Journal of Agricultural and Food Chemistry,
Journal Year:
2023,
Volume and Issue:
71(35), P. 13114 - 13123
Published: Aug. 28, 2023
Excessive
residues
of
fluoroquinolones
(FQs)
in
aquatic
products
have
become
a
growing
issue
recent
years.
Herein,
we
demonstrate
an
upconversion
fluorescence
nanosensor
constructed
by
one-stone-two-birds
strategy,
where
Fe3+
not
only
quenches
with
high
efficiency
but
also
specifically
recognizes
the
bidentate
ligand
structure
FQs.
Compared
to
existing
methods,
proposed
sensor
is
simpler
synthesize
and
cheap
has
more
storage
stability
due
unification
quencher
recognition
molecule.
Enrofloxacin
(ENR)
was
chosen
as
representative
veterinary
drug
for
FQs
verify
effectiveness
nanosensor.
Under
optimal
conditions,
range
detection
ENR
2.0
×
10-2
102
μg/mL,
limit
1.08
10-3
μg/mL.
The
developed
further
validated
high-performance
liquid
chromatography-ultraviolet
(HPLC-UV)
without
significant
differences
practical
detection.
Hence,
this
study
offers
potential
strategy
Chemical Science,
Journal Year:
2024,
Volume and Issue:
15(8), P. 2848 - 2856
Published: Jan. 1, 2024
Crystal
engineering
of
metal
halide
hybrids
is
critical
to
investigate
their
structure-property
relationship
and
advance
photophysical
applications,
but
there
have
been
limited
efforts
employ
coordination
chemistry
precisely
control
the
dimensionality
sublattices.
Herein,
we
present
a
coordination-assembly
synthetic
strategy
developed
for
rational
modulation
lead
dimensionality,
realizing
transition
from
2D
3D
architectures.
This
manipulation
achieved
by
utilizing
three
organocarboxylates
featuring
identical
cyclohexane
backbone
unit.
Specifically,
1,4-cyclohexanedicarboxylate
1,2,4,5-cyclohexanetetracarboxylate
ligands
facilitate
formation
quasi-2D
layered
structures,
characterized
weakly
corrugated
strongly
layers,
respectively.
Importantly,
introduction
1,2,3,4,5,6-cyclohexanehexacarboxylate
ligand
results
in
architectures
chloride/bromide
The
templated
affords
extended
wavelength
coverage
superior
carrier
transport
properties
compared
analogues.
both
halide-based
polymers
exhibit
high
aqueous
stability
over
wide
pH
range,
outperforming
conventional
ionic-bound
halides.
Notably,
chemically
stable
bromide
exhibits
efficient
photocatalytic
ethylbenzene
oxidation
with
conversion
rate
498
μmol
g
Chemistry of Materials,
Journal Year:
2023,
Volume and Issue:
35(2), P. 773 - 782
Published: Jan. 11, 2023
Single-component
white
light
emitters
are
particularly
attractive
for
fabricating
economical
solid-state
devices
display
and
lighting.
Herein,
an
efficient
with
photoluminescence
quantum
yields
approaching
98%
has
been
obtained
in
Mn2+
Pb2+
co-doped
Cs7Cd3Br13
crystals.
The
quantified
bonding
nonbonding
characters
calculated
by
the
crystal
orbital
Hamilton
population
analysis
demonstrate
that
occupy
preferentially
[CdBr4]2–
tetrahedrons
rather
than
[CdBr6]4–
octahedrons
Cs7Cd3Br13.
According
to
PL
spectral
characteristic
theoretical
results,
broadband
emission
from
Cs7Cd3Br13:Pb2+,Mn2+
crystals
is
ascribed
multiple
origins,
i.e.,
first
self-trapped
exciton
(STE1)
intrinsic
trapping
states
of
host
lattice
Cs7Cd3Br13,
d–d
transition
Mn2+,
second
(STE2)
induced
introduction
Pb2+,
respectively.
results
density
functional
theory
reveal
incorporation
significantly
improved
thermodynamic
stability
structure
lower
defect
formation
energies,
which
verified
experimental
observation
temperature-dependent
spectra
emitting
findings
here
provide
a
new
perspective
single-component
via
creating
centers
single
matrix
as
well
help
elucidation
preferential
site
occupancy
mechanism
dopants
different
symmetrical
units.
Journal of Agricultural and Food Chemistry,
Journal Year:
2023,
Volume and Issue:
71(35), P. 13114 - 13123
Published: Aug. 28, 2023
Excessive
residues
of
fluoroquinolones
(FQs)
in
aquatic
products
have
become
a
growing
issue
recent
years.
Herein,
we
demonstrate
an
upconversion
fluorescence
nanosensor
constructed
by
one-stone-two-birds
strategy,
where
Fe3+
not
only
quenches
with
high
efficiency
but
also
specifically
recognizes
the
bidentate
ligand
structure
FQs.
Compared
to
existing
methods,
proposed
sensor
is
simpler
synthesize
and
cheap
has
more
storage
stability
due
unification
quencher
recognition
molecule.
Enrofloxacin
(ENR)
was
chosen
as
representative
veterinary
drug
for
FQs
verify
effectiveness
nanosensor.
Under
optimal
conditions,
range
detection
ENR
2.0
×
10-2
102
μg/mL,
limit
1.08
10-3
μg/mL.
The
developed
further
validated
high-performance
liquid
chromatography-ultraviolet
(HPLC-UV)
without
significant
differences
practical
detection.
Hence,
this
study
offers
potential
strategy
