Figure 1. Schematic diagram of the racemic metasurface. (a) Arbitrary polarization-wavefront conversion. (b) Racemic "super-units". Chirality is one of the fundamental phenomena widely present in ...

Some research shows a new drug called ketamine is effective in the treatment of depression. Ketamine is available in two forms: Esketamine and racemic ketamine. Racemic ketamine (used in ketamine ...

Making carbon–carbon bonds is hard. Linking racemic mixtures of two alkyls while simultaneously controlling the stereochemistry of both ends of the product is nigh on impossible. Now Gregory Fu, ...

THE discovery of racemic acid by Karl Kestner or Koestner, a chemical manufacturer at Thann, in the Vosges, and the elucidation of its relationship to ordinary tartaric acid, more especially by ...