Back to Search
Start Over
A Simple and Soft Chemical Deaggregation Method Producing Single-Digit Detonation Nanodiamonds
- Publication Year :
- 2020
- Publisher :
- American Chemical Society (ACS), 2020.
-
Abstract
- Detonation nanodiamonds (DNDs) are a class of very small and spherical diamond nanocrystals. Used in polymer reinforcement materials, as drug delivery systems or as fluorescent biomarkers, only the final deaggregation step down to the single-digit nanometer size unfolds their full potential. All existing deaggregation methods rely on mechanical forces, such as high-power sonication or beads milling. We report a purely chemical deaggregation method by combining oxidation in air followed by a boiling acid treatment. Our DNDs are surface functionalized with carboxyl groups, the final boiling acid treatment removes primary metal contaminants and the nanoparticles remain dispersed over a wide pH range. Experiments can be easily carried out in a standard chemistry laboratory. This is a key step for many DND-based applications, ranging from material science to biological or medical applications and opens a way for inexpensive mass production on industrial scale.
Details
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....38f6c4f8f1adbeda4e32cd76c86c12d4