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. 2012 Feb;85(1010):101–113. doi: 10.1259/bjr/59448833

Figure 5.

Figure 5

The influence of the free radical scavenger tris(hydroxymethyl)aminomethane on DNA plasmid-bound gold nanoparticle (GNP) radiosensitisation. Enhancement increases with concentration as more water radicals are scavenged. At concentrations >100 mM, enhancement falls as GNP-produced radicals are also scavenged. Reproduced with permission from Carter et al [57].