Table 1 Photophysical and photochemical parameters of azo-PDT, methylene blue, SiR-665 and pyro.

From: Microenvironment-triggered dual-activation of a photosensitizer- fluorophore conjugate for tumor specific imaging and photodynamic therapy

Compound

λabs (nm)

λex (nm)

λem (nm)

ΦΔc

Azo-PDT

674a, 668b

/

/

0.04b

Methylene blue

654b

–

–

0.49b

SiR-665

664a

665a

693a

–

Pyro

667b

/

/

0.63b

  1. aThe data were obtained in PBS.
  2. bThe data were measured in EtOH.
  3. cΦΔ: singlet oxygen quantum yield. For methylene blue, ΦΔ = 0.49. “/” means not detectable, and “–” means not detected.
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