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The Flow Focusing technology was invented
in 1994 by the researching
group of Professor Alfonso
Gañán-Calvo
(University of Seville,
Spain) and Ingeniatrics
has an exclusive license
to exploit most of the
patents related to it
(see patents).
Flow Focusing is a very versatile
microfluidic system
based on a combination
of a specific geometry
and hydrodynamic forces.
The phenomenon is characterized
by the presence of a
steady micro-jet which
is “sucked” through
a small orifice, and
eventually breaks up
into well-defined sized
droplets in the micro
and nanometric range
(see the animation).
Depending on the specific configuration
of the system and the
type of fluids used,
it is possible to obtain micro- or
nanodrops (when the
focused fluid is a simple
liquid). When these
drops get solidified
then micro- and nano-
particles
or capsules
are achieved. And when
the focused fluid is
a gas, it turns to be
micro- and nano- bubbles
or foams.
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