An approximately 2,000-year-old glass vessel displays some modern nano-material features.
The surface of this remarkable shard features intricate patterns of iridescent colors such as blues, greens, and oranges, while some areas depict reflected gold-toned mirrors that sparkle.The researchers utilized an electron microscope scanning technique to determine the nano-level structure of the patina, which is a thin layer that accumulates on the surface of objects over time due to continuous exposure to various environmental variables.
The piece exhibited unique atomic and mineral hierarchical structures that emerged from the glass's initial silicate and mineral components. These structures were likely influenced by the soil's pH and changing groundwater levels in the vicinity.by nature.” Photonic crystals are macroporous materials and are particularly used in the realm of optics.
The chemical analysis of the Roman glass piece places it between the 1st century BC and the 1st century AD. It was most likely created from the "sands of Egypt," implying that it was traded to this other region of the world.In this case, the photonic crystals formed naturally as a result of "corrosion and crystallization over centuries."
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