carbon nano-onions

Converting fish scales into high-quality nanomaterials. (Left) Scheme depicting the synthesis of carbon nano-onions via the microwave pyrolysis of fish scales. The top inset shows the rise in temperature of the fish scales due to microwave absorption over a period of 10 seconds, as well as a proposed formation mechanism for the carbon nano-onions. (Right) transmission electron microscopy images showing the morphology of the synthesized carbon nano-onions and photographs of CNO dispersion in ethanol, an emissive flexible film, and an LED containing CNO. Image credit: Takashi Shirai from NITech, Japan.
A simple and convenient way to turn fish waste into extremely high-quality carbon-based nanomaterials