Reaction cascade in the cell (IMAGE) Swiss Nanoscience Institute, University of Basel Caption The researchers used the newly developed microfluidic platform to produce three different types of vesicles with a uniform size but different cargoes: β-galactosidase (red vesicle), glucose oxidase (green vesicle) or horseradish peroxidase (blue). The water-soluble enzymes gradually convert the starting product into the final colored product Resorufin, which -- like all of the intermediates -- enters the surrounding solution via selective channels in the vesicle membranes. Credit Department of Chemistry, University of Basel Usage Restrictions only when credit is named License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.