HiMedia is delivering a range of chemicals and reagents for use in the development of diagnostic lateral flow immunoassays. These chemicals and reagents have been tested for their physical, chemical and functional characteristics to improve the reliability of results. Tween® 20, For Molecular Biology is a high purity non ionic detergent used for the prevention of non specific hydrophobic interactions. It is a fundamental component in wash buffer formulation for molecular protein research testing and membrane based immunoassays.