For those who are not used yet to this rather recent concept, microchimerism refers to the presence of very low numbers of allogeneic cells in an individual. Most interest in this phenomenon has been raised after the demonstration by the group of Diana Bianchi, a researcher working previously on prenatal diagnosis, that fetal cells – present in the peripheral blood of women during pregnancy – m...

A images of tumor cells being vaporized in beams of colorful light, a video produced by the National Cancer Institute proclaims, “the science is at our fingertips.” The science being referred to, which is 80,000 times smaller than the breadth of a single ridge of skin on a human fingertip, is cancer nanotechnology. Nanotechnology, the study of science on a level the width of ten hydrogen atoms,...