1. Critical comments on "Ecotoxicology of carbon-based engineered nanoparticles: Effects of fullerene (C60) on aquatic organisms. Carbon, 44 (2006) 1112-20".
2. Do higher C60 fullerols (fullerenols) exist actually - I.
3. Do higher C60 fullerols (fullerenols) exist actually - II.
4. To the questions about nanoparticles purity in THF/C60 (nano-C60, nC60) aqueous dispersions.