Modulation and Mechanisms of Cellulose‐Based Hydrogels for Flexible Sensors
SusMat,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 27, 2024
ABSTRACT
Flexible
sensors
exhibit
the
properties
of
excellent
shape
adaptability
and
deformation
ability,
which
have
been
applied
for
environmental
monitoring,
medical
diagnostics,
food
safety,
smart
systems,
human–computer
interaction.
Cellulose‐based
hydrogels
are
ideal
materials
fabrication
flexible
due
to
their
unique
three‐dimensional
structure,
renewability,
ease
processing,
biodegradability,
modifiability,
good
mechanical
properties.
This
paper
comprehensively
reviews
recent
advances
cellulose‐based
in
construction
sensor
applications.
The
characteristics,
mechanisms,
advantages
prepared
by
physical
cross‐linking,
chemical
cross‐linking
respectively
analyzed
summarized
detail.
focus
then
turns
research
development
hydrogel
sensors,
including
sensing
(pressure/strain,
humidity/temperature,
optical
sensing),
(chromium,
copper,
mercury
ion
sensing,
toxic
gas
nitrite
biosensing
(glucose,
antibody,
cellular
sensing).
Additionally,
limitations
along
with
key
challenges
future
directions,
discussed.
It
is
anticipated
that
this
review
will
furnish
invaluable
insight
advancement
novel
green,
facilitate
integration
as
a
fundamental
component
multifunctional
technologies,
thereby
expediting
design
innovative
near
future.
Язык: Английский
Direct Ink Writing of Conductive Hydrogels
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 29, 2025
Abstract
Direct
ink
writing
(DIW)
is
an
additive
manufacturing
technique
that
has
garnered
notable
interest
due
to
its
precise
and
consistent
printing
of
a
wide
range
materials,
such
as
viscoelastic
hydrogels,
pastes,
complex
composites,
by
adjusting
the
ink's
rheology.
This
material
flexibility
combined
with
ability
print
at
room
temperature
makes
DIW
ideal
for
diverse
applications
scalable
from
small
industrial
levels.
In
recent
years,
conductive
hydrogels
gained
significant
attention
across
various
fields,
ranging
biomedical
scaffolds
flexible
electronics.
Conductive
are
category
which
exhibit
conductivity
in
their
wet
and/or
dry
state.
Precursors
like
polymers,
metallic
nanoparticles,
carbon‐based
materials
can
be
used
induce
electronic
ionic
hydrogels.
review
presents
comprehensive
overview
demonstrating
printability
using
technique.
The
fundamentals
precursors
presented.
Following,
different
pathways
reaching
optimal
hydrogel
properties,
including
mechanical,
conductive,
rheological,
focus
on
synthesis
introduced.
Finally,
emerging
electronics
medicine
highlighted,
anticipated
challenges
advancement
printable
discussed.
Язык: Английский
Advanced Hydrogel Systems for Local Anesthetic Delivery: Toward Prolonged and Targeted Pain Relief
Gels,
Год журнала:
2025,
Номер
11(2), С. 131 - 131
Опубликована: Фев. 12, 2025
Local
anesthetics
(LAs)
have
been
indispensable
in
clinical
pain
management,
yet
their
limitations,
such
as
short
duration
of
action
and
systemic
toxicity,
necessitate
improved
delivery
strategies.
Hydrogels,
with
biocompatibility,
tunable
properties,
ability
to
modulate
drug
release,
extensively
explored
platforms
for
enhancing
LA
efficacy
safety.
This
narrative
review
explores
the
historical
development
LAs,
physicochemical
applications,
providing
a
foundation
understanding
integration
hydrogels
anesthetic
delivery.
Advances
thermoresponsive,
stimuli-responsive,
multifunctional
demonstrated
significant
potential
prolonging
analgesia
reducing
exposure
preclinical
studies,
while
early
findings
highlight
feasibility
thermoresponsive
hydrogel
formulations.
Despite
these
advancements,
challenges
burst
mechanical
instability,
regulatory
considerations
remain
critical
barriers
translation.
Emerging
innovations,
including
nanocomposite
hydrogels,
biofunctionalized
matrices,
smart
materials,
offer
solutions
limitations.
Future
research
should
focus
on
optimizing
formulations,
expanding
validation,
integrating
advanced
fabrication
technologies
3D
printing
artificial
intelligence-driven
design
enhance
personalized
management.
By
bridging
materials
science
pharmacology,
this
provides
comprehensive
perspective
current
trends
future
directions
hydrogel-based
systems.
Язык: Английский
Development of Hydrogels Fabricated via Stereolithography for Bioengineering Applications
Polymers,
Год журнала:
2025,
Номер
17(6), С. 765 - 765
Опубликована: Март 14, 2025
The
architectures
of
hydrogels
fabricated
with
stereolithography
(SLA)
3D
printing
systems
have
played
various
roles
in
bioengineering
applications.
Typically,
the
SLA
successively
illuminated
light
to
a
layer
photo-crosslinkable
hydrogel
precursors
for
fabrication
hydrogels.
These
can
be
classified
into
point-scanning
types
and
digital
micromirror
device
(DMD)
types.
form
layers
by
scanning
focused
light,
while
DMD
illuminate
2D
patterns
each
at
once.
Overall,
were
cost-effective
allowed
good
shape
fidelity
uniform
mechanical
properties.
As
result,
constructs
used
regenerate
tissues
develop
lab-on-a-chip
devices
native
tissue-like
models.
Язык: Английский
One-step 3D printing of flexible poly(acrylamide-co-acrylic acid) hydrogels for enhanced mechanical and electrical performance in wearable strain sensors
Scientific Reports,
Год журнала:
2025,
Номер
15(1)
Опубликована: Апрель 7, 2025
This
study
explored
the
synthesis
and
3D
printing
of
an
electrolytic
hydrogel
based
on
polyacrylamide
acrylic
acid
copolymer
(poly(AM-co-AA)),
using
lithium
phenyl-2,4,6-trimethylbenzoylphosphinate
(LAP)
as
a
photoinitiator,
along
with
N,N'-Methylene
bisacrylamide
(MBA)
sodium
alginate
(SA)
for
crosslinking.
The
matrix,
incorporated
electrolyte
fillers,
including
chloride
(NaCl),
calcium
dihydrate
(CaCl2·2H2O),
aluminum
trichloride
hexahydrate
(AlCl3·6H2O),
was
fabricated
via
one-step
approach
printed
LCD-3D
printer,
yielding
porous
structure
remarkable
water
absorption
capacity
tailored
mechanical
properties.
Scanning
electron
microscopy
(SEM)
analysis
NaCl
poly(AM-co-AA)
revealed
highly
surface
structure,
contributing
to
exceeding
800%.
electrical
properties
this
3D-printed
were
found
be
intermediate
between
those
MBA
crosslinked
SA.
exhibited
efficient
conductivity
flexibility,
making
it
well-suited
potential
use
in
strain
sensors
wearable
devices,
enabling
real-time
monitoring
human
activities,
such
finger
bending.
Язык: Английский