The Morning After: ‘Nanosphere’ paint could reduce a plane’s CO2 emissions

by Shivendra Singh · February 23, 2024

Every gram counts in commercial flight. Material scientists from Kobe University have discovered “nanospheres” that are near-invisible silicone crystals. The particles can reflect light thanks to very large and efficient scattering, research published in the ACS Applied Nano Matter journal details. The result could mean covering a surface in vibrant color while only adding 10 percent of the weight of painting an aircraft for the same effect.

Minoru and Hiroshi’s discovery focuses on structural rather than pigment color to exhibit and maintain hues. The former absorbs wavelengths while reflecting those the human eye picks up. Structural colors, on the other hand, are intense and bright as light interacts with micro- and nanostructures. While the headline commercial benefits are for planes, the paint could have many more uses simply for its brightness.

— Mat Smith