In this issue, G. Nyström et al. review the chemistry, properties, and applications of biopolymer aerogels and foams. How can they be optimized e.g., for CO₂ capture, catalysis, or drug delivery? J. Chen et al. review the catalysis of carbon dioxide photoreduction on nanosheets. How can improved materials be developed? In a Minireview, S.-Z. Qiao et al. discuss the hydrogen evolution reaction in alkaline solution.

In the Communications section, Z. Cong et al. present dual-functional small molecules for the generation of an efficient cytochrome P450BM3 peroxygenase (see picture). G. H. Robinson et al. describe stable boron dithiolene radicals, and G. Maayan et al. report on a self-assembled cyclic structure from copper(II) peptoids.

• Angewandte Chemie 26/2018: Capture and Delivery,
  Angew. Chem. Int. Ed. 2018, 57 (26).