The
compelling
affordability
and
formidable
sterilizing
efficacy
of
Chloramphenicol
(CAP)
persist
in
fostering
its
illicit
deployment
within
the
domains
aquaculture
animal
husbandry,
despite
stringent
prohibitions.
In
pursuit
elevating
analytical
prowess
Terahertz
(THz)
sensors
while
markedly
mitigating
detrimental
consequences
stemming
from
CAP
residues
by
means
a
cost-effective
uncomplicated
approach,
an
innovative
THz
immunosensing
platform,
uniting
nanoscale
Au
film
metamaterial
(AuF
MM)
with
immunocompetitive
technique,
has
been
conceived
brought
to
fruition
scope
this
investigation.
silicon-based
AuF
MM
serves
as
solid-phase
substrate
for
covalent
attachment
minute
molecules
CAP-BSA
via
electrostatic
adsorption
hydrophobic
action.
These
subsequently
engage
competitive
binding
process
colloidal
gold
(AuNPs)
labeled-CAP
monoclonal
antibodies
(mAb),
along
standards.
alteration
spectral
transmittance,
induced
interaction
waves
complexes
formed
on
surface
MM,
is
harnessed
quantification
concentrations.
This
immunobiosensing
technology
possesses
capability
discern
presence
milk
unparalleled
sensitivity,
owing
substantial
plasmon
resonance
invoked
dual
particles.
results,
detection
threshold
low
5
pg/mL,
eloquently
demonstrate
successful
formulation
direct,
efficient,
exquisitely
sensitive,
highly
specific
methodology.
approach
also
ushers
novel
immunoassay
paradigm
diminutive
protein
molecule
or
vast
macromolecular
viruses.
ACS Omega,
Год журнала:
2024,
Номер
9(5), С. 5157 - 5174
Опубликована: Янв. 25, 2024
Electrospun
nanofibrous
hybrid
materials
have
several
advantageous
characteristics,
including
easy
preparation,
high
porosity,
and
a
large
specific
surface
area.
Meanwhile,
they
can
be
more
suitable
for
colorimetric
detection
in
environmental
food
areas
than
organic
due
to
the
advantages
of
inorganic
nanomaterials,
i.e.,
stability,
low
toxicity,
durability.
In
addition
being
able
immobilize
nanomaterials
avoid
particle
aggregation,
electrospinning
also
area
which
is
beneficial
constructing
sensors.
This
review
mainly
summarizes
fabrication
methods
electrospun
application
material
based
First,
preparation
strategies
were
discussed.
Then,
applications
obtained
sensors
molecules
gas
liquid
phase
further
investigated.
Finally,
this
looks
forward
development
prospects
challenges
practical
order
support
detection.
International Journal of Electrochemical Science,
Год журнала:
2023,
Номер
18(12), С. 100393 - 100393
Опубликована: Окт. 28, 2023
In
this
work,
a
molecularly
imprinted
polymer
(MIP)-based
photoelectrochemical
(PEC)
sensor
for
the
detection
of
ciprofloxacin
(CIP)
was
constructed.
Carbon-modified
ZnO
(ZnO/C)
nanocomposite
with
adjustable
zinc
content
prepared
by
carbonaceous
method,
facilitating
visible
light
absorption
and
electron
transition.
The
structure,
morphology,
surface
chemistry
ZnO/C
were
well
characterized.
MIP
membrane
formed
electropolymerizing,
nanocomposite,
o-phenylenediamine
(C6H4(NH3)2,o-PD),
CIP
as
highly
efficient
photoactive
materials,
functional
monomer,
template,
respectively.
PEC
properties
different
electrodes
measured
analyzed.
MIP-based
showed
excellent
sensitivity
selectivity
towards
CIP,
displaying
broad
linear
range
from
0.01
nM
to
1000
nM,
low
limit
8.41
pM,
satisfied
recovery
rates
within
96.8%103.2%.
exhibited
reliable
reproducibility
stability,
relative
standard
deviation
(RSD)
2.48%
in
milk.
constructed
not
only
provides
powerful
route
but
also
can
be
extended
detect
other
antibiotics
food
natural
environment.
International Journal of Electrochemical Science,
Год журнала:
2024,
Номер
19(7), С. 100592 - 100592
Опубликована: Апрель 17, 2024
A
highly
sensitive
and
selective
molecularly
imprinted
polymer
(MIP)
sensing
platform
was
developed
for
the
detection
of
nicotine
in
tobacco
samples.
The
MIP
sensor
fabricated
by
integrating
a
PtNPs/GO
nanocomposite
with
an
electropolymerized
nicotine-imprinted
film
on
glassy
carbon
electrode.
Under
optimal
conditions
(pH
7.4,
50
mM
pyrrole,
30
min
elution
time),
exhibited
wide
linear
range
(0.01-0.5
μM
0.5-100
μM),
low
limit
(0.015
good
reproducibility
(RSD
<
4.2%),
long-term
stability
(93.2%
retention
after
days).
demonstrated
excellent
selectivity
towards
nicotine,
coefficients
ranging
from
7.2
to
9.5
against
interfering
substances.
practical
applicability
validated
analyzing
content
cigarettes
chewing
samples,
recoveries
97.5%
102.8%
relative
errors
within
±5%
compared
reference
GC-MS
method.
proposed
MIP-based
electrochemical
offers
rapid,
simple,
cost-effective
approach
complex
matrices,
showing
great
potential
applications
industry
public
health
sector.
International Journal of Electrochemical Science,
Год журнала:
2024,
Номер
19(9), С. 100710 - 100710
Опубликована: Июль 1, 2024
A
highly
sensitive
and
selective
molecular
imprinting
sensor
based
on
laser-induced
graphene
(LIG)
gold
nanoparticles
(AuNPs)
was
fabricated
for
the
sensing
of
tigecycline
in
food
samples.
The
LIG
electrodes
were
using
a
CO2
laser,
optimal
parameters
8.6
W
power
10
cm/s
scanning
speed
yielded
low
sheet
resistance
18.2
±
0.8
Ω/sq.
MIP-AuNP-LIG
prepared
by
electropolymerization
o-phenylenediamine
presence
template.
exhibited
wide
linear
range
(0.01–800
nM)
detection
limit
(0.003
buffer
solution.
In
milk
meat
samples,
showed
good
sensitivity
with
LODs
0.15
nM
0.21
nM,
respectively.
demonstrated
excellent
selectivity,
reproducibility
(RSD
=
3.6
%),
stability
(90
%
response
after
1
month),
reusability
(6
cycles,
RSD
4.2
%).
offers
promising
tool
monitoring
residues
complex
matrices,
advantages
over
other
methods
terms
facile
fabrication,
robustness,
practicality.
