Journal of Electrical and Computer Engineering,
Journal Year:
2024,
Volume and Issue:
2024(1)
Published: Jan. 1, 2024
Dopamine
(3,4‐dihydroxyphenethylamine)
(DA)
plays
an
important
role
in
influencing
emotions,
pleasure
sensations,
concentration,
pain,
and
coordination
of
body
movements.
However,
abnormal
levels
DA
the
brain
can
lead
to
Parkinson’s,
Alzheimer’s,
or
schizophrenia
diseases.
A
biosensor
is
defined
as
analytical
tool
that
combines
certain
biological
recognition
components
with
a
physical
transducer.
comprehensive
study
was
conducted
enhance
performance
detection
by
incorporating
reduced
graphene
oxide
(rGO),
polypyrrole
(PPy),
nickel
(NiO)
into
glassy
carbon
electrode
(GCE).
were
measured
using
cyclic
voltammetry
(CV)
three‐electrode
configuration.
Material
characterization
evaluated
scanning
electron
microscopy
(SEM)
Fourier
transform
infrared
spectroscopy
(FTIR).
The
results
obtained
indicate
PPy/rGO/NiO/GCE
has
limit
0.195
mM
sensitivity
25.887
−1
cm
−2
for
linear
range
0.01–1
mM.
ACS Applied Nano Materials,
Journal Year:
2023,
Volume and Issue:
6(20), P. 19403 - 19413
Published: Oct. 12, 2023
The
excessive
use
of
gatifloxacin
(GAT)
can
seriously
pollute
the
environment
and
damage
human
health.
Therefore,
reliable
detection
its
concentration
is
essential
for
environmental
protection
physical
Herein,
an
efficient
stable
voltammetric
sensor
based
on
zirconium-based
metal–organic
framework/carboxylated
multiwalled
nanotube
nanocomposites
(UiO-66/MWCNT-COOH)
was
constructed
determination
GAT.
morphologies,
microstructures,
electrochemical
properties
UiO-66/MWCNT-COOH
were
investigated
by
using
various
microscopic,
spectroscopic,
techniques.
showed
good
electrocatalytic
activity
GAT
oxidation
with
remarkable
response
signals,
which
primarily
attributed
to
synergistic
effect
from
UiO-66
MWCNT-COOH.
Electrochemical
kinetics
studies
revealed
that
irreversible
diffusion-limited
reaction
involving
two
protons
electrons.
anodic
peak
current
linearly
correlated
in
range
0.05
10
μM
a
low
limit
0.0075
μM.
Moreover,
demonstrated
high
selectivity,
reproducibility,
repeatability
as
well
extraordinary
long-term
stability
(at
least
7
weeks).
proposed
reliably
detected
trace
effluent,
milk,
serum,
eye
drops
satisfactory
recoveries.
Together
outstanding
merits
such
cost,
robust
response,
short
assay
time,
sensitivity,
shows
enormous
prospects
situ
multiple
antibiotics.
Journal of Materials Chemistry B,
Journal Year:
2023,
Volume and Issue:
11(48), P. 11600 - 11611
Published: Jan. 1, 2023
Novel
constructed
calcium
tungstate
microspheres
modified
on
glassy
carbon
electrodes
(CTMs/GCE)
employed
for
the
electrochemical
quantification
of
antibiotic
drug
nitrofurantoin
with
excellent
sensitivity,
selectivity,
and
low
detection
limit.
Critical Reviews in Analytical Chemistry,
Journal Year:
2024,
Volume and Issue:
unknown, P. 1 - 19
Published: April 24, 2024
Graphene,
renowned
for
its
exceptional
physicochemical
attributes,
has
emerged
as
a
favored
substrate
integrating
wide
array
of
inorganic
and
organic
materials
in
scientific
endeavors
innovations.
Electrochemical
graphene-based
nanocomposite
sensors
have
been
developed
by
incorporating
diverse
nanoparticles
into
graphene,
effectively
immobilized
onto
electrodes
through
various
techniques.
These
detected
quantified
electroactive
species
samples.
This
review
delves
using
graphene
nanocomposites
to
fabricate
electrochemical
sensors,
leveraging
the
electrical,
mechanical,
thermal
properties
inherent
derivatives.
showcase
electrocatalytic
activity,
substantial
surface
area,
superior
electrical
conductivity,
adsorption
capabilities,
notable
porosity,
which
are
highly
advantageous
sensing
applications.
A
myriad
characterization
techniques,
including
Raman
spectroscopy,
scanning
electron
microscopy
(SEM),
transmission
(TEM),
BET
area
analysis,
X-ray
diffraction
(XRD),
proven
effective
exploring
validating
adjustable
formation
these
nanomaterials
with
graphene.
The
applicability
across
matrices,
encompassing
environmental,
food,
biological
domains,
evaluated
measurements,
such
cyclic
voltammetry
(CV),
impedance
spectroscopy
(EIS),
differential
pulse
(DPV).
provides
comprehensive
overview
synthesis
methods,
sensor
applications
pertinent
nanocomposites.
Furthermore,
it
deliberates
on
challenges
future
prospects
within
this
burgeoning
field.
ACS Omega,
Journal Year:
2024,
Volume and Issue:
9(22), P. 23172 - 23183
Published: May 21, 2024
The
harmful
effects
of
antibiotic
proliferation
on
the
environment
and
its
persistent
nature
are
urgent
global
problems.
Ciprofloxacin
(CIP)
is
a
fluoroquinolone-class
agent
used
widely
to
treat
pathogen-related
diseases
in
humans
animals.
Its
excretion
into
surface
water
causes
resistance
microbes,
resulting
difficult-to-treat
or
untreatable
infectious
diseases.
This
study
developed
simple
efficient
electrochemical
sensor
detect
CIP.
Hydrothermal
chemistry
was
utilized
synthesize
an
electrophotocatalytic
composite
copper–iron
mixed
metal
oxides
(CIMMO)
reduced
graphene
oxide
(rGO)
(CIMMO/rGO).
employed
exhibited
outstanding
performance
detecting
operated
differential
pulse
voltammetry
(DPV)
mode
under
light
source
illumination.
yielded
linear
response
concentration
range
0.75
×
10–9–1.0
10–7
mol
L–1
CIP
showed
limit
detection
(LOD)
4.74
10–10
L–1.
excellent
sensing
attributable
synergic
between
CIMMO
nanoparticles
rGO,
which
facilitate
photoinduced
electron–hole
separation
assist
indirect
reactions/interactions
with
