Optical behaviors of ZnO-porphyrin conjugates and their potential applications for cancer treatment

Yuanfang Liu, Yongbin Zhang, Shaopeng Wang, Carey Pope, Wei Chen

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ZnO nanoparticles were synthesized and conjugated to the porphyrin derivative, meso-tetra (o-amino phenyl) porphyrin (MTAP). Energy transfer from the ZnO nanoparticles to MTAP was investigated and the energy transfer rate was measured to be as high as 83%. Compared with MTAP and ZnO alone, ZnO-MTAP conjugates have low toxicity under dark conditions but high phototoxicity in the human ovarian carcinoma cell line NIH:OVCAR-3. The results indicate that ZnO-MTAP conjugates may be useful in photodynamic therapy for deep cancer treatment.

Original languageEnglish (US)
Article number143901
JournalApplied Physics Letters
Issue number14
StatePublished - Apr 21 2008


ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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