Device,
Journal Year:
2023,
Volume and Issue:
2(2), P. 100182 - 100182
Published: Dec. 5, 2023
High-quality
and
continuous
electroencephalogram
(EEG)
monitoring
is
desirable
for
sleep
research,
monitoring,
the
evaluation
treatment
of
disorders.
Existing
EEG
technologies
suffer
from
fragile
connections,
long-term
stability,
complex
preparation
electrodes
under
real-life
conditions.
Here,
we
report
an
injectable
spontaneously
cross-linked
hydrogel
electrode
applications.
Specifically,
our
have
a
low
impedance
on
hairy
scalp
regions
17.53
kΩ
more
than
8
h
recording,
high
adhesiveness
skin
0.92
N
cm
Angewandte Chemie International Edition,
Journal Year:
2023,
Volume and Issue:
62(46)
Published: Oct. 4, 2023
Smart
fluorescent
materials
that
can
respond
to
environmental
stimuli
are
of
great
importance
in
the
fields
information
encryption
and
anti-counterfeiting.
However,
traditional
usually
face
problems
such
as
lack
tunable
fluorescence
insufficient
surface-adaptive
adhesion,
hindering
their
practical
applications.
Herein,
inspired
by
glowing
sucker
octopus,
we
present
a
novel
strategy
fabricate
reversible
eutectogel
with
high
transparency,
adhesive
self-healing
performance
for
conformal
Using
anthracene
luminescent
unit,
exhibits
photoswitchable
therefore
be
reversibly
written/erased
patterns
non-contact
stimulation.
Additionally,
different
from
mechanically
irreversible
adhesion
via
glue,
adhere
various
irregular
substrates
over
wide
temperature
range
(-20
65
°C)
conformally
deform
more
than
1000
times
without
peeling
off.
Furthermore,
exploiting
transparency
good
stretchability
eutectogel,
dual
achieved
under
UV
stretching
conditions
further
improve
security
level.
This
study
should
provide
promising
future
development
advanced
intelligent
anti-counterfeiting
materials.
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
36(31)
Published: March 29, 2024
Wearable
epidermic
electronics
assembled
from
conductive
hydrogels
are
attracting
various
research
attention
for
their
seamless
integration
with
human
body
conformally
real-time
health
monitoring,
clinical
diagnostics
and
medical
treatment,
human-interactive
sensing.
Nevertheless,
it
remains
a
tremendous
challenge
to
simultaneously
achieve
bioadhesive
remarkable
self-adhesiveness,
reliable
ultraviolet
(UV)
protection
ability,
admirable
sensing
performance
high-fidelity
epidermal
electrophysiological
signals
along
timely
photothermal
therapeutic
performances
after
diagnostic
sensing,
as
well
efficient
antibacterial
activity
hemostatic
effect
potential
therapy.
Herein,
hydrogel-based
sensor,
featuring
superior
self-adhesiveness
excellent
UV-protection
performance,
is
developed
by
dexterously
assembling
conducting
MXene
nanosheets
network
biological
hydrogel
polymer
stably
attaching
onto
skin
high-quality
recording
of
high
signal-to-noise
ratios
(SNR)
low
interfacial
impedance
intelligent
diagnosis
smart
human-machine
interface.
Moreover,
sign
language
gesture
recognition
platform
based
on
collected
electromyogram
(EMG)
designed
hassle-free
communication
hearing-impaired
people
the
help
advanced
machine
learning
algorithms.
Meanwhile,
possesses
capability,
biocompatibility,
effective
hemostasis
properties
promising
bacterial-infected
wound
bleeding.
Advanced Materials,
Journal Year:
2023,
Volume and Issue:
35(39)
Published: June 24, 2023
The
development
of
stable
and
biocompatible
soft
ionic
conductors,
alternatives
to
hydrogels
ionogels,
will
open
up
new
avenues
for
the
construction
stretchable
electronics.
Here,
a
brand-new
design,
encapsulating
naturally
occurring
ionizable
compound
by
polymer
via
high-density
hydrogen
bonds,
resulting
in
solvent-free
supramolecular
ion-conductive
elastomer
(SF-supra-ICE)
that
eliminates
dehydration
problem
possesses
excellent
biocompatibility,
is
reported.
SF-supra-ICE
with
high
conductivity
(>3.3
×
10-2
S
m-1
)
exhibits
skin-like
softness
strain-stiffening
behaviors,
elasticity,
breathability,
self-adhesiveness.
Importantly,
can
be
obtained
simple
water
evaporation
step
solidify
aqueous
precursor
into
nature.
Therefore,
act
as
inks
painted
printed
customized
tattoos
(I-tattoos)
multifunctional
on-skin
bioelectronics.
I-tattoos
exhibit
ultraconformal
seamless
contact
human
skin,
enabling
long-term
high-fidelity
recording
various
electrophysiological
signals
extraordinary
immunity
motion
artifacts.
Human-machine
interactions
are
achieved
exploiting
transmit
beings.
Stretchable
I-tattoo
electrode
arrays,
manufactured
printing
method,
demonstrated
multichannel
digital
diagnosis
health
condition
back
muscles
spine.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(32)
Published: April 22, 2024
Abstract
High
mechanical
strength,
excellent
toughness,
low
hysteresis,
and
robust
resilience
are
of
great
importance
for
stretchable
conductive
hydrogels
(CHs)
to
heighten
their
reliabilities
self‐powered
sensing
applications.
However,
it
still
remains
challenging
simultaneously
obtain
the
mutually
exclusive
performances.
Herein,
an
intrinsically
adhesive
hydrogel
is
fabricated
by
one‐step
radical
polymerization
acrylamide
(AAm),
three
hydroxy
groups
together
clustered‐N‐[tris(hydroxymethyl)methyl]acrylamide
(THMA),
cationic
1‐Butyl‐3‐Vinylimidazolium
Bromide
(ILs)
dissolved
in
core‐shell
structurally
dispersed
PEDOT:PSS
(PP)
solution.
Owing
abundant
clustered
hydrogen
bonds,
electrostatic
interactions
between
PILs
chains
anionic
PSS
shells,
polymer
chain
entanglements,
CHs
feature
superior
properties
with
a
high
tensile
strength
(0.25
MPa),
fracture
strain
(1015%),
toughness
(1.22
MJ
m
‐3
),
energy
36.5
kJ
‐2
extremely
hysteresis
(5%),
display
fatigue
resistance.
As
result,
indicate
gauge
factor
up
10.46,
broad
range
(1‐900%)
pressure
(0.05‐100
kPa),
fast
responsive
rate,
thus
qualifying
monitoring
reliably
accurately
large
tiny
human
movements
daily
life.
Moreover,
hydrogel‐assembled
triboelectric
nanogenerators
(TENGs)
exhibit
stable
electrical
output
performances,
which
greatly
promising
flexible
wearable
electronics.
Advanced Healthcare Materials,
Journal Year:
2024,
Volume and Issue:
13(22)
Published: May 22, 2024
The
past
few
decades
have
witnessed
the
rapid
advancement
and
broad
applications
of
flexible
bioelectronics,
in
wearable
implantable
electronics,
brain-computer
interfaces,
neural
science
technology,
clinical
diagnosis,
treatment,
etc.
It
is
noteworthy
that
soft
elastic
conductive
hydrogels,
owing
to
their
multiple
similarities
with
biological
tissues
terms
mechanics,
water-rich,
functions,
successfully
bridged
gap
between
rigid
electronics
biology.
Multifunctional
hydrogel
emerging
as
a
new
generation
promising
material
candidates,
authentically
established
highly
compatible
reliable,
high-quality
bioelectronic
particularly
recording
stimulation.
This
review
summarizes
basis
design
principles
involved
constructing
systematically
discusses
fundamental
mechanism
unique
advantages
bioelectrical
interfacing
surface.
Furthermore,
an
overview
state-of-the-art
manufacturing
strategies
for
interfaces
enhanced
biocompatibility
integration
system
presented.
finally
exemplifies
unprecedented
impetus
toward
stimulation,
especially
integrated
systems,
concludes
perspective
expectation
bioelectronics
biomedical
applications.
