Chemical Reviews,
Год журнала:
2023,
Номер
123(18), С. 11047 - 11136
Опубликована: Сен. 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
Advanced Materials,
Год журнала:
2023,
Номер
35(44)
Опубликована: Март 24, 2023
Abstract
Carbon
dots
(CDs),
as
emerging
carbon
nanomaterials,
have
been
regarded
promising
alternatives
for
electroluminescent
light‐emitting
diodes
(LEDs)
owing
to
their
distinct
characteristics,
such
low
toxicity,
tuneable
photoluminescence,
and
good
photostability.
In
the
last
few
years,
despite
remarkable
progress
achieved
in
CD‐based
LEDs,
device
performance
is
still
inferior
that
of
well‐developed
organic,
heavy‐metal‐based
QDs,
perovskite
LEDs.
To
better
exploit
LED
applications
boost
performance,
this
review,
a
comprehensive
overview
currently
explored
CDs
presented,
focusing
on
key
optical
which
are
closely
related
structural
design
from
core
surface
modifications,
macroscopic
engineering,
including
embedding
matrix
or
spatial
arrangement
CDs.
The
LEDs
display
lighting
based
fluorescence,
phosphorescence,
delayed
fluorescence
emission
also
highlighted.
Finally,
it
concluded
with
discussion
regarding
challenges
plausible
prospects
field.
It
hoped
review
inspires
more
extensive
research
new
perspective
promotes
practical
multiple
directions
current
future
research.
Advanced Functional Materials,
Год журнала:
2024,
Номер
34(25)
Опубликована: Фев. 6, 2024
Abstract
Afterglow
materials
have
attracted
much
attention
owing
to
their
long
luminescence
lifetimes,
large
Stokes
shifts,
and
emission
without
real‐time
excitation.
Compared
with
traditional
organic
afterglow
materials,
carbon
dots
(CDs),
as
a
new
material,
superior
properties
such
easy
preparation,
low
toxicity,
cost.
The
color
of
CDs
can
be
regulated
by
external
factors
excitation
wavelength,
temperature,
time,
which
is
highly
significant
for
expanding
the
diversified
applications
make
them
available
biotechnology
information
applications.
This
review
summarizes
research
progress
multicolor
in
recent
years,
including
regulation
strategies,
preparation
methods,
First,
are
classified
into
three
strategies:
room
temperature
phosphorescence
(RTP),
thermally
activated
delayed
fluorescence
converted
RTP,
based
on
Förster
resonance
energy
transfer,
strategies
regulating
analyzed.
Second,
methods
achieving
summarized
both
matrix‐free
matrix‐confined
aspects.
Then,
anticounterfeiting
encryption,
sensing
bioimaging
introduced
detail.
Finally,
future
challenges
opportunities
prospected
provide
ideas
controlled
design
wide
application.
Advanced Functional Materials,
Год журнала:
2024,
Номер
34(38)
Опубликована: Апрель 12, 2024
Abstract
Carbon
dots
(CDs)
are
highly
desired
in
biological
applications.
However,
achieving
a
balance
between
photoluminescence
(PL)
efficiency
and
photothermal
conversion
(PTCE)
is
challenging.
In
this
study,
an
unprecedent
combination
of
efficient
red
fluorescence
high
PTCE
the
second
near‐infrared
(NIR‐II)
window
sodium‐doped
CDs
system
reported.
Upon
808
nm
laser
irradiation,
photo‐induced
oxidation–reduction
reactions
happened
on
surface
sodium
cation‐functionalized
(Na‐CDs),
leading
to
partial
reduction
surface‐functionalized
(Na)
ions.
The
photo‐reduced
Na
atoms
coordinated
with
sp
2
C
domains
core,
resulting
Na‐doped
(ir‐Na‐CDs)
enhanced
absorption
band
NIR‐II
43%
under
1064
irradiation
(1
W
cm
−2
).
Composing
ir‐Na‐CDs
bovine
serum
albumin
(BSA)
PLQY
emission
31%
water
without
diminishing
region.
Transient
spectra
revealed
that
no
energy
transfer
occurred
center
band,
revealing
novel
independent
Janus
photophysical
processes.
Moreover,
ir‐Na‐CDs@BSA
exhibited
negligible
low
cytotoxicity
demonstrated
tumor
accumulation
capacity
after
intravenous
injection,
enabling
effective
therapy
Abstract
In
recent
years,
carbon
dots
(CDs)
have
garnered
increasing
attention
due
to
their
simple
preparation
methods,
versatile
performances,
and
wide‐ranging
applications.
CDs
can
manifest
various
optical,
physical,
chemical
properties
including
quantum
yield
(QY),
emission
wavelength
(Em),
solid‐state
fluorescence
(SSF),
room‐temperature
phosphorescence
(RTP),
material‐specific
responsivity,
pH
sensitivity,
anti‐oxidation
oxidation,
biocompatibility.
These
be
effectively
regulated
through
precise
control
of
the
CD
process,
rendering
them
suitable
for
diverse
However,
lack
consideration
given
each
feature
during
process
poses
a
challenge
in
obtaining
requisite
features
This
paper
is
analyze
existing
research
present
novel
concepts
ideas
creating
with
different
distinct
The
synthesis
methods
are
discussed
first
section,
followed
by
comprehensive
overview
important
modification
strategy.
Subsequently,
application
reviewed.
Finally,
outlines
current
challenges
controlling
applications,
discusses
potential
solutions,
offers
suggestions
future
research.
Accounts of Chemical Research,
Год журнала:
2022,
Номер
55(23), С. 3312 - 3321
Опубликована: Ноя. 23, 2022
ConspectusFluorescence
is
the
emission
of
light
following
photon
absorption.
This
optical
phenomenon
has
many
applications
in
daily
life,
such
as
LED
lamps,
forensics,
and
bioimaging.
Traditionally,
small-molecule
fluorophores
were
most
common,
but
types
molecules
particles
with
compelling
fluorescence
properties
have
expanded.
For
example,
green
fluorescent
protein
(GFP)
was
isolated
from
jellyfish
won
Nobel
prize
2008
due
to
its
significant
utility
a
biomarker.
Using
intrinsic
GFP,
previously
invisible
biological
processes
substances
can
now
be
observed
studied.
Other
materials
also
been
developed,
greatly
expanding
potential
applications.
Semiconductor
quantum
dots
(QDs),
which
bright
narrow
bandwidth,
are
popular
choice
for
display
technologies.
However,
QDs
made
heavy
metal
elements
Cd
Se,
pose
safety
concerns
environment
human
health.
Thus,
new
organic
being
developed
mitigate
toxicological
while
maintaining
QD
advantages.One
type
material
attracting
great
attention
an
environmentally
friendly
substitute
semiconductor
carbon
(CDs).
CDs
strong
fluorescence,
good
photostability,
low
toxicity
using
variety
precursors,
some
synthesis
scale-up.
since
they
through
different
methods,
structure
differ
preparation
preparation.
There
three
major
CDs:
graphene
(GQDs),
(CQDs),
amorphous
or
polymeric
(PCDs).
Account
focuses
on
PCDs
their
unique
by
comparing
it
other
CDs.
The
processes,
properties,
mechanisms,
discussed
below
emphasis
distinct
attributes
PCDs.PCDs
synthesized
small
polymers.
They
cross-linked
polymer
fluorescence.
possibly
cross-link-enhanced
clusteroluminescence
that
arises
through-space
interactions
heteroatomic-rich
functional
groups.
mechanisms
CDs,
including
contributions
core
surface
states,
may
contribute.
profiles
influenced
chemical
composition,
functionalization,
illumination.
generally
thought
toxicity,
this
further
improved
removing
toxic
byproducts,
functionalizing
surface,
reducing
exposure
minimize
generation
reactive
oxygen
species.
