1.
Chem Commun (Camb)
; 53(7): 1237-1240, 2017 Jan 19.
Article
in English
| MEDLINE
| ID: mdl-28058432
ABSTRACT
For the first time, overproduction of hydroxyl radicals (HOË) induced by plasma hydrogenated detonation nanodiamonds (H-NDs) under X-ray irradiation is reported. Using coumarin (COU) as a fluorescent probe, we reveal a significant increase of 40% of the HOË production in the presence of H-NDs (6-100 µg ml-1) compared with water alone. This effect is related to the negative electron affinity of the hydrogenated nanodiamonds and illustrates the ability of H-NDs to produce reactive oxygen species probably via electron emission in water under X-ray irradiation.