Biosensors,
Journal Year:
2024,
Volume and Issue:
14(12), P. 626 - 626
Published: Dec. 19, 2024
In
this
study,
3,4-diaminobenzoic
acid
(DABA)
was
introduced
into
the
porphyrin
metal–organic
framework
(PCN-224)
for
first
time
to
prepare
a
ratiometric
fluorescent
probe
(PCN-224-DABA)
quantitatively
detect
ferric
iron
(Fe(III))
and
selenium
(IV)
(Se(IV)).
The
fluorescence
attributed
DABA
of
PCN-224-DABA
at
345
nm
can
be
selectively
quenched
by
Fe(III)
Se(IV),
but
emission
peak
tetrakis
(4-carboxyphenyl)
(TCPP)
475
will
not
disturbed.
Therefore,
ratio
I345nm/I475nm
with
an
excitation
wavelength
270
designed
determine
Se(IV).
After
experimental
parameters
were
systematically
optimized,
developed
method
shows
good
selectivity
interference
resistance
Se(IV)
detection,
has
linearity
in
ranges
0.01–4
μM
0.01–15
limit
detection
0.045
0.804
μM,
respectively.
Furthermore,
quenching
pattern
investigated
through
Stern–Volmer
equation,
results
suggest
that
both
on
dynamic
quenching.
Finally,
constructed
applied
spiked
lake
water
samples,
which
applicability
real
sample
analysis.
Moreover,
contents
spinach
selenium-enriched
rice
determined,
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 11, 2025
Abstract
Flexible
sensing
electronics,
with
good
lightweight
and
flexibility,
can
maintain
excellent
capability
while
fitting
complex
curved
surfaces,
having
important
applications
in
wearable
devices,
medical
health
monitoring,
robotics.
The
rapid
advancement
of
metal‐organic
frameworks
(MOFs)
has
created
the
prospect
additional
improvements
flexible
sensors.
porous
structure
brings
them
a
high
specific
surface
area,
meaning
that
when
used
as
sensitive
materials
for
sensors,
sensitivity
selectivity
be
achieved.
Meanwhile,
performance
stability
MOF‐based
sensors
further
enhanced
by
modifying
MOFs’
or
compounding
other
materials,
which
is
crucial
manufacturing
utilized
working
conditions.
Herein,
MOFs
systematically
reviewed.
First,
common
series
MOFs,
preparation
modification
methods,
highly
conductive
are
introduced.
application
then
expounded,
including
self‐powered
mechanical
sensing,
gas
liquid
analyte
multi‐target/mode
sensing.
It
believed
better
response
capabilities
developed
processes
advance,
expected
to
more
widely
future
promote
development
technologies
such
human‐computer
interaction
technology.
