Small,
Journal Year:
2023,
Volume and Issue:
19(31)
Published: Feb. 21, 2023
Abstract
Carbon
dots
(CDs)
have
gradually
become
a
new
generation
of
nano‐luminescent
materials,
which
received
extensive
attention
due
to
excellent
optical
properties,
wide
source
raw
low
toxicity,
and
good
biocompatibility.
In
recent
years,
there
are
many
reports
on
the
luminescent
phenomenon
CDs,
great
progress
has
been
achieved.
However,there
rarely
systematic
summaries
CDs
with
persistent
luminescence.
Here,
summary
including
luminous
mechanism,
synthetic
strategies,
property
regulation,
potential
applications,
is
given.
First,
brief
introduction
given
development
materials.
Then,
mechanism
afterglow
from
room
temperature
phosphorescence
(RTP),
delayed
fluorescence
(DF),
long
luminescence
(LPL)
discussed.
Next,
constructed
methods
materials
summarized
two
aspects,
matrix‐free
self‐protected
matrix‐protected
CDs.
Moreover,
regulation
properties
color,
lifetime,
efficiency
presented.
Afterwards,
applications
such
as
anti‐counterfeiting,
information
encryption,
sensing,
bio‐imaging,
multicolor
display,
LED
devices,
etc.,
reviewed.
Finally,
an
outlook
proposed.
JACS Au,
Journal Year:
2021,
Volume and Issue:
1(11), P. 1805 - 1814
Published: Sept. 30, 2021
Conventional
π-conjugated
luminophores
suffer
from
problems
such
as
emission
quenching,
biotoxicity,
environmental
pollution,
etc.
The
emerging
nonconjugated
and
nonaromatic
clusteroluminogens
(CLgens)
are
expected
to
overcome
these
stubborn
drawbacks,
so
research
of
CLgens
shows
great
significance
not
only
for
practical
application
but
also
the
construction
fundamental
photophysical
theories.
This
perspective
summarizes
unusual
features
in
comparison
traditional
chromophores,
molecular
structures,
unmatched
absorption
excitation,
excitation-dependent
luminescence,
multiple
peaks,
room-temperature
phosphorescence.
Different
theory
through-bond
conjugation
luminophores,
through-space
interactions,
including
n···n
interaction
n···π
interaction,
regarded
emitting
sources
CLgens.
In
addition,
formation
network
clusters
is
proposed
an
efficient
strategy
improve
performance
CLgens,
their
potential
applications
anticounterfeiting,
photoelectronic
devices,
bioimaging
prospected.
ACS Nano,
Journal Year:
2022,
Volume and Issue:
16(6), P. 9228 - 9239
Published: May 27, 2022
Carbon
quantum
dots
(CQDs)
offer
huge
potential
due
to
their
enzymatic
properties
as
compared
natural
enzymes.
Thus,
discovery
of
CQDs-based
nanozymes
with
low
toxicity
from
resources,
especially
daily
food,
implies
a
promising
direction
for
exploring
treatment
strategies
human
diseases.
Here,
we
report
biocompatible
nanozyme
prepared
chlorogenic
acid
(ChA),
major
bioactive
product
coffee.
We
found
that
ChA
CQDs
exhibited
obvious
GSH
oxidase-like
activities
and
subsequently
promoted
cancer
cell
ferroptosis
by
perturbation
GPX4-catalyzed
lipid
repair
systems.
In
vivo,
dramatically
suppressed
the
tumor
growth
in
HepG2-tumor-bearing
mice
negligible
side
toxicity.
Particularly,
hepatoma
H22-bearing
mice,
recruited
massive
tumor-infiltrating
immune
cells
including
T
cells,
NK
macrophages,
thereby
converting
"cold"
"hot"
tumors
activating
systemic
antitumor
responses.
Taken
together,
our
study
suggests
product-derived
coffee
can
serve
biologically
safe
anticancer
therapeutics
may
aid
development
nanotechnology-based
immunotherapeutic.
Small,
Journal Year:
2022,
Volume and Issue:
18(51)
Published: Nov. 3, 2022
Abstract
As
a
relatively
new
type
of
fluorescent
carbon‐based
nanomaterials,
multicolor
carbon
dots
(MCDs)
have
attracted
much
attention
because
their
excellent
biocompatibility,
tunable
photoluminescence
(PL),
high
quantum
yield,
and
unique
electronic
physicochemical
properties.
The
emission
characteristics
(CDs)
obviously
depend
on
the
source
precursor,
reaction
conditions,
environment,
which
directly
or
indirectly
determines
CDs.
Therefore,
this
review
is
first
systematic
classification
summary
multiple
regulation
methods
synthetic
MCDs
reviews
recent
research
progress
in
synthesis
from
variety
precursor
materials
such
as
aromatic
molecules,
small
organic
natural
biomass,
focusing
how
different
produce
corresponding
MCDs.
This
also
introduces
innovative
applications
fields
biological
imaging,
light‐emitting
diodes
(LEDs),
sensing,
anti‐counterfeiting
due
to
PL
It
hoped
that
by
selecting
appropriate
adjustment
methods,
can
inspire
guide
future
design
tailored
MCDs,
provide
help
for
development
multifunctional
Small,
Journal Year:
2023,
Volume and Issue:
19(17)
Published: Jan. 24, 2023
Carbon-based
quantum
dots
(QDs)
have
emerged
as
a
fascinating
class
of
advanced
materials
with
unique
combination
optoelectronic,
biocompatible,
and
catalytic
characteristics,
apt
for
plethora
applications
ranging
from
electronic
to
photoelectrochemical
devices.
Recent
research
works
established
carbon-based
QDs
those
frontline
through
improvements
in
design,
processing,
device
stability.
This
review
broadly
presents
the
recent
progress
synthesis
QDs,
including
carbon
graphene
graphitic
nitride
their
heterostructures,
well
salient
applications.
The
methods
are
first
introduced,
followed
by
an
extensive
discussion
dependence
performance
on
intrinsic
properties
nanostructures
aiming
present
general
strategies
designing
optimal
performance.
Furthermore,
diverse
presented,
emphasis
relationship
between
band
alignment,
charge
transfer,
improvement.
Among
discussed
this
review,
much
focus
is
given
photo
electrocatalytic,
energy
storage
conversion,
bioapplications,
which
pose
grand
challenge
rational
designs.
Finally,
summary
existing
challenges
future
directions
elaborated.
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
