Micro and Nanosystems,
Journal Year:
2024,
Volume and Issue:
16(4), P. 247 - 254
Published: Aug. 22, 2024
Background:
NiTi
(nickel-titanium)
alloy
wires
are
widely
used
in
orthodontics
due
to
their
unique
properties,
such
as
shape
memory
and
superelasticity.
However,
these
can
be
susceptible
corrosion
the
oral
environment,
which
compromise
mechanical
performance
longevity.
Zinc
tetraphenyl
porphyrin
(ZnTPP)
is
a
inhibitor
that
forms
protective
layer
on
aluminum
oxide
(Al2O3)
surface,
acting
barrier
against
corrosive
agents.
Objective:
The
electrodeposition
of
sacrificial
Al2O3
with
ZnTPP
was
carried
out
onto
Ni-
Ti
orthodontic
wire
enhance
resistance.
Methods:
10
mM
nitrate
dissolved
mL
0.1
M
phosphate
buffer
solution
(PBS),
an
electrolyte.
Firstly,
by
using
cyclic
voltammetry
potential
scanning
between
0
-2.0
V
at
scan
rate
50
mV/s
for
cycles.
Secondly,
1
PBS
ethanol
(1:1)
prepared
Electrodeposition
Al2O3/NiTi
achieved
through
window
Results:
ZnTPP/Al2O3/NiTi
displayed
potentiodynamic
polarization
resistance
412931
Ω,
high
stability
compared
bare
(396421
Ω).
Additionally,
measured
0.254
mm/year,
notably
lower
than
(0.540
mm/year).
This
decrease
attributed
presence
ZnTPP/Al2O3
film,
renders
electrically
insulative
significantly
increases
its
impedance
wire.
Conclusion:
bilayer
coating
has
proven
improve
wires.
Thus,
materials
considered
archwires
improved
stability.
Nanoscience & Nanotechnology-Asia,
Journal Year:
2024,
Volume and Issue:
14(3)
Published: March 26, 2024
Aim:
This
study
presents
a
novel
green
synthesis
approach
for
successfully
fabricating
silver-doped
palladium
nanoclusters
(Ag-Pd
NCs)
using
the
aqueous
leaf
extract
of
Strobilanthes
kunthiana
as
reducing
and
stabilizing
agent.
Background:
The
environmentally
benign
method
offers
sustainable
alternative
to
conventional
chemical
synthesis,
circumventing
hazardous
chemicals
minimizing
generation
toxic
byproducts.
Objectives:
successful
Ag-Pd
NCs
their
application
an
efficient
electrochemical
sensing
platform
determining
nitrofurantoin
(NFT).
Methods::
synthesized
were
extensively
characterized
by
diverse
analytical
techniques,
including
UV-Vis
spectroscopy,
X-ray
diffraction
(XRD),
field-emission
scanning
electron
microscopy
(FE-SEM),
energy-dispersive
spectroscopy
(EDS)
cyclic
voltammetry
(CV).
Results:
As-synthesized
employed
detection
NFT,
important
antibiotic
widely
used
in
clinical
applications.
demonstrated
remarkable
sensitivity
about
1.56
μA
μM−1
cm−2,
lowest
limit
(LOD)
3.2
μM
linear
range
determination
from
5
210
μM.
new
sensor
exhibited
excellent
stability
reproducibility,
making
it
suitable
practical
applications
real-world
samples.
Conclusions:
detecting
NFT
was
demonstrated.
combination
advanced
underscores
potential
these
nanomaterials
developing
friendly
sensors
pharmaceutical
analysis
diagnostics.
findings
presented
herein
will
contribute
growing
field
nanotechnology
development
healthcare
environmental
monitoring.
Sensing and Bio-Sensing Research,
Journal Year:
2024,
Volume and Issue:
45, P. 100678 - 100678
Published: July 27, 2024
In
this
study,
a
pioneering
electrochemical
sensor
was
developed
for
simultaneously
determining
nitrofurantoin
(NFT)
and
furazolidone
(FZD)
residues
in
food
municipal
wastewater
samples.
The
prepared
by
integrating
gold‑silver-alloy
nanocoral
clusters
(Au-Ag-ANCCs)
with
zinc
oxide
nanoparticles
(ZnO-NPs),
carbon
paste
electrode
(CPE)
polyethylene
(PEO)
nanocomposites.
surface
morphology
elemental
compositions
of
Au-Ag-ANCCs/ZnO-NPs-CPE/PEO
were
characterized
FT-IR,
XRD,
SEM,
EDX,
EIS,
CV.
showed
exceptional
performance
over
wide
linear
range,
from
1.0
pM
to
250
μM
NFT
0.9
nM
360
FZD.
detection
quantification
limits
found
be
0.26
0.88
0.023
0.076
FZD,
respectively.
addition,
the
exhibited
excellent
repeatability,
reproducibility,
selectivity,
long-lasting
stability.
When
applied
AZM
ENF
poultry,
fish,
honey,
dairy
products
wastewater,
it
recoveries
96.3–102.8%
relative
standard
deviations
between
1.87%
1.53%.
general,
represents
significant
advance
fight
against
antibiotic
residue
pollution.
