The spongelike structure of metal organic frameworks (MOFs) allows these polymers to possibly carry and deliver a range of therapeutic compounds. Now, researchers treated a chromium-containing MOF with a dose of acetic acid, more concentrated than in vinegar, to expand its pore size and surface area. The puffed-up MOFs held more ibuprofen or chemotherapy drug compared to the original version and had improved performance as a potential drug-delivery vehicle.
