Next Materials,
Journal Year:
2024,
Volume and Issue:
3, P. 100155 - 100155
Published: Feb. 24, 2024
As
the
amount
of
biomass
waste
continues
to
increase,
there
is
a
growing
need
for
innovative
solutions.
Biomass
derived
carbon
dots
(BWCDs)
are
promising
way
convert
into
valuable
materials
in
sustainable
and
environmentally
friendly
way.
These
biocompatible
dots,
with
their
abundant
raw
customizable
properties,
offer
versatile
solutions
both
dissolved
solid
forms.
While
forms
advantages,
BWCDs
state
characterized
primarily
by
improved
stability,
tailored
functionalities,
increased
emission.
However,
widespread
use
solid-state
hindered
several
obstacles.
In
this
review,
unique
properties
synthesis
methods
explained.
Various
techniques
such
as
hydrothermal
microwave-assisted
synthesizing
effects
on
precursors
examined.
Strategies
preparation
that
improve
stability
functionality
described.
Applications
field
optoelectronics
science
emphasize
versatility.
Although
efficiency
long-term
challenge,
report
gives
an
outlook
future
developments.
It
emphasizes
promise
alternatives
embodies
fusion
recycling
advanced
drives
technological
innovation.
Scientific Reports,
Journal Year:
2023,
Volume and Issue:
13(1)
Published: April 19, 2023
Abstract
In
this
research
work,
carbon
dots
(CDs)
were
synthesized
from
the
renewable
leaves
of
an
indigenous
medicinal
plant
by
one-pot
sand
bath
method,
Azadirachta
indica
.
The
CDs
characterized
for
its
optical
properties
using
UV–Vis,
Fluorescence
and
Fourier
transform
infrared
(FT-IR)
spectrophotometry
structural
dynamic
light
scattering
(DLS),
X-ray
Diffraction
(XRD)
high
resolution
Transmission
electron
microscopy
(HR-TEM).
exhibited
concentration
dependent
biocompatibility
when
tested
in
mouse
fibroblast
L929
cell
line.
EC
50
values
biomedical
studies,
free
radical
scavenging
activity
(13.87
μgmL
−1
),
total
antioxidant
capacity
(38
)
proved
exceptionally
good.
These
showed
appreciable
zone
inhibition
examined
on
four
bacterial
(two
gram-positive
gram-negative)
two
fungal
strains
at
minimum
concentrations.
Cellular
internalisation
studies
performed
human
breast
cancer
cells
(MCF
7-
bioimaging)
revealed
applicability
bioimaging,
wherein
inherent
fluorescence
utilised.
Thus,
developed
are
potential
as
antioxidants
antimicrobial
agents.
ACS Omega,
Journal Year:
2023,
Volume and Issue:
8(31), P. 28133 - 28142
Published: July 28, 2023
In
this
cutting-edge
research
era,
silver
nanoparticles
impose
a
substantial
impact
because
of
their
wide
applicability
in
the
field
engineering,
science,
and
industry.
Regarding
vast
applications
nanoparticles,
study,
crystallographic
characteristics
nanostructures
extracted
from
natural
resources
have
been
studied.
First,
biosynthetic
were
synthesized
using
Pathor
Kuchi
leaf
(PKL)
extract
as
mediator,
crystal
structures
analyzed
by
UV-visible
absorption
spectroscopy,
Fourier
transform
infrared
(FTIR)
X-ray
diffraction
(XRD),
field-emission
scanning
electron
microscopy
(FESEM),
energy-dispersive
(EDX)
analysis.
The
average
crystallite
size
nanoparticle
was
determined
to
be
20.26
nm,
also
lattice
strain,
intrinsic
stress,
dislocation
density
measured
2.19
×
10
Molecules,
Journal Year:
2023,
Volume and Issue:
28(6), P. 2772 - 2772
Published: March 19, 2023
Carbon
quantum
dots
are
the
materials
of
a
new
era
with
astonishing
properties
such
as
high
photoluminescence,
chemical
tuneability
and
biocompatibility.
Since
their
discovery,
carbon
have
been
described
nanometric
high-fluorescent
nanoparticles,
but
this
definition
has
become
weaker
year
after
year.
Nowadays,
classification
physical
explanation
optical
structure
remain
matter
debate.
In
review,
we
provide
clear
discussion
on
these
points,
providing
starting
point
for
rationalization
comprehensive
view
features
dots.
Materials Advances,
Journal Year:
2024,
Volume and Issue:
5(11), P. 4618 - 4633
Published: Jan. 1, 2024
The
study
on
carbon
dot
fluorescence
sensors
for
glutathione
in
human
serum
samples,
the
classified
CD
fluorescent
probes
into
three
categories:
single
emission
of
CDs,
ratiometric
sensing
and
visual
detection
CDs.
Beilstein Journal of Nanotechnology,
Journal Year:
2022,
Volume and Issue:
13, P. 1068 - 1107
Published: Oct. 5, 2022
Carbon
dots
(CDs)
show
extensive
potential
in
various
fields
such
as
sensing,
bioimaging,
catalysis,
medicine,
optoelectronics,
and
drug
delivery
due
to
their
unique
properties,
that
is,
low
cytotoxicity,
cytocompatibility,
water-solubility,
multicolor
wavelength
tuned
emission,
photo-stability,
easy
modification,
strong
chemical
inertness,
etc.
This
review
article
especially
focuses
on
the
recent
advancement
(2015–2022)
green
synthesis
of
CDs,
application
metal
ions
sensing
microbial
detection,
viability
studies
well
applications
pathogenic
control
plant
growth
promotion.
Biosensors,
Journal Year:
2023,
Volume and Issue:
13(3), P. 335 - 335
Published: March 2, 2023
Biothiols,
such
as
cysteine
(Cys),
homocysteine
(Hcy),
and
glutathione
(GSH),
play
a
vital
role
in
gene
expression,
maintaining
redox
homeostasis,
reducing
damages
caused
by
free
radicals/toxins,
etc.
Likewise,
abnormal
levels
of
biothiols
can
lead
to
severe
diseases,
Alzheimer’s
disease
(AD),
neurotoxicity,
hair
depigmentation,
liver/skin
damage,
To
quantify
the
biological
system,
numerous
low-toxic
probes,
fluorescent
quantum
dots,
emissive
organic
composited
nanomaterials,
etc.,
have
been
reported
with
real-time
applications.
Among
these
carbon-dots
(CDs)
become
attractive
for
quantification
because
advantages
easy
synthesis,
nano-size,
crystalline
properties,
low-toxicity,
applicability.
A
CDs-based
assay
be
achieved
“Turn-On”
“Turn-Off”
responses
via
direct
binding,
metal
complex-mediated
detection,
composite
enhanced
interaction,
reaction-based
reports,
so
forth.
date,
availability
review
focused
on
detection
information
recent
trends,
mechanistic
aspects,
linear
ranges,
LODs,
real
applications
is
lacking,
which
allows
us
deliver
this
comprehensive
review.
This
delivers
valuable
carbon-dots-based
assays,
underlying
mechanism,
their
applications,
probe/CDs
selection,
sensory
requirement,
merits,
limitations,
future
scopes.
ACS Materials Letters,
Journal Year:
2024,
Volume and Issue:
6(5), P. 1968 - 1976
Published: April 12, 2024
Polypropylene
is
one
of
the
most
challenging
plastics
to
recycle
or
upcycle
due
its
excellent
chemical
and
thermal
stability.
Here,
we
report
an
effective
two-step
synthesis
prepare
carbon
dots
(CDs)
from
polypropylene
(PP).
In
first
step,
bulk
PP
converted
nanoparticles
(PP-NPs)
by
using
a
reprecipitation
process.
second
PP-NPs
are
carbonized
hydrothermal
treatment.
The
size,
structure,
photonic
properties
PP-CDs
vary
significantly
with
treatment
temperature.
At
higher
temperature,
product
∼2.5
nm
in
diameter
quantum
yield
10.3%
free
unconverted
PP.
lower
temperature
(120
°C),
large
size
(∼70
nm)
exhibit
low
(0.2%).
This
work
demonstrates
method
fully
convert
shows
high
degree
tunability
product.
