In today’s societies, the word “diamond” brings to
mind a series of images. It entails stories of strength, wealth,
and status. But strip away these associations, and the scientific
uses of the material are revealed. Diamonds are transparent,
extremely rigid, and don’t pose any danger to living tissue.
Recently, researchers have started growing ultra-thin
polycrystalline diamond films in laboratories. These films, which
have many of the properties of diamond gems, could have a number of
biomedical and sensor applications. Furthermore, as they are made
from carbon, they don’t require any expensive or
difficult-to-obtain materials.