Pseudomonas aeruginosa (P. aeruginosa) colonize on most wounds and live as biofilm, which causes antibiotic resistance and wounds unhealed. To investigate the effects of 5- substituted 3, 4-dihalo-5H-furan-2-one compounds on biofilm formation of P. aeruginosa, a set of 5-(aryl-1¢-hydroxy-methyl)-or 5-(aryl-2-methylene)-3, 4-dihalo-5H-furan-2-one compounds were designed and synthesized. Their inhibitory activities on biofilm formation ...