In this issue, D. Astruc et al. review the synthesis and applications of anisotropic gold nanoparticles. What are their key properties and how about their toxicity? In a Minireview, L. Mi and S. Jiang discuss zwitterionic polymers that are both antimicrobial and nonfouling. The Highlight deals with ribosomal RNA 2′-O-methylation (M. Hengesbach and H. Schwalbe). In his Editorial, M. Suhm explains what “Guinness molecules” are and how to identify lowest-energy structures.
In the Communications section, B. Plietker et al. show through a spectroscopic and theoretical study of the complex ferrate [Fe(CO)3(NO)]− that this species is not what it seems to be at first glance (see picture). L. M. Campos et al. succeeded in engineering bandgaps through controlled oxidation of polythiophenes. Y. Xia et al. present a mass spectroscopic approach for probing the stability of bioorganic radicals. Y. Gimbert et al. revisit the Pauson–Khand mechanism*: Where does the CO in the final product originate from?
*An obituary of P. L. Pauson has just appeared.