Droplet,
Journal Year:
2024,
Volume and Issue:
3(2)
Published: March 25, 2024
Abstract
Droplets
and
bubbles
have
a
wide
range
of
applications
in
industry,
agriculture,
daily
life,
their
controllable
manipulation
is
significant
scientific
technological
importance.
Versatile
magnetically
responsive
strategies
been
developed
to
achieve
precise
control
over
droplets
bubbles.
To
manipulate
nonmagnetic
or
with
magnetic
fields,
the
presence
medium
indispensable.
Magnetic
additives
can
be
added
surface
interior
bubbles,
allowing
for
on‐demand
by
direct
actuation.
Alternatively,
elastomer
substrates
used
actuate
controlling
deformation
microstructures
on
through
stimulation.
Another
strategy
based
untethered
devices,
which
enables
free
mobility,
facilitating
versatile
flexible
manner.
This
paper
reviews
advances
from
perspective
An
overview
different
classes
medium,
along
respective
corresponding
droplet/bubble
methods
principles,
first
introduced.
Then,
biomedicine,
microchemistry,
other
fields
are
presented.
Finally,
remaining
challenges
future
opportunities
related
regulating
behavior
using
discussed.
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
36(21)
Published: Feb. 16, 2024
Controllable
droplet
manipulation
is
crucial
in
diverse
scientific
and
engineering
fields.
Traditional
electric-based
methods
usually
rely
on
commercial
high-voltage
(HV)
power
sources,
which
are
typically
bulky,
expensive,
potentially
hazardous.
The
triboelectric
nanogenerator
(TENG)
a
highly
studied
device
that
can
generate
HV
output
with
limited
current,
showing
great
potential
applications.
However,
current
TENG-based
approaches
utilize
traditional
free-standing
TENGs
produce
short-pulsed
alternating-current
signals.
This
limitation
hinders
continuous
electrostatic
forces
necessary
for
precise
control,
leading
to
complex
circuitry
suboptimal
motion
control
terms
of
volume,
distance,
direction,
momentum.
Here,
contactless
charge
injection
(TCCI)
method
employing
novel
dual-functional
(DF-TENG),
proposed.
DF-TENG
both
high
voltage
constant
during
unidirectional
motion,
enabling
corona
discharges
into
the
droplets.
Using
this
method,
large-volume
(3000
µL)
be
controlled
momentum
up
115.2
g
mm
s
International Journal of Extreme Manufacturing,
Journal Year:
2024,
Volume and Issue:
6(3), P. 032005 - 032005
Published: Feb. 22, 2024
Abstract
Microfluidic
devices
are
composed
of
microchannels
with
a
diameter
ranging
from
ten
to
few
hundred
micrometers.
Thus,
quite
small
(10
−9
–10
−18
l)
amount
liquid
can
be
manipulated
by
such
precise
system.
In
the
past
three
decades,
significant
progress
in
materials
science,
microfabrication,
and
various
applications
has
boosted
development
promising
functional
microfluidic
devices.
this
review,
recent
on
novel
functions
is
presented.
First,
theory
numerical
methods
for
studying
performance
briefly
introduced.
Then,
fabrication
summarized.
Next,
advances
highlighted,
including
heat
sinks,
clean
water
production,
chemical
reactions,
sensors,
biomedicine,
capillaric
circuits,
wearable
electronic
devices,
microrobotics.
Finally,
perspectives
challenges
future
developments
This
review
aims
inspire
researchers
fields—engineering,
materials,
chemistry,
mathematics,
physics,
more—to
collaborate
drive
forward
specifically
achieving
carbon
neutrality.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(29)
Published: Feb. 12, 2024
Abstract
Interfacial
floater
possessing
an
open
surface
diversifies
the
functions
of
current
systems
in
field
solar
evaporation,
micro‐detector,
multiphase
catalysis,
etc.
However,
most
floaters
still
face
challenges
such
as
anti‐submersion,
orientation
adjusting,
and
multifunctional
capabilities.
Drawing
inspiration
from
water
striders
diving
bell
spiders,
here
a
superhydrophobic
cellular
origami
(SCO)
is
proposed
with
reliable
stability,
submerge
resistance,
switchable
floatability,
integration.
The
remarkable
floating
ability
achieved
through
air
storage
cells.
SCO
floats
stably
on
has
maximum
load
capacity
that
48%
higher
than
sheet.
Besides,
can
resurface
rapidly
after
complete
submersion,
even
using
titanium
metal
substrate.
To
further
enhance
universality
SCO,
Janus
unbalanced
structure
float
specific
facing
up
optimized
to
be
hinge
for
adjustable
buoyancy.
prove
concept
3D
structure,
cylindrical
presented
cable
locating
surface.
This
study
presents
achievable
strategy
extend
surfaces
into
anti‐sinking
floaters,
offering
valuable
insights
development
interface
carriers.
ACS Nano,
Journal Year:
2024,
Volume and Issue:
18(32), P. 21316 - 21325
Published: Aug. 1, 2024
Utilizing
the
ubiquitous
fog
in
nature
to
create
decentralized
energy-harvesting
devices,
free
from
geographical
and
hydrological
constraints,
presents
an
opportunity
foster
sustainable
power
generation.
Extracting
electrical
energy
relies
heavily
on
fog-digesting
performance.
Improving
efficiency
of
fogwater
utilization
remains
a
formidable
challenge
for
existing
technologies.
Inspired
by
water-harvesting
behavior
Droplet,
Journal Year:
2024,
Volume and Issue:
3(2)
Published: March 25, 2024
Abstract
Droplets
and
bubbles
have
a
wide
range
of
applications
in
industry,
agriculture,
daily
life,
their
controllable
manipulation
is
significant
scientific
technological
importance.
Versatile
magnetically
responsive
strategies
been
developed
to
achieve
precise
control
over
droplets
bubbles.
To
manipulate
nonmagnetic
or
with
magnetic
fields,
the
presence
medium
indispensable.
Magnetic
additives
can
be
added
surface
interior
bubbles,
allowing
for
on‐demand
by
direct
actuation.
Alternatively,
elastomer
substrates
used
actuate
controlling
deformation
microstructures
on
through
stimulation.
Another
strategy
based
untethered
devices,
which
enables
free
mobility,
facilitating
versatile
flexible
manner.
This
paper
reviews
advances
from
perspective
An
overview
different
classes
medium,
along
respective
corresponding
droplet/bubble
methods
principles,
first
introduced.
Then,
biomedicine,
microchemistry,
other
fields
are
presented.
Finally,
remaining
challenges
future
opportunities
related
regulating
behavior
using
discussed.
