A simple and soft chemical deaggregation method producing single-digit detonation nanodiamonds
- Terada, Daiki
- So, Frederick Tze Kit
- Hattendorf, Bodo
- Yanagi, Tamami
- Ōsawa, Eiji
- Mizuochi, Norikazu
- Shirakawa, Masahiro
- Igarashi, Ryuji
- Segawa, Takuya Fabian
DOIAbstract
Detonation nanodiamonds (DNDs) are a class of very small and spherical diamond nanocrystals. They are used in polymer reinforcement materials or as drug delivery systems in the field of nanomedicine. Synthesized by detonation, only the final deaggregation step down to the single-digit nanometer size (<10 nm) unfolds their full potential. Existing deaggregation methods mainly rely on mechanical forces, such as high-power sonication or bead milling. These techniques entail drawbacks such as contamination of the sample and the need for a specialized apparatus. In this paper, we report a purely chemical deaggregation method by simply combining oxidation in air followed by a boiling acid treatment, to produce highly stable single-digit DNDs in a...
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