ACS Applied Materials & Interfaces,
Journal Year:
2024,
Volume and Issue:
16(25), P. 32762 - 32772
Published: June 13, 2024
Currently,
the
development
of
hydrogels
with
excellent
mechanical
properties
(elasticity,
fatigue
resistance,
etc.)
and
conductive
can
better
meet
their
needs
in
field
flexible
sensor
device
applications.
Generally,
a
denser
cross-linking
density
tend
to
have
properties,
but
improvement
comes
at
expense
reduced
electrical
conductivity.
Directly
generating
CaCO3
hydrogel
prepolymer
not
only
increase
its
network
also
introduce
additional
ions
enhance
internal
ionic
strength,
which
is
beneficial
improving
conductivity
hydrogel.
It
still
big
challenge
directly
generate
static
solution
ensure
uniform
dispersion
Herein,
we
adopted
an
improved
preparation
method
that
generated
particles
be
evenly
dispersed
until
polymerization
completed.
Finally,
PAM/PVA/CaCO3
supertensile,
compressive,
toughness,
resistance
was
prepared.
In
addition,
presence
free
Na+
Cl–
gives
sensing
performance
monitor
daily
human
activities.
On
basis
application
information
communication,
further
deepened
this
by
combining
characteristics
themselves.
Combined
ASCII
code,
applied
exchange
encryption
decryption,
achieving
antitheft
function
smart
locks.
A
variety
integrated
broad
prospects
for
sensors,
highlighting
great
potential
human–computer
interaction
intelligent
protection.
Small,
Journal Year:
2024,
Volume and Issue:
20(30)
Published: March 3, 2024
Abstract
Hydrogels
are
currently
in
the
limelight
for
applications
soft
electronics
but
they
suffer
from
tendency
to
lose
water
or
freeze
when
exposed
dry
environments
low
temperatures.
Molecular
crowding
is
a
prevalent
occurrence
living
cells,
which
molecular
agents
modify
hydrogen
bonding
structure,
causing
significant
reduction
activity.
Here,
wide‐humidity
range
applicable,
anti‐freezing,
and
robust
hydrogel
developed
through
incorporation
of
natural
amino
acid
proline
(Pro)
conductive
MXene
into
polyvinyl
alcohol
(PVA)
networks.
Theoretical
calculations
reveal
that
Pro
can
transform
“free
water”
“locked
via
molecular‐crowding
effect,
thereby
suppressing
evaporation
ice
forming.
Accordingly,
prepared
exhibits
high
retention
capability,
with
77%
55%
being
preserved
after
exposure
20
°C,
28%
relative
humidity
(
RH)
35
90%
RH
12
h.
Meanwhile,
lowers
freezing
temperature
34
°C
enhances
its
stretchability
strength.
Finally,
PVA/Pro/MXene
hydrogels
assembled
as
multifunctional
on‐skin
strain
sensors
electrodes
monitor
human
motions
detect
tiny
electrophysiological
signals.
Collectively,
this
work
provides
strategy
will
motivate
researchers
develop
more
advanced
versatile
applications.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(38)
Published: May 19, 2024
Abstract
Flexible
and
stretchable
ion‐conductive
elastomers
have
shown
promising
applications
in
wearable
flexible
sensor
devices,
biopotential
detection,
electroluminescent
other
areas.
However,
the
currently
employed
gel‐based
materials
encounter
issues
such
as
solvent
volatilization
or
leakage.
Herein,
there
is
an
urgent
requirement
to
develop
a
solid‐state
ionic
conductor
material
that
both
safe
reliable,
free
from
of
liquid
Here,
study
reports
elastomer
with
excellent
mechanical
properties
high
conductivity
based
on
synergistic
strategy
multiple
interaction
forces.
The
ion−conductive
exhibits
(1.42
×
10
−4
S
cm
−1
at
25
°C),
superior
stretchability
(≈1550%
elongation)
strength
(1.48
MPa).
Moreover,
resilience
possesses
self‐healing
ability.
sensor,
prepared
comprehensive
performance,
not
only
demonstrates
strain
sensitivity
but
also
captures
high‐quality
epidermal
signals
human
body
detection.
Additionally,
can
serve
electrode
devices
for
applications.
It
believed
provide
novel
opportunities
advancement
soft
ionotronics.
International Journal of Molecular Sciences,
Journal Year:
2024,
Volume and Issue:
25(5), P. 2675 - 2675
Published: Feb. 26, 2024
Load-bearing
biological
tissues,
such
as
cartilage
and
muscles,
exhibit
several
crucial
properties,
including
high
elasticity,
strength,
recoverability.
These
characteristics
enable
these
tissues
to
endure
significant
mechanical
stresses
swiftly
recover
after
deformation,
contributing
their
exceptional
durability
functionality.
In
contrast,
while
hydrogels
are
highly
biocompatible
hold
promise
synthetic
biomaterials,
inherent
network
structure
often
limits
ability
simultaneously
possess
a
diverse
range
of
superior
properties.
As
result,
the
applications
significantly
constrained.
This
article
delves
into
design
mechanisms
properties
various
tough
investigates
in
tissue
engineering,
flexible
electronics,
other
fields.
The
objective
is
provide
insights
fabrication
application
with
combined
stretchability,
toughness,
fast
recovery
well
future
development
directions
challenges.
ACS Applied Materials & Interfaces,
Journal Year:
2024,
Volume and Issue:
16(25), P. 32762 - 32772
Published: June 13, 2024
Currently,
the
development
of
hydrogels
with
excellent
mechanical
properties
(elasticity,
fatigue
resistance,
etc.)
and
conductive
can
better
meet
their
needs
in
field
flexible
sensor
device
applications.
Generally,
a
denser
cross-linking
density
tend
to
have
properties,
but
improvement
comes
at
expense
reduced
electrical
conductivity.
Directly
generating
CaCO3
hydrogel
prepolymer
not
only
increase
its
network
also
introduce
additional
ions
enhance
internal
ionic
strength,
which
is
beneficial
improving
conductivity
hydrogel.
It
still
big
challenge
directly
generate
static
solution
ensure
uniform
dispersion
Herein,
we
adopted
an
improved
preparation
method
that
generated
particles
be
evenly
dispersed
until
polymerization
completed.
Finally,
PAM/PVA/CaCO3
supertensile,
compressive,
toughness,
resistance
was
prepared.
In
addition,
presence
free
Na+
Cl–
gives
sensing
performance
monitor
daily
human
activities.
On
basis
application
information
communication,
further
deepened
this
by
combining
characteristics
themselves.
Combined
ASCII
code,
applied
exchange
encryption
decryption,
achieving
antitheft
function
smart
locks.
A
variety
integrated
broad
prospects
for
sensors,
highlighting
great
potential
human–computer
interaction
intelligent
protection.
