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missions. The jellyfish robot, dubbed Robojelly, can utilize hydrogen
and oxygen gas in water as fuel so that the underwater robot does not
need batteries or electricity. During the journey in the sea this robot
only disposes of waste in the form of water.
Figure 3. Robojelly
Source: www.nextbigfuture.com
The robojelly consists of two bell-like structures made of
silicone that fold like an umbrella. The umbrellas are connected to
each other so that they function like muscles that contract to move.
These muscles are made of an alloy of nickel and titanium wrapped
in carbon nanotubes and coated with platinum. When a mixture of
hydrogen and oxygen meets platinum, it produces heat and water
vapor. This heat then causes contractions that move the muscular
apparatus and pump the water out in one cycle. Therefore, the robot
can stay underwater for a very long time and refuel itself while it is
under surveillance.
e. Cosmetics Sector
The manufacture of cosmetics with nanoparticles or
commonly called nanocosmetics can maximize the performance of
the active substances contained in these cosmetics. With a very small
size, the active substance is easier to enter into the lowest layers of
