Figure 1.

(a) Temperature-dependent decrease of turbidity between 10 and 60 °C of ATP/PLys coacervates prepared at different salt concentrations. (b)–(d) Bright-field microscope images of ATP/PLys coacervate droplets at a salt concentration of 0.22 M, showing the effect of their dissolution and formation triggered by varying the temperature: (b) droplets at the starting temperature of 10 °C, (c) when the temperature is increased to 60 °C at a rate of 2.5/°C droplets are completely dissolved and the solution is clear, and (d) when the temperature is decreased to 10 °C at the same rate droplets are visible again.