Table 5 Sources of nanomaterials
From: Assessing the nanotechnology on the grounds of costs, benefits, and risks
S.N | Source | Example |
|---|---|---|
1. | Incidental nanomaterials | Nanoparticles from forest fire, dust storm, cosmic evolutions, volcanic eruptions, etc. [90]. |
2. | Engineered nanomaterials | Nanoparticles synthesized in the laboratory, released from the exhausts of engines, construction, and demolition works, found in health care and biomedical products [91,92,93]. |
3. | Naturally produced nanomaterials | Nano-organisms, viruses, nanobacteria, magneto-tactic bacteria, etc. [94, 95]. |