“…[6] Fabrication of porous structures from either polymer [7,8] or metal [2,9] or ceramics [10] with diverse pore sizes (from nanoto micrometer range) have been explored extensively. For example, nano, micro, and macroporous polymer films have proven to be suitable for gas separation, [11] biosensing, [3] and drug release applications [12] and metal and ceramic films have been utilized as thermal barrier coatings. [1] Here, we demonstrate a simple, straightforward, inexpensive, and quick method for preparing porous polymer films using a single solvent-based film casting process.…”