Particle & Particle Systems Characterization,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 14, 2024
Abstract
Graphene
quantum
dots
are
a
subclass
of
graphene‐based
materials
that
exhibit
unique
properties
due
to
their
nanoscale
size
and
confinement
effects.
Discovered
in
the
early
21st
century,
these
zero‐dimensional
carbon
nanomaterials
have
rapidly
become
important
nanotechnology
research
diverse
applications.
In
recent
years,
medical
community
has
been
greatly
benefited
from
materials,
significantly
enhancing
human
health
well‐being
with
theranostic
approaches.
The
present
review
explores
various
applications
graphene
diagnostic
therapeutic,
unraveling
potential
contributions
advancing
healthcare.
Furthermore,
this
elucidates
synthesis
methods
utilized
for
dots,
encompassing
range
top‐down
bottom‐up
Next,
fundamental
including
structural,
optical,
electrical
make
them
potent
nanomaterial
use
healthcare
elucidated
enhanced
reader
comprehension.
Additionally,
opportunities
challenges
ahead,
offering
valuable
insights
help
scientific
strategically
expand
dot‐based
advanced
Heliyon,
Journal Year:
2024,
Volume and Issue:
10(16), P. e35760 - e35760
Published: Aug. 1, 2024
Graphene
quantum
dots
(GQDs)
are
an
evolving
class
of
carbon-based
nanomaterial,
seizing
tremendous
attention
owing
to
their
intense
optical
property,
engineered
shapes
and
structures,
good
photostability.
Being
a
zero-dimensional
form
carbon
structure,
GQDs
have
superior
photoluminescent
behavior,
tunable
emission
absorption,
excellent
biocompatibility,
low
cytotoxicity,
hydrophilic
nature,
modifying
surface
states.
Their
water
dispersibility
functionalized
involving
heteroatoms
various
functional
groups
onto
the
GQDs,
make
them
particularly
suitable
for
biological
applications.
Based
on
absolute
luminescence
properties,
emit
blue,
green,
yellow,
red
light
under
ultraviolet
irradiation.
Amongst
three
colors,
can
achieve
deeper
penetration
into
tissues,
cellular
distribution,
bio-sensing
cell
imaging,
drug
delivery,
serves
as
better
candidate
photodynamic
therapy.
The
overall
objective
this
review
is
provide
comprehensive
overview
synthesis
methods
fluorescence
graphene
(RF-GQDs),
critical
comparative
analyses
spectral
techniques
used
characterization,
photoluminescence
mechanisms
underpinning
emission,
significance
chemically
functionalizing
GQDs'
edges
in
achieving
discussed
depth.
This
also
discusses
effective
applications
challenges
associated
with
RF-GQDs
examined,
providing
insights
future
potential
clinical
industrial
C – Journal of Carbon Research,
Journal Year:
2024,
Volume and Issue:
10(4), P. 92 - 92
Published: Oct. 15, 2024
The
increasing
presence
of
antibiotics
in
wastewater
poses
significant
environmental
risks,
including
the
promotion
antibiotic
resistance
and
harm
to
aquatic
ecosystems.
This
study
reviews
advancements
graphene-based
technologies
for
removing
from
between
2016
2024.
Graphene-based
platforms,
such
as
graphene
oxide
(GO),
reduced
(rGO),
composites,
have
shown
great
promise
this
field
because
their
exceptional
adsorption
capacities
rapid
photocatalytic
degradation
capabilities.
Functionalized
materials
integrated
with
other
substances,
metal
oxides
polymers,
enhanced
performance
terms
removal
through
mechanisms
photocatalysis.
These
been
evaluated
under
various
conditions,
pH
temperature,
demonstrating
practical
applicability.
Despite
challenges
related
scalability,
cost-effectiveness,
impact,
during
period
highlight
potential
effective
removal,
paving
way
safer
more
sustainable
management
practices.
Materials Horizons,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Jan. 1, 2024
Alzheimer's
disease
(AD)
is
a
chronic,
progressive
neurodegenerative
disorder
marked
by
permanent
impairment
of
brain
function
across
the
whole
brain.
This
condition
results
in
deterioration
cognitive
patients
and
frequently
associated
with
psychological
symptoms
such
as
agitation
anxiety,
imposing
significant
burden
on
both
their
families.
Nanomaterials
possess
numerous
distinctive
physical
chemical
features
that
render
them
extensively
utilized.
In
biomedical
domain,
nanomaterials
can
be
utilized
for
prevention
therapy,
including
medication
delivery
systems,
biosensors,
tissue
engineering.
article
explores
etiology
potential
molecular
processes
AD,
well
application
carbon-based
diagnosis
treatment
AD.
Some
are
carbon
quantum
dots,
nanotubes,
graphene,
among
others.
These
materials
physicochemical
highly
promising
applications
biosensing,
drug
delivery,
neuroprotection,
photothermal
treatment.
addition,
this
review
explored
various
therapeutic
approaches
AD
terms
reducing
inflammation,
preventing
oxidative
damage,
inhibiting
Aβ
aggregation.
The
advent
nanotechnology
has
facilitated
development
novel
disease.
strategies
provide
early
diagnosis,
effective
intervention
neuroprotection
Journal of the Chinese Chemical Society,
Journal Year:
2024,
Volume and Issue:
71(8), P. 852 - 861
Published: Aug. 1, 2024
Abstract
The
application
of
iron
oxide
quantum
dots
(IOQDs)
in
this
study
led
to
the
development
a
straightforward,
easy,
and
selective
approach
for
cytosine
sensing.
To
examine
capability
IOQDs
detecting
nucleobases,
attempts
have
been
made
gain
insight
into
characteristics
IOQDs,
including
UV/Vis
spectroscopic
analysis,
infrared
spectroscopy,
fluorescence
transmission
electron
microscopy,
powder‐XRD.
We
introduced
with
mean
particle
size
distribution
5.71
±
0.08
nm
by
harnessing
turn‐on
phenomenon.
fostering
response
was
triggered
presence
cytosine.
In
comparison,
other
nucleobases
did
not
further
induce
signal
IOQDs.
It
concluded
that
hydrogen
bonding
bridging
carboxylate
hydroxyl
groups
on
surface
QDs
amine
results
elevation
fluorescence.
Applied Sciences,
Journal Year:
2024,
Volume and Issue:
14(19), P. 8807 - 8807
Published: Sept. 30, 2024
The
emergence
of
bio-based
carbonaceous
materials
for
various
applications
has
attracted
significant
attention
during
the
last
few
years.
Here,
we
report
a
rapid,
efficient,
and
reproducible
microwave-assisted
synthesis
graphene
quantum
dots
(GQDs)
with
identical
features
irrespective
nature
biomass
waste
investigated.
synthesized
GQDs
were
fully
characterized
by
X-ray
photoelectron
spectroscopy,
Fourier-transform
infrared
transmission
electron
microscopy,
dynamic
light
scattering.
nanoparticles
displayed
narrow
sizes
1–2
nm
high
solubility
in
polar
solvents
such
as
water
ethanol.
protocol
described
herein
is
advantageous
comparison
to
dealing
from
previously
reported
since
our
faster
owing
use
microwave
heating
avoidance
dialysis
purification
step.
Furthermore,
solution,
water-soluble
particles
showed
excitation-dependent
photoluminescence
ranging
blue
orange
emission
wavelengths.
Interestingly,
thin
films
white-light
under
325
UV-light
excitation,
while
aggregation-induced
quenching
was
usually
observed,
opening
way
their
potential
phosphor
white-light-emitting
diodes.
Particle & Particle Systems Characterization,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 14, 2024
Abstract
Graphene
quantum
dots
are
a
subclass
of
graphene‐based
materials
that
exhibit
unique
properties
due
to
their
nanoscale
size
and
confinement
effects.
Discovered
in
the
early
21st
century,
these
zero‐dimensional
carbon
nanomaterials
have
rapidly
become
important
nanotechnology
research
diverse
applications.
In
recent
years,
medical
community
has
been
greatly
benefited
from
materials,
significantly
enhancing
human
health
well‐being
with
theranostic
approaches.
The
present
review
explores
various
applications
graphene
diagnostic
therapeutic,
unraveling
potential
contributions
advancing
healthcare.
Furthermore,
this
elucidates
synthesis
methods
utilized
for
dots,
encompassing
range
top‐down
bottom‐up
Next,
fundamental
including
structural,
optical,
electrical
make
them
potent
nanomaterial
use
healthcare
elucidated
enhanced
reader
comprehension.
Additionally,
opportunities
challenges
ahead,
offering
valuable
insights
help
scientific
strategically
expand
dot‐based
advanced
