You just gotta laugh: "As the nanoparticles are relatively stable in liquid medium they could be developed into a mouthwash solution in the near future."
http://www.sciencedaily.com/releases/2012/03/120308062553.htm?utm_source=feedburner&utm_medium=email&utm_campaign=Feed%3A+sciencedaily%2Fhealth_medicine+%28ScienceDaily%3A+Health+%26+Medicine+News%29 David
