Electronics,
Год журнала:
2024,
Номер
13(23), С. 4799 - 4799
Опубликована: Дек. 5, 2024
In
this
study,
we
present
the
design
of
a
molecularly
imprinted
polymer
(MIP)
for
detection
antibiotic
sparfloxacin
(SPFK),
combined
with
high-precision
quartz
crystal
microbalance
(QCM)
sensor.
Green-synthesized
ZIF-67@PDA-MIP
was
directly
immobilized
on
gold
electrode
surface
QCM.
This
configuration
takes
advantage
selective
recognition
capabilities
MIP
and
high-sensitivity
response
characteristics
QCM
It
overcomes
limitations
traditional
SPFK
methods,
offering
both
accurate
rapid
responses
practical
applications.
The
MIP-QCM
sensor
demonstrated
enhanced
sensitivity
affinity,
achieving
limit
as
low
10.3
ng/mL.
Additionally,
selectivity
superior
to
that
other
non-template
molecules.
effectively
detected
residues
in
milk
acceptable
accuracy,
indicated
by
recoveries
ranging
from
96.16%
104.64%
relative
standard
deviation
(RSD)
less
than
4.64%.
These
results
suggest
proposed
provides
an
accurate,
sensitive,
rapid,
cost-effective
method
detecting
animal
products,
advancement
is
expected
promote
widespread
adoption
sensors
food
safety
testing.
Journal of the American Chemical Society,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 25, 2024
Halide
oxidation
plays
a
fundamental
role
in
halide
segregation
and
the
degradation
of
perovskites,
yet
quantitative
measurement
solid-state
perovskite
samples
remains
challenging.
Herein,
we
demonstrate
that
situ
opto-gravimetric
measurements
based
on
quartz
crystal
microbalance
can
quantify
photolysis
kinetics
perovskites.
By
investigating
series
mixed
bromide/iodide
perovskites
with
varying
ratios,
identical
compositional
thresholds
(
Biomacromolecules,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 21, 2025
Various
polycations
and
polyanions
were
sequentially
adsorbed
onto
the
gold
electrode
of
a
quartz
crystal
microbalance
with
dissipation
monitoring.
The
study
focused
on
determining
adsorption
kinetics,
viscoelastic
properties,
electroresponsivity
polyelectrolyte
layers.
For
first
time,
it
was
demonstrated
that
structure
(compact
or
expanded)
layers
can
be
determined
by
electroresponsivity.
Viscoelastic
modeling
alone
did
not
provide
conclusive
answer
as
to
whether
compact
expanded.
further
enriched
streaming
potential
contact
angle
measurements,
where
multilayers
formed
mica.
It
found
successive
led
periodic
inversion
zeta
potential.
Systematic
differences
observed
between
different
top
layers,
which
explained
intermixing
presence
absence
interpenetration,
measurements
angles,
correlated
well
New Journal of Chemistry,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
The
high
sensitivity
and
excellent
selectivity
of
QCM
sensors
based
on
ZnSn(OH)
6
cubes
have
opened
up
new
avenues
for
long-term
seafood
freshness
assessment.
Polymers,
Год журнала:
2025,
Номер
17(7), С. 946 - 946
Опубликована: Март 31, 2025
This
study
presents
an
efficient
method
for
detecting
oxytetracycline,
which
is
critical
in
environmental
monitoring
and
food
safety.
A
highly
sensitive
detection
platform
was
developed
by
combining
molecularly
imprinted
polymers
(MIPs)
with
silica
as
a
carrier,
modified
deep
eutectic
solvents
(DES),
quartz
crystal
microbalance
(QCM)
sensor.
The
MIPs
were
specifically
designed
to
target
oxytetracycline
hydrochloride,
using
SiO2
the
DES
functional
monomer,
N,
N-methylenebisacrylamide
crosslinker,
ammonium
persulfate
initiator.
exhibited
adsorption
capacity
of
27.23
mg/g
hydrochloride.
After
modification
onto
gold
electrode
surface,
QCM-based
sensor
constructed.
demonstrated
exceptionally
low
limit
0.019
ng/mL
excellent
sensitivity
tap
water.
Furthermore,
maintained
over
90%
performance
after
two
weeks
room-temperature
storage,
indicating
its
stability.
provides
rapid,
approach
detection,
potential
future
improvements
widespread
application
antibiotic
testing.
