The synthetic droplets contain the enzyme urease which catalyzes the breakdown of urea into ammonia, which has a high pH-value. Droplets migrate due to the pH gradient, from low to high, because of ...

Transporting droplets on solid surfaces at high speed and long distance, even against gravity, without additional force has been a formidable task. But a research team comprising scientists from City ...

(Nanowerk News) Scientists at the U.S. Naval Research Laboratory (NRL) have moved liquid droplets using long chemical gradients formed on graphene. The change in concentration of either fluorine or ...

Magnetic oil droplets with switchable rolling and swimming modes enable adaptive navigation, particle transport, and control in chemically varied environments. (Nanowerk Spotlight) Artificial ...