Nano diamonds with nitrogen vacancy centers have the potential to be used to make highly sensitive cancer detectors. However, nitrogen vacancies are highly unstable and would theoretically require a Boron-Oxygen-Carbon bond to be made usable. In order to make this C-O-B bond, our group has been reacting Sodium-boro-hydride (NaBH4), with Poly-ethylene glycol-mono-ethyl-ether (PEGMEE), in a solvent of Tetra- hydro-furan (THF), to form Tetra-ethylene-glycol-ether-borate (Our Borate product, with a C-O-B bond). We have conducted a variety of runs using similar chemical ratios at different temperatures, as well as with different glycol chains. A shlenk line has been used to prevent our borate product from hydrolyzing with the water in the air, and we use NMR spectroscopy to verify that our borate product has been formed. Currently, we have used Carbon and Hydrogen NMR on eleven of our borate product samples, and will use Boron NMR in the near future.

Nanodiamonds, Borate Products, and NMR

Advisor: Dr. Abraham Wolcott

Authors: Jesse Hnatek,  Ikram Laaguidi