Antipseudomonal activity enhancement of luminescent iridium(iii) dipyridylamine complexes under visible blue light.

Cyclometallated iridium(III) dipyridylamine complexes present antibacterial activity against P. aeruginosa, a highly resistant pathogenic bacterium. This activity is increased when the complex is conjugated to biotin, a bacterial nutrient, and a MIC of 4 mM (4 mu g mL(-1)) has been observed. The irradiation of P. aeruginosa cultures with blue LED light potentiates the anti-bacterial activities of these iridium(III) complexes when they are conjugated to a glycoside.