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Water-soluble porphyrin-polyethylene glycol conjugates with enhanced cellular uptake for photodynamic therapy

  • Won Jin Kim
  • , Min Soo Kang
  • , Hwan Kyu Kim
  • , Youngtak Kim
  • , Taihyun Chang
  • , Tymish Ohuchanskyy
  • , Paras N. Prasad
  • , Kwang Sup Lee
  • Hannam University
  • SUNY Buffalo
  • Korea University
  • Pohang University of Science and Technology

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

Water soluble porphyrins were designed and prepared by Williamson ether synthesis reaction between tetrakis(p-bromomethylphenyl)porphyrin and polyethylene glycol (PEG) for photodynamic therapy. The quanturrj yields for the generation of singlet oxygen of tetra-polyethylene glycol branched porphyrin shows above 80% in D 2O. Luminescence of singlet state oxygen was observed from D 2O solution under the single-photon excitation at 514 nm. In vitro test, cellular uptake efficiency has been enhanced by simple modification of molecular structure through changing the number of PEG unit Jithout any support such as polymer-encapsulated inorganic nanoparticles.

Original languageEnglish
Pages (from-to)7130-7135
Number of pages6
JournalJournal of Nanoscience and Nanotechnology
Volume9
Issue number12
DOIs
StatePublished - Dec 2009

Keywords

  • Bio-imaging
  • Photodynamic therapy
  • Porphyrin derivatives
  • Singlet oxygen generation

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