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  • A novel fluorescent polymer brushes film as a device for ultrasensitive detection of TNT
  • 来源:杨旭东讲师个人网站 2016-04-05
  • In this work, we first report the application of fluorescent polymer brushes film as a device for ultrasensitive
    and selective detection of TNT. As positively charged fluorescent molecules of quaternary ammonium
    tetraphenylethylene derivatives (d-TPE) were self-assembled on the brushes of poly(acrylic acid) (PAA) by
    coulomb forces, we obtained a novel fluorescent polymer brushes film with excellent photoluminescent
    properties, and the emission could be quantitatively and sensitively responsive to 2,4,6-trinitrotoluene
    (TNT) due to the electron transfer between d-TPE and TNT. The limit of detection of TNT was
    established to be 0.1 ppb in water. The fluorescent device could also be used repeatedly for TNT
    detection, which indicated a promising application in trace explosive detection.
  • [来源:中国聚合物网]
  • 了解更多请进入: 杨旭东讲师个人网站
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