Nanobodies (aka single domain antibodies or VHH antibodies) are a type of antibodies derived from camelids, and are much smaller than traditional antibodies. Standard antibodies are giants by molecular standards, since each one's a conglomerate of two heavy protein chains and two light chains, intricately folded and garnished with elaborate sugars. Nanobodies, however, are relatively simple proteins about a tenth the size of human antibodies and just a few nanometers in length. After the discove… (More on Nanobodies)