Certain amphiphilic block copolymer micelles display a similar behavior as surfactant micelles. It is an anionic surfactant used in many cleaning and hygiene products. Quaternized fatty ammonium compounds are used as a surfactant or fabric softeners. Inverse emulsion polymerization requires water, monomers, and a surfactant. Polysorbate 80 is a nonionic surfactant and emulsifier often used in foods and cosmetics. Alternatively, acidification will destabilize a dispersion with a carboxylic acid surfactant. The polymers that serve as plasticizers exhibit surfactant properties. PFNA is the largest perfluorinated carboxylic acid surfactant. At very low concentrations of the surfactant, only monomers are present in solution. Alternatively, the polymerization is conducted using a surfactant such as PFOS. The slime also contains lipids and the surfactant nonylphenol. Chlorhexidine may come mixed in alcohol, water, or surfactant solution. The DPPC is the strongest surfactant molecule in the pulmonary surfactant mixture. Formulations that include the surfactant POEA were banned. The head of an ionic surfactant carries a net positive, or negative charge.