Jung, Jae Hee; Lee, Jung Eun; Bae, Gwi-Nam
Use of electrosprayed Sophora flavescens natural-product nanoparticles for antimicrobial air filtration
Teil von
  • Journal of aerosol science, March 2013, Vol.57, pp.185-193
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Previously, we demonstrated that electrospraying, driven by high-intensity electric fields, can be used to generate stable antimicrobial nanoparticles continuously from ethanolic extracts of natural plant products. In this study, we evaluated the performance of antimicrobial air filters made by these electrosprayed natural-product nanoparticles. As a natural antimicrobial suspension, an ethanolic extract of Sophora flavescens Ait. was sprayed in steady cone-jet mode using our specially designed electrospray system (Jung et al., 2011b). Natural-product nanoparticles with a bimodal size distribution were electrosprayed and deposited continuously onto the surfaces of air filters at various concentrations. The physical (filtration efficiency, pressure drop, and fiber morphology) and biological (antimicrobial efficacy against airborne Staphylococcus epidermidis) characteristics were evaluated. Consequently, although the filter pressure drop increased with the amount of nanoparticles...
ISSN: 0021-8502
ISSN: 1879-1964
DOI: 10.1016/j.jaerosci.2012.09.004

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