Ultrafiltration - methods, Nanoparticles - ultrastructure, Water - chemistry, Ciprofloxacin - chemistry, Water Purification - methods, Ciprofloxacin - isolation & purification, Graphite - chemistry, Water Pollutants, Chemical - chemistry, Chemical - isolation & purification, Hydrogels - chemistry, Nanopores - ultrastructure, Anti-Bacterial Agents - chemistry...