A simple and soft chemical deaggregation method producing single-digit detonation nanodiamonds

Abstract

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....

Surface Control of Nanodiamond: From Homogeneous Termination to Complex Functional Architectures for Biomedical Applications

“…High colloidal stabilities are necessary when NDs are exposed to biological systems . The formation of larger agglomerates prevents the functional moieties on the ND surface from being accessible. , To overcome this drawback, several procedures for the fabrication of single-digit ND particles have been developed. , Apart from wet-chemical protocols and high-temperature gas treatment, mechanical disintegration through stirred milling with micrometer-sized zirconium oxide beads or bead-assisted sonic disintegration (BASD) seems to provide the best results (Figure A–C). , …”

“…6,32 To overcome this drawback, several procedures for the fabrication of single-digit ND particles have been developed. 33,34 Apart from wetchemical protocols and high-temperature gas treatment, mechanical disintegration through stirred milling with micrometer-sized zirconium oxide beads or bead-assisted sonic disintegration (BASD) seems to provide the best results (Figure 2A−C). 23,35 The shearing forces occurring during the procedure are responsible for the destruction of larger aggregates into primary particles.…”

Monodispersed Nanodiamonds for Enhanced Anticorrosion of Waterborne Epoxy Coatings

“…However, so far, relatively little attention has been paid to the NDs used as nanofillers for WEP coatings. It is well known that NDs prepared by the explosion method are composed of sp 2 carbon shell and sp 3 core and have very large surface energy, resulting in serious hard aggregates. − There are strong chemical bonds among hard aggregated NDs, and therefore, it is difficult to obtain monodispersed NDs (m-NDs). Presently, chemical covalent modification has been widely considered a very effective dispersing strategy for NDs. − Krueger et al used long alkyl chains to modify the surface of NDs by employing an esterification reaction of carboxylic acid chlorides with the surface hydroxyl group.…”

The role of nanoparticle charge in crystallization kinetics and ice adhesion strength for dispersions of detonation nanodiamonds

“…One of the most intriguing properties of DND is related to their interaction with the aqueous and nonaqueous dispersion media. [12][13][14][15][16][17][18] In particular, the impact of dispersed DND on the structure of water was detected [15][16][17][18][19] by various physicochemical methods. At the same time, the influence of these observed effects on the physicochemical properties of aqueous nanodispersions remains unexplored.…”