Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 1, Issue 1, Pages 48-52Publisher
AMER CHEMICAL SOC
DOI: 10.1021/am800096q
Keywords
biocide; conjugated polymer; singles oxygen; polyelectrolyte capsule; confocal microscopy
Funding
- Defense Threat Reduction Agency [W911NF-07-1-0079]
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Microcapsules consisting of alternating layers of oppositely charged poly(phenylene ethynylene)-type conjugated polyelectrolytes (CPEs) were prepared via layer-by-layer deposition onto MnCO3 template particles followed by dissolution of the template particles using an ethylenediaminetetraacetate solution. The resulting microcapsules exhibit bright-green fluorescence emission characteristics of the CPEs. Strong antimicrobial activity was observed upon mixing Of polyelectrolyte capsules with Cobetia marina or Pseudomonas aeruginosa followed by white-light irradiation. It was demonstrated that the materials act as highly effective light-activated micro Roach Motels with greater than 95% kill after exposure to similar to 1h of white light.
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