Figure 7
From: Toxicity of various silver nanoparticles compared to silver ions in Daphnia magna
Light microscope images of daphnia exposed to nAg1 and nAg2 colloids for 24 hours. A: control; B: live daphnia exposed to 0.002 mg/L nAg1, pigmentation can been seen under the brood chamber (circles); C: dead daphnia exposed to 0.01 mg/L nAg2; D: live daphnia exposed to 0.004 mg/L nAg1; E: live daphnia exposed to 0.002 mg/L nAg2. In images C, D, and E, small bubbles can be seen under the carapace; plus, nanoparticle aggregates can be seen on the antennae, body surface, and also in the brood chamber.