Journal of Applied Polymer Science,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 2, 2024
Abstract
Autonomic
self‐healing
films
have
shown
limited
mechanical
strength,
hindering
their
application
as
biomaterials,
particularly
in
skin
bioengineering.
To
address
this
challenge,
we
developed
polyvinyl
alcohol
(PVA)‐tannic
acid
(TA)‐based
membranes
with
improved
properties
and
strong
performance.
Using
a
blade
coating
method
freeze–thaw
cycles
(−10°C
for
1
h,
followed
by
room
temperature
thawing),
the
synthesized
demonstrated
tensile
strength
of
8.8
MPa
before
healing
7.6
after
healing,
achieving
an
88%
efficiency.
Membrane
thickness
showed
slight
reduction
from
465
to
432
μm
posthealing.
After
3000
bending
at
cm
radius,
maintained
flexibility
no
significant
changes
water
vapor
transmission
rate
(WVTR)
(7.66
g/m
2
·day)
or
oxygen
(OTR)
(0.13
3
/m
·day·bar).
These
results
underscore
membranes'
suitability
dynamic
environments,
combining
robust
excellent
capabilities.
The
PVA‐TA
present
promising
solution
advanced
bioengineering
applications.
Journal of the mechanical behavior of biomedical materials/Journal of mechanical behavior of biomedical materials,
Journal Year:
2024,
Volume and Issue:
151, P. 106391 - 106391
Results in Engineering,
Journal Year:
2024,
Volume and Issue:
21, P. 101945 - 101945
Published: Feb. 24, 2024
Scientists
have
explored
alternative
reinforcements
to
improve
the
mechanical
properties
of
composite
structures
in
recent
years
due
high
financial
and
environmental
costs
associated
with
synthesis
carbon
nanotubes
graphene
plates.
A
sandwich
beam
reinforced
nanorods
(CNRRCs)
synthesized
from
potato
waste
a
porous
core
is
examined
this
study.
The
nonlocal
strain
gradient
theory
general
are
applied
structure
under
axially
variable
force.
Based
on
sinusoidal
theory,
shear
deformation
used
calculate
displacement
fields
beams.
Equilibrium
equations
derived
using
higher
order
theory.
mixture
rule
determine
face
sheet,
including
Young's
modulus,
Poisson's
ratio.
axial
compression
force
external
work.
Ritz
method
different
boundary
conditions,
final
derived,
then
buckling
stiffness
matrices
finally,
solved
critical
load
determined.
An
analysis
for
conducted
made
waste.
In
addition,
various
parameters
such
as
parameter,
non-local
volume
fraction
nanorods,
thickness
ratio
discussed.
study,
recycled
materials
found
increase
beams
loads,
which
lower
than
more
economical
nanotubes.
Graphene
platelets
stiffness-to-cost
nanorods.
Carbon
other
hand,
cost
The International Journal of Lower Extremity Wounds,
Journal Year:
2024,
Volume and Issue:
unknown
Published: April 15, 2024
Nanohydrogel
wound
healing
refers
to
the
use
of
nanotechnology-based
hydrogel
materials
promote
wounds.
Hydrogel
dressings
are
made
up
a
three-dimensional
network
hydrophilic
polymers
that
can
absorb
and
retain
large
amounts
water
or
other
fluids.
Nanohydrogels
take
this
concept
further
by
incorporating
nanoscale
particles
structures
into
matrix.
These
nanoparticles
be
various
materials,
such
as
silver,
zinc
oxide,
derived
from
natural
substances
like
chitosan.
The
inclusion
provide
additional
properties
benefits
dressings.
designed
release
bioactive
substances,
growth
factors
drugs,
in
controlled
manner.
This
allows
for
targeted
delivery
therapeutics
site,
promoting
reducing
inflammation.
Nanoparticles
reinforce
structure
hydrogels,
improving
their
mechanical
strength
stability.
often
incorporate
antimicrobial
nanoparticles,
silver
oxide.
have
shown
effective
activity
against
wide
range
bacteria,
fungi,
pathogens.
By
them
dressings,
nanohydrogels
help
prevent
reduce
risk
infection
encapsulate
factors,
peptides,
sustained
therapeutic
agents
promotes
facilitating
cell
proliferation,
inflammation,
supporting
tissue
regeneration.
unique
nanohydrogels,
including
ability
maintain
moist
environment
deliver
agents,
accelerate
process.
creating
an
optimal
repair,
faster
more
efficient
Heliyon,
Journal Year:
2024,
Volume and Issue:
10(10), P. e31164 - e31164
Published: May 1, 2024
Considering
to
need
for
the
sensitive
and
destructive
industries
high
stiffness
low
weight,
an
experimental
free
vibration
tensile
test
results
of
a
five-layer
sandwich
plate
by
comparing
various
carbon
nano
structures
reinforcements
with
SMA
is
discussed.
The
effect
reinforcements,
including
nanostructures
(carbon
nanotubes
(CNT),
nanorods
(CNRs),
Graphene
platelets
(GPLs))
nitinol
shape
memory
alloy
(SMA)
wire
on
behavior
foam
core
investigated.
purpose
novelty
this
work
are
compare
different
vibrations
so
that
using
comparison,
one
can
choose
best
according
needs
desired
industry
more
suitable
economic
conditions.
1%
weight
fraction
epoxy
resin,
GPLs,
CNTs,
CNRs
increase
Young's
modulus
face
sheets
30%,
25%,
5.8%,
respectively.
In
work,
structure
model
be
suggested,
numerically
analyzed.
special
advantage
research
compared
previous
construction
model.
This
simple
modeling
preliminary
examination
five
layers
experimentally.
Also,
composite
made
vacuum
pump
method,
which
does
not
have
disadvantages
manual
method
completely
optimal.
At
first,
shear
moduli
unidirectional
glass
fiber
(UGF)
calculated
performing
test.
To
examine
all
aspects
during
construction,
in
article
separately
UGF,
then
cores
connected
glue.
following,
equations
motion
derived
refined
first-order
deformation
theory
(RFSDT)
employing
Hamilton's
principle.
Using
Halpin-Tsai
equation
extended
rule
mixture,
mechanical
properties
reinforced
obtained.
According
Brinson
model,
constitutive
presented.
influence
parameters
such
as
side
ratio,
thickness
CNRs,
GPLs
wire,
angle,
temperature
changes
dimensionless
fundamental
frequency
also
represented.
natural
orthotropic
plates
considering
higher
than
without
reinforcements.
By
increasing
aspect
ratio
(a/h),
increases,
while
decreases.
For
two-layer
square
angular
asymmetric
laminated
(-θ/θ),
minimum
occurred
at
placement
angle
approximately
equal
26
64
degrees.
highest
related
its
strength
because
it
placed
further
from
middle
plane.
plate,
whose
GPLs.
Polymers for Advanced Technologies,
Journal Year:
2025,
Volume and Issue:
36(4)
Published: March 28, 2025
ABSTRACT
Bone
repair
is
a
complex
biological
process
requiring
dynamic
interplay
between
cellular
mechanisms,
molecular
signaling,
and
environmental
factors.
The
intricate
stages
of
bone
healing,
including
hematoma
formation,
inflammation,
soft
callus
development,
hard
remodeling,
are
driven
by
coordinated
responses
pathways.
Proinflammatory
cytokines,
growth
factors,
the
extracellular
matrix
play
critical
roles
in
promoting
osteogenesis
angiogenesis.
Factors
such
as
age,
systemic
health,
mechanical
stability
significantly
influence
efficiency.
To
address
limitations
natural
advancements
regenerative
medicine
have
introduced
innovative
materials
like
nanocomposite
hydrogels,
which
mimic
microenvironment
enhance
function.
Semi‐interpenetrating
network
(semi‐IPN)
hydrogels
emerged
promising
tool
for
tissue
engineering.
Combining
crosslinked
non‐crosslinked
polymers,
these
offer
balance
stability,
functionality,
controlled
degradation.
Semi‐IPN
provide
structural
support,
facilitate
cell
attachment,
enable
sustained
release
bioactive
molecules.
Their
flexibility
adaptability
make
them
suitable
encapsulating
stem
cells
targeted
regeneration.
Moreover,
nonsurgical
surgical
scaffold
delivery
methods,
ranging
from
injectable
to
3D‐printed
magnetically
guided
scaffolds,
expanded
horizons
strategies,
reduced
invasiveness,
improved
patient
outcomes.
This
review
explores
dynamics
role
regeneration,
advanced
construction
strategies
semi‐IPN
repair.
By
integrating
polymer
science,
nanotechnology,
bioengineering,
represent
transformative
shift
addressing
defects,
paving
way
therapeutic
approaches
medicine.
With
ongoing
advancements,
technologies
hold
significant
potential
improve
effectiveness
accessibility
solutions.
Journal of the mechanical behavior of biomedical materials/Journal of mechanical behavior of biomedical materials,
Journal Year:
2025,
Volume and Issue:
169, P. 107040 - 107040
