Stretchable
conductive
hydrogels
exhibit
promising
potential
as
portable
electronic
devices
and
strain
sensors.
However,
they
suffer
from
intricate
preparation
procedures
inadequate
mechanical
properties
for
constructing
triboelectric
nanogenerators
(TENGs).
Herein,
we
propose
a
borax-cross-linked
poly(vinyl
alcohol)
(PVA)/polyethylene
glycol
(PEG)/Chinese
ink
(C)
carbon
nanoparticle
composite
hydrogel,
which
boasts
simple
fabrication
method
environmental
friendliness.
The
dispersion
of
nanoparticles
throughout
the
polymer
network
bolsters
strength
hydrogel
also
imparts
good
electrical
conductivity.
incorporation
PEG
improves
while
dynamic
bonding
between
borate
ions
PVA
confers
excellent
self-recovery
properties.
Upon
cutting
reuniting
fractured
surfaces
30
s,
two
segments
underwent
spontaneous
healing
without
external
stimuli.
mended
incisions
nearly
vanished
withstood
stretching
to
three
times
their
original
length
fracturing,
showing
remarkable
self-healing
capability
stretchability.
Finally,
TENGs
were
prepared
using
PVA/PEG/C
output
voltage
was
approximately
2.9
V
across
all
frequencies.
PVA/PEG/C-TENG
demonstrated
rapid
response
at
180°
bending,
reacting
stimulation
in
mere
0.256
s
returning
its
state
within
0.511
after
stimulus
removed.
shows
versatility
applications
such
wearable
motion
monitoring,
precise
stroke
recognition,
efficient
energy
harvesting.
ACS Nano,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 12, 2025
Flexible
on-skin
electronics
present
tremendous
popularity
in
intelligent
electronic
skins
(e-skins),
healthcare
monitoring,
and
human-machine
interfaces.
However,
the
reported
e-skins
can
hardly
provide
high
permeability,
good
stretchability,
large
sensitivity
are
limited
long-term
stability
efficient
recyclability
when
worn
on
human
body.
Herein,
inspired
from
skin,
a
permeable,
stretchable,
recyclable
cellulose
aerogel-based
system
is
developed
by
sandwiching
screen-printed
silver
sensing
layer
between
biocompatible
CNF/HPC/PVA
(cellulose
nanofiber/hydroxypropyl
cellulose/poly(vinyl
alcohol))
aerogel
hypodermis
permeable
polyurethane
as
epidermis
layer.
The
displays
tensile
strength
of
1.14
MPa
strain
43.5%
while
maintaining
permeability.
embrace
appealing
performances
with
(gauge
factor
≈
238),
ultralow
detection
limit
(0.1%),
fast
response
time
(18
ms)
under
stimulus.
Owing
to
disconnection
reconnection
microcracks
layer,
both
strain/humidity
thermal
be
easily
achieved.
further
integrated
into
an
mask
for
patient-centered
power
supply
system,
switching
control
device,
wireless
Bluetooth
module.
Moreover,
prepared
enables
wearing
skin
without
irritation,
all
components
recaptured/reused
water.
This
material
strategy
highlights
potential
next-generation
permeability
environmental
friendliness.
ACS Sensors,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 2, 2025
Flexible
pressure
sensors
have
shown
significant
application
prospects
in
fields
such
as
artificial
intelligence
and
precision
manufacturing.
However,
most
flexible
are
often
prepared
using
polymer
materials
precise
micronano
processing
techniques,
which
greatly
limits
the
widespread
of
sensors.
Here,
this
work
chooses
textile
material
construction
for
sensor,
its
latitude
longitude
structure
endows
sensor
with
a
natural
structure.
The
was
designed
multilayer
stacking
strategy
by
combining
two-dimensional
MXene
materials.
experiment
shows
that
sensitivity
is
52.08
kPa
Nano Letters,
Journal Year:
2024,
Volume and Issue:
24(10), P. 3186 - 3195
Published: Feb. 27, 2024
Multisensory
integration
enables
the
simultaneous
perception
of
multiple
environmental
stimuli
while
minimizing
size
and
energy
consumption.
However,
conventional
multifunctional
in
flexible
electronics
typically
requires
large-scale
horizontal
sensing
arrays
(such
as
printed
circuit
boards),
posing
decoupling
complexities,
tensile
strain
limitation,
spatial
constraints.
Herein,
a
fully
multimodal
system
(FMSS)
is
developed
by
coupling
biomimetic
stretchable
conductive
films
(BSCFs)
strain-insensitive
communication
interfaces
using
vertical
stacking
strategy.
The
FMSS
achieves
without
additional
adhesives,
it
can
incorporate
individual
layers
interconnects
any
essential
constraint
on
their
deformations.
Accordingly,
temperature
pressure
are
precisely
decoupled
simultaneously,
stress
be
accurately
discerned
different
directions.
This
strategy
expected
to
offer
new
approach
significantly
streamline
design
fabrication
systems
enhance
capabilities.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 28, 2024
Abstract
Flexible
pressure
sensor
(FPS)
has
promising
applications
in
fields
like
health
monitoring
and
human–machine
interactions.
The
achieving
of
both
high
sensitivity
wide
detection
range
FPS
remains
highly
challenging.
Here,
inspired
by
the
filiform
papillae
on
cat
tongue,
a
(noted
as
p
)
with
up
to
504.5
kPa
−1
,
from
30
Pa
350
kPa,
fast
response
time
83
ms,
stability
over
8000
cycles
is
developed.
papilla‐like
structure
continuously
shifts
location
stress
concentration
under
increasing
pressure,
which
avoids
accumulation
at
tips,
resulting
range.
Moreover,
demonstrates
capabilities
human
physiological
signals
movement
status
can
serve
human‐machine
interaction
interface.
work
not
only
presents
wearable
but
also
establishes
design
strategy
for
high‐performance
bioelectronics.
Advanced Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 21, 2025
Abstract
Mechanical
information
is
a
medium
for
perceptual
interaction
and
health
monitoring
of
organisms
or
intelligent
mechanical
equipment,
including
force,
vibration,
sound,
flow.
Researchers
are
increasingly
deploying
recognition
technologies
(MIRT)
that
integrate
acquisition,
pre‐processing,
processing
functions
expected
to
enable
advanced
applications.
However,
this
also
poses
significant
challenges
acquisition
performance
efficiency.
The
novel
exciting
mechanosensory
systems
in
nature
have
inspired
us
develop
superior
bionic
(MIBRT)
based
on
materials,
structures,
devices
address
these
challenges.
Herein,
first
strategies
pre‐processing
presented
their
importance
high‐performance
highlighted.
Subsequently,
design
considerations
sensors
by
mechanoreceptors
described.
Then,
the
concepts
neuromorphic
summarized
order
replicate
biological
nervous
system.
Additionally,
ability
MIBRT
investigated
recognize
basic
information.
Furthermore,
further
potential
applications
robots,
healthcare,
virtual
reality
explored
with
view
solve
range
complex
tasks.
Finally,
future
opportunities
identified
from
multiple
perspectives.
