In
recent
years,
owing
to
the
widespread
use
of
pesticides
in
agricultural
products,
an
increasing
concerns
have
been
arose
on
food
safety.
Therefore,
it
is
great
importance
develop
simple,
rapid,
and
effective
analytical
methods
for
sensitive
detection
pesticide
residues
samples.
this
work,
we
developed
electrochemical-surface
enhanced
Raman
spectroscopy
(EC-SERS)
sensor
rapid
acetamiprid
(AAP).
AuNPs/ITO
SERS
substrates
were
prepared
via
in-situ
electrodepositing
dense
gold
nanoparticles
(AuNPs)
indium
tin
oxide
(ITO)
electrode,
which
showed
good
homogeneity
with
a
relative
standard
deviation
(RSD)
8.9%.
With
addition
AAP
into
electrolytic
cell,
intensity
was
linearly
related
concentration
under
applied
potential
(+0.3
V).
Under
optimal
experimental
conditions,
method
exhibited
linear
range
0.05
50
μM,
limit
(LOD,
3S/M)
0.02
μM.
Finally,
confirmed
by
HPLC-MS
real
samples,
revealing
its
application
Food Chemistry X,
Год журнала:
2024,
Номер
23, С. 101681 - 101681
Опубликована: Июль 23, 2024
Ratiometric
electrochemical
sensors
are
renowned
for
their
dual-signal
processing
capabilities,
enabling
automatic
correction
of
background
noise
and
interferences
through
built-in
calibration,
thus
providing
more
accurate
reproducible
measurements.
This
characteristic
makes
them
highly
promising
food
analysis.
review
comprehensively
summarizes
discusses
the
latest
advancements
in
ratiometric
applications
analysis,
emphasizing
design
strategies,
detection
practical
uses.
Initially,
we
explore
construction
strategies
these
sensors.
We
then
various
food-related
analytes,
including
nutrients,
additives,
metal
ions,
pharmaceutical
pesticide
residues,
biotoxins,
pathogens.
The
also
briefly
explores
challenges
faced
by
testing
potential
future
directions
development.
It
aims
to
provide
researchers
with
a
clear
introduction
serve
as
reference
application
new,
efficient
Sensors,
Год журнала:
2024,
Номер
24(3), С. 930 - 930
Опубликована: Янв. 31, 2024
Sunset
Yellow
FCF
(SY
FCF)
is
one
of
the
widely
used
synthetic
azo
dyes
in
food
industry
whose
content
has
to
be
controlled
for
safety
reasons.
Electrochemical
sensors
are
a
promising
tool
this
type
task.
A
voltammetric
sensor
based
on
combination
tin
and
cerium
dioxide
nanoparticles
(SnO
Frontiers in Analytical Science,
Год журнала:
2023,
Номер
3
Опубликована: Сен. 25, 2023
Ratiometric
strategy
are
an
invaluable
method
that
helps
to
detect
and
quantify
analytes.
This
approach
relies
on
measuring
changes
in
the
ratio
of
two
or
more
signals
improve
accuracy
sensitivity
results.
strategies
widely
used
a
variety
fields
including
biomedical,
environmental
monitoring
food
safety.
It
is
particularly
popular
when
traditional
single-signal
based
detection
methods
not
feasible,
especially
interfering
substances
severely
affect
detection.
In
addition,
ratiometric
have
potential
reliability
analyte
detection,
leading
better
results
complex
environments.
The
article
provides
comprehensive
review
strategy,
focusing
fluorescent
nanoprobes
for
visual
paper
also
discusses
design
two-photon
probes
biomedical
imaging,
synthesis
surface-enhanced
Raman
scattering
imaging
intracellular
analytes,
development
molecularly
imprinted
electrochemical
sensors
electroactive
species,
use
isotopically-labeled
internal
standards
matrix-assisted
laser
desorption/ionization
analysis.
only
each
technique
detail,
its
principles,
advantages,
applications,
limitations,
but
highlights
recent
advances
possible
future
directions.
Inorganic Chemistry,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 29, 2025
Metal-organic
framework
(MOF)-derived
carbon
materials
are
commonly
used
as
sensing
materials,
but
their
limited
accessibility
to
active
sites
and
specific
surface
area
restrict
applications.
In
this
study,
we
proposed
a
simple
method
involving
facile
tannic
acid
etching
calcination
create
NiCo-embedded
hollow
N-doped
nanocubes
(NiCo@HNC)
using
MOFs
sacrificial
templates.
The
resulting
NiCo@HNC
material
has
large
area,
improved
mass
transport
channels,
enhanced
exposure
of
electroactive
due
its
unique
structure
high
porosity,
leading
electrocatalytic
activity.
Moreover,
with
the
utilization
substrate
dopamine
functional
monomer,
ratiometric
molecularly
imprinted
electrochemical
sensor
was
developed
for
selective
sensitive
detection
carbendazim
(CBZ).
This
demonstrated
wide
linear
range
0.0003-10
μM
low
limit
0.1
nM.
addition,
utilized
accurate
quantification
CBZ
in
actual
carrot/strawberry
samples
recovery
96.0-103.0%,
indicating
potential
practical
application.
