Luminescent Iridium(III) Complex Labeled DNA for Graphene Oxide-Based Biosensors.

  title={Luminescent Iridium(III) Complex Labeled DNA for Graphene Oxide-Based Biosensors.},
  author={Qingcheng Zhao and Yuyang Zhou and Yingying Li and Wei Gu and Qi Zhang and Jian Liu},
  journal={Analytical chemistry},
  volume={88 3},
There has been growing interest in utilizing highly photostable iridium(III) complexes as new luminescent probes for biotechnology and life science. Herein, iridium(III) complex with carboxyl group was synthesized and activated with N-hydroxysuccinimide, followed by tagging to the amino terminate of single-stranded DNA (ssDNA). The Ir-ssDNA probe was further combined with graphene oxide (GO) nanosheets to develop a GO-based biosensor for target ssDNA detection. The quenching efficiency of GO… CONTINUE READING
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