A production line for uniform lipid-coated microspheres has been created by Japanese scientists. Using a microfluidic device, the team can continuously generate fluid-filled vesicles that are all the same size and all have a single lipid bilayer surrounding them, and could one day be used in drug delivery or artificial cells. Whilst lipid vesicles are used widely, problems with current production methods mean it is difficult to ensure they are all uniform in size and there is just one lipid bilayer surrounding each vesicle. Another tricky issue is developing an efficient encapsulation process, making sure the vesicle contents aren't lost during...