Türk doğa ve fen dergisi :/Türk doğa ve fen dergisi,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 26, 2024
This
study
was
conducted
to
investigate
the
catalytic
effects
of
ZnO,
prepared
using
ethanolic
turmeric
extract,
on
hydrolysis
reaction
NaBH4.
The
generated
ZnO
particles
were
examined
scanning
electron
microscopy
(SEM),
energy
dispersive
X-ray
analysis
(EDX),
and
transmission
(TEM).
Furthermore,
Ultraviolet
spectroscopy
(UV)
zeta
potential
measurements
for
nanoparticles.
results
demonstrated
that
green
synthesized
nanoparticles
exhibited
effective
behavior
in
Surface Engineering,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 16, 2025
Orthopaedic
implants
commonly
use
titanium
and
its
alloys
because
of
their
superior
mechanical
properties,
corrosion
resistance
biocompatibility.
However,
these
metal
have
limited
application,
hindered
by
poor
osseointegration
the
potential
risk
implant-associated
infections.
To
overcome
obstacles,
this
study
intends
to
address
issues
integrating
haemocompatible
antibacterial
coatings
made
from
green
synthesised
zinc
oxide
nanoparticles,
using
Saraca
asoca
leaf
extract
(SA-ZnO).
These
nanoparticles
may
serve
improve
osteoconductivity
limit
bacterial
growth
at
site
implant.
The
prepared
(SA-ZnO)
were
characterized
various
techniques
then
integrated
with
polyvinyl
alcohol
(PVA),
resulting
in
(SA-ZnO/PVA)
nanocomposite.
nanocomposites
further
coated
onto
Titanium
alloy
substrate
(Ti-6Al-4V)
doctor's
blade
technique
morphologically
characterized.
Atomic
force
microscopy
analysis
demonstrated
that
SA-ZnO/PVA
nanocomposite
exhibited
favourable
micro-roughness,
enhancing
cell
attachment
promoting
protein
adsorption,
which
is
crucial
for
effective
osseointegration.
Additionally,
haemocompatibility
tests
no
adverse
effects
on
blood
cells,
indicating
coating's
compatibility
biological
systems.
Antimicrobial
studies
showed
a
significant
zone
inhibition
against
both
gram-negative
gram-positive
bacteria,
highlighting
coatings.
Thus,
findings
imply
ZnO
amalgamated
(PVA)
as
promising
surface
coating
materials,
can
be
used
effectively
orthopaedic
reduce
adherence
growth,
thus
lowering
incidence
postoperative
infections
overall
implant
integration
success.
Polymers,
Journal Year:
2024,
Volume and Issue:
16(21), P. 3061 - 3061
Published: Oct. 30, 2024
The
escalating
environmental
concerns
associated
with
conventional
plastic
packaging
have
accelerated
the
development
of
sustainable
alternatives,
making
food
a
focus
area
for
innovation.
Bioplastics,
particularly
polyhydroxyalkanoates
(PHAs),
emerged
as
potential
candidates
due
to
their
biobased
origin,
biodegradability,
and
biocompatibility.
PHAs
stand
out
good
mechanical
medium
gas
permeability
properties,
them
promising
materials
applications.
In
parallel,
zinc
oxide
(ZnO)
nanoparticles
(NPs)
gained
attention
antimicrobial
properties
ability
enhance
barrier
(bio)polymers.
This
review
aims
provide
comprehensive
introduction
research
on
PHA/ZnO
nanocomposites.
It
starts
importance
current
challenges
packaging,
followed
by
discussion
opportunities
bioplastics
PHAs.
Next,
synthesis,
application
areas
ZnO
NPs
are
discussed
introduce
use
in
(bio)plastic
packaging.
Early
nanocomposites
has
focused
solvent-assisted
production
methods,
whereas
novel
technologies
can
offer
additional
possibilities
regard
industrial
upscaling,
safer
or
cheaper
processing,
more
specific
incorporation
matrix
surface
PHA
films
fibers.
Here,
solvent
casting,
melt
electrospinning,
centrifugal
fiber
spinning,
miniemulsion
encapsulation,
ultrasonic
spray
coating
produce
is
explained.
Finally,
an
overview
given
reported
effects
NP
thermal,
mechanical,
barrier,
UV
based
poly(3-hydroxybutyrate),
poly(3-hydroxybutyrate-co-3-hydroxyvalerate),
poly(3-hydroxybutyrate-co-3-hydroxyhexanoate).
We
conclude
that
functionality
be
improved
optimizing
process
complex
interplay
between
intrinsic
dispersion
quality,
matrix–filler
interactions,
crystallinity.
Further
regarding
efficiency
migration
(simulants)
End-of-Life
will
determine
market
active
material.
Catalysts,
Journal Year:
2024,
Volume and Issue:
14(12), P. 946 - 946
Published: Dec. 20, 2024
This
research
aims
to
analyze
the
improvement
in
photocatalytic
properties
of
ZnO
nanoparticles
by
incorporating
Gd.
In
order
understand
influence
Gd
into
matrix,
activity
material
is
compared
at
various
concentrations.
Different
doping
concentrations
ranging
from
0
0.075
are
incorporated
and
synthesized
ZnO-Gd
nanocomposites
investigated
using
structural,
morphological,
optical
analyses
XRD,
SEM,
UV-vis
spectroscopy,
respectively.
The
performance
determined
via
degradation
organic
contaminants
under
visible
light.
Regarding
latter,
results
suggest
that
efficiency
increases
with
increasing
levels
up
an
optimal
concentration.
enhancement
Gd-doped
explained,
along
mechanism
related
availability
new
pathways
for
charge
carrier
recombination.
Among
all
them,
catalyst
exhibits
highest
which
degrades
89%
MB
dye
after
being
irradiated
UV
light
120
min.
However,
pure
only
40%
within
same
testing
conditions.
closing,
this
work
confirms
applicability
as
photocatalysts
cleaning
environment
wastewater
treatment.
