Chemistry of Materials,
Journal Year:
2023,
Volume and Issue:
35(18), P. 7814 - 7824
Published: Sept. 7, 2023
Conductive
ionogels
had
demonstrated
significant
prospects
in
the
field
of
flexible
electronics.
Nonetheless,
it
remains
a
big
challenge
to
develop
ionogels,
by
using
degradable
and
recyclable
components,
with
multiple
functional
properties.
Herein,
inspired
traditional
dough
figurine,
novel
type
ionic
assembled
from
flour,
water,
choline
chloride/glycerol
deep
eutectic
solvent
was
engineered
replace
non-recyclable
non-degradable
components
present
ionogels.
The
obtained
exhibited
superior
conductive
performance
(conductivity
3.7
mS·cm–1),
long-lasting
moisture
retention
(80%
weight
after
24
days),
reliable
self-healing
ability
(the
healing
efficiency
up
95%),
excellent
antibacterial
biodegradable
(entirely
degraded
within
30
days)
Wearable
strain
sensors
based
on
can
accurately
detect
both
large
subtle
human
activities
high
sensitivity
(gauge
factor
=
6.2)
durable
stability
under
wide
working
temperature
range
(−20
80
°C).
Notably,
be
further
applied
green
batteries
luminescent
display
screens
electroluminescent
devices.
Therefore,
envisioned
that
effective
innovative
design
strategy
for
fabricating
natural
flour
functionalities
would
provide
applications
wearable
Journal of Materials Chemistry A,
Journal Year:
2024,
Volume and Issue:
12(16), P. 9371 - 9399
Published: Jan. 1, 2024
We
present
a
comprehensive
review
of
the
recent
research
advances
in
field
sensors
based
on
hydrogels
with
nanofillers.
The
characteristics
and
design
strategies
nanofillers
are
highlighted
multiple
properties
conductive
nanocomposite
described.
Advanced Science,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 28, 2025
Abstract
Ionic
conductive
hydrogels
(ICHs)
are
emerging
as
key
materials
for
advanced
human‐machine
interactions
and
health
monitoring
systems
due
to
their
unique
combination
of
flexibility,
biocompatibility,
electrical
conductivity.
However,
a
major
challenge
remains
in
developing
ICHs
that
simultaneously
exhibit
high
ionic
conductivity,
self‐healing,
strong
adhesion,
particularly
under
extreme
low‐temperature
conditions.
In
this
study,
novel
ICH
composed
sulfobetaine
methacrylate,
methacrylic
acid,
TEMPO‐oxidized
cellulose
nanofibers,
sodium
alginate,
lithium
chloride
is
presented.
The
hydrogel
designed
with
hydrogen‐bonded
chemically
crosslinked
network,
achieving
excellent
conductivity
(0.49
±
0.05
S
m
−1
),
adhesion
(36.73
2.28
kPa),
self‐healing
capacity
even
at
−80
°C.
Furthermore,
the
maintain
functionality
over
45
days,
showcasing
outstanding
anti‐freezing
properties.
This
material
demonstrates
significant
potential
non‐invasive,
continuous
monitoring,
adhering
conformally
skin
without
signal
crosstalk,
enabling
real‐time,
high‐fidelity
transmission
cryogenic
These
offer
transformative
next
generation
multimodal
sensors,
broadening
application
possibilities
harsh
environments,
including
weather
outer
space.
ACS Applied Materials & Interfaces,
Journal Year:
2023,
Volume and Issue:
15(51), P. 59854 - 59865
Published: Dec. 14, 2023
As
typical
soft
materials,
hydrogels
have
demonstrated
great
potential
for
the
fabrication
of
flexible
sensors
due
to
their
highly
compatible
elastic
modulus
with
human
skin,
prominent
flexibility,
and
biocompatible
three-dimensional
network
structure.
However,
practical
application
wearable
hydrogel
is
significantly
constrained
because
weak
adhesion,
limited
stretchability,
poor
self-healing
properties
traditional
hydrogels.
Herein,
a
multifunctional
sodium
hyaluronate
(SH)/borax
(B)/gelatin
(G)
double-cross-linked
conductive
(SBG)
was
designed
constructed
through
simple
one-pot
blending
strategy
SH
gelatin
as
gel
matrix
borax
dynamic
cross-linker.
The
obtained
SBG
exhibited
moderate
tensile
strength
25.3
kPa
at
large
elongation
760%,
high
interfacial
toughness
(106.5
kJ
m–3),
strong
adhesion
(28
paper),
satisfactory
conductivity
(224.5
mS/m).
In
particular,
cross-linking
between
SH,
gelatin,
via
borate
ester
bonds
hydrogen
chain
endowed
good
fatigue
resistance
(>300
cycles),
rapid
performance
(HE
(healing
efficiency)
∼97.03%),
excellent
repeatable
adhesion.
sensor
assembled
desirable
strain
sensing
competitive
gauge
factor
exceptional
stability,
which
enabled
it
detect
distinguish
various
multiscale
motions
physiological
signals.
Furthermore,
capable
precisely
perceiving
temperature
variation
thermal
sensitivity
(1.685%
°C–1).
result,
displayed
dual
sensory
deformation.
It
envisioned
that
integration
provide
novel
convenient
next
generation
multisensory
electronics
lay
solid
foundation
in
electronic
skin
actuators.
