Biomacromolecules,
Journal Year:
2023,
Volume and Issue:
24(7), P. 3345 - 3356
Published: June 28, 2023
Oral
defects
lead
to
a
series
of
function
disorders,
severely
threatening
the
patients'
health.
Although
injectable
hydrogels
are
widely
studied
in
tissue
regeneration,
their
mechanical
performance
is
usually
stationary
after
implant,
without
further
self-adaption
toward
microenvironment.
Herein,
an
hydrogel
with
programmed
kinetics
instant
gelation
and
gradual
self-strengthening
along
outstanding
biodegradation
ability
developed.
The
fast
realized
through
rapid
Schiff
base
reaction
between
biodegradable
chitosan
aldehyde-modified
sodium
hyaluronate,
while
achieved
via
slow
redundant
amino
groups
on
epoxy-modified
hydroxyapatite.
resultant
also
possesses
multiple
functions
including
(1)
bio-adhesion,
(2)
self-healing,
(3)
bactericidal,
(4)
hemostasis,
(5)
X-ray
situ
imaging,
which
can
be
effectively
used
for
oral
jaw
repair.
We
believe
that
strategy
illustrated
here
will
provide
new
insights
into
dynamic
regulation
promote
application
regeneration.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(48)
Published: July 25, 2024
Abstract
Cellulose
consists
of
a
natural,
rigid
polymer
that
is
widely
used
to
improve
the
mechanical
and
water‐holding
properties
hydrogels.
However,
its
abundant
hydroxyl
groups
make
it
highly
absorbent
free
water,
leading
swelling
behavior.
This
increased
water
content
will
also
decrease
adhesive
performance.
In
this
study,
cellulose
successfully
hydrophobically
modified
reduce
absorption
water.
Gelatin
then
cross‐linked
with
through
Schiff‐base
reaction,
resulting
in
bound
content.
significantly
enhances
resistance
permeability,
improves
freeze–thaw
stability
hydrogel.
Due
internal
hydrophobicity,
molecules
can
quickly
penetrate
into
interior,
reducing
their
residence
time
on
hydrogel
surface.
allows
maintain
high
adhesion
natural
environments,
achieving
an
strength
up
3.0
MPa
wood
bamboo‐based
materials.
The
retain
even
after
prolonged
exposure
humid
environment.
Additionally,
Na
+
ions
enhance
electrical
conductivity
sensitivity
(gauge
factor
(GF)
=
1.51),
demonstrating
potential
applications
flexible
sensing.
Nano Letters,
Journal Year:
2024,
Volume and Issue:
24(2), P. 724 - 732
Published: Jan. 2, 2024
Photothermal
membrane
distillation
(PMD)
has
emerged
as
a
promising
and
sustainable
approach
for
seawater
desalination
wastewater
purification.
However,
the
wide
application
of
technique
is
severely
impeded
by
low
freshwater
production
fouling/wetting
issues.
Herein,
we
developed
an
advanced
hydrogel-engineered
with
simultaneously
enhanced
photothermal
conversion
capacity
desired
fouling
wetting
resistance
PMD.
By
synergies
Ti3C2Tx
MXene
nanosheets
tannic
acid–Fe3+
network
in
hydrogel,
was
endowed
excellent
surface
self-heating
ability,
yielding
highest
rate
(1.71
kg
m–2
h–1)
efficiency
among
fabricated
hydrogel
composite
membranes
under
1
sun
irradiation.
Meanwhile,
PMD
could
robustly
resist
oil-induced
surfactant-induced
wetting,
significantly
extending
lifespan
treating
contaminated
saline
water.
Furthermore,
when
desalinating
real
seawater,
exhibited
superior
durability
stable
vapor
flux
ion
rejection
(e.g.,
99.24%
boron)
100
h.
Small,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 5, 2025
Abstract
Addressing
the
diverse
environmental
demands
for
electronic
material
performance,
design
of
a
multifunctional
ionic
conductive
hydrogel
with
mechanical
flexibility,
anti‐freezing
capability,
and
antibacterial
characteristics
represents
an
optimal
solution.
Leveraging
Dead
Sea
effect
strong
hydrogen
bonding,
this
study
exploits
CaCl
2
abundant
hydroxyl
groups
in
phytic
acid
(PA)
to
induce
chain
entanglements,
thereby
constructing
complex,
multi‐crosslinked
network.
Furthermore,
PA
ternary
solvent
systems
(CaCl
/Glycerol/H
O)
synergistically
impart
excellent
strength,
toughness
(with
tensile
strength
8.93
MPa,
elongation
at
break
859.93%,
39.92
MJ
m
−3
),
high
electrical
conductivity,
antifreeze
properties,
strain
sensitivity
(gauge
factor
up
2.10)
hydrogels.
Remarkably,
structure
maintains
stability
even
after
undergoing
6000
loading‐unloading
cycles,
demonstrating
its
outstanding
fatigue
resistance.
Upon
receiving
external
stimuli,
exhibits
response
time
126
ms,
making
it
ideal
dynamic
monitoring
human
motion
signals.
This
offers
novel
insight
into
potential
application
hydrogels
as
flexible
sensors
challenging
environments.
Advanced Materials,
Journal Year:
2023,
Volume and Issue:
35(49)
Published: June 3, 2023
Bioadhesives
with
antimicrobial
properties
enable
easier
and
safer
treatment
of
wounds
as
compared
to
the
traditional
methods
such
suturing
stapling.
Composed
natural
or
synthetic
polymers,
these
bioadhesives
seal
facilitate
healing
while
preventing
infections
through
activity
locally
released
drugs,
nanocomponents,
inherently
polers.
Although
many
different
materials
strategies
are
employed
develop
bioadhesives,
design
biomaterials
necessitates
a
prudent
approach
achieving
all
required
including
optimal
adhesive
cohesive
properties,
biocompatibility,
can
be
challenging.
Designing
tunable
physical,
chemical,
biological
will
shed
light
on
path
for
future
advancement
properties.
In
this
review,
requirements
commonly
used
developing
discussed.
particular,
their
synthesis
experimental
clinical
applications
variety
organs
reviewed.
Advances
in
pave
way
better
management
increase
positive
outcomes.
