ACS Applied Nano Materials,
Journal Year:
2024,
Volume and Issue:
7(10), P. 11690 - 11703
Published: May 8, 2024
Developing
flexible
wearable
strain
sensors
that
combine
high
performance
and
cost-effectiveness
remains
a
challenge.
We
proposed
the
polarity-induced
adsorption
theory
based
on
like
dissolves
principle,
which
can
dramatically
increase
loading
rate
of
carbon
nanomaterials
TPU
electrospun
nanofiber
substrates,
constructed
PDA/CB/CNF/TPU
(PCCT)
with
dual-mode
three-dimensional
nanobrush-bridging
structures
binary
carbon-based
active
filler
through
introduction
mixed
dispersant
system.
The
trend
similar
effects
sheet
resistance
present
for
variety
systems
proves
objective
existence
applicability
theory,
then,
microscopic
mechanism
action
model
is
analyzed
explained.
optimization
scheme
summarized
this
basis
resulted
in
PCCT
an
ultrahigh
nanomaterial
59.5%
ultralow
68.5
Ω/sq,
enabled
high-density
conductive
network
synergistic
double-bridging
to
demonstrate
full-stretch
range
responsiveness
(0.12–285%)
sensitivity
(GF
=
25.5
(0–100%),
84.3
(100–200%)
312.4
(200–285%)),
realizing
enhancement
low-cost
devices.
Finally,
testing
response
different
levels
including
human
joint
movements
muscle
such
as
blinking
proved
practical
value
wide
applications
field
monitoring.
Polymer,
Journal Year:
2024,
Volume and Issue:
303, P. 127120 - 127120
Published: May 1, 2024
A
piezoresistive
flexible
strain
sensor
was
developed
using
thermoplastic
polyurethane
elastomers
(TPU)
as
the
matrix
and
carbon
nanotubes
(CNTs)
conductive
fillers.
Sensitivity,
range,
tensile
cycling
stability
were
concurrently
considered
during
its
design.
Electrospun
TPU
fiber
membranes
prepared
via
electrospinning
in
this
experiment,
with
controllable
diameter
achieved
by
adjusting
rotational
speed
of
receiving
drum.
CNTs
incorporated
into
a
polymer
substrate
through
suction
filtration
to
create
sensor.
The
support
structure
electrospun
film
served
carrier
for
uniformly
adhering
particles.
Well-dispersed
could
more
easily
achieve
uniform
loading
pore
size
film,
thereby
forming
layer.
This
study
initially
determined
influence
content
spinning
solution
on
morphology
membrane.
Subsequently,
effects
CNT
drum
microstructure
investigated,
along
their
impact
microstructure,
mechanical
properties,
sensing
performance
CNTs/TPU
(CT)
sensors.
results
indicate
that
membrane
under
conditions
mass
fraction
20
wt%
100
r/min
has
larger
average
stable
scaffold
structure.
sensor,
filtering
10
mL
concentration
2
mg/mL,
exhibited
best
strength
elongation
at
break
6.22
MPa
575%,
respectively.
Additionally,
it
demonstrated
high
sensitivity
(GF=420.17
200%
strain)
excellent
durability
(300
cycle
tests),
enabling
quick
accurate
responses
movements
various
parts
human
body,
meeting
basic
usage
requirements
Journal of Material Science and Technology,
Journal Year:
2024,
Volume and Issue:
203, P. 201 - 210
Published: April 12, 2024
Flexible
supercapacitors
with
high
mechanical
strength,
excellent
flexibility,
and
performance
are
highly
desired
to
meet
the
increasing
demands
of
flexible
electronics.
However,
trade-off
between
electrochemical
properties
remains
challenging.
In
this
context,
an
interface-engineered
strategy
approach
was
proposed
construct
polylactic
acid
(PLA)/polyaniline
(PANI)/MXene
film
(PPM)
electrodes
for
supercapacitor
applications.
PPM
electrode,
porous
PLA
prepared
from
nonsolvent-induced-phase-separation
method
served
as
ideal
substrate,
providing
flexibility
whereas
PANI
coupling
agent,
enhanced
interfacial
strength
electroactive
MXene
that
firmly
anchored
deposited
on
through
a
facile
layer-by-layer
dip
coating
method.
The
tensile
at
break,
elongation
toughness
53.09
MPa,
11.09%,
4.12
MJ/m3,
respectively,
much
higher
than
those
pure
(29.36
4.62%,
0.75
MJ/m3).
At
optimum
mass
loading
density
3
mg
cm−2
MXene,
fabricated
PPM3
electrode
achieved
specific
capacitance
290.8
F
g−1
current
1
A
in
three-electrode
setup,
approximately
1.5
times
190.8
MXene.
Meanwhile,
symmetric
all-solid-state
based
delivers
193.7
0.25
g−1,
corresponding
energy
9.3
Wh
kg−1
power
291.3
W
kg−1.
SC
retains
86%
its
original
even
bent
120°
also
possesses
fire-retardant
ability,
demonstrating
great
potential
safe
wearable
Carbon,
Journal Year:
2024,
Volume and Issue:
229, P. 119513 - 119513
Published: Aug. 8, 2024
With
rapid
technological
advancements,
electromagnetic
radiation
is
becoming
one
of
new
forms
pollution,
which
not
only
affects
the
use
precision
instruments,
but
also
threatens
safety
human
life.
Electromagnetic
wave
(EMW)
absorbing
material
can
effectively
attenuate
EMW,
among
carbon
fiber
doped
magnetic
particles
possess
low
density,
multiple
attenuation,
and
magnetic-dielectric
synergy,
attracting
more
attention.
Carbon-based
fibers
achieve
combination
loss
dielectric
loss,
improve
impedance
match,
resulting
in
excellent
reflection
(RL)
effective
absorption
bandwidth
(EAB).
Herein,
recent
researches
on
carbon-based
are
reviewed,
focusing
preparation
methods
structural
difference.
It
specifically
introduces
their
performance
advantages,
providing
a
brief
analysis
structure-property
relationship.
Finally,
extensive
application
potential
emphasize,
highlighting
challenges
opportunities
field
EMW
absorption.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 2, 2024
Abstract
With
the
rapid
development
of
bioscience
and
technology,
wearable
electronic
devices
are
developing
toward
advanced
trends
such
as
flexibility,
convenience,
multifunctionality,
user‐friendliness.
Herein,
polystyrene‐block‐poly(ethylene‐co‐butylene)‐block‐polystyrene
(SEBS)
is
employed
for
assisting
strong
binding
silver
nanoparticles
(AgNPs)
with
polyimide
nanofiber
(PIF)
to
obtain
durable
PIAgS
conductive
membrane
antibacterial
hydrophobic
ability.
Owing
porous
fiber
skeleton
good
interface
adhesion,
AgNPs
can
be
homogeneously
anchored
onto
surface
construct
stable
perfect
3D
network
an
ultrahigh
conductivity
up
2102.7
S/m,
enabling
multifunctionality
resultant
superior
bioelectric
signal
(EMG/ECG)
sensing,
pressure
sensing
(S
=
1.45
kPa
−1
,
100
kPa)
deep
learning
assisted
gesture
recognition,
electromagnetic
interference
(EMI)
shielding
(18757.8
dB·cm
2
·g
),
electric
heating
(12.2
°C/V
)
performances.
Furthermore,
a
multifunctional
device,
antimicrobial
ability
breathability
ensure
its
sufficient
wearing
safety
comfort.
Importantly,
inherent
weathering
resistance
PINF
SEBS
also
endows
it
excellent
stability
broad
service
life.
Taken
together,
designed
possesses
great
application
potential
next‐generation
device
wide
applicability.
Chemical Society Reviews,
Journal Year:
2024,
Volume and Issue:
53(17), P. 8632 - 8712
Published: Jan. 1, 2024
Bioelectronics
is
a
hot
research
topic,
yet
an
important
tool,
as
it
facilitates
the
creation
of
advanced
medical
devices
that
interact
with
biological
systems
to
effectively
diagnose,
monitor
and
treat
broad
spectrum
health
conditions.
Electrical
stimulation
(ES)
pivotal
technique
in
bioelectronics,
offering
precise,
non-pharmacological
means
modulate
control
processes
across
molecular,
cellular,
tissue,
organ
levels.
This
method
holds
potential
restore
or
enhance
physiological
functions
compromised
by
diseases
injuries
integrating
sophisticated
electrical
signals,
device
interfaces,
designs
tailored
specific
mechanisms.
review
explains
mechanisms
which
ES
influences
cellular
behaviors,
introduces
essential
principles,
discusses
performance
requirements
for
optimal
systems,
highlights
representative
applications.
From
this
review,
we
can
realize
based
bioelectronics
therapy,
regenerative
medicine
rehabilitation
engineering
technologies,
ranging
from
tissue
neurological
modulation
cardiovascular
cognitive
functions.
underscores
versatility
various
biomedical
contexts
emphasizes
need
adapt
complex
clinical
landscapes
addresses.
