2003
DOI: 10.1002/pola.10773
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Porphyrin‐based, light‐activated antimicrobial materials

Abstract: New light-activated antimicrobial materials with a potentially wide range of possible uses in civilian settings were synthesized by the grafting of protoporphyrin IX and zinc protoporphyrin IX to nylon fibers. These fibers were shown to be active against Staphylococcus aureus at light exposures of 10,000 lux and greater and against Escherichia coli at 60,000 lux. They were ineffective against both strains in the absence of light. At 40,000 lux, these fibers showed increased antimicrobial activity against S. au… Show more

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Cited by 96 publications
(73 citation statements)
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References 23 publications
(28 reference statements)
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“…Porphyrins located in a sol-gel matrix have also been used for pH sensing [34]. Use of porphyrin-loaded polymers in PDT has been confined to either development of nanomaterials for delivery [35] or systems aimed, ultimately, at water purification [36][37][38], with few other references in the literature to porphyrin-impregnated surfaces for use as photobactericidal agents [39][40][41]. It was in this context that p(HEMA-co-MAA) hydrogels were selected for investigation as the polymer hosts for the described porphyrin technology; MAA was included as an anionic polymer at neutral pH to interact strongly with cationic TMPyP.…”
Section: Discussionmentioning
confidence: 99%
“…Porphyrins located in a sol-gel matrix have also been used for pH sensing [34]. Use of porphyrin-loaded polymers in PDT has been confined to either development of nanomaterials for delivery [35] or systems aimed, ultimately, at water purification [36][37][38], with few other references in the literature to porphyrin-impregnated surfaces for use as photobactericidal agents [39][40][41]. It was in this context that p(HEMA-co-MAA) hydrogels were selected for investigation as the polymer hosts for the described porphyrin technology; MAA was included as an anionic polymer at neutral pH to interact strongly with cationic TMPyP.…”
Section: Discussionmentioning
confidence: 99%
“…The first antimicrobial porphyrin textiles were reported by Bozja et al [73], named as light-activated antimicrobial materials. Novel materials were synthesized by the grafting of PPIX and zinc protoporphyrin IX (Zn(II)-PPIX) to nylon fibers and their antimicrobial effectiveness tested against S. aureus and E. coli.…”
Section: Porphyrin-embedded Fabricmentioning
confidence: 99%
“…The zinc samples were more effective than the corresponding free-base. With suitable changes, these materials have been suggested to be used for privacy curtains in hospital rooms, laboratory coats for medical personnel, or other fiber or plastic surfaces within the hospital environment considering that the normal rooms' illumination is approximately 30,000 lx [73].…”
Section: Porphyrin-embedded Fabricmentioning
confidence: 99%
“…For example, it takes approximately 1 × 10 5 S. aureus to cause illness. A reduction in the number of organisms below this level prevents infection [73].…”
Section: Acrylicmentioning
confidence: 99%