Perfluamine (Perfluorotripropylamine), a hydrophobic carrier fluid, is used in the surface modification of droplet polymeric microfluidic devices. Perfluamine has a role as a blood substitute[1][2].
[1]. Subramanian B, et al. Surface modification of droplet polymeric microfluidic devices for the stable and continuous generation of aqueous droplets. Langmuir. 2011 Jun 21;27(12):7949-57. [2]. Spence RK, et al. Perfluorocarbons as blood substitutes: the early years. Experience with Fluosol DA-20% in the 1980s. Artif Cells Blood Substit Immobil Biotechnol.