Inorganic Chemistry,
Год журнала:
2024,
Номер
63(42), С. 19652 - 19664
Опубликована: Окт. 7, 2024
Quantitative
detection
of
tetracycline
(TC)
and
nitrofurantoin
(NFT)
in
food
water
is
importance
for
safety
environmental
protection.
Herein,
Zn2+
was
introduced
into
a
europium
metal–organic
framework
Eu-bpdc
(H2bpdc
=
2,2′-bipyridyl-5,5′-dicarboxylic
acid)
to
prepare
composite
Zn2+@Eu-bpdc,
which
developed
as
fluorescence
sensor
TC
NFT.
The
mechanism
concerns
with
bpdc2–
ligand-to-Eu(III)
charge
transfer,
the
inner
filter
effect.
Zn2+@Eu-bpdc
ratiometric
linear
fitting
equation
I520/I618
1.94
×
104
M–1CTC,
whose
limit
(LOD)
0.148
μmol·L–1
(μM);
it
also
"turn-off"
NFT
(I0–I)/I
3.62
M–1CNFT
LOD
0.0792
μM.
can
detect
or
lake
water,
honey,
milk
high
accuracy.
emission
color
changes
paper-based
depending
on
CTC
CNFT
reveal
visualization
detections
With
red
green
values
input
signals,
smartphone-assisted
on-site
utilized
recognize
antibiotic
residuals
by
self-programmed
APP.
promising
intelligent
platform
Applied Organometallic Chemistry,
Год журнала:
2025,
Номер
39(2)
Опубликована: Янв. 9, 2025
ABSTRACT
The
leakage
of
quinolone
antibiotics
may
bring
serious
hazards
to
plants,
animals,
and
human;
thus,
the
detection
is
great
urgent
yet
remains
challenging
issue.
Herein,
two
isostructural
metal–organic
frameworks
{[(CH
3
)
2
NH
]
[M
(
μ
‐O)(BPDC)
(TPP)]·
x
MeCN·
y
DMF}
n
(M
=
Co,
8,
1,
NS‐13
;
M
Ni,
7,
NS‐14
H
BPDC
4,4′‐biphenyldicarboxylic
acid;
TPP
2,4,6‐tris(4‐pyridyl)pyridine),
have
been
successfully
prepared
through
solvothermal
method.
were
three‐dimensional
networks
built
form
‐O)]
4+
clusters.
Impressively,
both
displayed
good
fluorescence
response
norfloxacin,
ofloxacin,
enrofloxacin
with
low
limit
(LOD)
excellent
recyclability,
our
best
knowledge,
which
are
superior
most
reported
frameworks.
Furthermore,
density
functional
theory
(DFT)
calculations
lifetime
experiments
uncovered
possible
probe
mechanism
toward
above‐mentioned
antibiotics.
This
work
extends
application
cluster‐based
in
Abstract
In
this
study,
we
constructed
a
“turn‐off”
fluorescence
probe
for
the
specific
detection
of
antiviral
agents
by
preparing
stable
reserve
solutions
1,1,2,2‐tetraphenylethylene
(TPE),
which
notably
exhibits
character
aggregation‐induced
emission
(AIE).
The
fluorescent
molecules
were
systematically
characterized.
maximum
excitation
and
peaks
located
at
281
440
nm,
respectively.
We
discussed
response
between
TPE
agents,
as
well
effects
certain
single‐variable
factors.
%
suppressed
efficiency
(%E)
was
calculated
Stern–Volmer
equation
analyzed.
results
indicated
that
Cidofovir
(CDV)
can
more
effectively
quench
based
on
mechanism
internal
filtration
effect
(IFE)
static
quenching.
studied
linear
correlation
intensity
concentration
CDV.
limit
(LOD)
found
to
be
0.2279
mg·L
−1
.
recovery
rates
CDV
in
blank
samples
ranged
from
93.22%–97.90%.
Additionally,
different
letters
“L”
written
using
prepared
under
ambient
light
UV
light,
respectively,
demonstrating
contents
both
readable
easily
erasable.
recognition
lays
groundwork
detecting
residues,
holds
promising
prospects
practical
detection.
