CrystEngComm,
Journal Year:
2024,
Volume and Issue:
27(3), P. 415 - 420
Published: Dec. 2, 2024
A
Tb
III
metal–organic
framework
(
JXUST-52
)
based
on
a
benzothiadiazole
derivative
can
selectively
and
sensitively
detect
H
2
PO
4
−
with
good
recyclability
stability.
ACS Applied Nano Materials,
Journal Year:
2024,
Volume and Issue:
7(22), P. 25805 - 25814
Published: Oct. 31, 2024
Developing
a
sensitive,
rapid,
and
accurate
method
for
the
quantitative
visual
detection
of
anthrax
biomarker
dipicolinic
acid
(DPA)
is
great
significance
to
human
health
public
safety.
Due
presence
"antenna
effect",
sensitization
Eu3+
ions
Tb3+
can
be
facilely
achieved
by
organic
ligands
with
different
degrees
exhibits
excellent
luminescence
behavior
ions,
enabling
dual-centered
lanthanide
metal–organic
framework
(Ln-MOF)
promising
ratiometric
fluorescence
sensor
trace
DPA
determination.
Herein,
we
present
series
nanoporous
frameworks,
denoted
as
{EuxTb1–x(BPDC)(μ3-OH)(H2O)·H2O·DMF}n
(EuxTb1–x-BPDC)
assembled
2,2′-bipyridine-4,4′-dicarboxylic
(H2BPDC),
sensors
DPA.
Among
these,
Eu0.5Tb0.5-BPDC
stands
out
optimal
material,
exhibiting
superior
performance
quantitative,
visual,
detection.
Moreover,
demonstrates
stability
in
aqueous
solution
capability
remarkable
sensitivity
(limit
(LOD)
=
0.608
μM),
selectivity
(Ksv
6.46
×
106
M–1),
anti-interference,
impressive
reusability.
contribution
blocked
energy
transfer
between
mixed-lanthanide
competitive
absorption
DPA,
color
change
observation
from
red
greenish-yellow
under
illumination
ultraviolet
light.
Most
importantly,
colorimetric
test
strips
portable
hydrogels,
facilitating
practical
application
ACS Applied Nano Materials,
Journal Year:
2024,
Volume and Issue:
7(22), P. 25369 - 25379
Published: Nov. 4, 2024
With
the
accelerated
progression
of
modern
society,
artificial
colorants
are
utilized
extensively
for
their
attractive
coloration.
Herbicides
applied
widely
to
control
unwanted
plants
in
agricultural
fields
which
cause
toxic
effects
on
human
health
and
environment.
The
increased
utilization
these
chemicals
has
necessitated
development
a
highly
sensitive
sensor
that
can
selectively
identify
chemicals.
In
this
study,
we
explored
nanoscale
Zr(IV)-based
metal–organic
framework
(MOF)
(1′)
as
fluorescence
toward
precise
recognition
food
colorant
tartrazine
herbicide
metamitron.
quenching
efficiency
1′
metamitron
was
93
88%,
respectively.
limit
detection
found
be
5.7
nM
13.7
metamitron,
remarkably
lower
than
other
reported
sensors.
Moreover,
quick
response
time
(<10
s
<20
metamitron)
recyclable
property
made
it
promising
candidate
real-world
application.
Furthermore,
various
matrices,
displayed
very
good
recovery
percentage.
This
study
also
highlights
potential
real-time
different
environmental
water
systems
variety
pH
media.
Additionally,
have
prepared
cost-effective,
user-friendly
Zr(IV)
MOF-embedded
chitosan
paper
composite
hands-on
tartrazine.
We
elaborately
investigated
mechanisms
fluorometric
sensing
with
several
instrumental
techniques.
Adsorption
capacity
measured
showed
fast
adsorption
(<1
min).
It
over
90%
selectivity
presence
commonly
occurring
cations
anions.