ACS Applied Electronic Materials,
Journal Year:
2024,
Volume and Issue:
6(10), P. 7503 - 7511
Published: Oct. 8, 2024
Flexible
piezoresistive
pressure
sensors
have
received
much
attention
due
to
their
potential
for
applications
in
personalized
real-time
health
detection,
human-computer
interaction,
and
the
Internet
of
Things
(IoT).
However,
achieving
a
fast
response
high
sensitivity
while
keeping
cost
low
remains
key
concern
researchers.
In
this
paper,
we
simulated
spiky
surface
hedgehog
skin
by
hydrothermal
growth
nickel
molybdate
on
carbonized
sponge.
Based
this,
MXene
material
was
compounded
process
immersion
sonication,
thus
MXene/NiMoO4@CMF
(MNC)
successfully
prepared.
After
assembly
into
an
MNC
sensor,
it
shows
good
performance.
terms
sensitivity,
is
31.1
kPa–1
range
0–10
kPa,
15.7
10–15
3.3
15–64
kPa.
Moreover,
also
has
capability
(500
ms)
excellent
cyclic
stability
(95.7%).
addition,
integrated
sensor
with
ESP8266
WiFi
Module
IoT
Development
Board
autonomously
programmed
UI
interface.
Therefore,
capable
monitoring
human
real
time
displaying
abnormal
statuses
interface
when
test
value
outside
normal
range.
summary,
based
its
sensing
performance
application,
wide
wearable
devices,
IoT,
monitoring.
Advanced Healthcare Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Sept. 17, 2024
Abstract
The
rapid
advancements
in
artificial
intelligence,
micro‐nano
manufacturing,
and
flexible
electronics
technology
have
unleashed
unprecedented
innovation
opportunities
for
applying
sensors
healthcare,
wearable
devices,
human–computer
interaction.
human
body's
tactile
perception
involves
physical
parameters
such
as
pressure,
temperature,
humidity,
all
of
which
play
an
essential
role
maintaining
health.
Inspired
by
the
sensory
function
skin,
many
bionic
been
developed
to
simulate
skin's
various
stimuli
are
widely
applied
health
monitoring.
Given
urgent
requirements
sensing
performance
integration
field
devices
monitoring,
here
is
a
timely
overview
recent
advances
multi‐functional
It
covers
fundamental
components
categorizes
them
based
on
different
response
mechanisms,
including
resistive,
capacitive,
voltage,
other
types.
Specifically,
application
these
area
monitoring
highlighted.
Based
this,
extended
dual/triple‐mode
integrating
temperature
presented.
Finally,
challenges
discussed.
Stretchable
piezoresistive
pressure
sensors
are
susceptible
to
tensile
strain,
leading
signal
cross-talk
and
inaccurate
measurements.
Therefore,
it
is
a
challenge
find
an
effective
method
reduce
the
effect
of
strain
on
stretchable
sensors.
Herein,
strain-insensitive
sensor
(SISPS)
with
serpentine
nested
structure
was
constructed
through
laser
engraving
graphene.
The
dispersion
reduced
variation
in
relative
resistance
only
0.3%
under
80%
resulting
significant
performance.
obtained
demonstrated
high
sensitivity
(1.41
×
10–1
kPa–1),
broad
sensing
range
(0–50
kPa),
short
response
time
(100
ms),
low
detection
limit
Pa),
good
cyclic
stability
(3000@10
kPa).
capable
accurately
detecting
human
physiological
body
motion
signals
including
pulse,
muscle
movement,
laryngeal
vocalizations.
Journal of Semiconductors,
Journal Year:
2025,
Volume and Issue:
46(1), P. 012601 - 012601
Published: Jan. 1, 2025
Abstract
In
the
era
of
Metaverse
and
virtual
reality
(VR)/augmented
(AR),
capturing
finger
motion
force
interactions
is
crucial
for
immersive
human-machine
interfaces.
This
study
introduces
a
flexible
electronic
skin
index
finger,
addressing
coupled
perception
both
state
process
in
dynamic
tactile
sensing.
The
device
integrates
resistive
giant
magnetoelastic
sensors,
enabling
detection
surface
pressure
joint
bending.
e-skin
identifies
three
phases
action:
bending
state,
normal
tangential
(sweeping).
system
comprises
carbon
nanotubes
(CNT)/polydimethylsiloxane
(PDMS)
films
sensing
sensors
(NdFeB
particles,
EcoFlex,
coils)
detection.
inward
sensor,
based
on
self-assembled
microstructures,
exhibits
directional
specificity
with
response
time
under
120
ms
sensitivity
from
0°
to
120°.
demonstrate
specific
responses
frequency
deformation
magnitude,
as
well
roughness
during
sliding
material
hardness.
system’s
capability
demonstrated
through
tactile-based
bread
type
condition
recognition,
achieving
92%
accuracy.
intelligent
patch
shows
broad
potential
enhancing
across
various
fields,
VR/AR
interfaces
medical
diagnostics
smart
manufacturing
industrial
automation.
Micromachines,
Journal Year:
2025,
Volume and Issue:
16(3), P. 330 - 330
Published: March 12, 2025
The
rapid
development
of
flexible
sensor
technology
has
made
arrays
a
key
research
area
in
various
applications
due
to
their
exceptional
flexibility,
wearability,
and
large-area-sensing
capabilities.
These
can
precisely
monitor
physical
parameters
like
pressure
strain
complex
environments,
making
them
highly
beneficial
for
sectors
such
as
smart
wearables,
robotic
tactile
sensing,
health
monitoring,
electronics.
This
paper
reviews
the
fabrication
processes,
operational
principles,
common
materials
used
sensors,
explores
application
different
materials,
outlines
two
conventional
preparation
methods.
It
also
presents
real-world
examples
large-area
arrays.
Fabrication
techniques
include
3D
printing,
screen
laser
etching,
magnetron
sputtering,
molding,
each
influencing
performance
ways.
Flexible
sensors
typically
operate
based
on
resistive
capacitive
mechanisms,
with
structural
designs
(e.g.,
sandwich
fork-finger)
affecting
integration,
recovery,
processing
complexity.
careful
selection
materials—especially
substrates,
electrodes,
sensing
materials—is
crucial
efficacy.
Despite
significant
progress
design
application,
challenges
remain,
particularly
mass
production,
wireless
real-time
data
processing,
long-term
stability.
To
improve
production
feasibility,
optimizing
reducing
material
costs,
incorporating
automated
lines
are
essential
scalability
defect
reduction.
For
enhancing
energy
efficiency
through
low-power
communication
protocols
addressing
signal
interference
stability
critical
seamless
operation.
Real-time
requires
innovative
solutions
edge
computing
machine
learning
algorithms,
ensuring
low-latency,
high-accuracy
interpretation
while
preserving
flexibility
Finally,
environmental
adaptability
demands
new
protective
coatings
withstand
harsh
conditions.
Ongoing
overcoming
these
challenges,
that
meet
needs
diverse
remaining
cost-effective
reliable.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(32)
Published: March 5, 2024
Abstract
Stretchable
pressure
sensor
arrays
are
ideal
for
biomimetic
electronic
skin
(e‐skin).
However,
conventional
sensors
exhibit
noticeable
strain
interference
when
stretched.
This
article
introduces
an
advanced
fabrication
method
based
on
dual‐band
laser
selective
etching
to
create
stretchable
free
from
interference.
An
intact
sensitive
film
is
sandwiched
between
the
top
and
bottom
electrodes
then
etched
into
separate
sensing
cells.
Silicone
gel
with
extremely
low
Young's
modulus
(0.157
kPa)
employed
as
buffer
layer,
filling
space
within
cells
absorb
device
during
stretching.
The
demonstrate
exceptional
interference‐free
performance,
resistance
of
remaining
unchanged
under
strains
exceeding
20%.
Pressure
32
×
units
manufactured,
showcasing
a
resistive
response
time
≈40
ms
compression
20
release,
along
sensitivity
0.7702
kPa
−1
range
1–70
kPa.
Finally,
integrated
robotic
hand
e‐skin,
coupled
deep
learning
algorithms,
successfully
identifying
static
dynamic
distributions
achieving
average
precision
rate
over
99%
in
recognizing
2D
shapes
objects.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Sept. 24, 2024
Abstract
A
new
galvanic
cell
design
of
a
self‐powered
and
3D‐printable
soft
sensor
showing
health
monitoring,
object
recognition,
contactless
hand
gesture
is
reported.
The
consists
3D‐printed
poly(acrylic
acid)
(PAA)
hydrogel
electrolyte
layer,
anode
cathode
layer.
layer
Cu
2+
cross‐linked
poly(
N
,
‐dimethylacrylamide‐
co
‐3‐alanine‐2‐hydroxypropylmethacrylate)
(PDA)
dispersed
with
metal
particles
(PDA/Cu
/Cu
hydrogel),
while
the
bottom
thin
PAA
containing
MnO
2
(PAA/MnO
).
Using
graphite
films
as
electrodes,
finally
assembled.
has
high
force
temperature
sensitivities.
It
gives
different
electric
current
responses
under
stretching,
bending,
pressing,
impact
loading.
demonstrated
to
be
useful
in
detecting
human
motion
physiological
activities,
e.g.,
breath.
Based
on
sensitivities,
used
recognize
gestures
plastic
balls
diameters.
This
3D
printable
self‐powering,
capturing,
multi‐pimulus
sensing
capabilities
illustrates
pathway
make
sensory
devices
for
healthcare
human‐machine
interaction
applications.
Advanced Science,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 22, 2025
Abstract
High‐performance
flexible
pressure
sensors
are
crucial
for
applications
such
as
wearable
electronics,
interactive
systems,
and
healthcare
technologies.
Among
these,
iontronic
have
garnered
particular
attention
due
to
their
superior
sensitivity,
enabled
by
the
giant
capacitance
variation
of
electric
double
layer
(EDL)
at
ionic‐electronic
interface
under
deformation.
Key
advancements,
incorporating
microstructures
into
ionic
layers
employing
diverse
materials,
significantly
improved
sensor
properties
like
accuracy,
stability,
response
time.
This
review
highlights
advancements
in
EDL
sensors,
focusing
on
structural
designs
material
engineering.
These
strategies
tailored
optimize
key
metrics
detection
limit,
linearity,
speed,
hysteresis,
transparency,
wearability,
selectivity,
multifunctionality.
fabrication
techniques,
including
micropatterning
externally
assisted
methods,
reviewed,
along
with
comparison
guidelines
selecting
appropriate
sensors.
Emerging
healthcare,
environmental
aerodynamic
sensing,
human–machine
interaction,
robotics,
machine
learning‐assisted
intelligent
sensing
explored.
Finally,
this
discusses
challenges
future
directions
advancing
EDL‐based
