The present invention discloses a nanoimprint apparatus and method useful in the cost-effective mass production of nanostructures over large areas on various substrates or surfaces, especially suitable for non-flat substrates or curved surfaces. The controller stores the data in a manner such that the pages making up each page stripe include a plurality of data pages and at least one data protection page and the pages making up each auxiliary protection stripe include a plurality of data pages and an auxiliary protection page. The porous structure may comprise a first side coupled to the reservoir and a second side to couple to the patient to release the therapeutic agent. The top ceramic thermal barrier coating has a nominal thickness t.