Preparation and application of copper nanoclusters as a fluorescent sensor for sensitive detection of tartrazine
Microchemical Journal,
Год журнала:
2024,
Номер
207, С. 112146 - 112146
Опубликована: Ноя. 9, 2024
Язык: Английский
Nature-driven blue-emissive N, S-CDs: Harnessing sequential "switch-off-on" fluorescence signals for detection of chrysin and Al³⁺ along with cellular imaging versatility
Talanta Open,
Год журнала:
2025,
Номер
11, С. 100466 - 100466
Опубликована: Май 3, 2025
Язык: Английский
Polyvinylpyrrolidone‐Stabilized Blue‐Emitting Copper Nanoclusters as Fluorescence Probe for Selective Detection of Dopamine
ChemistrySelect,
Год журнала:
2024,
Номер
9(26)
Опубликована: Июль 9, 2024
Abstract
Dopamine
(DA),
a
critical
catecholamine
in
mammals,
functions
as
significant
biological
indicator
for
specific
diseases.
The
precise
and
timely
identification
of
DA
is
essential
disease
monitoring
prevention.
In
this
study,
copper
nanoclusters
(Cu
NCs)
were
synthesized
using
polyvinyl
pyrrolidone
(PVP)
the
protective
ligand
L‐ascorbic
acid
(L‐AA)
reducing
agent
via
simple
hydrothermal
process.
produced
PVP−Cu
NCs
displayed
strong
blue
emission
at
427
nm
when
excited
365
nm.
alkaline
conditions,
was
able
to
selectively
inhibit
fluorescence
NCs.
investigation
mechanism
revealed
that
dopamine
self‐polymerization
resulted
formation
polydopamine,
which
inhibited
due
inner
filter
effect
(IFE).
Based
on
above
phenomenon,
selective
analytical
method
determination
developed.
intensity
demonstrated
reliable
response
concentrations
within
range
5
200
μM,
with
detection
limit
(LOD)
1.32
μM.
proposed
successfully
utilized
human
urine
samples,
indicating
its
potential
application
biomedical
detection.
Язык: Английский
A Ratiometric Fluorescence Probe Based on Silver Nanoclusters and CdSe/ZnS Quantum dots for the Detection of Hydrogen Peroxide by Aggregation and Etching
Journal of Fluorescence,
Год журнала:
2024,
Номер
unknown
Опубликована: Июнь 22, 2024
Язык: Английский
Sensitive Detections of Sodium Dichloroisocyanurate and Rosmarinic Acid by Polyvinylpyrrolidone Coated Copper Nanoclusters
Jianhua Kuang,
Qingqing Hu,
Yao Feng
и другие.
Journal of Fluorescence,
Год журнала:
2023,
Номер
34(6), С. 2679 - 2690
Опубликована: Окт. 26, 2023
Язык: Английский
A ratiometric fluorescence probe based on silver nanoclusters and CdSe/ZnS quantum dots for the detection of hydrogen peroxide by aggregation and etching
Research Square (Research Square),
Год журнала:
2024,
Номер
unknown
Опубликована: Апрель 17, 2024
Abstract
In
this
study,
a
ratiometric
fluorescence
nanoprobe
is
developed
for
the
analysis
of
hydrogen
peroxide
(H
2
O
).
Silver
nanoclusters
(AgNCs)
were
synthesized
by
chemical
reduction
method
using
sodium
borohydride
(NaBH
4
)
as
reducing
agent,
and
coupled
with
CdSe/ZnS
quantum
dots
(QDs)
to
form
silver
nanoclusters-quantum
(AgNCs-QDs).
The
effect
volume
ratio
QDs
AgNCs
on
AgNCs-QDs
was
investigated.
characterization
results
show
that
two
emission
peaks
are
located
at
473
nm
661
nm,
respectively.
Transmission
electron
microscope
(TEM)
X-ray
photoelectron
spectroscopy
(XPS)
H
can
cause
probe
aggregate,
while
etching
produce
ions,
which
together
in
fluorescent
be
quenched.
Based
strategy,
intensity
F
/F
exhibits
strong
linear
correlation
concentration
.
detection
range
3.32
μM
~
2.65
mM
limit
μM.
addition,
specifically
recognize
has
excellent
anti-interference
performance
good
stability.
Importantly,
utilized
serum,
showing
possibility
clinical
applications.
Язык: Английский
Synthesis of blue-emitting polyvinylpyrrolidone coated copper nanoclusters for sensitive detection of sodium dichloroisocyanurate and rosmarinic acid
Jianhua Kuang,
Qingqing Hu,
Yao Feng
и другие.
Research Square (Research Square),
Год журнала:
2023,
Номер
unknown
Опубликована: Авг. 31, 2023
Abstract
In
this
article,
the
water-soluble
blue-light-emitting
copper
nanoclusters
(CuNCs)
were
prepared
by
polyvinylpyrrolidone
(PVP)
and
ascorbic
acid
as
templating
reducing
agents
severally.
Optimization
of
synthesis
conditions
PVP-CuNCs
studied
analyzed.
It
had
good
specificity
exceptional
sensitivity
detection
for
sodium
dichloroisocyanurate
(DCCNa)/rosmarinic
(RA),
with
a
linear
response
range
0.03–2.4/0.03–0.9
µM
corresponding
LOD
value
10.77/8.98
nM.
Moreover,
fluorescent
reaction
mechanisms
PVP-CuNCs-DCCNa
PVP-CuNCs-DCCNa-RA
systems
discussed,
sensing
probe
could
be
effectively
used
determination
DCCNa
RA
in
genuine
samples,
whose
results
acceptable.
Язык: Английский