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Excitation energy transfer in ruthenium (II)-porphyrin conjugates led to enhanced emission quantum yield and 1O2 generation

  • Jie Pan
  • , Lijun Jiang
  • , Chi-Fai Chan
  • , Tik-Hung Tsoi
  • , Kwok-Keung Shiu
  • , Daniel W.J. Kwong
  • , Wing-Tak Wong
  • , Wai-Kwok Wong
  • , Ka-Leung Wong

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

Abstract

Porphyrins are good photodynamic therapy (PDT) agents due to its flexibility for modifications to achieve tumor localization and photo-cytotoxicity against cancer. Yet they are not perfect. In a Ru(polypyridyl)-porphyrin system, the Ru(polypyridyl) moiety improves the water solubility and cell permeability. Consider the similar excited state energies between Ru(polypyridyl) and porphyrin moieties; a small perturbation (e.g. Zn(II) metalation) would lead to a marked change in the energy migration process. In this work, we have synthesized a series of porphyrins conjugated with Ru(polypyridyl) complexes using different linkers and investigated their photophysical properties, which included singlet oxygen quantum yield and their in vitro biological properties, resulting from linker variation and porphyrin modification by Zn(II) metalation. © 2016
Original languageEnglish
Pages (from-to)89-95
JournalJournal of Luminescence
Volume184
DOIs
Publication statusPublished - 1 Apr 2017
Externally publishedYes

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Funding

This work was funded by grants from The Hong Kong Research Grants Council (HKBU 203112), EPSRC, HKBU-HK PolyU Joint Research Programme (RC-ICRS/15-16/02F-WKL02F-WKL and RC-ICRS/15-16/02D-KWJ) and Prospective Joint Research Project (BY2015042-01).

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 3 - Good Health and Well-being
    SDG 3 Good Health and Well-being

Research Keywords

  • Fluorescence probe
  • Luminescent material
  • Photodynamic therapy
  • Porphyrin
  • Ruthenium

RGC Funding Information

  • RGC-funded

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