Food Chemistry X,
Год журнала:
2024,
Номер
23, С. 101681 - 101681
Опубликована: Июль 23, 2024
Ratiometric
electrochemical
sensors
are
renowned
for
their
dual-signal
processing
capabilities,
enabling
automatic
correction
of
background
noise
and
interferences
through
built-in
calibration,
thus
providing
more
accurate
reproducible
measurements.
This
characteristic
makes
them
highly
promising
food
analysis.
review
comprehensively
summarizes
discusses
the
latest
advancements
in
ratiometric
applications
analysis,
emphasizing
design
strategies,
detection
practical
uses.
Initially,
we
explore
construction
strategies
these
sensors.
We
then
various
food-related
analytes,
including
nutrients,
additives,
metal
ions,
pharmaceutical
pesticide
residues,
biotoxins,
pathogens.
The
also
briefly
explores
challenges
faced
by
testing
potential
future
directions
development.
It
aims
to
provide
researchers
with
a
clear
introduction
serve
as
reference
application
new,
efficient
Crystal Growth & Design,
Год журнала:
2023,
Номер
23(11), С. 7716 - 7724
Опубликована: Окт. 4, 2023
Rapid
detection
of
the
3-nitrotyrosine
(3-NT)
biomarker
in
serum
is
great
significance
clinical
diagnosis
and
daily
disease
monitoring.
In
this
work,
two
chemorobust
3D
metal–organic
frameworks
(MOFs)
[Co(DBrTPA)(NMP)]n
(CoMOF-1)
[Co5(DBrTPA)4(DMF)6(HCOO)2]n
(CoMOF-2)
were
fabricated
from
a
halogen-modified
ligand
2,5-dibromoterephthalic
(H2DBrTPA)
cobalt(II)
clusters
under
solvothermal
conditions.
The
introduction
halogens
can
improve
stability
overall
framework
different
media
pH
environments,
which
also
endow
CoMOFs
with
potential
as
luminescent
sensors
high
sensitivity
selectivity,
fast
response,
good
anti-interference,
well
recyclable
performance
detecting
3-NT
PBS
buffer
solution
through
quenching
effects,
Ksv
values
being
9.19
×
104
M–1
for
CoMOF-1
1.05
105
CoMOF-2
LODs
low
23.6
ng·mL–1
20.1
CoMOF-2.
Furthermore,
developed
employed
to
quantify
real
samples,
satisfactory
results.
addition,
possible
sensing
mechanisms
toward
discussed
photoinduced
electron
transfer
spectral
overlaps.
This
work
demonstrated
excellent
MOF-based
provided
an
outlook
design
help
artificial
intelligence
machine
learning.
Metal-organic
frameworks
(MOFs)
are
composed
of
metal
nodes
and
organic
linkers
that
can
self-assemble
into
an
infinite
network.
The
high
porosity
large
surface
area
MOFs
facilitate
the
effective
enrichment
mass
transfer
analytes,
which
enhance
signal
response
improve
sensitivity
electrochemical
sensors.
Additionally,
their
derivatives
possess
properties
unsaturated
sites
tunable
structures,
collectively
demonstrating
potential
for
sensing.
This
paper
summarizes
preparation
methods,
structural
properties,
applications
in
sensing,
emphasizing
sensors'
selectivity
from
perspectives
direct
indirect
detection.
it
also
explores
future
directions
prospects
with
aim
overcoming
current
limitations
through
innovative
approaches.
