A Molecularly Imprinted Electrochemical Sensor for Carbendazim Detection Based on Synergy Amplified Effect of Bioelectrocatalysis and Nanocomposites
Polymers,
Год журнала:
2025,
Номер
17(1), С. 92 - 92
Опубликована: Янв. 1, 2025
The
highly
selective
and
sensitive
determination
of
pesticide
residues
in
food
is
critical
for
human
health
protection.
Herein,
the
specific
selectivity
molecularly
imprinted
polymers
(MIPs)
was
proposed
to
construct
an
electrochemical
sensor
detection
carbendazim
(CBD),
one
famous
broad-spectrum
fungicides,
by
combining
with
synergistic
effect
bioelectrocatalysis
nanocomposites.
Gold
nanoparticle-reduced
graphene
oxide
(AuNP-rGO)
composites
were
electrodeposited
on
a
polished
glassy
carbon
electrode
(GCE).
Then
MIP
films
electropolymerized
surface
nanolayer
using
CBD
as
template
molecule
o-phenylenediamine
(OPD)
monomer.
sensitivity
heterogeneous
structure
greatly
amplified
AuNP-rGO
bioelectrochemical
oxidation
glucose,
which
catalyzed
glucose
oxidase
(GOD)
help
mediator
underlying
solution.
developed
showed
high
selectivity,
good
reproducibility,
excellent
stability
towards
linear
range
from
2.0
×
10−9
7.0
10−5
M,
limit
(LOD)
0.68
nM
(S/N
=
3).
expected
system
would
provide
new
idea
development
simple
sensors
(MIESs).
Язык: Английский
MOF Etching-Induced NiCo-Embedded Hollow N-Doped Carbon Nanocube for Enhanced Ratiometric Molecularly Imprinted Electrochemical Sensing of Carbendazim
Linbo Deng,
Shuya Xue,
Li Li
и другие.
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.
Язык: Английский
Biodegradation performance of azo dyes based on Fe-Mn@C dual-template molecularly imprinted sensor
Journal of Environmental Sciences,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 1, 2025
Язык: Английский
Construction of a ratiometric electrochemical sensor for bisphenol A detection by coupling nonionic surfactant-decorated conductive carbon black with ferricyanide probe
Talanta,
Год журнала:
2024,
Номер
283, С. 127084 - 127084
Опубликована: Окт. 21, 2024
Язык: Английский
Ratiometric Electrochemical Detection of Interleukin-6 Using Electropolymerized Methylene Blue and a Multi-Walled Carbon-Nanotube-Modified Screen-Printed Carbon Electrode
Biosensors,
Год журнала:
2024,
Номер
14(10), С. 457 - 457
Опубликована: Сен. 25, 2024
Herein,
we
report
a
ratio-based
electrochemical
biosensor
for
the
detection
of
interleukin-6
(IL-6).
We
electropolymerized
methylene
blue
(MB)
on
surface
screen-printed
carbon
electrodes;
introduced
an
internal
reference
signal
probe;
modified
carboxylate
multi-walled
nanotubes
electrode
to
increase
electrochemically
active
area;
and
finally
linked
amino-modified
IL-6
aptamer
through
Schiff
base
reaction,
with
bovine
serum
albumin
(BSA)
added
mask
non-specific
adsorption.
After
adding
samples,
I
Язык: Английский
Layered double hydroxide nanozyme (LDHzyme)-assisted high-performance electrochemical analysis of organ transplant therapeutic drug concentration
Microchemical Journal,
Год журнала:
2024,
Номер
207, С. 111969 - 111969
Опубликована: Окт. 22, 2024
Язык: Английский
Sensitive detection of gallic acid in food by electrochemical sensor fabricated by integrating nanochannel film with nanocarbon nanocomposite
Frontiers in Nutrition,
Год журнала:
2024,
Номер
11
Опубликована: Ноя. 12, 2024
Sensitive
detection
of
gallic
acid
(GA)
in
foods
is
great
significance
for
assessing
the
antioxidant
properties
products
and
ensuring
consumer
health.
In
this
work,
a
simple
electrochemical
sensor
was
conveniently
fabricated
by
integrating
vertically-ordered
mesoporous
silica
film
(VMSF)
with
electrochemically
reduced
graphene
oxide
(ErGO)
nitrogen
quantum
dots
(NGQDs)
nanocomposite,
enabling
sensitive
GA
food
sample.
A
water-soluble
mixture
(GO)
NGQDs
drop-cast
onto
common
carbon
electrode,
glassy
electrode
(GCE),
followed
rapid
growth
VMSF
using
an
assisted
self-assembly
method
(EASA).
The
negative
voltage
applied
during
facilitated
situ
reduction
GO
to
ErGO.
synergistic
effects
ErGO,
NGQDs,
nanochannels
led
nearly
tenfold
enhancement
signal
compared
that
obtained
on
electrodes
modified
either
ErGO
or
alone.
realized
linear
concentration
range
from
0.1
10
μM,
100
μM.
limit
(LOD),
determined
based
signal-to-noise
ratio
three
(
S
/
N
=
3),
found
be
81
nM.
Combined
size-exclusion
property
VMSF,
demonstrated
high
selectivity,
making
it
suitable
samples.
Язык: Английский