Graphene
quantum
dots
(GQDs)
have
garnered
significant
attention
in
recent
years
due
to
their
unique
properties
and
promising
applications
various
fields
such
as
electronics,
optoelectronics,
bioimaging,
sensing.
The
synthesis
of
GQDs
is
a
critical
step
harnessing
potential,
numerous
methods
been
developed
produce
with
specific
properties.
This
review
provides
an
overview
the
different
techniques
employed
for
synthesizing
GQDs,
including
top-down
bottom-up
approaches.
Furthermore,
it
discusses
advantages,
limitations,
potential
each
method,
offering
insights
into
future
direction
GQD
research.
Nano Biomedicine and Engineering,
Journal Year:
2024,
Volume and Issue:
unknown
Published: April 1, 2024
This
study
explores
the
emerging
multifunctional
applications
of
graphene
quantum
dots
(GQDs)
in
cancer
treatment,
specifically
focusing
on
photodynamic/photothermal
therapy
(PDT/PTT)
and
hyperthermia
therapy.
GQDs
are
a
nanoscale
carbon-based
material
with
remarkable
optical
thermal
properties
that
hold
considerable
promise
for
various
biomedical
applications,
particularly
The
review
also
focuses
emphasizing
importance
continued
research
development
GQD
synthesis,
functionalization,
delivery
systems.
With
their
unique
multifaceted
nature,
offer
promising
opportunities
advancing
therapeutics
toward
more
effective
targeted
treatments.
We
discuss
current
trends
discrimination
GQD-based
PDT/PTT
strategies,
showcasing
diverse
techniques
approaches
employed
to
maximize
therapeutic
benefits.
Furthermore,
we
elaborate
critical
dilemmas
strategies
clinical
settings.
Advancements
have
potential
significantly
improve
treatment
efficacies
reduce
side
effects
Nanotechnology
sparks
discussions
and
concerns
about
the
impacts
of
new
nanomaterials
on
health
environment.
It
holds
importance
in
various
domains
due
to
its
unique
struc-tures.
Carbon
dots
(C-dots)
are
versatile
with
applications
bioimaging,
sensing,
catalysis,
polymers,
solar
cells,
more.
They
offer
desirable
characteristics
such
as
stability,
cost-effectiveness,
biocompatibility,
high
photoluminescent
quantum
yield.
C-dots
have
potential
replace
expensive
fluorophores
cells.
catego-rized
carbon
dots,
graphene
carbonized
polymer
dots.
outstanding
optical
photoelectric
properties
low
toxicity.
Bottom-up
top-down
approaches
used
for
synthesis
(CDs),
each
method
im-pacting
their
physicochemical
characteristics.
The
choice
depends
de-sired
application
requirements.
Researchers
combine
these
methods
ex-plore
enhance
efficiency
tailor
CD
properties.
CDs
di-verse
chemical
structures
modified
oxygen,
polymer-based,
or
amino
groups
surface.
Various
characterization
HRTEM,
XPS,
analysis
(PL,
UV)
determine
structure.
(CDs)
cutting-edge
fluorescent
nano-materials
remarkable
qualities
toxicity,
environmental
friendliness,
water
solubility,
photo-stability.
easily
adjustable
terms
properties,
making
them
highly
fields.
find
bio-imaging,
nanomedicine,
drug
delivery,
LEDs,
photo-catalysis,
elec-tro-catalysis,
other
related
areas.
Nano Letters,
Journal Year:
2024,
Volume and Issue:
24(17), P. 5387 - 5392
Published: April 17, 2024
Topological
phases
in
laterally
confined
low-dimensional
nanographenes
have
emerged
as
versatile
design
tools
that
can
imbue
otherwise
unremarkable
materials
with
exotic
band
structures
ranging
from
topological
semiconductors
and
quantum
dots
to
intrinsically
metallic
bands.
The
periodic
boundary
conditions
define
the
topology
of
a
given
lattice
thus
far
prevented
translation
this
technology
quasi-zero-dimensional
(0D)
domain
small
molecular
structures.
Here,
we
describe
synthesis
polycyclic
aromatic
hydrocarbon
(PAH)
featuring
two
localized
zero
modes
(ZMs)
formed
by
junction
interface
between
trivial
nontrivial
phase
within
single
molecule.
First-principles
density
functional
theory
calculations
predict
strong
hybridization
adjacent
ZMs
gives
rise
an
exceptionally
HOMO–LUMO
gap.
Scanning
tunneling
microscopy
spectroscopy
corroborate
structure
9/7/9-double
reveal
experimental
quasiparticle
gap
0.16
eV,
corresponding
carbon-based
molecule
long-wavelength
infrared
(LWIR)
absorber.
Graphene
quantum
dots
(GQDs)
have
garnered
significant
attention
in
recent
years
due
to
their
unique
properties
and
promising
applications
various
fields
such
as
electronics,
optoelectronics,
bioimaging,
sensing.
The
synthesis
of
GQDs
is
a
critical
step
harnessing
potential,
numerous
methods
been
developed
produce
with
specific
properties.
This
review
provides
an
overview
the
different
techniques
employed
for
synthesizing
GQDs,
including
top-down
bottom-up
approaches.
Furthermore,
it
discusses
advantages,
limitations,
potential
each
method,
offering
insights
into
future
direction
GQD
research.
