Advanced Biology,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 14, 2024
Abstract
Stimuli‐responsive
hydrogels
have
the
capability
to
alter
their
state
in
response
changes
physiological
signals
within
application
environment,
providing
distinct
benefits
drug
delivery
applications.
Here,
acidic
pH
typically
found
acutely
infected
wounds
can
be
effectively
managed
by
incorporating
a
pH‐responsive
Ag
+
loaded
system
hydrogel,
thereby
ensuring
efficient
use
and
preventing
potential
toxicity
from
sudden
release
of
silver
ions.
The
antimicrobial
composite
hydrogel
HAMA/GelMA‐CA/Ag
provides
some
tissue
adhesion
accelerates
wound
healing.
GelMA‐CA
is
synthesized
modifying
gelatin
methacryloyl
(GelMA)
with
caffeic
acid
(CA),
while
hyaluronic
(HAMA)
introduced
prepare
double
network
hydrogel.
Silver
nitrate
then
make
it
through
formation
coordination
between
polyphenolic
structure
exhibited
excellent
antioxidant
properties
strong
activity
against
both
Staphylococcus
aureus
(S.
aureus)
Escherichia
coli
(E.
coli).
Furthermore,
accelerated
promotion
healing
rat
model
S.
aureus‐infected
wounds.
In
conclusion,
promising
bioactive
material
that
used
as
dressing
promote
Gels,
Journal Year:
2025,
Volume and Issue:
11(4), P. 233 - 233
Published: March 23, 2025
The
practical
application
of
flexible
sensors
in
sound
detection
is
significantly
hindered
by
challenges
such
as
information
isolation,
fragmentation,
and
low
fidelity.
To
address
these
challenges,
this
work
developed
a
composite
hydrogel
via
one-pot
method,
employing
polyvinyl
alcohol
(PVA)
the
first
network,
polyacrylic
acid
(PAA)
second
two-dimensional
nanomaterials—reduced
graphene
oxide
(rGO)—generated
through
redox
reaction
polydopamine
(PDA)
(GO)
conductive
fillers.
uniformly
distributed
rGO
within
forms
an
efficient
endowing
material
with
high
sensitivity
(GF
=
0.64),
excellent
conductivity
(8.15
S
m−1),
rapid
response
time
(350
ms),
outstanding
stability.
synergistic
interaction
between
PDA
PAA
modulates
hydrogel’s
adhesion
(0.89
kPa),
enabling
conformal
attachment
to
skin
surfaces.
designed
rGO@PVA-PAA
hydrogel-based
sensor
effectively
monitors
vibrations
across
diverse
frequencies
originating
from
five
vocal
cavities
(head,
nasal,
oral,
laryngeal,
thoracic
cavities)
during
singing.
Integrated
multi-position
synchronization
Bluetooth
wireless
sensing
technologies,
system
achieves
coordinated
monitoring
multiple
cavities.
Furthermore,
demonstrates
versatility
detecting
physiological
signals,
including
electrocardiograms,
subtle
vibrations,
multi-scale
body
movements,
highlighting
its
broad
applicability
biomedical
motion-sensing
applications.
ACS Sustainable Chemistry & Engineering,
Journal Year:
2024,
Volume and Issue:
13(1), P. 423 - 435
Published: Dec. 18, 2024
3D
printing
of
cellulose
acetate
(CA)-based,
sustainable,
thermally
stable
nanocomposites
is
challenging
due
to
their
fast
drying,
nozzle
clogging,
and
complex
rheological
behavior.
In
this
study,
we
developed
an
extrusion-printable
ink
based
on
CA
nanocrystals
(CNCs)
using
a
trisolvent
wet
blending
method,
followed
by
postprinting
pore-inducing
processing
technique.
The
performed
well
in
both
tensile-
compression-based
mechanical
tests.
Moreover,
the
demonstrated
malleable
deformation
during
compression
testing
without
any
premature
fracture,
unlike
commercial
commodity
plastics.
thermal
stability
was
assessed
thermogravimetric
analysis,
showing
∼
28
°C
improvement
onset
degradation
temperature
after
addition
5
wt
%
CNCs.
Solvent
tolerance
tests
against
various
solvents
indicated
excellent
solvent
resistance.
lightweight
showed
no
deterioration,
even
long-term
exposure
water
vapor.
Finally,
anticorrosion
behavior
samples
evaluated
as
coating
material
for
metal
(Al),
demonstrating
protection
corrosive
acid
vapors.
Thus,
application
3D-printed
exhibits
significant
promise
implementation
fields
lightweight,
anticorrosive
engineering
materials.
ACS Sustainable Chemistry & Engineering,
Journal Year:
2024,
Volume and Issue:
12(52), P. 18679 - 18690
Published: Dec. 16, 2024
Hydrogels
are
ideal
lubricants
due
to
their
hydrophilicity
and
ability
mitigate
issues
such
as
creep
leakage.
Based
on
the
diversity
of
application
environments,
it
is
crucial
develop
hydrogels
with
adjustable
lubrication
that
can
adjust
properties
by
changing
in
external
environment.
However,
they
still
face
challenges
balancing
responsiveness,
efficacy,
safety.
This
study
presents
a
pH-responsive
hydrogel
prepared
from
polyvinylpyrrolidone
phytic
acid,
addition
MXene
glycerol
enhance
its
tribological
performance.
The
optimal
contents
for
peak
efficiency
found
be
5
mg/mL
wt
%,
respectively.
lubricant
maintain
low-friction
state
without
failure
long-term
testing
3
h,
achieving
coefficient
friction
(COF)
0.01.
synergistic
effect
reached
reduction
69%
wear
resistance
improvement
up
96%.
Moreover,
COF
regulated
adjusting
pH
value.
also
stands
out
robust
self-healing,
injectability,
biocompatibility,
making
an
excellent
candidate
advanced
biomedical
applications.
Advanced Biology,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 14, 2024
Abstract
Stimuli‐responsive
hydrogels
have
the
capability
to
alter
their
state
in
response
changes
physiological
signals
within
application
environment,
providing
distinct
benefits
drug
delivery
applications.
Here,
acidic
pH
typically
found
acutely
infected
wounds
can
be
effectively
managed
by
incorporating
a
pH‐responsive
Ag
+
loaded
system
hydrogel,
thereby
ensuring
efficient
use
and
preventing
potential
toxicity
from
sudden
release
of
silver
ions.
The
antimicrobial
composite
hydrogel
HAMA/GelMA‐CA/Ag
provides
some
tissue
adhesion
accelerates
wound
healing.
GelMA‐CA
is
synthesized
modifying
gelatin
methacryloyl
(GelMA)
with
caffeic
acid
(CA),
while
hyaluronic
(HAMA)
introduced
prepare
double
network
hydrogel.
Silver
nitrate
then
make
it
through
formation
coordination
between
polyphenolic
structure
exhibited
excellent
antioxidant
properties
strong
activity
against
both
Staphylococcus
aureus
(S.
aureus)
Escherichia
coli
(E.
coli).
Furthermore,
accelerated
promotion
healing
rat
model
S.
aureus‐infected
wounds.
In
conclusion,
promising
bioactive
material
that
used
as
dressing
promote
