Biofilms cause resistance to many antimicrobial agents. The result of indwelling biofilms on medical devices is recurring, untreatable infections and medical device failure. To overcome chronic and recurrent infections, it is important to detect microbial biofilms and determine their antimicrobial susceptibility. In addition, identifying genes involved in biofilm formation and measuring gene expression due to anti-biofilm and antibacterial activity of agents may be beneficial in biofilm research.  More information: biofilm inhibition assays