Riboflavin
was
first
isolated
from
milk
and
widely
used
in
food,
biological
pharmaceutical
fields.
Accurate
detection
of
riboflavin
content
is
great
significance
for
the
treatment
related
diseases
supervision
food/drug
quality.
In
this
paper,
a
1D
chain
copper-based
coordination
polymer
with
excellent
water
stability
synthesized
by
hydrothermal
method
using
rigid
ligand
1,10-phenanthroline
flexible
1,4-phenylenedioxydiacetic
acid,
named
Cu-phen-PEDA.
Based
on
Förster
resonance
energy
transfer
(FRET)
mechanism,
emission
spectrum
Cu-phen-PEDA
overlaps
absorption
riboflavin.
As
an
donor
case,
significantly
increases
fluorescence
intensity
(energy
acceptor),
while
simultaneously
decreasing
its
own
intensity,
which
effective
proportional-building
strategy.
lower
concentration
range,
can
be
specifically
recognized
ratiometric
good
linear
relationship,
limit
as
low
0.23
μM.
The
potential
aspects
specificity,
stability,
reusability
practical
application
were
explored.
Applied Organometallic Chemistry,
Journal Year:
2024,
Volume and Issue:
38(6)
Published: March 26, 2024
The
trace
detection
of
biomarkers
in
real
samples
has
profound
a
most
important
significance
the
early
diagnosis
and
daily
monitoring
diseases.
Based
on
ligand
pre‐design
strategy,
novel
3D
CuMOF,
with
formula
{[Cu
4
(BTPB)(
μ
2
‐OH)
(H
O)
5
]·3H
O}
n
,
was
fabricated
by
using
hexacarboxyl
1,4‐bis(2,4,6‐tricarboxylpyrid‐5‐yl)benzene
6
BTPB)
tetranuclear
{Cu
(COO)
(
}
SBUs.
Benefiting
from
robust
framework
unique
luminescence
performance,
prepared
CuMOF
displays
great
potential
as
dual‐responsive
efficient
luminescent
sensor
“turn‐off”
3‐nitrotyrosine
(3‐NT)
biomarker
“turn‐on”
detecting
anthrax
dipicolinic
acid
(DPA),
limits
(LOD)
for
3‐NT
DPA
being
110.8
ng/ml
85.2
ng/ml,
respectively.
Additionally,
practicality
compatibility
such
developed
sensors
were
verified
quantifying
diluted
serum
urine
satisfactory
recoveries.
Further,
theoretical
calculations
energy
levels
well
spectral
overlap
between
analytes
conducted
to
elucidate
possible
sensing
mechanisms.
This
work
demonstrated
that
MOFs‐based
are
evolving
an
efficacious
equable
approach
samples.
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
Inorganic Chemistry,
Journal Year:
2024,
Volume and Issue:
63(29), P. 13516 - 13524
Published: July 3, 2024
Anthrax
bacillus
is
a
very
dangerous
zoonotic
pathogen
that
seriously
endangers
public
health.
Rapid
and
accurate
qualitative
quantitative
detection
of
its
biomarkers,
2,6-dipicolinic
acid
(DPA),
crucial
for
the
prevention
treatment
this
pathogenic
bacterium.
In
work,
novel
Cd-based
MOF
(TTCA-Cd)
has
been
synthesized
from
polycarboxylate
ligand,
[1,1':2',1″-terphenyl]-4,4',4″,5'-tetracarboxylic
(H
