Nanomaterials,
Journal Year:
2025,
Volume and Issue:
15(9), P. 667 - 667
Published: April 27, 2025
Halloysite
nanoclay
(HNC)
and
as-polymerized
polytetrafluoroethylene
powder
(PTFE)
were
introduced
into
biodegradable
polylactic
acid
(PLA)
via
a
melt
mixing
technique
to
enhance
its
mechanical,
rheological
properties
foaming
ability.
The
synergetic
effects
of
these
fillers
on
the
morphological,
thermal,
PLA
investigated.
Results
indicated
that
tensile
improved
in
comparison
neat
PLA.
Differential
Scanning
Calorimetry
(DSC)
revealed
decrease
crystallization
time
with
increasing
filler
concentration,
indicating
strong
nucleating
effect
crystallization.
Extensional
flow
tests
showed
strain
hardening
composites
is
influenced
by
fillers,
PTFE
particularly
exhibiting
more
pronounced
effect,
attributed
nanofibrillation
entanglement
during
processing.
addition
dual-filler
system
strength
viscosity
PLA,
resulting
foams
decreased
cell
size
increased
density.
RSC Advances,
Journal Year:
2025,
Volume and Issue:
15(9), P. 6753 - 6763
Published: Jan. 1, 2025
This
study
explores
an
advanced
approach
to
enhancing
the
antimicrobial
efficacy
and
drug
release
of
poly(lactic
acid)
(PLA)
scaffolds
through
strategic
incorporation
cellulose
nanocrystals
(CNC).
Materials,
Journal Year:
2025,
Volume and Issue:
18(5), P. 1143 - 1143
Published: March 4, 2025
Asphalt
pavement
has
become
a
vital
component
of
modern
highway
construction
due
to
its
high
wear
resistance,
short
period,
economic
viability,
and
excellent
skid
resistance.
However,
increasing
traffic
volume
heightened
the
structural
performance
requirements
asphalt
pavement,
especially
during
compaction.
The
compaction
degree
mixtures
emerged
as
key
indicator
for
assessing
quality.
This
study
explores
relationship
between
internal
evolution
their
performance,
focusing
on
motion
behavior
coarse
aggregates.
To
achieve
this,
wireless
smart
aggregate
was
developed
using
3D
printing
technology
simulate
enable
real-time
monitoring
Compaction
experiments,
including
Superpave
gyratory
wheel
rolling,
were
conducted
with
different
gradations
(e.g.,
AC-13
AC-20).
dynamic
responses
aggregates
analyzed
identify
patterns.
results
show
that
method
more
accurately
replicates
observed
in
road
construction.
Additionally,
mixture
gradation
significantly
affects
provides
insights
into
microscale
connection
contributing
improved
quality
efficiency.
Orthopedic
implants
play
a
vital
role
in
restoring
function
patients
with
bone
and
joint
disorders,
yet
improving
their
biocompatibility
mechanical
strength
remains
challenge.
This
study
evaluates
the
vivo
performance
of
3D-printed
poly
L-lactic
acid
(PLA)
AZ31
magnesium
(Mg)
alloy
coated
titanium-zirconium
(Ti-Zr)
titanium
hydroxyapatite
(Ti-HA)
nanocomposites
using
Wistar
rat
model.
The
implants'
degradation
rates
over
60
days
were
observed,
Mg
showing
reduced
(25
32%,
respectively)
compared
to
uncoated
materials.
Nano-CT
analysis
confirmed
progressive
regeneration,
healing
from
10-15%
at
day
30
60-70%
60.
Histological
revealed
osteoblast
osteoclast
activity,
indicating
effective
remodeling.
These
findings
suggest
that
Ti-Zr
Ti-HA
nanocomposite-coated
offer
enhanced
corrosion
resistance,
stability,
biocompatibility.
study's
potential
enhance
efficacy
orthopedic
therapies
advance
creation
functional
fulfill
patient
requirements
superior
performance,
durability,
compliance.
Further
optimization
may
establish
these
coatings
as
promising
candidates
for
clinical
applications.
