Photophysical and photochemical properties of a novel thiol terminated low symmetry zinc phthalocyanine complex and its gold nanoparticles conjugate

Mthethwa T. P., Tuncel S., Durmuş M., Nyokong T.

Dalton Transactions, cilt.42, sa.14, ss.4922-4930, 2013 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 42 Sayı: 14
  • Basım Tarihi: 2013
  • Doi Numarası: 10.1039/c3dt32698e
  • Dergi Adı: Dalton Transactions
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.4922-4930
  • Acıbadem Mehmet Ali Aydınlar Üniversitesi Adresli: Hayır

Özet

A novel thiol functionalized zinc phthalocyanine complex (ZnPcSH) is reported in this work. This complex was conjugated to gold nanoparticles. The photophysical and photochemical properties of the complex and the conjugate were investigated. Upon conjugation a blue shift was observed from the UV-Vis spectra. The conjugate showed a decrease in the fluorescence quantum yield and lifetime. An increase in the triplet quantum yield and lifetime was observed for ZnPcSH following conjugation to gold nanoparticles. Both ZnPcSH and its conjugate with gold nanoparticles showed high singlet oxygen quantum yields with the conjugate being higher than the Pc alone. © 2013 The Royal Society of Chemistry.