Fig. 2From: A zeta potential value determines the aggregate’s size of penta-substituted [60]fullerene derivatives in aqueous suspension whereas positive charge is required for toxicity against bacterial cellsThe graph illustrates distribution of particles size and zeta potential values of [60]fullerene derivatives in aqueous suspension. Data analysis with (a) and without (b) the negative and positive sign of the particles’ surface charge. White circles negatively charged compounds; black circles positively charged compounds.Back to article page