This spiral-shaped Treponema pectinovorum Bacteria causes the dental disease known as periodontitis, a condition that involves swelling and inflammation of the gums and infection of the bones and ligaments that support the teeth. SEM X40,000.
By: Dr. T. J. Beveridge
By: STEVE GSCHMEISSNER
Science Photo Library
Sandia researcher prepares human saliva samples for analysis that will be conducted using Sandia's lab-on-a-chip clinical diagnostic instruments. A "lab on a chip" refers to an entire laboratory on an area the size of a computer chip, requiring only minute