Jump to main content
Jump to site search

Issue 30, 2016
Previous Article Next Article

Unravelling the mechanisms of reactive oxygen species formation in nanohybrid systems of porphyrins and enriched (6,5) single-walled carbon nanotubes for photosensitization

Author affiliations

Abstract

Nanohybrids of enriched (6,5) single-walled semiconducting carbon nanotubes (E-SWCNTs) and porphyrin can be used synergistically as photodynamic therapy (PDT) agents. The efficiency of different porphyrins within the nanohybrids was investigated and compared with results obtained from porphyrins in previous studies. Reactive oxygen species singlet oxygen 1O2 and for the first time hydroxyl radical ˙OH generation by the nanohybrids under illumination were detected by electron paramagnetic resonance using spin trapping molecules TEMP and PBN. Based on the analysis, we improve the modelling of charge transport within the nanohybrids, which is also detected by Raman scattering. It is shown that the 5,10,15,20-tetrakis(4-trimethylammoniumphenyl)porphyrin [H2TTMAPP(OTs)4] and E-SWCNT form very efficient nanohybrids for PDT applications in the visible spectral range.

Graphical abstract: Unravelling the mechanisms of reactive oxygen species formation in nanohybrid systems of porphyrins and enriched (6,5) single-walled carbon nanotubes for photosensitization

Back to tab navigation

Supplementary files

Article information


Submitted
17 May 2016
Accepted
05 Jul 2016
First published
05 Jul 2016

Phys. Chem. Chem. Phys., 2016,18, 20459-20465
Article type
Paper

Unravelling the mechanisms of reactive oxygen species formation in nanohybrid systems of porphyrins and enriched (6,5) single-walled carbon nanotubes for photosensitization

C. S. Monteiro, D. C. Ferreira, G. A. M. Sáfar, R. N. Gontijo, C. Fantini, D. C. S. Martins, Y. M. Idemori, M. V. B. Pinheiro and K. Krambrock, Phys. Chem. Chem. Phys., 2016, 18, 20459
DOI: 10.1039/C6CP03366K

Social activity

Search articles by author

Spotlight

Advertisements