Small,
Journal Year:
2024,
Volume and Issue:
20(45)
Published: July 27, 2024
Graphene
has
tremendous
potential
in
future
electronics
due
to
its
superior
force,
electrical,
and
thermal
properties.
However,
the
development
of
graphene
devices
is
limited
by
complex,
high-cost,
low-efficiency
preparation
process.
This
study
proposes
a
novel
laser
bidirectional
printing
(LBGP)
process
for
large-scale
patterned
films.
In
LBGP,
sandwich
sample
composed
thermoplastic
elastomer
(TPE)
substrate,
carbon
precursor
powder,
glass
cover
irradiated
nanosecond
pulsed
laser.
The
photothermal
effect
converts
into
graphene,
with
partial
sheets
deposited
directly
on
TPE
substrate
remaining
transferred
via
laser-induced
plasma
plume.
method
simultaneously
prepares
two
face-to-face
films
single
irradiation,
integrating
synthesis,
transfer,
patterning.
resulting
patterns
demonstrate
good
performance
flexible
pressure
sensing
Joule
heating,
showcasing
high
sensitivity
(7.7
kPa
Applied Physics Letters,
Journal Year:
2025,
Volume and Issue:
126(3)
Published: Jan. 20, 2025
Resistive
strain
sensors
show
great
potential
in
motion
detection,
medicine
and
healthcare,
human–machine
interaction
owing
to
their
ease
of
fabrication,
simple
structure,
adjustable
electrical
performance.
However,
developing
high-performance
flexible
resistive
with
high
sensitivity,
linearity,
low
hysteresis
remains
a
challenge.
In
this
work,
we
report
an
LMPs
(liquid
metal
particles)/MXene/AgNWs
sensor
(LMA
sensor)
sensitivity
(GF
=
6.339),
linearity
(R2
0.982
24),
(0.452%).
process,
AgNWs
act
as
bridge
between
the
MXene
nanosheets,
change
contact
area
nanosheets
under
stretching
endows
sensitivity.
The
aggregated
function
structural
framework,
capitalizing
on
intrinsic
fluidic
characteristics
serve
adhesive
silver
nanowires
(AgNWs)
nanosheets.
This
approach
effectively
minimizes
interstitial
spaces
MXene.
formation
Ti-O
→
Ga3+
coordination
bonds
has
strengthened
interfacial
interactions.
Consequently,
demonstrates
superior
hysteresis.
addition,
sensitive
layer
buckled
structure
is
obtained
by
stretch-release.
inhibits
inhomogeneous
irreversible
connection
losses
material,
further
improving
sensor's
mechanical
durability.
LMA
can
accurately
detect
various
human
activities
such
breathing
expression
detection.
work
will
provide
avenue
for
sensors.
Advanced Intelligent Systems,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 2, 2025
Soft
robotic
grippers
enable
the
safe
manipulation
of
delicate
objects,
guaranteeing
their
integrity
when
handled
and
collected.
Integrating
sensors
into
these
can
proprioception
but
must
avoid
compromising
flexibility
or
functionality.
This
study
presents
a
pneumatic
finger‐based
soft
gripper
with
novel
piezoresistive
sensor
made
laser‐induced
graphene
(LIG)
embedded
in
dragon
skin
(DS),
an
elastomer
matrix,
offering
continuous
bending
angle
measurement.
The
LIG/DS
composite
is
studied
to
confirm
minimal
impact
on
gripper's
stiffness.
Mechanical
electromechanical
characterizations
are
performed
for
two
designs,
n
1
2
.
Design
exhibits
superior
performance,
gauge
factor
,
linear
response
up
30%
strain,
durability
exceeding
10
000
cycles.
A
finite‐element
method
analysis
identifies
fingers’
neutral
plane,
guiding
optimal
placement.
Experimental
validation
confirms
theoretical
predictions
finds
ideal
location,
achieving
110°
low
hysteresis
(8%).
enables
real‐time
monitoring
finger
during
grasping
tasks,
calibration
curve
linking
resistance
changes
angles.
cost‐effective,
stretchable,
durable
demonstrates
high
potential
applications,
precise
reliable
without
properties.
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 17, 2024
Advanced
epidermal
electronic
devices,
capable
of
real-time
monitoring
physical,
physiological,
and
biochemical
signals
administering
appropriate
therapeutics,
are
revolutionizing
personalized
healthcare
technology.
However,
conventional
portable
devices
predominantly
constructed
from
impermeable
rigid
materials,
which
thus
leads
to
the
mechanical
disparities
between
human
tissues,
resulting
in
skin
irritation,
tissue
damage,
compromised
signal-to-noise
ratio
(SNR),
limited
operational
lifespans.
To
address
these
limitations,
a
new
generation
wearable
on-skin
electronics
built
on
stretchable
porous
substrates
has
emerged.
These
offer
significant
advantages
including
breathability,
conformability,
biocompatibility,
robustness,
providing
solutions
for
aforementioned
challenges.
given
their
diverse
nature
varying
application
scenarios,
careful
selection
engineering
suitable
is
paramount
when
developing
high-performance
tailored
specific
applications.
This
comprehensive
review
begins
with
an
overview
various
substrates,
specifically
focusing
fundamental
design
principles,
fabrication
processes,
practical
Subsequently,
concise
comparison
methods
offered
fabricate
by
applying
substrates.
Following
these,
latest
advancements
applications
highlighted.
Finally,
current
challenges
summarized
potential
future
directions
this
dynamic
field
explored.
Science Advances,
Journal Year:
2025,
Volume and Issue:
11(5)
Published: Jan. 29, 2025
Multimodal
sensing
using
soft
body
dynamics
plays
a
crucial
role
in
controlling
robotic
motions.
An
intriguing
application
of
such
robot
control
is
to
mimic
whiskers
and
digitize
motion
through
whisker
dynamics.
The
challenge
herein
simultaneously
monitor
the
directions,
speed,
force,
slip
information
motion.
existing
whisker-like
sensors
cannot
detect
effectively.
To
address
this
challenge,
study
develops
multitasking
electronic
brush
(e-brush)
composed
bundle
powered
by
reservoir
computing
(RC).
Four
pressure
are
integrated
into
its
motion,
slip,
target
surface.
These
can
provide
long-term,
low-pressure
detection
as
low
50
pascals,
allowing
for
precise
monitoring
movements.
A
RC
algorithm
developed
extract
multiple
parameters,
including
slip.
As
proof
concept
e-brush,
trajectory
handwriting
successfully
detected.
Scientific Reports,
Journal Year:
2025,
Volume and Issue:
15(1)
Published: April 13, 2025
This
work
introduces
novel,
non-cloneable
chipless
RFID
tags
designed
for
authentication,
offering
a
solution
to
protect
product
brands,
such
as
wine,
liquor,
oil,
and
other
liquid
products,
from
counterfeit
practices.
A
unique
spectral
response
of
the
embedded
tag,
created
by
depositing
various
conductive
layers,
can
be
achieved
combining
its
shape
sheet
resistance.
To
accomplish
this,
laser-induced
graphene
(LIG)
layer
is
formed
on
cork
substrate
(used
precursor),
followed
an
electroplating
process
enhance
conductivity.
paper
presents
prototype
scanner,
characterize
electromagnetic
signature
tags,
compatible
variable-sized
wine
bottles
stoppers.
Preliminary
results
obtained
with
complex
logo
images
demonstrate
feasibility
this
technology.
Nanomaterials,
Journal Year:
2024,
Volume and Issue:
14(11), P. 942 - 942
Published: May 27, 2024
Laser-scribed
graphene
(LSG),
a
classic
three-dimensional
porous
carbon
nanomaterial,
is
directly
fabricated
by
laser
irradiation
of
substrate
materials.
Benefiting
from
its
excellent
electrical
and
mechanical
properties,
along
with
flexible
simple
preparation
process,
LSG
has
played
significant
role
in
the
field
sensors.
This
review
provides
an
overview
critical
factors
fabrication,
methods
for
enhancing
functionality
LSG.
It
also
highlights
progress
trends
LSG-based
sensors
monitoring
physiological
indicators,
emphasis
on
device
signal
transduction,
sensing
characteristics.
Finally,
we
offer
insights
into
current
challenges
future
prospects
health
disease
diagnosis.
Chemosensors,
Journal Year:
2025,
Volume and Issue:
13(4), P. 122 - 122
Published: April 2, 2025
Flexible,
wearable
biomedical
sensors
based
on
laser-induced
graphene
(LIG)
have
garnered
significant
attention
due
to
a
straightforward
fabrication
process
and
exceptional
electrical
mechanical
properties.
However,
most
relevant
studies
rely
commercial
polyimide
precursors,
which
suffer
from
inadequate
biocompatibility
weak
adhesion
between
the
precursor
material
LIG
layer.
To
address
these
challenges,
we
synthesized
cross-linked
polyurethanes
(PUs)
with
good
used
them
as
substrates
for
LIG-based
pulse
sensors.
During
fabrication,
employed
two
methods
of
transfer
achieve
optimal
yield.
We
adjusted
thickness
PU
films
tailored
their
physicochemical
properties
by
varying
soft
segment
content
sensor
performance.
Our
findings
demonstrate
that
success
is
strongly
influenced
structure
composition
polymeric
substrate.
Tensile
testing
revealed
increasing
in
significantly
improved
tensile
strength,
elongation
at
break,
flexibility,
50
wt.%
(PU-50)
showing
best
exhibited
minimal
sensitivity
humidity,
while
maintained
high
transparency
(>80%
500
nm),
PU-50
was
non-toxic,
less
than
5%
lactate
dehydrogenase
(LDH)
release
endothelial
cell
cultures,
confirming
its
biocompatibility.
Adhesion
tests
demonstrated
transferred
onto
stronger
compared
other
tested
substrates,
only
30%
increase
resistance
after
Scotch
tape
test,
ensuring
stability
The
substrate,
semicrystalline
PU-50,
yielded
superior
efficiency.
Among
all
sensors,
LIG/PU-50,
featuring
77
μm
thick
substrate
adhesion,
highest
signal-to-noise
ratio
(SNR).
This
study
showcases
skin-safe
LIG/PU-based
has
potential
applications
patch
medical
sports
monitoring.
Polymers for Advanced Technologies,
Journal Year:
2024,
Volume and Issue:
35(6)
Published: June 1, 2024
Abstract
Bio‐compatible
strain
sensors
are
indispensable
for
human
monitoring
devices,
requiring
a
delicate
balance
of
robustness,
flexibility,
and
sensitivity.
However,
achieving
these
attributes
concurrently
remains
formidable
challenge.
This
article
presents
pioneering
approach
to
fabricate
three‐dimensional
flexible
using
laser‐induced
graphene
(LIG)
on
polyimide
(PI)
substrates.
Through
one‐step
laser
direct
writing
(LDW)
technique,
durable
LIG/CuSO
4
composites
with
closed‐pore
porous
structures
synthesized.
The
integration
copper
sulfate
within
the
closed‐cell
architecture
LIG
establishes
resilient
conducting
pathway,
enhancing
sensitivity
deformation
under
tensile
stress.
resulting
sensor
exhibits
exceptional
performance
in
wide
range
movements,
from
vigorous
activities
subtle
oscillations
physiological
signals.
Notably,
boasts
remarkable
sensing
up
25%
strain,
coupled
high
characterized
by
gauge
factor
approximately
597.
Rapid
response
times
175
ms
quick
recovery
200
further
underscore
its
efficiency.
Moreover,
demonstrates
outstanding
stability
durability,
maintaining
consistent
over
5600
cyclic
experiments.
innovative
represents
significant
advancement
bio‐compatible
technology,
offering
versatile
solution
diverse
applications.
