Figure 3.
IM-MS conformational space plots showing the regions occupied by (A) lipids and peptides; (B) subclasses of antibiotics; (C) compounds of various densities; and (D) corticosteroid and nonsteroidal anti-inflammatory drugs (NSAIDs). Structures shown: cephalexin is a cephalosporin antibiotic, benzalkonium C12 is an amphiphilic ammonium, clioquinol is an antifungal drug, ibuprofen is a common NSAID, and cortisone is a common corticosteroid.