ACS Applied Nano Materials,
Год журнала:
2023,
Номер
6(9), С. 8046 - 8058
Опубликована: Апрель 27, 2023
Multicolor
emissive
nitrogen-doped
carbon
quantum
dots
(CQDs)
were
synthesized
by
the
hydrothermal
method
and
characterized
using
spectroscopic
electron
microscopic
techniques.
Förster
resonance
energy
transfer
(FRET)
between
CQDs
gold
nanorods
(AuNRs)
has
been
investigated
that
occurs
due
to
distinctive
overlap
of
transverse
longitudinal
bands
AuNRs
with
fluorescence
(FL)
spectra
CQDs.
Significant
FL
quenching
(turn-off)
their
recovery
(turn-on)
have
observed
etching
end-to-end
assemblies
lead
detection
biomolecules
like
H2O2,
glucose,
glutathione
(GSH),
acetylcholinesterase
(AChE).
The
redox
reaction
Au(0)
H2O2
results
in
decomposition
give
Au(I)
ions,
thereby
inducing
(turn-on).
interruption
FRET
phenomenon
production
from
glucose
oxidase
presence
a
thiol-containing
compound
acetylthiocholine
AChE
enzyme
causes
CQDs,
respectively.
Moreover,
assembly
leads
disruption,
turn-on
signals
found
be
measures
GSH.
In
comparison
UV–visible
approach,
measurements
through
process
are
more
sensitive
under
same
conditions.
practical
applicability
proposed
sensing
system
verified
human
plasma
samples.
Nano Letters,
Год журнала:
2024,
Номер
24(6), С. 1859 - 1866
Опубликована: Янв. 30, 2024
Afterglow
materials
with
time-dependent
color
output
emerge
as
huge
prospects
in
advanced
optical
information
encryption
but
remain
a
formidable
challenge
due
to
the
limited
exciton
transfer
from
single
emission
center.
Here,
multiple
afterglow
evolutions
are
achieved
by
strategy
of
controllable
assembly
dual
carbon
dots
(CDs)
an
individual
and
decay
rate
into
RHO
zeolite.
The
possesses
high
controllability
such
that
B-CDs
G-CDs
can
be
independently
generated
situ
embedded
matrix;
particular,
doped
amount
two
kinds
CDs
adjusted
conveniently
produce
interesting
variable
colors.
Triggered
different
excitations,
prepared
B&G-CDs@RHO
composites
exhibit
conversion
TADF
RTP
behaviors,
well
deep-blue
green
(365
nm
excitation)
static
cyan
(254
excitation).
unique
luminescence
excellent
stability
allow
composite
applied
high-security
levels.
ACS Applied Nano Materials,
Год журнала:
2023,
Номер
6(9), С. 8046 - 8058
Опубликована: Апрель 27, 2023
Multicolor
emissive
nitrogen-doped
carbon
quantum
dots
(CQDs)
were
synthesized
by
the
hydrothermal
method
and
characterized
using
spectroscopic
electron
microscopic
techniques.
Förster
resonance
energy
transfer
(FRET)
between
CQDs
gold
nanorods
(AuNRs)
has
been
investigated
that
occurs
due
to
distinctive
overlap
of
transverse
longitudinal
bands
AuNRs
with
fluorescence
(FL)
spectra
CQDs.
Significant
FL
quenching
(turn-off)
their
recovery
(turn-on)
have
observed
etching
end-to-end
assemblies
lead
detection
biomolecules
like
H2O2,
glucose,
glutathione
(GSH),
acetylcholinesterase
(AChE).
The
redox
reaction
Au(0)
H2O2
results
in
decomposition
give
Au(I)
ions,
thereby
inducing
(turn-on).
interruption
FRET
phenomenon
production
from
glucose
oxidase
presence
a
thiol-containing
compound
acetylthiocholine
AChE
enzyme
causes
CQDs,
respectively.
Moreover,
assembly
leads
disruption,
turn-on
signals
found
be
measures
GSH.
In
comparison
UV–visible
approach,
measurements
through
process
are
more
sensitive
under
same
conditions.
practical
applicability
proposed
sensing
system
verified
human
plasma
samples.
