Abstract: Nanodiamonds are grown under conditions where diamond-like organic seed molecules do not decompose. This permits engineered growth of fluorescent nanodiamonds wherein a custom designed seed molecule can be incorporated at the center of a nanodiamond. By substituting atoms at particular locations in the seed molecule it is possible to achieve complex multi-atom diamond color centers or even to engineer complete quantum registers. In addition, it is possible to grow ultra-small nanodiamonds, wherein each nanodiamond, no matter how small, can have at least one bright and photostable fluorescent emitter.

Abstract: Compositions comprising nanoparticles (e.g., nanocrystals) of stishovite silica are described. Such nanoparticles may be made by (1) subjecting a mesoporous silica starting material (e.g., SBA-16 or KIT-6) to a pressure of less than about 20 GPa (e.g., about 12 GPa); (2) heating the mesoporous silica starting material while under pressure to an elevated temperature of less than about 1000° C. (e.g., a temperature of between about 300° C. and about 400° C.); and thereafter isolating the nanoparticles. The nanoparticles may be used in a work tool that is configured and adapted for cutting, drilling, abrading, polishing, machining, or grinding, among other uses.

Abstract: Nanodiamonds are grown under conditions where diamond-like organic seed molecules do not decompose. This permits engineered growth of fluorescent nanodiamonds wherein a custom designed seed molecule can be incorporated at the center of a nanodiamond. By substituting atoms at particular locations in the seed molecule it is possible to achieve complex multi-atom diamond color centers or even to engineer complete quantum registers. In addition, it is possible to grow ultra-small nanodiamonds, wherein each nanodiamond, no matter how small, can have at least one bright and photostable fluorescent emitter.

Abstract: Compositions comprising nanoparticles (e.g., nanocrystals) of stishovite silica are described. Such nanoparticles may be made by (1) subjecting a mesoporous silica starting material (e.g., SBA-16 or KIT-6) to a pressure of less than about 20 GPa (e.g., about 12 GPa); (2) heating the mesoporous silica starting material while under pressure to an elevated temperature of less than about 1000° C. (e.g., a temperature of between about 300° C. and about 400° C.); and thereafter isolating the nanoparticles. The nanoparticles may be used in a work tool that is configured and adapted for cutting, drilling, abrading, polishing, machining, or grinding, among other uses.

Abstract: Compositions comprising nanoparticles (e.g., nanocrystals) of stishovite silica are described. Such nanoparticles may be made by (1) subjecting a mesoporous silica starting material (e.g., SBA-16 or KIT-6) to a pressure of less than about 20 GPa (e.g., about 12 GPa); (2) heating the mesoporous silica starting material while under pressure to an elevated temperature of less than about 1000° C. (e.g., a temperature of between about 300° C. and about 400° C.); and thereafter isolating the nanoparticles. The nanoparticles may be used in a work tool that is configured and adapted for cutting, drilling, abrading, polishing, machining, or grinding, among other uses.