There is a lot of technology in this title: “Reactive Inkjet Printing of Biocompatible Enzyme Powered Silk Micro-Rockets.” What it means is that researchers at the University of Sheffield have used a 3-D inkjet printer to implant reactive enzymes in a silk scaffold. In a fluid environment, such as human plasma, chemical reactions provide propulsion (gas bubbles) for these 300 micro particles, turning them into “micro-rockets,” possibly for drug delivery.       MORE