Food Analytical Methods,
Journal Year:
2024,
Volume and Issue:
17(5), P. 739 - 750
Published: March 6, 2024
Abstract
The
synthesis
of
cobalt,
nitrogen
and
sulfur
co
doped
carbon
quantum
dots
(Co-NS-CQDs)
has
become
a
subject
significant
research
interest.
These
CQDs
were
produced
using
single-step
microwave
method,
which
is
considered
environmentally
friendly,
the
entire
process
was
completed
in
just
90
seconds.
In
this
synthesis,
citric
acid
utilized
as
source,
methionine
served
source
for
both
sulfur,
cobaltous
acetate
used
to
introduce
cobalt
ions
into
structure.
synthesized
(CQDs)
exhibit
narrow
size
distribution
high
yield
51.5%,
notably
superior
non-metal-doped
with
38%.
Characterization
these
performed
different
techniques
such
transmission
electron
microscopy
(TEM),
high-resolution
TEM
(HRTEM),
Fourier
transformation
infrared
spectroscopy
(FTIR),
energy
dispersive
X-ray
analysis
(EDX),
diffraction
(XRD)
photoelectron
(XPS).
developed
have
blue
luminescence
at
emission
wavelength
438
nm
after
excitation
350
nm.
Different
factors
affecting
including
dialysis
duration,
reaction
time
temperature.
probe
detection
monosodium
glutamate
(MSG)
various
food
products.
intensity
fluorescence
showed
direct
linear
increase
concentration
MSG
within
range
25–250
µg/mL.
quantitation
limits
2.78
µg/mL
8.44
µg/mL,
respectively.
Additionally,
method
confirmed
by
assessments
analytical
Eco
scale,
Green
Analytical
Procedure
Index
(GAPI),
Greenness
calculator
(Agree).
proposed
presents
several
advantages
over
other
reported
methods
terms
convenience,
rapid
response,
attainment
accurate
precise
results.
Frontiers in Bioengineering and Biotechnology,
Journal Year:
2024,
Volume and Issue:
11
Published: Jan. 22, 2024
Carbon
quantum
dots
(CQDs)
are
gaining
a
lot
more
attention
than
traditional
semiconductor
owing
to
their
intrinsic
fluorescence
property,
chemical
inertness,
biocompatibility,
non-toxicity,
and
simple
inexpensive
synthetic
route
of
preparation.
These
properties
allow
CQDs
be
utilized
for
broad
range
applications
in
various
fields
scientific
research
including
biomedical
sciences,
particularly
bioimaging
biomedicines.
promising
choice
advanced
nanomaterials
biomedicines
unique
chemical,
physical,
optical
properties.
doped
with
hetero
atom,
or
polymer
composite
materials
extremely
advantageous
biochemical,
biological,
since
they
easy
prepare,
biocompatible,
have
beneficial
This
type
CQD
is
highly
useful
phototherapy,
gene
therapy,
medication
delivery,
bioimaging.
review
explores
the
biomedicine,
highlighting
recent
advancements
future
possibilities
increase
interest
numerous
advantages
therapeutic
applications.
Scientific Reports,
Journal Year:
2023,
Volume and Issue:
13(1)
Published: Aug. 7, 2023
The
potentials
of
biomass-based
carbon
quantum
dot
(CQD)
as
an
adsorbent
for
batch
adsorption
dyes
and
its
photocatalytic
degradation
capacity
which
are
congo
red
(CR)
methylene
blue
(MB)
have
been
conducted
in
this
study.
CQDs
properties,
performance,
behaviour,
photoluminescence
characteristics
were
assessed
using
experiments
carried
out
under
operating
conditions
including,
temperature,
pH
dosage.
morphological
analysis
revealed
that
highly
porous,
uniform,
closely
aligned
multi-layered.
presence
hydroxyl,
carboxyl
carbonyl
functional
groups
indicated
the
significance
oxygenated
groups.
Spectral
confirmed
their
photoluminescent
quality
by
exhibiting
high
excitation
intensity
possessing
greenish-blue
fluorescence
UV
radiation.
removal
percentage
adsorbed
both
CR
MB
was
77%
75%.
Langmuir
isotherm
pseudo-second-order
models
fitted
results.
Thermodynamics
process
exothermic
spontaneous,
with
excellent
reusability
stability.
efficiency
on
more
than
90%
sunlight
irradiation
obeyed
first-order
kinetic
model.
These
results
demonstrated
to
be
outstanding
photocatalyst
organic
dye
degradation.
RSC Advances,
Journal Year:
2024,
Volume and Issue:
14(10), P. 7142 - 7156
Published: Jan. 1, 2024
Carbon
nanomaterials
have
attracted
significant
attention
in
the
biomedical
field,
including
for
biosensing,
drug
delivery,
and
tissue
engineering
applications.
Based
on
their
inherent
properties
such
as
unique
structure
high
conductivity,
carbon
can
overcome
current
limitations
research
poor
stability
of
biomolecules,
low
sensitivity
selectivity
biosensors,
difficulty
precise
delivery.
In
addition,
recently,
several
novel
been
integrated
with
to
develop
carbon-based
nanocomposites
application
research.
this
review,
we
discuss
recent
studies
First,
representative
composed
other
nanomaterials.
Next,
applications
field
are
discussed
according
topics
field.
We
engineering.
conclusion,
believe
that
review
provides
potential
applicability
suggests
future
directions
