thumb|upright=1.2|Natural nanodiamond aggregates from the Popigai impact structure, Siberia, Russia. thumb|upright=1.2|Internal structure of the Popigai nanodiamonds. thumb|upright=1.2|Internal structure of synthetic nanodiamonds. thumb|right|upright|Electron micrograph of detonation nanodiamonds
via PubMed
thumb|upright=1.2|Natural nanodiamond aggregates from the Popigai impact structure, Siberia, Russia. thumb|upright=1.2|Internal structure of the Popigai nanodiamonds. thumb|upright=1.2|Internal structure of synthetic nanodiamonds. thumb|right|upright|Electron micrograph of detonation nanodiamonds
Nanodiamonds, or diamond nanoparticles, are diamonds with a size below 100 nanometers. They can be produced by impact events such as an explosion or meteoritic impacts. Because of their inexpensive, large-scale synthesis, potential for surface functionalization, and high biocompatibility, nanodiamonds are widely investigated as a potential material in biological and electronic applications and quantum engineering.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).