Figure 2.

Droplets starting at different morphologies, namely, H/F/W, Janus, and F/H/W functionalized with cysteine engineered rcSso7d. The continuous phase was exchanged to tune the morphology into the Janus format, followed by the addition of 10 μL of 1 mg mL⁻¹ (0.36 μM) streptavidin. Note that a higher degree of agglutination is observed with droplets prepared at the higher Tween 20 concentrations. The scale bars in the optical micrographs are 100 μm.