1. Scientists from Hokkaido University and the University of Melbourne have developed a flexible technique for producing nanoparticles using enzymes, dubbed 'bio-catalytic nanoparticle shaping' (BNS). 2. This method allows for precise control over the size and shape of nanoparticles, with potential applications in high-density data storage, solar cells, and targeted drug delivery. 3. The technology leverages naturally occurring enzymes to selectively break chemical bonds in molecular assemblies, creating a diverse array of nanoparticles with unique properties.