Nano Letters,
Journal Year:
2024,
Volume and Issue:
24(44), P. 14073 - 14081
Published: Oct. 28, 2024
Moisture-driven
actuators
featuring
programmable
stimuli-responsiveness
and
a
rapid
response
have
garnered
substantial
research
attention.
Cellulose-based
face
challenges,
including
prolonged
unstable
responsiveness,
along
with
inadequate
interfacial
bonding.
Herein,
we
developed
bilayer
structured
moisture
actuator
by
integrating
multiscale
cellulose
fibers
chitosan.
The
protonated
chitosan
forms
strong
electrostatic
attractions
negatively
charged
nanofibrils
(CNF),
achieving
robust
interaction.
Leveraging
the
hierarchically
porous
structure
varying
hygroscopicity
of
microfibrillated
(MFC)
CNF,
film
establishes
an
effective
wettability
gradient,
enabling
stable
actuation
performance.
exhibits
large
deformation
toward
bending
angle
60°,
short
time
12
s,
good
stability
over
50
wetting
drying
cycles,
promising
recyclability.
Harnessing
these
advantageous
properties,
was
demonstrated
for
its
applications
in
automatic
cooling
textiles,
contactless
electrical
switches,
artificial
moisture-activated
muscles,
showing
great
potential
practical
use.
Biomedicines,
Journal Year:
2024,
Volume and Issue:
12(10), P. 2307 - 2307
Published: Oct. 11, 2024
E-skin
is
a
bionic
device
with
flexible
and
intelligent
sensing
ability
that
can
mimic
the
touch,
temperature,
pressure,
other
functions
of
human
skin.
Because
its
flexibility,
breathability,
biocompatibility,
characteristics,
it
widely
used
in
health
management,
personalized
medicine,
disease
prevention,
pan-health
fields.
With
proposal
new
principles,
development
advanced
functional
materials,
microfabrication
technology,
integration
artificial
intelligence
algorithms,
e-skin
has
developed
rapidly.
This
paper
focuses
on
fundamentals,
key
technologies,
their
specific
applications
exercise
monitoring,
emotion
heart
etc.
needs
to
have
healthcare
field.
In
addition,
significance
infant
child
care,
elderly
assistive
devices
for
disabled
analyzed.
Finally,
current
challenges
future
directions
field
are
discussed.
It
expected
this
review
will
generate
great
interest
inspiration
improvement
novel
e-skins
monitoring
systems.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
35(1)
Published: Aug. 28, 2024
Abstract
Dielectric
elastomer
actuators
(DEAs)
offer
versatile
applications
including
haptics,
soft
robotics
and
smart
lenses.
However,
due
to
the
lack
of
conductive
electrodes
with
low
modulus
high
stretchability,
their
use
is
limited
by
nonsolid
electrodes,
hindering
integration
other
systems.
In
this
study,
transparent
patternable
solid
achieving
actuation
performance
comparable
a
commonly
used
non‐solid
counterpart
(e.g.,
carbon
grease),
stretchable
conducting
polymer
composed
PEDOT:PSS
PEG‐PPG‐PEG
diacrylate
(P123DA)
are
reported.
Varying
ratio
P123DA
enables
optimization
electrical
mechanical
properties
achieve
compliant
in
static
dynamic
actuation.
The
found
impact
nanofiber
formation
associated
properties.
Moreover,
resulting
P123DA/PEDOT:PSS‐based
electrode
shows
excellent
optical
transmittance
exceeding
95%.
This
work
highlights
potential
tuning
different
realize
transparent,
patternable,
enhancing
applicability
diverse
fields.
ACS Applied Materials & Interfaces,
Journal Year:
2024,
Volume and Issue:
16(39), P. 52966 - 52976
Published: Sept. 19, 2024
The
trade-off
between
high
sensitivity
and
wide
detection
range
remains
a
challenge
for
flexible
capacitive
pressure
sensors.
Gradient
structure
can
provide
continuous
deformation
lead
to
sensing
range.
However,
it
simultaneously
augments
the
distance
two
electrodes,
which
diminishes
variation
in
relative
results
decreased
sensitivity.
Herein,
conformal
design
is
introduced
into
gradient
construct
sensor.
dome
fabricated
by
simple
reverse
adsorption
process.
Taking
advantage
of
progressive
behavior
dielectric,
significant
improvement
electrodes
from
design,
sensor
achieves
0.214
kPa
Electronic
skin
(e-skin)
has
been
extensively
investigated
for
its
potential
application
in
heart
health
monitoring,
such
as
screening
cardiovascular
diseases
and
evaluating
cardiac
activity.
Nevertheless,
the
poor
electrical
stability
of
traditional
metal
electrodes
insufficient
adhesion
ordinary
flexible
substrates
are
primary
impediments
that
hinder
further
product
marketing
healthcare
field.
Herein,
we
propose
a
novel
integrated
e-skin
incorporates
embedded
stretchable
with
high
(within
20%
strain)
microsucker
array
improved
adhesion,
which
facilitates
effective
reduction
motion
artifact
interference.
Moreover,
wireless
monitoring
system
based
on
is
designed
to
realize
synchronous
electrocardiogram
(ECG)
ballistocardiogram
(BCG)
detection
by
collecting
chest
epidermal
mechano-acoustic
signals
vibration-voltage
signals.
The
results
same
adult
volunteer
indicate
ECG
BCG
data
recorded
this
have
good
consistency
from
commercial
devices.
Furthermore,
signal
different
volunteers
validated
disease
diagnosis
long-term
monitoring.
Small,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 13, 2025
Abstract
Fiber
electronics
have
gained
significant
attention
for
their
seamless
integration
into
textiles,
offering
enhanced
flexibility,
breathability,
and
wearability.
However,
conventional
circuit
assembly
methods
fiber
devices
often
rely
on
rigid
irreversible
connections,
such
as
silver
conductive
adhesives,
which
impede
essential
modifications
in
electronic
textiles
like
energy
module
upgrades,
sensor
replacements,
damage
repair.
Here,
a
universal
magnetic‐conductive
(MC)
interface
that
facilitates
robust,
reversible
interconnections
is
presented.
Fabricated
by
sequentially
depositing
magnetic
interlayer
sheath
electrode
ends
using
coating
die,
this
compatible
with
diverse
devices.
Upon
close
proximity,
the
MC
interfaces
magnetically
attract
establish
stable
electrical
pathway
spontaneously
(<40
ms),
delivering
conductivity
comparable
to
cured
paste.
Remarkably,
connection
retains
its
performance
over
10
000
connect‐disconnect
cycles,
mechanical
swinging
operations
under
environmental
conditions.
The
versatility
of
further
demonstrated
creating
detachable
fabric
power
bank
wearable
integrating
removable
signal‐processing
textile
on‐demand
electrocardiogram
monitoring
rats.
Overall,
innovation
establishes
universal,
scalable
platform
electronics,
paving
way
next‐generation
customizable
Materials,
Journal Year:
2025,
Volume and Issue:
18(8), P. 1800 - 1800
Published: April 15, 2025
Zwitterionic
polymer
hydrogels
have
great
application
prospects
in
wearable
electronic
devices
due
to
their
antifouling
and
excellent
biocompatibility.
However,
its
strong
hydrophilicity
often
leads
easy
swelling
poor
mechanical
properties.
In
this
study,
aramid
nanofiber
(ANF)-reinforced
zwitterionic
ion
were
synthesized
by
the
one-step
free
radical
polymerization
of
N-acryloyl
glycinamide
(NAGA),
N-[Tris
(hydroxymethyl)
methyl]
acrylamide
(THMA)
sulfobetaine
methacrylate
(SBMA)
monomers
presence
ANFs.
A
large
number
hydrogen
bonds
formed
between
amide
groups
ANFs
NAGA
units/the
hydroxyl
THMA
sulfonic
SBMA
units,
which
improved
internal
interface
force
hydrogel.
The
obtained
ANF-reinforced
hydrogel
had
an
anti-swelling
property,
ratio
tensile
strength
25%
170%
those
without
addition
By
introducing
lithium
chloride
as
electrolyte
improve
conductivity
subsequently
assembling
it
into
strain
sensors,
exhibited
a
high
sensitivity
(GF
=
1.12),
short
response
recovery
times
(100
ms
150
ms),
cycling
stability.
This
work
provides
feasible
strategy
for
sensors.
Advanced Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 17, 2025
Abstract
Heart
disease
encompasses
a
range
of
conditions
that
affect
the
heart,
including
coronary
artery
disease,
arrhythmias,
congenital
heart
defects,
valve
and
muscle.
Intervention
strategies
can
be
categorized
according
to
when
they
are
administered
include:
1)
Monitoring
cardiac
function
using
sensor
technology
inform
diagnosis
treatment,
2)
Managing
symptoms
by
restoring
output,
electrophysiology,
hemodynamics,
often
serving
as
bridge‐to‐recovery
or
bridge‐to‐transplantation
strategies,
3)
Repairing
damaged
tissue,
myocardium
valves,
management
insufficient.
Each
intervention
approach
require
specific
material
properties
optimally,
relying
on
materials
support
their
action
interface
with
body,
new
technologies
increasingly
depending
advances
in
science
engineering.
This
review
explores
requirements
driving
innovation
advanced
for
highlights
key
examples
recent
progress
field
driven
research.
Biosensors,
Journal Year:
2024,
Volume and Issue:
14(9), P. 415 - 415
Published: Aug. 27, 2024
In
recent
years,
the
interest
in
medical
monitoring
for
human
health
has
been
rapidly
increasing
due
to
widespread
concern.
Hydrogels
are
widely
used
and
other
fields
their
excellent
mechanical
properties,
electrical
conductivity
adhesion.
However,
some
of
non-degradable
materials
hydrogels
may
cause
environmental
damage
resource
waste.
Therefore,
organic
renewable
natural
polymers
with
properties
biocompatibility,
biodegradability,
low
cost
non-toxicity
expected
serve
as
an
alternative
those
materials,
also
provide
a
broad
application
prospect
development
natural-polymer-based
flexible
electronic
devices.
This
paper
reviews
progress
research
on
many
different
types
such
proteins
polysaccharides.
The
applications
body
movement
detection
biomedical
then
discussed.
Finally,
present
challenges
future
prospects
polymer-based
summarized.
