A Novel 1,8-Naphthalimide-Based “Turn-on” Fluorescent Sensor for Fe3+

  • Tengxuan Tang
  • Wenbo Guo
  • Yuping Zhang
  • Dongmei XuEmail author


A new fluorescent sensor was designed and synthesized from 5-nitro-1,2-dihydroacenaphthylene, n-butyl amine and 1-(2-pyridyl)piperazine. In DMF/H2O (3:1, v/v), the sensor showed excellent selectivity and sensitivity to Fe3+ with fast fluorescence enhancement and good anti-interference ability. The maximal fluorescence intensity was linearly proportional to the Fe3+ concentration (60–140 μM). The detection limit was 81 nM. The sensor could work in a pH span of 5.0–8.0. A 1:1 complex was formed reversibly between the sensor and Fe3+.


1,8-Naphthalimide Fluorescent sensor Fe3+ 



This work was supported by the National Natural Science Foundation of China (21074085), the Priority Academic Program Development of Jiangsu Higher Education Institutions, and the State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials.

Supplementary material

10895_2019_2354_MOESM1_ESM.doc (282 kb)
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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  • Tengxuan Tang
    • 1
  • Wenbo Guo
    • 1
  • Yuping Zhang
    • 1
  • Dongmei Xu
    • 1
    Email author
  1. 1.College of Chemistry, Chemical Engineering and Materials ScienceSoochow UniversitySuzhouChina

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