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Invisible to the naked eye, the objects are 12 nm (12 billionths of a meter) wide. That's big for a nanoscale molecule. It's huge, said Hla, an associate professor of physics and astronomy. This man-made fractal molecule resembles a Star of David.This man-made structure is one of the first nanoscale, non-branched fractal molecules ever produced, said Newkome, who is lead author on the study's paper (published online today by the journal Science).ractals are irregular curves or shapes that retain the same pattern when reduced or magnified. The molecule in the study, for example, is composed of six rings, which are made up of six smaller rings, and so on, Hla said. Snowflakes, broccoli florets or tree bark would be just a few examples from nature.
Polymers are molecules that consist of a long, repeating chain of smaller units called monomers. They have the highest molecular weight among any molecules, and may consist of billions of atoms.Human DNA is a polymer with over 20 billion constituent atoms.Proteins, made up of amino acids, and many other molecules that make up life are polymers. They are the largest and most diverse class of known molecules and even include plastics.uman DNA is a polymer with over 20 billion constituent atoms. Proteins, made up of amino acids, and many other molecules that make up life are polymers. They are the largest and most diverse class of known molecules and even include plastics.