Figure 6B optical microscopy data, extracted from ImageJ as described in detail in the manuscript. The three datasets are for: a) 50 mM L-Asp only (measured in triplicate); b) 50 mM L-Asp + 15 mM D-Asp (measured in triplicate) and c) 50 mM L-Asp + 50 mM D-Asp (measured in duplicate).