New Journal of Chemistry,
Год журнала:
2024,
Номер
48(48), С. 20296 - 20303
Опубликована: Янв. 1, 2024
A
simple,
low-cost,
and
sustainable
pencil
graphite
electrode
modified
with
Co
3
O
4
@biochar
is
proposed
for
the
accurate
detection
of
sunset
yellow
in
beverages.
Biosensors,
Год журнала:
2024,
Номер
14(5), С. 229 - 229
Опубликована: Май 4, 2024
In
this
work,
UiO-66-NH2/GO
nanocomposite
was
prepared
using
a
simple
solvothermal
technique,
and
its
structure
morphology
were
characterized
field
emission
scanning
electron
microscopy
(FE-SEM),
energy-dispersive
X-ray
spectroscopy
(EDS),
diffraction
(XRD).
An
enhanced
electrochemical
sensor
for
the
detection
of
epirubicin
(EP)
proposed,
which
utilized
nanocomposite-modified
screen-printed
graphite
electrode
(UiO-66-NH2/GO/SPGE).
The
improved
performance
SPGE
towards
redox
reaction
EP.
Under
optimized
experimental
conditions,
demonstrates
remarkable
limit
(LOD)
0.003
µM
linear
dynamic
range
from
0.008
to
200.0
µM,
providing
highly
capable
platform
sensing
Furthermore,
simultaneous
electro-catalytic
oxidation
EP
topotecan
(TP)
investigated
at
UiO-66-NH2/GO/SPGE
surface
utilizing
differential
pulse
voltammetry
(DPV).
DPV
measurements
revealed
presence
two
distinct
peaks
TP,
with
peak
potential
separation
200
mV.
Finally,
successfully
quantitative
analysis
TP
in
pharmaceutical
injection,
yielding
satisfactory
results.
Sensors and Actuators A Physical,
Год журнала:
2024,
Номер
368, С. 115088 - 115088
Опубликована: Фев. 1, 2024
The
manuscript
provides
a
comprehensive
study
of
the
design
and
utilization
graphene-based
prototypes
designed
to
detect
catechol
molecules.
Graphene
has
been
one
pioneering
nanomaterials
in
current
era
due
its
exceptional
electromechanical
thermal
characteristics.
Because
remarkable
aspect
ratio
charge
carrier
properties,
it
used
various
physicochemical
forms
develop
electrodes
for
electrochemical
sensing
applications.
Catechol
represents
toxic
organic
compounds
that
is
present
naturally
occurring
fruits
vegetables.
Exposure
catechol,
even
small
amounts,
causes
disastrous
nerve-related
issues.
This
paper
underscores
research
conducted
on
detecting
molecules
using
certain
graphene
allotropes
like
bare
graphene,
oxide,
reduced
oxide.
also
mixed
with
other
processing
materials
form
polymers
pure
nanocomposite
sensors.
Each
these
robust
efficient
regards
their
linear
range,
sensitivity,
operating
values,
response
time.
last
part
elucidates
challenges
proposes
potential
remedies.
International Journal of Electrochemical Science,
Год журнала:
2024,
Номер
19(7), С. 100621 - 100621
Опубликована: Май 3, 2024
In
the
present
work,
CeO2
nanoparticles
(CeO2
NPs)
were
prepared
by
hydrothermal
method
and
crystal
structure
morphology
analysis
studied
using
a
series
of
characterizations.
Then,
screen-printed
carbon
electrode
(SPCE)
modified
with
NPs
was
employed
to
develop
simple
novel
sensor
for
sulfite
determination
in
water
samples.
The
NPs/SPCE
showed
significant
current
response
oxidation.
use
developed
differential
pulse
voltammetry
(DPV)
provides
wide
linear
range
(0.08
870.0
µM)
low
limit
detection
(LOD)
(0.023
µM).
Finally,
results
samples
good
recoveries
between
96.7-102.7%
relative
standard
deviation
(RSD)
less
than
3.6%.
Biosensors,
Год журнала:
2023,
Номер
13(5), С. 529 - 529
Опубликована: Май 8, 2023
Considering
the
increasing
concern
for
food
safety,
electrochemical
methods
detecting
specific
ingredients
in
are
currently
most
efficient
method
due
to
their
low
cost,
fast
response
signal,
high
sensitivity,
and
ease
of
use.
The
detection
efficiency
sensors
is
determined
by
electrode
materials’
characteristics.
Among
them,
three-dimensional
(3D)
electrodes
have
unique
advantages
electronic
transfer,
adsorption
capacity
exposure
active
sites
energy
storage,
novel
materials,
sensing.
Therefore,
this
review
begins
outlining
benefits
drawbacks
3D
compared
other
materials
before
going
into
more
detail
about
how
synthesized.
Next,
different
types
outlined
together
with
common
modification
techniques
enhancing
performance.
After
this,
a
demonstration
safety
applications,
such
as
components,
additives,
emerging
pollutants,
bacteria
food,
was
given.
Finally,
improvement
measures
development
directions
discussed.
We
think
that
will
help
creation
new
offer
fresh
perspectives
on
achieve
extremely
sensitive
area
safety.