New photoantimicrobial films composed of porphyrinated lipophilic cellulose esters

Porphyrinated cellulose laurate esters have been prepared in homogeneous DMA/LiCl medium by ‘one-pot, two-step’ reactions starting from cellulose, protoporphyrin IX, and lauric acid and using a TsCl/Pyridine system. The plastic films obtained after casting were shown to display photobactericidal activity against Gram positive (Staphylococcus aureus) and Gram-negative (Escherichia coli) bacteria. This new photobactericidal polymer has potential for industrial, medical, or household applications.

New photobactericidal polymers have been prepared in homogeneous medium starting from cellulose, protoporphyrin IX (PpIX), and lauric acid, using a TsCl/pyridine system. They showed photobactericidal activity against Gram-positive and Gram-negative bacteria.Figure optionsDownload as PowerPoint slide