Development of a Carbon Paste Electrode Modified with Saffron-Conjugated Silver Nanoparticles for the Simultaneous Determination of Cd, Pb, Zn, Cu and Cl in Soils and Plants
Chemosensors,
Год журнала:
2025,
Номер
13(3), С. 91 - 91
Опубликована: Март 5, 2025
A
simple
and
easily
applicable
analytical
method
for
the
simultaneous
determination
of
Cd2+,
Pb2+,
Zn2+,
Cu2+,
Cl−
by
applying
a
modified
carbon
paste
electrode
with
saffron-conjugated
silver
nanoparticles
(AgNPs@Sa)
is
being
presented.
The
CPE
was
then
used
Cu2+
as
well
chloride
ions
in
soil
plants.
comparative
analysis
demonstrated
significant
enhancement
applicability
through
incorporation
(AgNPs)
at
(CPE)
surface,
leading
to
development
poly-Sa-CPE.
This
newly
proposed
offers
notably
superior
qualitative
performance
compared
other
metal
nanoparticle-based
modifications
reported
literature.
accordingly
successfully
applied
ion.
novel
sensor
that
makes
possible
heavy
metals
chlorides
same
solution,
plant
samples.
enhanced
sensitivity
selectivity
poly-Sa-CPE
system
highlights
its
potential
more
effective
alternative
analysis,
further
demonstrating
advantages
electrochemical
applications.
LODs
their
are
0.38
μg·L−1,
0.44
0.72
0.42
0.11
respectively,
comparably
high
relative
standard
deviations
about
8.1%,
9.4%,
8.3%,
7.6%,
7.9%,
respectively.
Язык: Английский
Theoretical Insights into the Impact of the Central Atom on the Photoluminescence Mechanisms of Ligand-Protected Cu Nanoclusters
The Journal of Physical Chemistry Letters,
Год журнала:
2025,
Номер
unknown, С. 3705 - 3714
Опубликована: Апрель 4, 2025
Ligand-protected
copper
nanoclusters
(CuNCs)
have
attracted
considerable
attention
in
both
fundamental
research
and
practical
applications
due
to
their
easy
availability,
environmental
friendliness,
exceptional
optical
properties.
In
this
study,
density
functional
theory
(DFT)
time-dependent
(TD-DFT)
calculations
were
employed
investigate
the
photoluminescence
(PL)
mechanism
of
two-electron
(2e)
cluster
[Au@Cu14(SCH2CH3)12(P(CH2CH3)3)6]+
(Au@Cu14)
zero-electron
(0e)
[Cl@Cu14(SCH2CH3)12(P(CH2CH3)3)6]+
(Cl@Cu14)
explore
impact
central
atom
on
PL
mechanisms
CuNCs.
The
accuracy
various
exchange-correlation
(XC)
functionals
used
for
fluorescence
phosphorescence
energy
was
evaluated.
BP86
PBE0
calculate
radiative
nonradiative
transition
processes
two
clusters.
Theoretical
showed
that
enhanced
spin-orbit
coupling,
larger
dipole
moments,
more
significant
orbital
overlap,
smaller
Huang-Rhys
factors
reorganization
energies
main
reasons
higher
quantum
yield
(PLQY)
Au@Cu14
than
Cl@Cu14.
These
findings
provide
important
insights
into
effect
CuNCs
valuable
guidance
design
optimization
applications.
Язык: Английский
A review of metal nanomaterials-based electrochemical biosensors for environmental wastewater monitoring and their remediation
Environmental Nanotechnology Monitoring & Management,
Год журнала:
2024,
Номер
unknown, С. 101023 - 101023
Опубликована: Ноя. 1, 2024
Язык: Английский
Red-emitting copper nanoclusters for ultrasensitive and selective detection of creatinine and its application in portable smartphone-based paper strips and polymer thin film
Surfaces and Interfaces,
Год журнала:
2024,
Номер
53, С. 105014 - 105014
Опубликована: Авг. 26, 2024
Язык: Английский
Glycerate-assisted CoMn-sulfide with microsphere architecture confined by nanoparticles as an efficient enzyme-free sensor for amperometric measurement of glucose in serum, saliva and beverage samples
Food Chemistry,
Год журнала:
2024,
Номер
467, С. 142175 - 142175
Опубликована: Ноя. 20, 2024
Язык: Английский
Fluorescent “On‐off‐on” Probe for Cascade Detection of Ag(I) and Ascorbic Acid Using Folic Acid Protected Copper Nanoclusters
ChemNanoMat,
Год журнала:
2024,
Номер
unknown
Опубликована: Окт. 18, 2024
Abstract
Folic
acid
(FA)
protected
copper
nanoclusters
(FA‐CuNCs,
λ
ex
=350
nm,
em
=445
nm)
were
synthesized
and
used
as
a
fluorescent
“on‐off‐on”
probe
for
the
cascade
detection
of
Ag
+
ascorbic
(AA).
The
fluorescence
emission
FA‐CuNCs
at
445
nm
was
quenched
significantly
by
due
to
analyte‐induced
aggregation
followed
formation
larger
nanoparticles.
However,
when
AA
added
in‐situ
generated
Ag@FA‐CuNCs,
recovered
because
AA‐directed
reduction
0
.
experimental
conditions,
such
pH,
incubation
time,
quencher
concentrations,
optimized
achieve
improved
sensitivity.
limit
estimated
37.1
nM
0.27
μM
with
linearity
range
2.49–22
4.71–81.53
μM,
respectively.
In
real
sample
analysis,
recoveries
ions
in
river
water
orange
juice
samples
found
between
99–93
%
97–94
using
probes
Overall,
this
work
offers
viable
method
sequential
via
switch
mechanism.
Язык: Английский