Langmuir,
Journal Year:
2024,
Volume and Issue:
40(37), P. 19830 - 19838
Published: Sept. 4, 2024
Hydrogel-based
flexible
electronics
have
been
widely
investigated
in
electronic
skin
and
wearable
sensors.
However,
the
challenge
of
matching
modulus
between
hydrogel
electrode
underscores
critical
importance
flexibility
electrode.
Gallium-based
liquid
metals
(GaLMs)
are
ideal
materials
for
substrates
due
to
their
high
conductivity
stretchability.
ease
aggregation
lack
adhesion
happen
when
patterning
GaLMs
on
surfaces.
This
work
proposes
a
direct
ink
writing
(DIW)
highly
oxidized
EGaIn
(hoEGaIn)
an
acrylamide
(AAm)
hydrogel.
The
interface
is
modulated
by
increasing
oxide
content
improve
printability.
Compared
with
layer,
hoEGaIn
displays
lower
surface
tension
dropped
about
28.5%,
higher
(an
increase
24.4%),
contact
angles.
These
optimized
properties
significantly
its
wettability
DIW
stability
AAm
substrates.
A
minimum
line
width
65
μm
obtained
regulating
parameters.
Meanwhile,
exhibits
impressive
multisubstrate
printability
up
2.22
×
10
Soft Science,
Journal Year:
2025,
Volume and Issue:
5(1)
Published: Jan. 22, 2025
With
the
continuous
development
of
small
and
medium-sized
electronic
devices,
which
bring
convenience
to
people’s
lives,
electromagnetic
wave
(EMW)
pollution
has
emerged
as
a
significant
issue.
The
materials
with
interference
(EMI)
shielding
capabilities
for
protection
against
harmful
radiation
plays
vital
role.
Currently,
wide
range
multifunctional,
lightweight
EMI
have
been
created
address
various
environmental
requirements.
However,
single
material
difficult
meet
requirements
high-speed
transmission
equipment
because
when
such
devices
operate
at
high
speeds,
they
typically
generate
elevated
temperatures,
excessive
further
exacerbates
heat
accumulation,
reducing
both
efficiency
lifespan.
Therefore,
thermal
management
is
essential
lower
operating
temperatures
ensure
optimal
performance.
Phase
change
(PCMs)
are
known
storing
large
amount
energy,
potential
in
management,
so
flexible
phase
composites
(PCCs)
emerged.
This
review
provides
detailed
examination
based
on
fillers,
PCMs
latest
advancements
developing
new
PCCs.
Finally,
we
suggest
some
research
directions
PCCs,
hoping
contribute
rapid
advancement
next-generation
electronics,
human
artificial
intelligence.
ACS Applied Materials & Interfaces,
Journal Year:
2025,
Volume and Issue:
17(4), P. 6957 - 6968
Published: Jan. 7, 2025
Liquid
metals
are
highly
conductive
like
metallic
materials
and
have
excellent
deformability
due
to
their
liquid
state,
making
them
rather
promising
for
flexible
stretchable
wearable
sensors.
However,
patterning
on
soft
substrates
has
been
a
challenge
high
surface
tension.
In
this
paper,
new
method
is
proposed
overcome
the
difficulties
in
fabricating
liquid-state
strain
The
involves
adding
nickel
powder
particles
metal
maintain
metal's
fluidity
while
lowering
tension
so
that
can
be
easily
patterned
substrate
using
magnets.
With
addition
of
12
wt
%
(40
μm)
metal,
gauge
factor
5.17
achieved
at
300%
strain.
addition,
by
integration
multiple
sensors
smart
glove
monitor
14
joints
human
hand,
10
sign
language
gestures
recognized
comparing
results
five
different
machine
learning
models,
among
which
quadratic
discriminative
analysis
model
accomplished
with
an
accuracy
rate
100%.
magnetically
nickel-containing
liquid-metal
study
wide
range
applications
intelligent
robots
human-machine
interfaces.
ACS Omega,
Journal Year:
2024,
Volume and Issue:
9(37), P. 38359 - 38370
Published: Aug. 30, 2024
To
enable
the
development
of
artificial
intelligence
things,
improvement
strain
sensing
mechanisms
and
optimization
interconnections
are
needed.
Direct
laser
writing
to
obtain
laser-induced
graphene
(LIG)
is
being
studied
as
a
promising
technique
for
producing
wearable,
lightweight,
highly
sensitive,
reliable
sensors.
These
devices
show
higher
degree
flexibility
stretchability
when
transferred
an
elastomeric
substrate.
In
this
article,
we
manufactured
polydimethylsiloxane
(PDMS)-encapsulated
LIG
piezoresistive
sensors
with
quasi-linear
behavior
gauge
factor
111.
The
produced
was
morphologically
characterized
via
Raman
spectroscopy
scanning
electron
microscopy
before
after
electromechanical
characterization
transfer
PDMS.
results
from
these
analyses
revealed
that
integrity
material
test
not
affected
volume
in
contact
substrate
increased
encapsulation
PDMS,
leading
sensor
performance.
sensors'
capability
measuring
bend
angles
accurately
demonstrated
experimentally,
making
them
useable
wide
range
applications
human
body
movement
monitoring
well
structural
health
monitoring.
Regarding
monitoring,
PDMS-encapsulated
knee
bending
angle
detection
proposed.
This
device
showed
unaffected
performance
1500
cycles
under
8%
uniaxial
deformation
response
times
1-2
s.
Soft Science,
Journal Year:
2025,
Volume and Issue:
5(1)
Published: Jan. 16, 2025
Soft
robots
have
become
increasingly
popular
due
to
their
compliance,
deformability,
and
adaptability.
sensors,
particularly
bending
play
a
crucial
role
in
providing
essential
posture
position
information
for
these
robots.
However,
current
soft
sensors
encounter
difficulties
accurately
measuring
joint
angles
directions
under
different
curvatures.
To
address
challenges,
we
propose
novel
dual-colored
layer
structured
(DCLS)
sensor
based
on
the
optical
waveguide.
The
DCLS
is
constructed
using
polydimethylsiloxane
(PDMS)
as
clear
core,
with
red
blue
layers
each
side.
sensor’s
performance
evaluated
through
experiments
involving
bending,
compression,
impact
conditions.
exhibits
excellent
calibration-free
properties,
allowing
it
effectively
monitor
of
joints
varying
sizes
without
requiring
any
additional
calibration.
successfully
integrated
into
various
robots,
including
fruit
sorting
robot,
fish-inspired
hand
orthotic
exoskeleton
showcasing
its
versatility
potential
applications.
InfoMat,
Journal Year:
2025,
Volume and Issue:
unknown
Published: May 15, 2025
Abstract
Printed
electronics
technology,
characterized
by
its
low
cost,
large‐area
compatibility,
operational
simplicity,
and
high‐speed
processing,
has
been
extensively
utilized
in
the
fabrication
of
flexible
electronic
devices.
Liquid
metals,
with
their
exceptional
electrical
conductivity
room‐temperature
fluidity,
are
considered
ideal
materials
for
development
stretchable
electronics.
However,
adhesion
mechanisms
at
interface
between
liquid
metals
substrates,
a
fundamental
aspect
metal‐based
printed
electronics,
have
not
comprehensively
explored
existing
literature.
This
review
first
introduces
properties
to
various
followed
summary
printing
technologies
designed
enhance
or
reduce
substrate
adhesion.
Additionally,
techniques
on
non‐adhesive
substrates
through
material
modification,
as
well
methods
achieving
detachment
adhesive
controlling
interfacial
properties,
demonstrated.
Finally,
future
research
challenges
developmental
trends
materials,
methods,
equipment,
applications
discussed.
provides
comprehensive
understanding
effects
offering
valuable
insights
wide
range
including
plastics,
silicones,
paper,
even
biological
surfaces.
image
Sensors,
Journal Year:
2024,
Volume and Issue:
24(14), P. 4453 - 4453
Published: July 10, 2024
Background:
People
with
blindness
and
intellectual
disability
can
have
problems
locating,
identifying,
retrieving
objects
needed
for
daily
activities
(e.g.,
clothes
food
items)
from
familiar
storage
contexts,
such
as
cupboards
cabinets.
Objective:
This
preliminary
study
assessed
a
technological
system
designed
to
help
three
people
those
improve
their
performance.
Methods:
The
system,
which
involved
the
use
of
tags
radio
frequency
identification
codes,
smartphone,
tag
reader,
aimed
guide
participants
in
searching
different
units.
In
practice,
provided
feedbacks
depending
on
whether
were
(a)
wrong
unit,
(b)
shelf/drawer
right
or
(c)
unit.
Results:
All
successful
correctly
system.
results
also
showed
that
preferred
using
over
control
strategy,
able
switch
off
independently,
staff
rated
positively.
Conclusions:
These
findings
suggest
might
be
useful
support
tool
disability.
