Light-activated covalent coating of cotton with bactericidal hydrophobic polycations.
A methodology is developed and validated whereby a cotton fabric is impregnated with a photosensitive hydrophobic N-alkyl-polyethylenimine, followed by its covalent immobilization triggered by ultraviolet light. The resultant fabric efficiently kills on contact waterborne pathogenic bacteria E. coli and S. aureus.
Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States.
Bryan B
BB
Hsu
Alexander M
AM
Klibanov
D000900:Anti-Bacterial Agents / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology; D032561:Cotton Fiber; D004926:Escherichia coli / Q000254:growth & development*; D057927:Hydrophobic and Hydrophilic Interactions; D010777:Photochemistry / Q000379:methods; D011094:Polyethyleneimine / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology; D013211:Staphylococcus aureus / Q000254:growth & development*; D014466:Ultraviolet Rays
D000900:Anti-Bacterial Agents; D011094:Polyethyleneimine