ACS Applied Nano Materials,
Journal Year:
2023,
Volume and Issue:
6(9), P. 8046 - 8058
Published: April 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.
Chemical Reviews,
Journal Year:
2023,
Volume and Issue:
123(18), P. 11047 - 11136
Published: Sept. 7, 2023
Advances
in
nanotechnology
and
nanomaterials
have
attracted
considerable
interest
play
key
roles
scientific
innovations
diverse
fields.
In
particular,
increased
attention
has
been
focused
on
carbon-based
exhibiting
extended
structures
unique
properties.
Among
these
materials,
zero-dimensional
structures,
including
fullerenes,
carbon
nano-onions,
nanodiamonds,
dots,
possess
excellent
bioaffinities
superior
fluorescence
properties
that
make
suitable
for
application
to
environmental
biological
sensing,
imaging,
therapeutics.
This
review
provides
a
systematic
overview
of
the
classification
structural
properties,
design
principles
preparation
methods,
optical
sensing
applications
nanomaterials.
Recent
interesting
breakthroughs
sensitive
selective
imaging
heavy
metal
pollutants,
hazardous
substances,
bioactive
molecules
as
well
information
encryption,
super-resolution
photoacoustic
phototherapy
nanomedicine
delivery
are
main
focus
this
review.
Finally,
future
challenges
prospects
materials
highlighted
envisaged.
presents
comprehensive
basis
directions
designing,
developing,
applying
fascinating
fluorescent
sensors
fabricated
based
specific
requirements
numerous
research
Chemical Science,
Journal Year:
2023,
Volume and Issue:
14(14), P. 3705 - 3729
Published: Jan. 1, 2023
Carbon
dot-based
room
temperature
phosphorescence
materials
are
reported,
mainly
focusing
on
the
outstanding
contributions
over
years,
emission,
lifetime,
preparation
and
application.
Advanced Functional Materials,
Journal Year:
2023,
Volume and Issue:
33(41)
Published: June 13, 2023
Abstract
Carbon
dots
(CDs)—carbon
nanoparticles
smaller
than
10
nm—have
attracted
widespread
attention
owing
to
their
excellent
optical
properties.
However,
high‐performing
CDs
often
suffer
from
severe
aggregation‐induced
quenching
in
the
solid
state,
which
limits
commercial
applicability.
Therefore,
CD
materials
with
efficient
solid‐state
luminescence
are
sought.
As
research
on
structure
and
photoluminescence
mechanisms
of
has
intensified
recent
years,
strategies
construct
fluorescent
tune
emissions
have
broadened.
This
article
reviews
advances
for
attaining
fluorescence
CDs,
describes
specific
ways
properties
this
fluorescence,
introduces
latest
applications
resulting
optoelectronics,
biology,
sensing,
finally
considers
prospects
future
application
current
challenges
facing
development
CDs.
Small,
Journal Year:
2023,
Volume and Issue:
19(17)
Published: Jan. 29, 2023
Hydrogels
have
extremely
high
moisture
content,
which
makes
it
very
soft
and
excellently
biocompatible.
They
become
an
important
material
a
wide
range
of
applications
in
various
fields
such
as
biomedicine,
bionic
smart
material,
electrochemistry.
Carbon
dot
(CD)-based
hydrogels
are
based
on
carbon
dots
(CDs)
auxiliary
substances,
forming
gel
with
comprehensive
properties
individual
components.
CDs
embedding
could
not
only
solve
their
aggregation-caused
quenching
(ACQ)
effect,
but
also
manipulate
the
even
bring
some
novel
properties,
achieving
win-win
situation.
In
this
review,
preparation
methods,
formation
mechanism,
CD-based
hydrogels,
sensing,
adsorption,
energy
storage,
catalysis
-are
summarized.
Finally,
brief
discussion
future
research
directions
will
be
given.
The Journal of Physical Chemistry Letters,
Journal Year:
2023,
Volume and Issue:
14(26), P. 5975 - 5984
Published: June 22, 2023
Fluorescence
regulation
of
carbon
dots
(CDs)
during
their
preparation
has
become
a
hot
research
topic.
In
this
work,
multicolor
fluorescent
CDs
with
unconventional
luminescence
behavior
are
prepared
by
using
o-,
m-,
or
p-phenylenediamine
(o-PD,
m-PD,
p-PD,
respectively)
and
2,3-dihydroxynaphthalene
rich
hydroxyl
groups
as
reaction
precursors.
Tunable
bright
blue,
yellow,
red
colors
can
be
obtained
solvothermal
method
under
the
joint
action
ethanol
hydrochloric
acid.
The
fluorescence
emission
synthesized
follows
rule
o-PD
to
m-PD
p-PD
from
blue
red,
which
is
contrary
most
previously
reported
results
(the
following
an
order
p-PD).
Our
reveal
that
differences
in
polymerization,
surface
states,
functional
groups,
graphite
N
content
might
main
reasons
for
behavior.
addition,
these
have
good
applications
fields
light-emitting
diode
lighting
anticounterfeiting.
