Phospholipid bilayers are the molecular basis of biological membranes that surround all living organisms, but also other biologically relevant objects such as liposomes or extracellular particles. Many important processes, such as oxidative stress, infection, and metabolism, take place at this interface. It is therefore a good idea to develop methods for this area, which naturally starts with synthetic bilayers as a readily available model of a biological membrane and then proceeds to membranes created by biological processes, e.g. membranes that enclose particles or cells.