Table 1 Characteristics for particles tested for toxicity to Daphnia magna, including particle name, diameter and concentration.

From: Brain damage and behavioural disorders in fish induced by plastic nanoparticles delivered through the food chain

Particle

Diameter size (nm)

Concentration (g/L)

Surface charge

PS-NH2 Amino-modified

52, 53, 57, 58, 120, 180, 330

0.005, 0.010, 0.025, 0.050, 0.075, 0.10, 0.15

positive

PS-COOH Carboxylate

261, 601, 92, 160, 190, 220

0.025, 0.050, 0.075, 0.10, 0.2, 0.4

negative

PS-OSO3H Sulfonated

25, 200

0.025, 0.050, 0.075, 0.10, 0.2, 0.4

negative

PMMA

68, 140

0.025, 0.050, 0.075, 0.10, 0.2, 0.4

negative

  1. Only the PS-NH2 amino modified particles was found to be toxic to Daphnia and we therefore performed our fish study using this type of particles. 1Two different batches were tested.
Back to article page