16 (seeds), 55, 63, 83, 99 and 125 nm.Back to article page