Materials Horizons,
Journal Year:
2023,
Volume and Issue:
10(10), P. 4510 - 4520
Published: Jan. 1, 2023
Flexible
pressure
sensors
with
high
sensitivity
are
required
in
fields
such
as
human-machine
interactions,
electronic
skin,
and
health
tracking.
In
this
work,
we
reported
cellulose
ion-conductive
hydrogel
(ICH)
rationally
designed
from
both
nano
micron
perspectives
for
ultrasensitive
sensors,
via
a
zero-waste
approach,
without
involving
soft
components.
By
introducing
low
molecular
weight
using
the
idea
of
rough
surface,
piezocapacitive
ICH
was
increased
0.04
kPa-1
to
89.81
increments
2245,
which
also
has
degree
transparency,
excellent
durability,
good
electrical
transmission.
Moreover,
demonstrated
great
potential
arrays
practicable
various
industries,
including
medical
treatment
motion
recognition.
The
design
is
applicable
piezoresistive
tactile
realize
enhanced
sensitivity.
This
affordable,
effective,
environmentally
friendly
technology
definitely
offers
novel
enhance
functionality
flexible
sensors.
Molecules,
Journal Year:
2024,
Volume and Issue:
29(6), P. 1267 - 1267
Published: March 13, 2024
Shape
memory
and
self-healing
polymer
nanocomposites
have
attracted
considerable
attention
due
to
their
modifiable
properties
promising
applications.
The
incorporation
of
nanomaterials
(polypyrrole,
carboxyl
methyl
cellulose,
carbon
nanotubes,
titania
graphene,
graphene
oxide,
mesoporous
silica)
into
these
polymers
has
significantly
enhanced
performance,
opening
up
new
avenues
for
diverse
capability
in
depends
on
several
factors,
including
heat,
quadruple
hydrogen
bonding,
π–π
stacking,
Diels–Alder
reactions,
metal–ligand
coordination,
which
collectively
govern
the
interactions
within
composite
materials.
Among
possible
interactions,
only
bonding
between
constituents
been
shown
be
effective
facilitating
at
approximately
room
temperature.
Conversely,
thermo-responsive
shape
require
elevated
temperatures
initiate
healing
recovery
processes.
Thermo-responsive
(TRSMPs),
light-actuated,
magnetically
actuated,
Electrically
actuated
Memory
Polymer
Nanocomposite
are
discussed.
This
paper
provides
a
comprehensive
overview
different
types
involved
SMP
SHP
examines
behavior
both
temperature
conditions,
along
with
biomedical
many
applications
SMPs,
special
given
(drug
delivery,
orthodontics,
tissue
engineering,
orthopedics,
endovascular
surgery),
aerospace
(hinges,
space
deployable
structures,
morphing
aircrafts),
textile
(breathable
fabrics,
reinforced
electromagnetic
interference
shielding
fabrics),
sensor,
electrical
(triboelectric
nanogenerators,
information
energy
storage
devices),
electronic,
paint
coating,
construction
material
(polymer
cement
composites)
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: June 14, 2024
Abstract
Hydrogel‐based
wearable
strain
sensors
have
recently
gained
considerable
interest
due
to
their
promising
applications
in
real‐time
health
monitoring
and
motion
detection.
However,
achieving
integrated
high‐stretchability,
self‐adhesiveness,
long‐term
water‐retaining
property
simultaneously
hydrogel
systems
remains
a
big
challenge,
which
limits
electronics.
Herein,
multifunctional
material
designed
is
proposed
for
that
can
be
manufactured
by
digital
light
processing
(DLP)
3D
printing
technology.
By
tailoring
the
composition
of
chemically
cross‐linked
networks
(ploy(acrylamide)/poly(acrylic
acid)/poly(ethylene
glycol)
diacrylate),
physically
diacrylate/silk
fibroin/glycerol/water)
microstructures
on
surface,
printed
exhibits
superior
adjustable
mechanical
properties,
tunable
adhesion
good
simultaneously.
In
addition,
through
adding
conductive
ions,
high
ionic
conductivity
also
achieved
stretchable
sensing
applications.
Based
these
multifunctionalities,
suitable
detect
various
body
motions.
This
work
provides
prospect
printable
with
broad
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(23)
Published: Feb. 12, 2024
Abstract
Here,
poly(
N
‐acryloylglycinamide‐
co
‐vinyltriazole)
p(NAGA‐
‐VTZ)
supramolecular
polymer
hydrogel
doped
with
carbonized
and
activated
polypyrrole
nanotubes
as
a
high‐strength
self‐healable
material
is
presented
for
supercapacitors.
Initially,
the
films
are
synthesized
by
photopolymerization
of
‐acryloylglycinamide
1‐vinyl‐1,2,4‐triazole
without
use
any
cross‐linkers.
The
hydrogels
demonstrated
remarkable
self‐healing
ability
via
hydrogen
bonding
at
temperatures
above
upper
critical
solubility
temperature,
excellent
mechanical
properties
(0.86
MPa),
large
stretchability
(1300%)
cut
resistance.
Subsequently,
ethanol/KOH‐activated
(acNTs)
prepared
active
electrochemical
double‐layer
capacitors
(EDLC).
Then,
symmetric
supercapacitor
employing
hydrogel,
acNTs
aqueous
3
m
KCl
solution
assembled.
Cyclic
voltammetry
galvanostatic
charge–discharge
measurements
show
that
device
gives
specific
capacitance
282.62
F
g
−1
0.2
A
high
areal
316.86
mF
cm
−2
scan
rate
10
mV
s
.
Importantly,
operates
over
wide
voltage
window
(0–1.2
V)
provides
cyclic
performance
retention
97%
after
000
cycles
94%
self‐healing.
In
summary,
developed
exhibits
considerable
potential
high‐performance
energy
storage
device.
Journal of the American Chemical Society,
Journal Year:
2024,
Volume and Issue:
146(22), P. 15209 - 15218
Published: May 22, 2024
Solid
electrolyte
interphases
(SEIs)
are
sought
to
protect
high-capacity
anodes,
which
suffer
from
severe
volume
changes
and
fast
degradations.
The
previously
proposed
effective
SEIs
were
of
high
strength
yet
abhesive,
inducing
a
yolk–shell
structure
decouple
the
rigid
SEI
anode
for
accommodating
change.
Ambivalently,
interfacial
void-evolved
electro-chemo-mechanical
vulnerabilities
become
inherent
defects.
Here,
we
establish
new
rationale
that
resilience
adhesivity
both
requirements
pioneer
design
resilient
adhesive
(re-ad-SEI),
integrated
into
conjugated
surface
bilayer
structure.
re-ad-SEI
its
protected
particles
exhibit
excellent
stability
almost
free
thickening
particle
pulverization
during
cycling.
More
promisingly,
dynamically
bonded
intact
SEI–anode
interfaces
enable
high-efficiency
ion
transport
provide
unique
mechanical
confinement
effect
structural
integrity
anodes.
Coulombic
efficiency
(>99.8%),
cycling
(500
cycles),
superior
rate
performance
have
been
demonstrated
in
microsized
Si-based
Advanced Science,
Journal Year:
2024,
Volume and Issue:
11(24)
Published: March 15, 2024
Flexible
pressure
sensors
play
a
significant
role
in
wearable
devices
and
electronic
skin.
Iontronic
with
high
sensitivity,
wide
measurement
range,
resolution
can
meet
requirements.
Based
on
the
deformation
characteristics
of
alveoli
to
improve
compressibility,
ability
arch
disperse
vertical
into
horizontal
thrust
increase
contact
area,
graded
hollow
ball
(GHBA)
microstructure
is
proposed,
greatly
improving
sensitivity.
The
fabrication
GHBA
ingeniously
employs
double-sided
structure.
One
side
uses
mold
casting
create
convex
structures,
while
other
utilizes
evaporation
moisture
during
curing
process
form
concave
structures.
At
same
time,
novel
side-by-side
package
structure
ensuring
flexible
substrate
maximally
transferred
microstructure.
Within
range
0.2
Pa-300
kPa,
iontronic
sensor
achieves
maximum
sensitivity
10
420.8
kPa
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.
Exploration,
Journal Year:
2024,
Volume and Issue:
4(5)
Published: March 14, 2024
Abstract
Conductive
polymer
hydrogels
(CPHs)
are
gaining
considerable
attention
in
developing
wearable
electronics
due
to
their
unique
combination
of
high
conductivity
and
softness.
However,
the
absence
interactions,
incompatibility
between
hydrophobic
conductive
polymers
(CPs)
hydrophilic
networks
gives
rise
inadequate
bonding
CPs
hydrogel
matrices,
thereby
significantly
impairing
mechanical
electrical
properties
CPHs
constraining
utility
electronic
sensors.
Therefore,
endow
with
good
performance,
it
is
necessary
ensure
a
stable
robust
network
CPs.
Encouragingly,
recent
research
has
demonstrated
that
incorporating
supramolecular
interactions
into
enhances
interaction,
improving
overall
CPH
performance.
comprehensive
review
focusing
on
(SCPH)
for
sensing
applications
currently
lacking.
This
provides
summary
typical
strategies
employed
development
high‐performance
elucidates
SCPHs
closely
associated
Moreover,
discusses
fabrication
methods
classification
SCPH
sensors,
while
also
exploring
latest
application
scenarios
Finally,
challenges
sensors
offers
suggestions
future
advancements.
Nano Letters,
Journal Year:
2024,
Volume and Issue:
24(17), P. 5351 - 5360
Published: April 18, 2024
Ultrasensitive
and
reliable
conductive
hydrogels
are
significant
in
the
construction
of
human–machine
twinning
systems.
However,
extremely
cold
environments,
freezing
severely
limits
application
hydrogel-based
sensors.
Herein,
building
on
biomimetics,
a
zwitterionic
hydrogel
was
elaborated
for
interaction
employing
multichemical
bonding
synergies
experimental
signal
analyses.
The
covalent
bonds,
hydrogen
electrostatic
interactions
construct
dense
double
network
structure
favorable
stress
dispersion
bond
regeneration.
In
particular,
zwitterions
ionic
conductors
maintained
excellent
strain
response
(99
ms)
electrical
sensitivity
(gauge
factor
=
14.52)
while
immobilizing
water
molecules
to
enhance
weather
resistance
(−68
°C).
Inspired
by
high
sensitivity,
sensors
remote-control
gloves
were
designed
analyzing
signals,
demonstrating
promising
potential
applications
within
specialized
flexible
materials
symbiotic
