Nail polish can be harsh on skin and nails. Acetone can also remove artificial nails made of acrylic or cured gel. A less harsh nail polish remover is ethyl acetate, which often also contains isopropyl alcohol. Ethyl acetate is usually the original solvent for nail polish itself. Acetonitrile has been used as a nail polish remover, but it is more toxic and potentially more carcinogenic than the aforementioned options. It has been banned in the European Economic Area for use in cosmetics since 17 March 2000. The health risks associated with nail polish are disputed. According to the U.S. Department of Health
Solvent casting and particulate leaching Solvent casting and particulate leaching In solvent casting and particulate leaching (SCPL), a polymer is dissolved in an organic solvent. Particles, mainly salts, with specific dimensions are then added to the solution. The mixture is shaped into its final geometry. For example, it can be cast onto a glass plate to produce a membrane or in a three-dimensional mold to produce a scaffold. When the solvent evaporates, it creates a structure of composite material consisting of the particles together with the polymer. The composite material is then placed in a bath which dissolves the particles, leaving behind a porous structure.