Written by sciencedaily.com Friday, 10 December 2010 12:50
Used in the proper amounts, it can make teeth stronger and aid in the treatment of osteoporosis. When excessive amounts are consumed, however, it can be a killer—a carcinogen that causes bone, lung, and bladder cancers. The “it” is fluoride, a common additive in most American communities’ drinking water and an ingredient in the vast majority of commercially produced adult toothpastes.
Determining the level of fluoride, be it in water, consumer products or the human body, is an important and attractive challenge for scientists. To address that, a Florida State University researcher has developed a molecular sensor that changes color when a sample containing fluoride is added to it.