ACS Applied Materials & Interfaces,
Год журнала:
2023,
Номер
15(8), С. 11042 - 11052
Опубликована: Фев. 15, 2023
Ionotronic
hydrogels
have
attracted
significant
attention
in
emerging
fields
such
as
wearable
devices,
flexible
electronics,
and
energy
devices.
To
date,
the
design
of
multifunctional
ionotronic
with
strong
interfacial
adhesion,
rapid
self-healing,
three-dimensional
(3D)
printing
processability,
high
conductivity
are
key
requirements
for
future
Herein,
we
report
rational
facile
synthesis
3D
printable,
self-adhesive,
conductive
based
on
synergistic
dual
reversible
interactions
poly(vinyl
alcohol),
borax,
pectin,
tannic
acid.
Multifunctional
exhibit
adhesion
to
various
substrates
different
roughness
chemical
components,
including
porcine
skin,
glass,
nitrile
gloves,
plastics
(normal
strength
55
kPa
skin).
In
addition,
intrinsic
ionic
imparting
strain-sensing
properties
a
gauge
factor
2.5
up
wide
detection
range
approximately
2000%,
well
improved
self-healing
behavior.
Based
these
properties,
further
demonstrate
use
process
implementing
complex
patterns
strain
sensors
human
motion
detection.
This
study
is
expected
provide
new
avenue
hydrogels,
enabling
their
potential
applications
healthcare
Advanced Functional Materials,
Год журнала:
2023,
Номер
33(29)
Опубликована: Апрель 16, 2023
Abstract
Critical‐sized
bone
defects,
especially
for
irregular
shapes,
remain
a
significant
challenge
in
orthopedics.
Although
various
biomaterials
are
developed
regeneration,
their
application
repair
of
defects
is
limited
by
the
complicated
preparation
procedures
involved,
and
lack
shape‐adaptive
capacity,
physiological
adhesion,
potent
osteogenic
bioactivity.
In
present
study,
simple
strategy
precipitation
introducing
tannic
acid
(TA)
with
abundant
phenolic
hydroxyl
groups
Fe
3
O
4
nanoparticles,
as
metal‐phenolic
networks
(MPN),
to
easily
prepare
fast
gelling,
shape‐adaptive,
highly
adhesive
regenerated
silk
fibroin
(RSF)/TA/Fe
hydrogel
system
that
can
respond
static
magnetic
field
(SMF).
The
RSF/TA/Fe
exhibits
sufficient
adhesion
biological
microenvironments
good
effect
vitro
vivo,
under
an
external
SMF,
thus,
be
applied
critical‐sized
defects.
Moreover,
bioinformatics
analysis
reveals
synergistic
mechanism
NPs
SMF
on
effects
promotion
osteoblast
differentiation
via
activation
cyclic
guanosine
monophosphate
(cGMP)/protein
kinase
G
(PKG)/extracellular
signal‐regulated
(ERK)
signaling
pathway.
This
study
provides
promising
biomaterial
potential
clinical
future
treatment
(irregular)
Advanced Functional Materials,
Год журнала:
2023,
Номер
33(52)
Опубликована: Сен. 13, 2023
Abstract
A
self‐powered
and
sustainable
traffic
monitoring
system
is
highly
required
for
future
urban
development.
Herein,
self‐healable
piezoresistive
sensors
triboelectric
nanogenerators
(TENGs)
are
constructed
by
in
situ
polymerization
of
polyvinyl
alcohol‐polyacrylamide
double
network
hydrogel
the
presence
sodium
alginate
tannic
acid‐modified
cellulose
nanocrystals
(denoted
as
PPC)
all‐weather
intelligent
applications.
Because
hydrogen
bonding
boron
ester
bonding,
resultant
PPC‐based
strain
sensor
can
rapidly
self‐heal
restore
its
sensing
ability
within
1
min
with
a
self‐healing
efficiency
97.4%.
Based
on
effect,
ions
endow
relatively
high
gauge
factor
8.39,
which
monitor
motion
fatigue
drivers.
triboelectrification
TENG
detect
instantaneous
vehicle
speed,
judge
accident
liability,
evaluate
weight,
alert
driver
to
prevent
accidents
caused
drowsy
driving.
After
partially
replacing
water
PPC
glycerin,
resulting
exhibits
stable
performance
at
temperatures
ranging
from
‐30
40
°C,
ensuring
ability.
The
promising
security
cities.
ACS Applied Materials & Interfaces,
Год журнала:
2023,
Номер
15(8), С. 11042 - 11052
Опубликована: Фев. 15, 2023
Ionotronic
hydrogels
have
attracted
significant
attention
in
emerging
fields
such
as
wearable
devices,
flexible
electronics,
and
energy
devices.
To
date,
the
design
of
multifunctional
ionotronic
with
strong
interfacial
adhesion,
rapid
self-healing,
three-dimensional
(3D)
printing
processability,
high
conductivity
are
key
requirements
for
future
Herein,
we
report
rational
facile
synthesis
3D
printable,
self-adhesive,
conductive
based
on
synergistic
dual
reversible
interactions
poly(vinyl
alcohol),
borax,
pectin,
tannic
acid.
Multifunctional
exhibit
adhesion
to
various
substrates
different
roughness
chemical
components,
including
porcine
skin,
glass,
nitrile
gloves,
plastics
(normal
strength
55
kPa
skin).
In
addition,
intrinsic
ionic
imparting
strain-sensing
properties
a
gauge
factor
2.5
up
wide
detection
range
approximately
2000%,
well
improved
self-healing
behavior.
Based
these
properties,
further
demonstrate
use
process
implementing
complex
patterns
strain
sensors
human
motion
detection.
This
study
is
expected
provide
new
avenue
hydrogels,
enabling
their
potential
applications
healthcare
