Advanced Functional Materials,
Journal Year:
2023,
Volume and Issue:
34(14)
Published: Dec. 22, 2023
Abstract
High‐density
surface
electromyography
(sEMG)
electrode
arrays
enable
the
recording
of
tens
to
hundreds
channels
electromyographic
signals,
which
have
found
wide
applications
in
clinics
and
human‐machine
interfaces.
However,
current
manufacturing
technologies
high‐density
sEMG
generally
involve
high‐cost
equipments,
complicated
procedures,
insufficient
programmability,
severely
hampering
rational
design
practical
customized
yet
cost‐effective
arrays.
Herein,
facile
efficient
fabrication
novel
32‐channel
soft
by
an
all‐printed
technique
based
on
multimaterial
direct
ink
writing
3D
printing
is
presented.
By
employing
four‐layer
stacked
structure
designs
with
systematic
printability
evaluation,
it
can
successfully
realize
seamless
interfacial
integration
during
printing,
achieving
reproducible,
programmable,
continuous
The
all
3D‐printed
exhibit
excellent
stability,
low
impedance,
high
signal‐to‐noise
ratio
superior
commercial
products
increase
32.2%.
Such
intriguing
properties
this
unique
capability
mapping
muscle
activation
forearm,
motor
unit
action
potential
trains
be
precisely
identified
for
varying
hand
gestures
effectively
explore
innovative
interface
toward
diverse
such
as
teleoperation
prosthetic
control.
European Polymer Journal,
Journal Year:
2024,
Volume and Issue:
205, P. 112718 - 112718
Published: Jan. 2, 2024
In
the
contemporary
era,
novel
manufacturing
technologies
like
additive
(AM)
have
revolutionized
different
engineering
sectors
including
biomedical,
aerospace,
electronics,
etc.
Four-dimensional
(4D)
printing
aka
AM
of
smart
materials
is
gaining
popularity
among
scientific
community,
which
has
excellent
ability
to
make
soft
structures
such
as
robots,
actuators,
and
grippers.
These
are
developed
by
applying
various
stimuli
pH,
temperature,
magnetic
field,
many
combinations
onto
materials.
Stimuli
in
3D
permit
shape-morphing
behaviors
bending,
twisting,
folding,
swelling,
rolling,
shrinking,
origami,
or
locomotion.
A
wide
variety
can
be
fabricated
through
incorporation
hard
particles
into
resulting
magneto-active
(MASMs).
With
this
integration,
magneto-thermal
coupling
actuation
allows
diverse
magneto-deformations,
facilitating
development
personalized
devices
that
capable
enhanced
deformation.
review,
guidelines
provided
on
for
MASMs
polymers
(MAPs),
composites,
hydrogels
(MAHs)
booming
flexible
wearable
biomimetic
devices.
Moreover,
3D-printed
robotics
an
outstanding
capacity
adapt
complicated
situations
advanced
actuating
applications.
Finally,
some
current
challenges
emerging
areas
exciting
technology
been
proposed.
Lastly,
it
anticipated
technological
advancements
developing
intelligent
will
a
significant
impact
design
real-world
Giant,
Journal Year:
2023,
Volume and Issue:
17, P. 100209 - 100209
Published: Nov. 15, 2023
Additive
manufacturing
(AM)
aka
three-dimensional
(3D)
printing
has
been
a
well-established
and
unparalleled
technology,
which
is
expanding
the
boundaries
of
materials
science
exhibiting
an
enormous
potential
to
fabricate
intricate
geometries
for
healthcare,
electronics,
construction
sectors.
In
contemporary
era,
combination
AM
technology
stimuli-responsive
hydrogels
(SRHs)
helps
create
dynamic
functional
structures
with
extreme
accuracy,
are
capable
changing
their
shape,
functional,
or
mechanical
properties
in
response
environmental
cues
such
as
humidity,
heat,
light,
pH,
magnetic
field,
electric
etc.
3D
SRHs
permits
creation
on-demand
dynamically
controllable
shapes
excellent
control
over
various
self-repair,
self-assembly,
multi-functionality,
These
accelerate
researchers
think
unthinkable
applications.
Additively
manufactured
objects
have
shown
applications
like
tissue
engineering,
drug
delivery,
soft
robots,
sensors,
other
biomedical
devices.
The
current
review
provides
recent
progress
SRHs,
more
focus
on
techniques,
stimuli
mechanisms,
shape
morphing
behaviors,
Finally,
trends
future
roadmap
additively
smart
different
also
presented,
will
be
helpful
research.
This
holds
great
promise
providing
fundamental
knowledge
about
diverse
Small,
Journal Year:
2023,
Volume and Issue:
20(19)
Published: Dec. 8, 2023
Electrical
bioadhesive
interface
(EBI),
especially
conducting
polymer
hydrogel
(CPH)-based
EBI,
exhibits
promising
potential
applications
in
various
fields,
including
biomedical
devices,
neural
interfaces,
and
wearable
devices.
However,
current
fabrication
techniques
of
CPH-based
EBI
mostly
focus
on
conventional
methods
such
as
direct
casting,
injection,
molding,
which
remains
a
lingering
challenge
for
further
pushing
them
toward
customized
practical
bioelectronic
commercialization.
Herein,
3D
printable
high-performance
precursor
inks
are
developed
through
composite
engineering
PEDOT:PSS
adhesive
ionic
macromolecular
dopants
within
tough
matrices
(PVA).
Such
allow
the
facile
high-resolution
programmable
patterned
printing.
Upon
successive
freeze-thawing,
as-printed
PEDOT:PSS-based
simultaneously
high
conductivity
1.2
S
m
Advanced Materials,
Journal Year:
2023,
Volume and Issue:
36(11)
Published: Dec. 14, 2023
High-performance
flexible
pressure
sensors
are
highly
demanded
for
artificial
tactile
sensing.
Using
ionic
conductors
as
the
dielectric
layer
has
enabled
ionotronic
with
high
sensitivities
owing
to
giant
capacitance
of
electric
double
(EDL)
formed
at
conductor/electronic
conductor
interface.
However,
conventional
suffer
from
leakage,
which
greatly
hinders
long-term
stability
and
practical
applications.
Herein,
a
leakage-free
polyelectrolyte
elastomer
is
synthesized.
The
mechanical
electrical
properties
optimized,
micropyramid
array
constructed,
it
used
an
sensor
marked
performances.
obtained
exhibits
sensitivity
69.6
kPa
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
36(13)
Published: Jan. 8, 2024
The
conducting
polymer
poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate)
(PEDOT:PSS)
offers
superior
advantages
in
electronics
due
to
its
remarkable
combination
of
high
electrical
conductivity,
excellent
biocompatibility,
and
mechanical
flexibility,
making
it
an
ideal
material
among
electronic
skin,
health
monitoring,
energy
harvesting
storage.
Nevertheless,
pristine
PEDOT:PSS
films
exhibit
limitations
terms
both
low
conductivity
stretchability;
while,
conventional
processing
techniques
cannot
enhance
these
properties
simultaneously,
facing
the
dilemma
that
highly
conductive
interconnected
domains
are
susceptible
tensile
strain.
Via
modifying
with
ionic
liquids
(ILs),
not
only
a
synergistic
enhancement
can
be
achieved
but
also
requirements
for
printable
bioelectronic
satisfied.
In
this
comprehensive
review,
task
providing
thorough
examination
mechanisms
applications
ILs
as
modifiers
is
undertaken.
First,
theoretical
governing
interactions
between
discussed
detail.
Then,
enhanced
elucidation
underlying
through
incorporation
reviewed.
Next,
specific
ILs-modified
relevant
devices
presented.
Last,
there
concise
summary
discussion
regarding
opportunities
challenges
exciting
field.
Advanced Science,
Journal Year:
2024,
Volume and Issue:
11(38)
Published: Aug. 9, 2024
Flexible
electrochromic
devices
(FECDs)
are
widely
explored
for
diverse
applications
including
wearable
electronics,
camouflage,
and
smart
windows.
However,
the
manufacturing
process
of
patterned
FECDs
remains
complex,
costly,
non-customizable.
To
address
this
challenge,
a
strategy
is
proposed
to
prepare
integrated
via
multi-material
direct
writing
3D
printing.
By
designing
novel
viologen/polyvinyl
alcohol
(PVA)
hydrogel
inks
systematically
evaluating
printability
various
inks,
seamless
interface
integration
can
be
achieved,
enabling
streamlined
with
continuous
production
capabilities.
The
resultant
3D-printed
exhibit
excellent
mechanical
properties,
high
optical
contrast
(up
54%
at
360
nm),
nice
cycling
stability
(less
than
5%
electroactivity
reduction
after
10
000
s),
19%
optimal
decrease
5000
cycles
bending).
potential
these
hydrogel-based
further
demonstrated
in
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.
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 23, 2024
Abstract
Conductive
hydrogels
combine
the
benefits
of
soft
with
electrical
conductivity
and
have
gained
significant
attention
over
past
decade.
These
innovative
materials,
including
poly(3,4‐ethylenedioxythiophene)
(PEDOTs)‐based
conductive
(P‐CHs),
are
promising
for
flexible
electronics
biological
applications
due
to
their
tunable
flexibility,
biocompatibility,
hydrophilicity.
Despite
recent
advances,
intrinsic
correlation
between
design,
fabrications,
P‐CHs
has
been
mostly
based
on
trial‐and‐error‐based
Edisonian
approaches,
significantly
limiting
further
development.
This
review
comprehensively
examines
design
strategies,
fabrication
technologies,
diverse
P‐CHs.
By
summarizing
such
as
molecular,
network,
phase,
structural
engineering,
exploring
both
2D
3D
techniques,
this
offers
a
comprehensive
overview
in
fields
bioelectronics,
actuators,
energy
devices,
solar
evaporators.
Establishing
critical
internal
connection
fabrication,
application
aims
guide
future
research
stimulate
innovation
field
functional
P‐CHs,
offering
broad
multidisciplinary
researchers.
