Paint me a computer
"Chemists in Poland have constructed logic gates, the ‘atoms’ of computation, out of well-known pigments.
Konrad Szacilowski and colleagues at the Jagiellonian University in Krakow have made chemical switches out of titanium dioxide and Prussian blue, which are both commonly used paint pigments. The switches can replicate the basic logical operations in digital circuits."
K Szacilowski, W Macyk and G Stochel, J. Mater. Chem., 2006DOI: 10.1039/b606402g
