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. Author manuscript; available in PMC: 2011 Jan 6.
Published in final edited form as: Nanotechnology. 2010 Jul 5;21(29):295101. doi: 10.1088/0957-4484/21/29/295101

Figure 1.

Figure 1

Time dependent response of MDA-231-MB to gold nanoparticles MDA-231-MB cells were exposed to 1.9 nm gold particles or normal medium for periods from 15 min to 8 h then irradiated with 4 Gy or sham irradiated. Symbols represent: nanoparticle control (○ solid line); 4 Gy x-ray irradiation (▲ dotted line); gold nanoparticles in combination with 4 Gy x-ray irradiation (● dashed line). Surviving fractions were normalized to untreated control cells in each of the experiments. Data points show the mean of at least three independent experiments ± SEM.