Nanodiamonds, or diamond nanoparticles, are diamonds with a size below 100 nanometers. In 1963, Soviet scientists at the All-Union Research Institute of Technical Physics noticed that nanodiamonds were created by nuclear explosions that used carbon-based trigger explosives. Three main aspects of the structure of diamond nanoparticles are to be considered: the overall shape, the core, and the surface. While the core closely resembles the structure of a diamond, the surface of diamond nanoparticles resembles. Occasionally, defects such as nitrogen vacancy centers can be found in the structure of diamond nanoparticles. A recent study shows that the frequency of nitrogen vacancy centers decreases with the size of diamond nanoparticles. Other than explosions, synthesis methods include hydrothermal synthesis, ion bombardment, laser bombardment, microwave plasma chemical vapor deposition techniques, ultrasound synthesis, and electrochemical synthesis.Yielding a mixture of nanodiamonds averaging 5 nm and other graphitic compounds. In detonation synthesis, nanodiamonds form under pressures greater than 15 GPa and temperatures greater than 3000K without oxygen to prevent the oxidation of diamond nanoparticles. Generally, gaseous ozone treatment or solution-phase nitric acid oxidation removes sp2 carbons and metal impurities. The dissociation of ethanol vapor also forms nanodiamonds. And via ultrafast laser filamentation in ethanol. The N-V center defect consists of a nitrogen atom instead of a carbon atom next to a vacancy (space instead of an atom) within the diamond's lattice structure. Recent advances (up to 2019) in nanodiamonds in quantum sensing applications using NVs have been summarized in the following review. They efficiently extract spectral coefficients while suppressing decoherence, thus improving sensitivity. Nanodiamonds share visible-scale diamonds' hardness and chemical stability, making them candidates for polishes and engine oil additives for improved lubrication. The low cytotoxicity of diamond nanoparticles affirms their utilization as biologically compatible materials. If you are looking for high quality, high purity and cost-effective Nano diamonds, or if you require the latest price of Nano diamonds, please feel free to email contact mis-asia.