(c) Overview of our strategy to first depolymerize native lignin and then repolymerize the resulting oligomers using dynamic covalent cross-linkers. Credit: ACS Central Science (2022).

A new book details how lignin once protected algae from UV radiation, then later in evolutionary time became a structural support for trees. The following is an excerpt from When the Earth Was Green: ...

An unusual intramembrane cleavage generates various Aβ species, only one of which (the longest variant) is particularly prone to form potentially toxic oligomers. Soluble oligomeric assemblies of ...