What makes a molecule amphiphilic ?
Janus - faced molecule , used to describe a molecule whose effects on organisms can vary between beneficial and toxic Janus particles , amphiphilic particles having one half hydrophilic and the other half hydrophobic Janus Experiments , a series of experiments on radio - sensitivity in mice and dogs Janus kinase , an intracellular signaling molecule ; component of the JAK - STAT signal system