Materials,
Год журнала:
2020,
Номер
13(18), С. 3947 - 3947
Опубликована: Сен. 7, 2020
Hydrogels,
as
classic
soft
materials,
are
important
materials
for
tissue
engineering
and
biosensing
with
unique
properties,
such
good
biocompatibility,
high
stretchability,
strong
adhesion,
excellent
self-healing,
self-recovery.
Conductive
hydrogels
possess
the
additional
property
of
conductivity,
which
endows
them
advanced
applications
in
actuating
devices,
biomedicine,
sensing.
In
this
review,
we
provide
an
overview
recent
development
conductive
field
strain
sensors,
particular
focus
on
types
fillers,
including
ionic
conductors,
conducting
nanomaterials,
polymers.
The
synthetic
methods
hydrogel
their
physical
chemical
properties
highlighted.
At
last,
challenges
future
perspectives
applied
flexible
sensors
discussed.
Materials Horizons,
Год журнала:
2021,
Номер
8(6), С. 1795 - 1804
Опубликована: Янв. 1, 2021
Dynamic
interfacial
interactions
between
the
HAPAA
and
PANI
hydrogels
are
favorable
for
self-healing;
thus,
network
can
enhance
mechanical
electronic
properties
of
hydrogel
without
compromising
its
self-healing
performance.
Journal of Materials Chemistry B,
Год журнала:
2021,
Номер
9(11), С. 2561 - 2583
Опубликована: Янв. 1, 2021
Recently,
hydrogel-based
conductive
materials
and
their
applications
as
smart
wearable
devices
have
been
paid
tremendous
attention
due
to
high
stretchability,
flexibility,
excellent
biocompatibility.
Compared
with
single
functional
hydrogels,
multifunctional
hydrogels
are
more
advantageous
match
various
demands
for
practical
applications.
This
review
focuses
on
applied
devices.
Representative
strategies
conduction
of
discussed
firstly:
(1)
electronic
based
the
fillers
(2)
ionic
charged
ions.
Then,
common
intensive
research
multiple
functionalities
such
mechanical
properties,
sensory
anti-freezing
moisturizing
adhesion
self-healing
properties
is
presented.
The
in
human
motion
sensors,
skins,
personal
healthcare
diagnosis
provided
third
part.
Finally,
we
offer
our
perspective
open
challenges
future
areas
interest
used
InfoMat,
Год журнала:
2020,
Номер
2(5), С. 843 - 865
Опубликована: Апрель 7, 2020
Abstract
Flexible
electronics
have
emerged
as
an
exciting
research
area
in
recent
years,
serving
ideal
interfaces
bridging
biological
systems
and
conventional
electronic
devices.
can
not
only
collect
physiological
signals
for
human
health
monitoring
but
also
enrich
our
daily
life
with
multifunctional
smart
materials
Conductive
hydrogels
(CHs)
become
promising
candidates
the
fabrication
of
flexible
owing
to
their
biocompatibility,
adjustable
mechanical
flexibility,
good
conductivity,
multiple
stimuli‐responsive
properties.
To
achieve
on‐demand
properties
such
stretchability,
compressibility,
elasticity,
rational
design
polymer
networks
via
modulating
chemical
physical
intermolecular
interactions
is
required.
Moreover,
type
conductive
components
(eg,
electron‐conductive
materials,
ions)
incorporation
method
play
important
role
conductivity
CHs.
Electron‐CHs
usually
possess
excellent
while
ion‐CHs
are
generally
transparent
generate
ion
gradients
within
hydrogel
matrices.
This
mini
review
focuses
on
advances
CHs,
introducing
various
strategies
electron‐CHs
employed
highlighting
versatile
applications
biosensors,
batteries,
supercapacitors,
nanogenerators,
actuators,
touch
panels,
displays.
image
ACS Applied Polymer Materials,
Год журнала:
2020,
Номер
2(2), С. 996 - 1005
Опубликована: Янв. 10, 2020
Self-healing
hydrogel
plays
an
important
role
in
flexible
sensors.
However,
the
development
of
high-performance
hydrogel-based
strain
sensors
with
both
high
sensitivity
and
large
sensing
range
remains
a
key
challenge.
Herein,
we
prepare
dual
conductive
network
(DCN)
based
on
carbon
nanotube
(CNT)
film
that
exhibits
high-conductivity,
self-healing,
anti-freezing,
non-drying
features.
The
tolerance
this
to
extreme
temperatures
is
improved
via
simple
solvent
replacement,
enabling
DCN
maintain
flexibility
stretchability
under
arduous
conditions
such
as
ranging
from
−85
50
°C.
Additionally,
owing
percolation
structure,
sensor
gauge
factor
343
at
110%,
indicating
sensitivity.
mechanical
electrical
performances
would
be
efficiently
self-repaired
after
heating–cooling
treatment.
self-healing
can
mounted
human
body
detect
biosignals
real
time.
Our
work
shows
method
fabricating
for
future
electronics.
Advanced Materials,
Год журнала:
2022,
Номер
34(43)
Опубликована: Сен. 6, 2022
Demand
for
electromagnetic
wave
(EMW)
absorbers
continues
to
increase
with
technological
advances
in
wearable
electronics
and
military
applications.
In
this
study,
a
new
strategy
overcome
the
drawbacks
of
current
by
employing
co-contribution
functional
polymer
frameworks
liquids
strong
EMW
absorption
properties
is
proposed.
Strongly
polar
water,
dimethyl
sulfoxide/water
mixtures,
highly
conductive
1-ethyl-3-methylimidazolium
ethyl
sulfate
([EMI][ES])
are
immobilized
dielectrically
inert
networks
form
different
classes
gels
(hydrogels,
organogels,
ionogels).
These
demonstrate
high
correlation
between
their
dielectric
polarity/ionic
conductivity/non-covalent
interaction
liquids.
Thus,
performances
can
be
precisely
tuned
over
wide
range
due
diversity
stability
The
prepared
hydrogels
show
good
shielding
performance
(shielding
efficiency
>
20
dB)
constants,
while
organogels
moderate
attenuation
ability
impedance
matching
achieve
full-wave
X-band
(8.2-12.4
GHz)
at
2.5
±
0.5
mm.
ionogels
also
offer
effective
bandwidth
(10.79-16.38
GHz
2.2
mm)
via
prominent
ionic
conduction
loss.
short,
work
provides
conceptually
novel
platform
develop
high-efficient,
customizable,
low-cost
absorbers.
Bioactive Materials,
Год журнала:
2021,
Номер
6(9), С. 2676 - 2687
Опубликована: Фев. 15, 2021
Adhesive
hydrogels
have
broad
applications
ranging
from
tissue
engineering
to
bioelectronics;
however,
fabricating
adhesive
with
multiple
functions
remains
a
challenge.
In
this
study,
mussel-inspired
tannic
acid
chelated-Ag
(TA-Ag)
nanozyme
peroxidase
(POD)-like
activity
was
designed
by
the
in
situ
reduction
of
ultrasmall
Ag
nanoparticles
(NPs)
TA.
The
TA-Ag
exhibited
high
catalytic
induce
hydrogel
self-setting
without
external
aid.
retained
abundant
phenolic
hydroxyl
groups
and
maintained
dynamic
redox
balance
phenol-quinone,
providing
long-term
repeatable
adhesiveness,
similar
adhesion
mussels.
also
afforded
uniform
distribution
network,
thereby
improving
its
mechanical
properties
conductivity.
Furthermore,
endowed
antibacterial
through
synergistic
effects
reactive
oxygen
species
generated
via
POD-like
reactions
intrinsic
bactericidal
Ag.
Owing
these
advantages,
nanozyme-catalyzed
could
be
effectively
used
as
an
adhesive,
antibacterial,
implantable
bioelectrode
detect
bio-signals,
wound
dressing
accelerate
regeneration
while
preventing
infection.
Therefore,
study
provides
promising
approach
for
fabrication
bioelectronics
catalysis.
Journal of Materials Chemistry A,
Год журнала:
2020,
Номер
8(39), С. 20474 - 20485
Опубликована: Янв. 1, 2020
A
new
fully
polymeric
conductive
hydrogel
sensor
with
IPN
structure
was
developed,
which
achieved
ultra-high
stretchability,
strong
surface
adhesion,
and
high
sensing
stability
in
response
to
both
large
subtle
human
movements.
