Chemical Communications,
Journal Year:
2023,
Volume and Issue:
59(18), P. 2636 - 2639
Published: Jan. 1, 2023
Here,
we
demonstrate
a
new
electrochemical
sensing
mechanism
of
ammonium
ions
(NH4+)
involving
two-electron
oxygen
reduction
reaction
(ORR)
and
hydrazine
reaction.
The
NH4+
are
electrooxidized
to
by
H2O2
derived
from
the
ORR
over
self-supporting
Ag/TiO2
nanotube
array
composite
electrode
modified
hematite
(Ag/Fe2O3/TNTs).
Ag/Fe2O3/TNT
sensor
exhibits
high
sensitivity
1876
µA
mM-1
cm-2
with
detection
limit
0.18
µM
under
non-alkaline
conditions,
short
response
time
3
s,
good
reproducibility,
fine
selectivity
among
various
interferents,
is
also
successfully
used
in
real
water
bodies
display
accuracy.
Furthermore,
this
has
certain
universality
range
Ag
(main
catalyst)/transition
metal
oxide
(cocatalyst)/TNT
systems.
This
work
offers
design
basis
for
urgently
needed
ammonia
nitrogen
sensors.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(32)
Published: April 3, 2024
Abstract
Thin‐film
fluorescent
sensors
play
critical
roles
in
the
gas
sensing
field.
However,
materials
for
practical
applications
are
limited,
because
of
aggregation‐caused
quenching
(ACQ)
effect
and
photobleaching.
This
study
investigates
a
host–guest
thin‐film
fluorescence
sensor
by
incorporating
probe
into
metal–organic
framework
(MOF).
The
molecule
Me
4
BOPHY‐1
acts
as
recognition
neurotoxin
analog
diethylchlorophosphite
(DCP).
MOF
(ZIF‐8)
provides
nanocavities
confinement
guest
molecules,
which
reduces
self‐aggregation
molecules
pre‐enriches
target
gas.
By
applying
ZIF‐8
to
disperse
ACQ
can
be
effectively
overcome.
quantum
efficiency
is
increased
from
0.76%
19.72%,
enables
its
ability
with
fast
response
time
3
s
detection
limit
low
1.13
ppb.
Besides,
facilitates
selectivity
enhancement
through
effect,
weakening
interference
HCl.
Moreover,
also
ensures
high
photo‐stability
well
thermal
stability.
It
maintain
intensity
under
4800
s’
laser
irradiation.
Thus,
design
strategy
offers
3S
(sensitivity,
selectivity,
stability)
toward
analytes.
Applied Organometallic Chemistry,
Journal Year:
2025,
Volume and Issue:
39(3)
Published: Feb. 21, 2025
ABSTRACT
One‐dimensional
coordination
polymer
La‐CP
,
{[La(H
2
O)
(HL
O
)
(L
)]·H
O}
n
containing
a
new
luminescent
ligand
4,7‐di(4‐carboxypyrazol‐1‐yl)‐2,1,3‐benzoxadiazole
(H
L
was
synthesized.
Upon
excitation
at
400
nm,
the
compound
shows
strong
emission
with
maximum
550
nm
high
photoluminescence
quantum
yield
of
43%.
demonstrates
sensing
properties
toward
aluminum
and
gallium
cations,
as
well
dihydrogen
phosphate
sulfate
anions
through
enhancement
response.
The
limits
detection
were
0.42,
0.70,
0.37,
0.40
μM,
respectively.
is
first
example
sensor
for
anion
among
all
types
polymers.
uptake
analytes
under
conditions
evaluated,
absorption
result
such
proposed
probable
response
mechanism.
Sensors,
Journal Year:
2024,
Volume and Issue:
24(2), P. 511 - 511
Published: Jan. 14, 2024
In
the
constantly
evolving
field
of
medical
diagnostics,
triboelectric
nanogenerators
(TENGs)
stand
out
as
a
groundbreaking
innovation
for
simultaneously
harnessing
mechanical
energy
from
micromovements
and
sensing
stimuli
both
human
body
ambient
environment.
This
advancement
diminishes
dependence
biosensors
on
external
power
sources
paves
way
application
TENGs
in
self-powered
devices,
especially
realm
point-of-care
diagnostics.
this
review,
we
delve
into
functionality
First,
basic
principle
how
effectively
transform
subtle
physical
movements
electrical
energy,
thereby
promoting
development
devices
that
are
particularly
advantageous
real-time
biological
monitoring.
Then,
adaptable
design
facilitate
customization
to
meet
individual
patient
needs
is
introduced,
with
focus
their
biocompatibility
safety
applications.
Our
in-depth
analysis
also
covers
TENG-based
biosensor
designs
moving
toward
exceptional
sensitivity
specificity
biomarker
detection,
accurate
efficient
diagnoses.
Challenges
future
prospects
such
integration
wearable
implantable
discussed.
We
aim
review
illuminate
burgeoning
intelligent
continuous,
health
monitoring;
inspire
further
captivating
area
research
line
patient-centered
healthcare.
Chemosensors,
Journal Year:
2023,
Volume and Issue:
11(5), P. 304 - 304
Published: May 19, 2023
Piezoelectric
and
triboelectric
nanogenerators
(P-TENGs)
have
emerged
as
promising
technologies
for
converting
mechanical
energy
into
electrical
energy,
with
potential
applications
in
self-powered
wearable
environmental
monitoring
devices.
Modular
design
P-TENGs,
characterized
by
the
flexible
assembly
customization
of
device
components,
enables
development
sustainable
versatile
chemical
sensors.
In
this
review,
we
focus
on
role
modularity
P-TENG-based
sensing,
discussing
how
it
enhances
flexibility,
sensing
versatility,
scalability,
integration
other
technologies.
We
explore
various
strategies
functionalizing
P-TENGs
specific
recognition
elements,
facilitating
selective
sensitive
detection
target
chemicals
such
gases,
biochemicals,
or
biomolecules.
Furthermore,
examine
modular
storage
devices,
signal
conditioning
circuits,
wireless
communication
modules,
highlighting
creating
advanced,
systems.
Finally,
address
challenges
future
directions
sensors
(PCS
TCS),
emphasizing
importance
improving
selectivity,
stability,
reproducibility
practical
applications.
