Toward droplets displaying life-like interaction behaviors

Developments in synthetic biology usually bring the conception of individual artificial cells. A key feature of living systems is, however, the interaction between individuals, in which living units can interact autonomously and display a role differentiation such as the case of entities chasing each other. On the other hand, droplets have become a very useful and exciting medium for modern microengineering and biomedical technologies. In this Perspective, we show a brief discussion-outlook of different approaches to recreate predator-prey interactions in both swimmer and crawling droplet systems toward a new generation of synthetic life with impact in both fundamental insights and relevant applications.

Automated summary

Developments in synthetic biology often involve the creation of individual artificial cells. However, an important aspect of living systems is the interaction between individuals, where living units can autonomously interact and display role differentiation, such as in the case of entities chasing each other. Additionally, droplets have become a valuable and exciting medium in modern microengineering and biomedical technologies. In this Perspective, we provide a brief discussion and outlook on different approaches to recreate predator-prey interactions in both swimmer and crawling droplet systems, aiming for a new generation of synthetic life with significant implications for fundamental insights and practical applications.