Images from a scanning electron microscope (SEM) of carbon fibers made from (left) PAN, (middle) PAN/PMMA, and (right) PAN-b-PMMA. Liu's lab used PAN-b-PMMA to create carbon fibers with more ...

Fine asbestos fibers (A, B, and C) are visible under fluorescent microscopy (FM) and scanning electron microscopy (SEM). News organizations may use or redistribute this image, with proper ...