Tree-like giant is largest molecule ever made

 作者:余钩     |      日期:2019-03-07 06:01:09
MEET PG5, the largest stable synthetic molecule ever made. With a diameter of 10 nanometres and a mass equal to 200 million hydrogen atoms, this tree-like “macromolecule” paves the way for sophisticated structures capable of storing drugs within their folds, or bonding to a wide variety of different substances. Macromolecules abound in nature, and PG5 is about the same size as a tobacco mosaic virus. But making large molecules in the lab is tough, as they tend to fall apart. Previously, polystyrene was the largest stable synthetic molecule, at 40 million hydrogen masses. To create their molecular giant,