Conjugated-Polyelectrolyte-Grafted Cotton Fibers Act as “Micro Flypaper” for the Removal and Destruction of Bacteria

We demonstrate herein a method for chemically modifying cotton fibers and cotton-containing fabric with a light-activated, cationic phenylene–ethynylene (PPE-DABCO) conjugated polyelectrolyte biocide. When challenged with Pseudomonas aeruginosa and Bacillus atropheaus vegetative cells from liquid su...

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Bibliographic Details
Published in:ACS applied materials & interfaces 2011-08, Vol.3 (8), p.2932-2937
Main Authors: Ista, Linnea K, Dascier, Dimitri, Ji, Eunkyung, Parthasarathy, Anand, Corbitt, Thomas S, Schanze, Kirk S, Whitten, David G
Format: Article
Language:English
Subjects:
Anti-Infective Agents - chemistry
Anti-Infective Agents - pharmacology
Bacillus - drug effects
Bacteria - drug effects
Cotton Fiber
Electrolytes - chemistry
Light
Piperazines - chemistry
Polymers - chemistry
Polymers - pharmacology
Pseudomonas aeruginosa - drug effects
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Summary:We demonstrate herein a method for chemically modifying cotton fibers and cotton-containing fabric with a light-activated, cationic phenylene–ethynylene (PPE-DABCO) conjugated polyelectrolyte biocide. When challenged with Pseudomonas aeruginosa and Bacillus atropheaus vegetative cells from liquid suspension, light-activated PPE-DABCO effects 1.2 and 8 log, respectively, losses in viability of the exposed bacteria. These results suggest that conjugated polyelectrolytes retain their activity when grafted to fabrics, showing promise for use in settings where antimicrobial textiles are needed.
ISSN:1944-8244
1944-8252
DOI:10.1021/am200820a