Multifunctional
hydrogels
have
garnered
significant
interest
but
remain
challenging
due
to
the
complex
preparation
process
and
high
cost
of
raw
materials.
Herein,
bisphenol
A
diglycidyl
ether
(BADGE)
poly(ethylene
glycol)
(PEGDGE)
were
reacted
with
3-amino-1-propanol
via
a
catalyst-free
amine–epoxy
"click"
chemistry,
followed
by
addition
hydrophilic
1,3-propane
sultone
(1,3-PS)
higher
water
content,
then
cross-linked
hexamethylene
diisocyanate
(HDI)
in
one-pot
provide
polymer
network,
i.e.,
PBAxPEGyPU–PS.
The
two-step
cross-linking
method
enables
greater
precision
controlling
density
process.
situ
microphase-separated
porous
PBA50PEG50PU–PS
demonstrates
nanosized
pores
approximately
100
nm
uniform
distribution
thermodynamic
incompatibility,
enabling
superior
mechanical
properties
transparency
87.9%.
Upon
absorption
loss
cycle,
89.7%
was
obtained
lower
pore
50
solvent-induced
self-assembly
its
amphiphilic
structure.
Furthermore,
bilayer
hydrogel
composed
WPBA90PEG10PU–PS
WPBA50PEG50PU–PS
designed
for
"Janus"
soft
actuator
based
on
difference
between
two
sides
swelling
ability
upon
absorption,
which
has
been
applied
underwater
grasping
humidity-responsive
switch.
To
maintain
inherent
elasticity
conductivity
hydrogel,
glycerol
(Gly)
sodium
ion
(Na+)
introduced
into
mixture.
It
shows
that
WPBA50PEG50PU–PS/Gly67
maintains
environmental
stability
more
than
80%
weight
at
20
°C
72
h
additional
frost
resistance
−20
°C,
dual
network
WPBA50PEG50PU–PS/Gly67/Na10
exhibits
best
comprehensive
tensile
strength
good
conductivity.
Meanwhile,
1,3-PS
provides
quaternary
ammonium
salt
sulfobetaine,
endowing
multicomponent
antibacterial
sensing
capabilities.
This
work
versatile
approach
preparing
transparent
multifunctional
highlights
their
potential
various
applications.
Advanced Sensor Research,
Journal Year:
2024,
Volume and Issue:
3(9)
Published: May 14, 2024
Abstract
Smart
hydrogel
sensors,
functioning
as
implantable
devices,
play
a
vital
role
in
health
monitoring
and
early
warning,
overcoming
the
limitations
of
conventional
clinical
methods
to
achieve
direct,
continuous,
precise
monitoring.
Widely
employed
across
various
biomedical
fields,
these
sensors
offer
unique
advantages
for
monitoring,
ensuring
highly
accurate
In
addition
detecting
biomolecules,
smart
with
their
flexibility
biocompatibility,
monitor
disease‐specific
markers,
insights
into
disease
progression,
contribute
identification
diseases.
This
article
provides
comprehensive
review
types
human
The
study
discusses
recent
advancements
sensor
research,
aiming
promising
Finally,
paper
outlines
prospective
research
directions
field
While
further
validation
are
essential,
poised
pivotal
applications,
furnishing
people
continuous
Polymers,
Journal Year:
2024,
Volume and Issue:
16(7), P. 971 - 971
Published: April 2, 2024
Hydrogels
are
soft–wet
materials
with
a
hydrophilic
three-dimensional
network
structure
offering
controllable
stretchability,
conductivity,
and
biocompatibility.
However,
traditional
conductive
hydrogels
only
operate
in
mild
environments
exhibit
poor
environmental
tolerance
due
to
their
high
water
content
network,
which
result
undesirable
swelling,
susceptibility
freezing
at
sub-zero
temperatures,
structural
dehydration
through
evaporation.
The
application
range
of
is
significantly
restricted
by
these
limitations.
Therefore,
developing
environmentally
tolerant
(ETCHs)
crucial
increasing
the
scope
materials.
In
this
review,
we
summarize
recent
strategies
for
designing
multifunctional
that
possess
anti-freezing,
anti-drying,
anti-swelling
properties.
Furthermore,
briefly
introduce
some
applications
ETCHs,
including
wearable
sensors,
bioelectrodes,
soft
robots,
wound
dressings.
current
development
status
different
types
ETCHs
limitations
analyzed
further
discuss
future
research
directions
prospects.
ACS Sensors,
Journal Year:
2024,
Volume and Issue:
9(10), P. 5322 - 5332
Published: Oct. 15, 2024
Hydrogels
based
on
borate
ester
bonds
exhibit
remarkable
tensile
strength
and
self-healing
ability,
which
make
them
a
promising
material
for
various
biological
research
strain
sensor
applications.
However,
in
order
to
meet
the
practical
application
of
hydrogel
sensors,
they
must
also
show
high
conductivity,
frost
resistance,
proper
adhesion,
is
still
continuous
challenge.
Herein,
triple
network
was
prepared
using
poly(vinyl
alcohol)
(PVA)
as
first
network,
ethylene
imine
polymer
(PEI)
second
poly(acrylamide-
Aggregate,
Journal Year:
2024,
Volume and Issue:
5(5)
Published: May 15, 2024
Abstract
Supercapacitors
(SCs)
are
studied
and
used
in
various
fields
due
to
their
high
power
density,
fast
charging/discharging
rate,
as
well
long
cycle
life.
Compared
other
traditional
electrode
electrolyte
materials,
supramolecular
hydrogels
have
great
advantages
the
application
of
SCs
excellent
properties.
Unlike
covalent
bonds,
systems
assembled
through
dynamic
reversible
including
host–guest
interactions,
ion
electrostatic
hydrogen
bonding,
coordination
etc.
The
resulting
show
some
special
functions,
such
stretching,
compression,
adhesion,
self‐healing,
stimulus
responsiveness,
etc.,
making
them
strong
candidates
for
next
generation
energy
storage
devices.
This
paper
reviews
representative
progress
electrodes,
electrolytes,
based
on
hydrogels.
Besides,
properties
hydrogels,
conductivity,
extensibility,
compressibility
elasticity,
frost
resistance,
flexibility,
also
reviewed
highlight
key
role
hydrogel
materials
SCs.
In
addition,
this
article
discusses
challenges
faced
by
current
technologies,
hoping
continue
promoting
future
research
field.
ACS Applied Materials & Interfaces,
Journal Year:
2024,
Volume and Issue:
16(26), P. 33135 - 33148
Published: June 20, 2024
Atopic
dermatitis
(AD),
a
chronic
skin
condition
characterized
by
itching,
redness,
and
inflammation,
is
closely
associated
with
heightened
levels
of
endogenous
reactive
oxygen
species
(ROS)
in
the
skin.
ROS
can
contribute
to
onset
progression
AD
through
oxidative
stress,
which
leads
release
proinflammatory
cytokines,
T-cell
differentiation,
exacerbation
symptoms.
In
this
study,
we
aim
develop
therapeutic
antioxidant
hydrogel
patch
for
potential
treatment
using
lignin,
biomass
waste
material.
Lignin
contains
polyphenol
groups
that
enable
it
scavenge
exhibit
properties.
The
lignin
patches,
possessing
optimized
mechanical
properties
control
cross-linker
ratio,
demonstrated
high
ROS-scavenging
capabilities.
Furthermore,
excellent
biocompatibility
skin,
exhibiting
beneficial
protecting
human
keratinocytes
under
conditions.
When
applied
an
mouse
model,
effectively
reduced
epidermal
thickness
inflamed
regions,
decreased
mast
cell
infiltration,
regulated
inflammatory
cytokine
levels.
These
findings
collectively
suggest
serves
as
managing
modulating
stress
its
ability.
