Inorganic Chemistry,
Год журнала:
2023,
Номер
62(22), С. 8739 - 8745
Опубликована: Май 24, 2023
Artificial
synthetic
receptors
toward
functional
biomolecules
can
serve
as
models
to
provide
insights
into
understanding
the
high
binding
affinity
of
biological
for
revealing
their
law
life
activities.
The
exploration
serotonin
receptors,
which
guide
drug
design
or
count
diagnostic
reagents
patients
with
carcinoid
tumors,
is
great
value
clinical
medicine
but
highly
challenging
due
complex
analysis.
Herein,
we
report
a
cage-based
metal-organic
framework
(NKU-67-Eu)
an
artificial
chemical
receptor
well-matched
energy
levels
serotonin.
transfer
back
from
analyte
enables
NKU-67-Eu
recognize
excellent
neurotransmitter
selectivity
in
human
plasma
and
ultra-low
limit
detection
36
nM.
Point-of-care
visual
further
realized
by
colorimetry
change
smartphone
camera.
ACS Applied Nano Materials,
Год журнала:
2024,
Номер
7(22), С. 25805 - 25814
Опубликована: Окт. 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,
Год журнала:
2023,
Номер
62(51), С. 21322 - 21328
Опубликована: Дек. 10, 2023
Lanthanide-based
metal-organic
frameworks
show
good
potential
for
applications
due
to
their
unique
structures
and
functional
properties.
A
highly
thermally
acid-base
stable
Eu-MOF
was
synthesized
by
a
solvothermal
method
with
the
molecular
formula
{[(CH3)2NH2]2[Eu2(NDDP)2(H2O)2]·H2O}n
(Eu-MOF,
H4NDDP
=
5,5'-(naphthalene-2,6-diyl)diisophthalic
acid).
takes
three-dimensional
(4,4,8)-connected
topology.
The
water
molecules
involved
in
coordination,
free
molecules,
[(CH3)2NH2]+
cations
pore
can
be
used
as
proton
carriers.
conductivity
attains
1.25
×
10-4
S
cm-1
at
room
temperature
2.42
10-3
70
°C
98%
relative
humidity.
Combined
dual-emission
properties
from
ligands
Eu(III)
ions
enables
ratiometric
fluorescent
sensor
phosphate
efficiently
rapidly,
limit
of
detection
0.12
μM
Tris-HCl
buffer
solution.
These
results
provide
new
approach
construction
MOFs
high
fluorescence
response.
National Science Review,
Год журнала:
2024,
Номер
11(12)
Опубликована: Окт. 3, 2024
ABSTRACT
Due
to
almost
identical
boiling
points
of
benzene
and
cyclohexane,
the
extraction
trace
from
cyclohexane
is
currently
performed
via
energy-intensive
extractive
distillation
method.
Their
adsorptive
separation
by
porous
materials
hampered
their
similar
dimensions.
Metal-organic
frameworks
(MOFs)
with
versatile
pore
environments
are
capable
molecular
discrimination,
but
substrates
in
liquid-phase
remains
extremely
challenging.
Herein,
we
report
a
robust
MOF
(NKU-300)
triangular
channels
decorated
crown
ether
that
can
discriminate
exhibiting
an
unprecedented
selectivity
8615(10)
for
mixture
benzene/cyclohexane
(v/v
=
1/1000).
Remarkably,
NKU-300
demonstrates
exceptional
selectivities
over
wide
range
concentrations
0.1%–50%
ultrafast
sorption
kinetics
excellent
stability.
Single-crystal
X-ray
diffraction
computational
modelling
reveal
multiple
supramolecular
interactions
cooperatively
immobilise
molecules
channel,
enabling
superior
performance.
This
study
will
promote
application
advanced
sorbents
tailored
binding
sites
challenging
industrial
separations.
Inorganic Chemistry,
Год журнала:
2023,
Номер
62(22), С. 8739 - 8745
Опубликована: Май 24, 2023
Artificial
synthetic
receptors
toward
functional
biomolecules
can
serve
as
models
to
provide
insights
into
understanding
the
high
binding
affinity
of
biological
for
revealing
their
law
life
activities.
The
exploration
serotonin
receptors,
which
guide
drug
design
or
count
diagnostic
reagents
patients
with
carcinoid
tumors,
is
great
value
clinical
medicine
but
highly
challenging
due
complex
analysis.
Herein,
we
report
a
cage-based
metal-organic
framework
(NKU-67-Eu)
an
artificial
chemical
receptor
well-matched
energy
levels
serotonin.
transfer
back
from
analyte
enables
NKU-67-Eu
recognize
excellent
neurotransmitter
selectivity
in
human
plasma
and
ultra-low
limit
detection
36
nM.
Point-of-care
visual
further
realized
by
colorimetry
change
smartphone
camera.
