Journal of Agricultural and Food Chemistry,
Journal Year:
2024,
Volume and Issue:
73(2), P. 1598 - 1607
Published: Dec. 31, 2024
In
this
study,
we
present
an
intelligent
electromagnetic-actuated
microfluidic
chip
integrated
with
a
G-quadruplex
DNAzyme-based
biocatalysis
platform
for
rapid
and
sensitive
tetracycline
(TC)
detection.
sensing
system,
TC
significantly
quenches
fluorescent
magnetic
carbon
dots
(M-CDs)
via
the
internal
filtration
effect
dynamic
quenching
(the
excitation
emission
wavelength
at
350
440
nm,
respectively).
Then,
on
M-CDs-Aptamer
is
exposed
bound
hemin
to
form
hemin-G-quadruplex
DNAzyme,
catalyzing
conversion
of
3,3',5,5'-tetramethylbenzidine
produce
blue
color.
This
enables
fluorescence/colorimetric
detection
TC.
Importantly,
automatic
electromagnet-integrated
was
designed
control
shuttling
materials
in
each
function
slot
according
programmed
sequence.
Under
optimal
conditions,
limits
fluorescence
colorimetric
methods
were
11
43
μmol/L,
respectively.
The
results
tilapia
(Oreochromis
nilotica)
comparable
those
traditional
high-performance
liquid
chromatography.
offers
excellent
performance
determination
potential
portable,
trace
pollutants
food
environment.
New Journal of Chemistry,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Jan. 1, 2024
This
review
emphasizes
the
promising
potential
of
UiO
MOFs
as
efficient
adsorbents
for
removing
antibiotics
from
water,
offering
a
viable
solution
environmental
cleanup.
The
detection
and
quantification
of
veterinary
drug
residues
in
meat
remain
a
significant
challenge
due
to
the
complex
background
interference
inherent
matrix,
which
compromises
stability
accuracy
spectroscopic
analysis.
This
study
introduces
an
advanced
label-free
surface-enhanced
Raman
spectroscopy
(SERS)
platform
for
precise
identification
drugs.
By
employing
dual
enhancement
strategy
involving
sodium
borohydride
activation
calcium
ion-deuterium
oxide
guidance,
this
achieves
efficient
capture
signal
amplification
molecules
on
highly
active
nanoparticles.
High-quality
SERS
spectra
were
obtained
carprofen,
doxycycline
hydrochloride,
chloramphenicol,
penicillin
G
salt,
enabling
accurate
classification
suppression.
In
addition,
application
machine
learning
algorithms,
including
PCA-LDA,
heatmap,
decision
tree
modeling,
allows
differentiation
mixed
samples.
Quantitative
analyses
samples
achieved
through
intensity
ratios
multivariate
curve
resolution-alternate
least-squares
(MCR-ALS)
analysis,
with
results
showing
high
consistency
high-performance
liquid
chromatography
(HPLC)
measurements.
These
findings
highlight
potential
SERS-based
rapid
multicomponent
food
matrices.
