Analytical Chemistry Letters,
Journal Year:
2023,
Volume and Issue:
13(2), P. 213 - 225
Published: March 4, 2023
Herein,
we
proposed
a
cost-effective,
eco-friendly,
fast
and
sensitive
square
wave
cathodic
stripping
voltammetry
(SWCSV)
differential
pulse
(DPCSV)
methods
for
the
quantification
of
anti-ulcer
drug
cinitapride
in
pharmaceuticals.
Cinitapride
electrochemically
reduced
at
pencil
graphite
electrode
gave
an
irreversible
well-defined
peak
cyclic,
wave,
voltammograms.
The
effect
pH
buffer,
scan
rates,
concentration
on
current
potential
were
studied.
reduction
was
diffusion
controlled
occurred
via
participation
two
electrons
protons
(2e−/2H+).
various
electro-kinetic
parameters
such
as
coefficient(Do),
surface
coverage
(To)and
electron
transfer
coefficient
(α)
calculated,
additionally,
mechanism
also
proposed.
currents
vary
linearly
range
2.48
μmolL−1
to
17.39
all
voltammetric
techniques.
obtained
value
LOD
SWCSV
DPCSV
techniques
were2.48
3.19
μmolL−1,
respectively,
which
proved
higher
sensitivity
methods.
Sensors,
Journal Year:
2023,
Volume and Issue:
23(7), P. 3692 - 3692
Published: April 2, 2023
With
rapidly
increasing
environmental
pollution,
there
is
an
urgent
need
for
the
development
of
fast,
low-cost,
and
effective
sensing
devices
detection
various
organic
inorganic
substances.
Silver
nanoparticles
(AgNPs)
are
well
known
their
superior
optoelectronic
physicochemical
properties,
have,
therefore,
attracted
a
great
deal
interest
in
sensor
arena.
The
introduction
AgNPs
onto
surface
two-dimensional
(2D)
structures,
incorporation
into
conductive
polymers,
or
within
three-dimensional
(3D)
nanohybrid
architectures
common
strategy
to
fabricate
novel
platforms
with
improved
chemical
physical
properties
analyte
sensing.
In
first
section
this
review,
main
wet
reduction
approaches
successful
synthesis
functional
electrochemical
applications
discussed.
Then,
brief
on
principles
voltammetric
amperometric
sensors
given.
current
utilization
silver
silver-based
composite
nanomaterials
fabrication
as
pollutants
water
matrices
summarized.
Finally,
challenges
future
directions
nanosilver-based
outlined.
Advanced Materials Interfaces,
Journal Year:
2024,
Volume and Issue:
11(19)
Published: April 9, 2024
Abstract
Laser‐induced
graphene
(LIG)
is
a
promising
technology
enabling
cost‐effective,
scalable,
and
high
surface
area
3D‐porous
electrodes
for
electrochemical
applications.
Nitrate
in
water
bodies
harmful
contaminant
to
humans
the
ecosystems.
Its
detection
by
sensors
challenging
due
interference
from
nitrite.
Herein,
first
time,
LIG‐based
sensor
modified
with
electrodeposited
silver
dendrites
(EdAg/LIG)
without
using
surfactants
proposed
of
nitrate
tunable
selectivity
sensitivity.
The
electrode
extensively
characterized
spectroscopic
methods
underlying
mechanism
formation
substantiated.
developed
EdAg
dendrites/LIG
shows
excellent
sensing
properties
at
pH
2.
nitrite
acidic
media
eliminated
implementing
novel
strategy
shift
working
7.
achieved
both
values
surpass
other
limit
0.46
2
5.53
µ
m
also
good
recovery
characteristics
mineral,
tap,
groundwater
across
wide
range
concentrations
demonstrates
stability
under
temperature
fluctuations
deformations.
Desalination and Water Treatment,
Journal Year:
2024,
Volume and Issue:
319, P. 100456 - 100456
Published: June 6, 2024
Biosensors
(biological
sensors)
are
a
promising
alternative
to
standard
analytical
techniques
for
testing
and
monitoring
in
the
environment,
among
others,
heavy
metals.
Biological
materials
that
detect
metals
include
enzymes,
bacteria,
fungi,
plant
animal
cells.
The
paper
aimed
evaluate
possibilities
of
biosensor
usage
environmental
analysis,
considering
an
easy
environmentally
friendly
analysis
individual
compounds
(e.g.,
metals)
or
their
mixtures
various
samples
directly
as
well
continuous
these
compounds.
work
considers
biosensors'
characteristics,
classification,
operation
principles.
Attention
is
paid
possibility
using
bioluminescent
bacteria
biological
material
biosensor.
Examples
study
sensors
were
given.
It
also
indicates
biosensors
determine
microplastics
by
applying
specific
hormones
(estrogens)
receptor
use
peptides
solution
incorporating
them
into
living
microbial
Additionally,
support
was
given
monitor
plastics'
degradation
water
environment
recombinant
whole-cell
detectors
plastic
monomers
such
acrylic
acid
monomers.
application
highlighted
shorten
time
toxicity
studies
new
indicators
acceptors.
However,
several
challenges
must
be
overcome,
cell
viability
activity.
A
water-monitoring
system
can
handle
severely
toxic
sample
has
yet
developed
monitoring.
