ACS Applied Materials & Interfaces,
Journal Year:
2023,
Volume and Issue:
15(34), P. 40975 - 40990
Published: Aug. 16, 2023
Conductive
hydrogels
have
attracted
tremendous
interest
in
the
construction
of
flexible
strain
sensors
and
triboelectric
nanogenerators
(TENGs)
owing
to
their
good
stretchability
adjustable
properties.
Nevertheless,
how
simultaneously
achieve
high
transparency,
self-healing,
adhesion,
antibacterial,
anti-freezing,
anti-drying,
biocompatibility
properties
through
a
simple
method
remains
challenge.
Herein,
transparent,
freezing-tolerant,
multifunctional
organohydrogel
(PAOAM-PDO)
as
electrode
for
TENGs
was
constructed
free
radical
polymerization
1,3-propanediol
(PDO)/water
binary
solvent
system,
which
oxide
sodium
alginate,
aminated
gelatin,
acrylic
acid,
AlCl3
were
used
raw
materials.
The
obtained
PAOAM-PDO
exhibited
transparency
(>90%),
adhesiveness,
antibacterial
property,
conductivity
(1.13
S/m),
long-term
environmental
stability.
introduction
PDO
endowed
with
freezing
resistance
low
point
-60
°C,
could
serve
protective
skin
barrier
prevent
frostbite
at
temperature.
be
assembled
monitor
heterogeneous
human
movements
sensitivity
(gauge
factor
7.05,
=
233%).
Meanwhile,
further
fabricated
TENG
"sandwich"
structure
single
mode.
Moreover,
resulting
achieved
electrical
outputs
hand
tapping
served
self-powered
device
light
light-emitting
diodes.
This
work
displays
feasible
strategy
build
environment-tolerant
organohydrogels,
possess
potential
applications
wearable
electronics
devices.
Advanced Functional Materials,
Journal Year:
2023,
Volume and Issue:
34(1)
Published: Sept. 19, 2023
Abstract
Conductive
hydrogels
(CHs)
for
flexible
bioelectronic
devices
have
raised
great
attention
due
to
their
tunable
mechanical
performances,
adhesion,
anti‐swelling,
and
biocompatibility.
This
review
summarizes
the
current
development
of
conductive
hydrogel‐based
in
aspect
classifications
applications.
Firstly,
are
classified
into
two
kinds
according
types
conductivity:
ionic
electronic
(hydrogel
based
on
pure
materials,
introducing
micro/nano‐materials).
Secondly,
applications
device,
like
wearable
(strain
sensor,
body
fluid
detector,
serviced
extreme
environment),
tissue
engineering
(skin,
heart,
nerve,
muscle),
other
(bionic
robot,
cancer
treatment),
highly
illustrated.
Finally,
a
depth
outlook
is
given,
which
aims
promote
this
field
future.
Advanced Science,
Journal Year:
2023,
Volume and Issue:
10(15)
Published: March 26, 2023
The
rapid
rise
of
triboelectric
nanogenerators
(TENGs),
which
are
emerging
energy
conversion
devices
in
advanced
electronics
and
wearable
sensing
systems,
has
elevated
the
interest
high-performance
multifunctional
materials.
Among
them,
cellulosic
materials,
affording
high
efficiency,
biodegradability,
customizability,
becoming
a
new
front-runner.
inherently
low
dielectric
constant
limits
increase
surface
charge
density.
However,
owing
to
its
unique
structure
excellent
processability,
cellulose
shows
great
potential
for
modulation,
providing
strong
impetus
applications
era
Internet
Things
artificial
intelligence.
This
review
aims
provide
comprehensive
insights
into
fabrication
dielectric-enhanced
materials
via
modulation.
exceptional
advantages
research
progress
highlighted.
effects
constant,
polarization,
percolation
threshold
on
density
systematically
investigated,
theoretical
basis
Typical
characterization
methods
introduced,
their
technical
characteristics
analyzed.
Furthermore,
performance
enhancements
endowed
by
including
more
efficient
harvesting,
electronics,
impedance
matching
material
strategies,
introduced.
Finally,
challenges
future
opportunities
modulation
summarized.
ACS Applied Materials & Interfaces,
Journal Year:
2023,
Volume and Issue:
15(34), P. 40975 - 40990
Published: Aug. 16, 2023
Conductive
hydrogels
have
attracted
tremendous
interest
in
the
construction
of
flexible
strain
sensors
and
triboelectric
nanogenerators
(TENGs)
owing
to
their
good
stretchability
adjustable
properties.
Nevertheless,
how
simultaneously
achieve
high
transparency,
self-healing,
adhesion,
antibacterial,
anti-freezing,
anti-drying,
biocompatibility
properties
through
a
simple
method
remains
challenge.
Herein,
transparent,
freezing-tolerant,
multifunctional
organohydrogel
(PAOAM-PDO)
as
electrode
for
TENGs
was
constructed
free
radical
polymerization
1,3-propanediol
(PDO)/water
binary
solvent
system,
which
oxide
sodium
alginate,
aminated
gelatin,
acrylic
acid,
AlCl3
were
used
raw
materials.
The
obtained
PAOAM-PDO
exhibited
transparency
(>90%),
adhesiveness,
antibacterial
property,
conductivity
(1.13
S/m),
long-term
environmental
stability.
introduction
PDO
endowed
with
freezing
resistance
low
point
-60
°C,
could
serve
protective
skin
barrier
prevent
frostbite
at
temperature.
be
assembled
monitor
heterogeneous
human
movements
sensitivity
(gauge
factor
7.05,
=
233%).
Meanwhile,
further
fabricated
TENG
"sandwich"
structure
single
mode.
Moreover,
resulting
achieved
electrical
outputs
hand
tapping
served
self-powered
device
light
light-emitting
diodes.
This
work
displays
feasible
strategy
build
environment-tolerant
organohydrogels,
possess
potential
applications
wearable
electronics
devices.
