Surfactants are compounds that lower the surface tension between two substances, such as a liquid and a solid or a liquid and a gas. They are commonly used in a variety of applications, including cleaning products, personal care products, and industrial processes. Research in the field of surfactants focuses on studying their properties, behavior, and applications in various industries. This includes investigating new surfactant materials with improved performance, understanding the mechanisms of surfactant action, and exploring environmentally friendly alternatives to traditional surfactants. Surfactant research is important for developing more effective and sustainable products and processes, as well as gaining a better understanding of the fundamental science behind surface interactions and interfacial phenomena.