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. 2009 Mar;3(2):242–252. doi: 10.1177/193229680900300204

Table 2.

Comparison of Photobleaching Tendency of Common Organic and Nanoparticle Fluorophoresa

Fluorescent probe Photobleaching rate constant (h-1) Fluence (mW/cm2) Nominal sensor lifetime
IR-Dye 78-CA32 250.92 600 3.2 s
Cy532 20.52 600 39.1 s
Indocyanine Green31 0.0412 28 5.4 h
Type II NIR QD32 0.0827 600 2.7 h
SWNT33 0 1.0 × 106 α
a

Estimated optical sensor device lifetime is calculated from Equation (2).