Nanomaterials describe, in principle, materials of which a single unit is sized (in at least one dimension) between 1 to 1000 nanometres (10−9 meter) but usually is 1 to 100 nm (the usual definition of nanoscale).
An EU team developed new sensors, processing software and models for studying degradation of old buildings. Simulations yielded an accurate assessment of deterioration, considering shape and materials, thus providing conservation prognosis.