Phosphoryl choline-grafted water-soluble carbon nanotube

Water-soluble property is the precondition of biomedical evaluation and application of carbon nanotube (CNT). Novel water-soluble CNT was synthesized in this letter by grafting phosphoryl choline (PC) onto multi-wall CNTs. Utilizing FTIR, XPS, TGA and TEM, the title CNTs were characterized and it was found that the target products could facilely dissolve in water.