Further reading:
Y.-R. Chang, H.-Y. Lee, K. Chen, C.-C. Chang, D.-S. Tsai, C.-C. Fu, T.-S. Lim, Y.-K. Tzeng, C.-Y. Fang, C.-C. Han, H.-C. Chang, and W. Fann, "Mass production and dynamic imaging of fluorescent nanodiamonds," Nature Nanotech. 3, 284-288 (2008). T.-L. Wee, Y.-W. Mau, C.-Y. Fang, H.-L. Hsu, C.-C. Han, and H.-C. Chang, "Preparation and characterization of green fluorescent nanodiamonds for biological applications," Diamond Relat. Mater. 18, 567-573 (2009).