Silver ink, SEM
Colored scanning electron micrograph (SEM). Small balls of silver embedded in a carrier (cyan) are seen on the surface of a newspaper (not visible). A paper based product typically contains 90รข99% cellulose fibers which are the primary structural element and the most important component influencing Magnification: x3000 when printed at 10 centimetres wide, by STEVE GSCHMEISSNER/SCIENCE PHOTO LIBRARY
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