科研之友
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摘要
For the first time, overproduction of hydroxyl radicals (HO center dot) 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 HO center dot production in the presence of H-NDs (6-100 mu g 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.
- 出版日期2017-1-21
- 单位中国地震局
