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Table 6 Optical absorption of porphyrins and E-SWCNT

From: The application of titanium dioxide, zinc oxide, fullerene, and graphene nanoparticles in photodynamic therapy

Compoundsa Absorption bands (nm)b
POR 521, 556, 587, and 641
MYR 530 and 570
VER (commercial, reference) 575, 630, and 695
E-SWCNT 572 and 992c
  1. POR meso-tetrakis(4-pyridyl)porphyrin tosylate salt, MYR meso-tetrakis(N-myristyl-4-pyridinium)porphyrin tosylate salt, VER verteporfin, E-SWCNT chirality-enriched (6,5) single-walled carbon nanotube
  2. aPorphyrin aqueous solutions at 55 μM and aqueous suspension of E-SWCNT
  3. bFor all porphyrins, another weak band can be observed from 900 to 1000 nm
  4. cBands attributed to E22 and E11 optical transitions (Weisman and Bachilo 2003)