Porphyrin assembly on beta-cyclodextrin for selective sensing and detection of a zinc ion based on the dual emission fluorescence ratio.

@article{Yang2003PorphyrinAO,
  title={Porphyrin assembly on beta-cyclodextrin for selective sensing and detection of a zinc ion based on the dual emission fluorescence ratio.},
  author={Ronghua Yang and Ke'an Li and Kemin Wang and Fenglin Zhao and Na Li and Feng Liu},
  journal={Analytical chemistry},
  year={2003},
  volume={75 3},
  pages={612-21}
}
In the present paper, a new cyclodextrin/porphyrin supramolecular sensitizer for zinc ion has been proposed based on the porphyrin dual fluorescence emission ratio. In aqueous solution, meso-tetraphenylporphyrin shows weak fluorescence, while in the presence of alkylated beta-cyclodextrin, it exhibits significant fluorescence enhancement by forming a cyclodextrin/porphyrin inclusion complex. Furthermore, the formation of a supramolecular complex causes a remarkable increase of the porphyrin… CONTINUE READING