An approach to unification of the physicochemical properties of commercial detonation nanodiamonds
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In recent years, detonation nanodiamond is regarded as a promising material for biomedical applications. However, a significant problem that stops of intensive development of this area is a absence of commercial NDs standardization. This article presents the results of the study of physicochemical properties of several industrial nanodiamonds available in the international market. The differences of physicochemical characteristics of nanodiamonds produced, selected and purified in various ways are shown. A method is developed for industrial processing of nanodiamonds, that represents high-temperature hydrogenation of diamond surface and allows to unify their properties. It is shown that after these processing nanodiamonds have the same surface chemistry and can form stable hydrosols. The proposed method of industrial nanodiamonds unification can become a universal method of its standardization.
KeywordsDetonation nanodiamond physicochemical properties unification standardization hydrogenation surface chemistry hydrosols
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