Effect of bovine serum albumin and single walled carbon nanotube on the photophysical properties of zinc octacarboxy phthalocyanine

Spectrochim Acta A Mol Biomol Spectrosc. 2014:121:81-7. doi: 10.1016/j.saa.2013.10.064. Epub 2013 Oct 25.

Abstract

This work reports on the photophysical parameters of the conjugate between zinc octacarboxy phthalocyanine (ZnOCPc) and bovine serum albumin (BSA) represented as ZnOCPc-BSA (1) which was further adsorbed onto single walled carbon nanotubes (SWCNT) represented as (ZnOCPc-BSA-SWCNT 2). ZnOCPc (without BSA) was also adsorbed on SWCNT represented as ZnOCPc-SWCNT (3). The presence of BSA resulted in the increase in singlet oxygen quantum yield (ΦΔ) for 1 (at ΦΔ=0.44) and 2 (at ΦΔ=0.41) compared to ΦΔ=0.21 for ZnOCPc alone. For complex 3 which did not contain BSA singlet oxygen quantum yield decreased.

Keywords: Bovine serum albumin; Octacarboxy phthalocyanine; Photophysics; Single walled carbon nanotubes.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Absorption
  • Animals
  • Cattle
  • Coordination Complexes / chemical synthesis
  • Coordination Complexes / chemistry*
  • Indoles / chemical synthesis
  • Indoles / chemistry*
  • Isoindoles
  • Nanotubes, Carbon / chemistry*
  • Nanotubes, Carbon / ultrastructure
  • Organometallic Compounds / chemical synthesis
  • Organometallic Compounds / chemistry*
  • Physical Phenomena*
  • Quantum Theory
  • Serum Albumin, Bovine / chemistry*
  • Singlet Oxygen / chemistry
  • Spectrometry, Fluorescence
  • Spectrophotometry, Ultraviolet
  • Spectroscopy, Fourier Transform Infrared
  • Spectrum Analysis, Raman
  • X-Ray Diffraction
  • Zinc Compounds

Substances

  • Coordination Complexes
  • Indoles
  • Isoindoles
  • Nanotubes, Carbon
  • Organometallic Compounds
  • Zinc Compounds
  • Zn(II)-phthalocyanine
  • Singlet Oxygen
  • Serum Albumin, Bovine