2600-year-old Nanomaterials Unearthed in Tamil Nadu

In Tamil Nadu's Keeladi, archaeologists have discovered the earliest known man-made nanomaterials. The materials have been found in the "unique black coatings" from ancient pottery pieces. The researchers have claimed that the coatings have been made of Carbon Nanotubes (CNT). Besides, they added the remains would be at least 2,600 years old. However, scientists say that the coatings would have formed accidentally during the making of pots at high temperature.