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.
Small,
Journal Year:
2024,
Volume and Issue:
20(29)
Published: Feb. 11, 2024
Abstract
In
recent
years,
carbon
dots
(CDs)
have
garnered
increasing
attention
due
to
their
simple
preparation
methods,
versatile
performances,
and
wide‐ranging
applications.
CDs
can
manifest
various
optical,
physical,
chemical
properties
including
quantum
yield
(QY),
emission
wavelength
(Em),
solid‐state
fluorescence
(SSF),
room‐temperature
phosphorescence
(RTP),
material‐specific
responsivity,
pH
sensitivity,
anti‐oxidation
oxidation,
biocompatibility.
These
be
effectively
regulated
through
precise
control
of
the
CD
process,
rendering
them
suitable
for
diverse
However,
lack
consideration
given
each
feature
during
process
poses
a
challenge
in
obtaining
requisite
features
This
paper
is
analyze
existing
research
present
novel
concepts
ideas
creating
with
different
distinct
The
synthesis
methods
are
discussed
first
section,
followed
by
comprehensive
overview
important
modification
strategy.
Subsequently,
application
reviewed.
Finally,
outlines
current
challenges
controlling
applications,
discusses
potential
solutions,
offers
suggestions
future
research.
Molecules,
Journal Year:
2025,
Volume and Issue:
30(2), P. 422 - 422
Published: Jan. 20, 2025
The
use
of
biomass
feedstocks
for
producing
high-value-added
chemicals
is
gaining
significant
attention
in
the
academic
community.
In
this
study,
near-infrared
carbon
dots
(NIR-CDs)
with
antimicrobial
and
bioimaging
functions
were
prepared
from
Epigynum
auritum
branches
leaves
using
a
novel
green
synthesis
approach.
spectral
properties
synthesized
NIR-CDs
characterized
by
ultraviolet–visible
(UV-Vis)
absorption
fluorescence
spectroscopy.
crystal
structures
further
high-resolution
transmission
electron
microscopy
(HR-TEM),
X-ray
photoelectron
spectroscopy
(XPS),
Fourier
transform
infrared
(FT-IR),
nuclear
magnetic
resonance
(NMR),
diffraction
(XRD).
exhibited
minimal
toxicity,
excellent
biocompatibility,
high
penetrability
both
vivo
vitro
environments,
making
them
ideal
luminescent
probes
applications.
Moreover,
activity
was
tested
against
Staphylococcus
aureus
(S.
aureus)
Escherichia
coli
(E.
coli),
showing
bacterial
growth
inhibition.
effect
likely
attributed
to
disrupting
cell
membrane
integrity,
leading
leakage
intracellular
contents.
Therefore,
hold
promise
as
fluorescent
agents.
