Nanomaterials,
Год журнала:
2023,
Номер
13(24), С. 3122 - 3122
Опубликована: Дек. 12, 2023
Coal-based
Carbon
Dots
(C-CDs)
have
gradually
become
a
research
focus
due
to
the
abundant
raw
materials
and
low
preparation
cost.
Still,
before
coal-based
carbon
dots
are
widely
used,
systematic
biological
toxicity
study
is
basis
for
safe
utilization
of
C-CDs.
However,
level
mechanism
C-CDs
organisms
still
unclear.
To
ensure
C-CDs,
present
investigated
C-CD
nanomaterials
as
stressors
probe
their
biotoxic
effects
on
plant,
bacterial,
animal
cells
well
photocatalytic
oxidative
properties
The
results
showed
that
concentrations
could
promote
various
growth
indicators
wheat,
high
had
significant
inhibitory
wheat
growth;
toxic
(S.
aureus)
at
specific
were
light-related;
meanwhile,
1-5000
μg/mL,
almost
not
HeLa
cells;
however,
when
irradiated
365
nm,
even
by
generate
singlet
oxygen
(1O2)
oxidation
under
nm
excitation
light,
resulting
in
enhanced
cells.
ACS Applied Materials & Interfaces,
Год журнала:
2024,
Номер
16(30), С. 39090 - 39103
Опубликована: Июль 20, 2024
Prolonged
drought
conditions
are
a
critical
challenge
for
agricultural
advancement,
threatening
food
security
and
environmental
equilibrium.
To
overcome
these
issues,
enhancing
plant
resilience
to
is
essential
growth
sustainable
agriculture.
In
this
study,
blue-emitting
antioxidant
carbon
dots
(B-CDs),
synthesized
from
citric
acid
ascorbic
acid,
emerged
as
promising
solution
enhance
the
resistance
of
peas
(Pisum
sativum
L.).
B-CDs
can
efficiently
scavenge
reactive
oxygen
species
(ROS),
which
harmful
in
excess
plants
under
stress
conditions.
Through
detailed
experimental
analyses
density
functional
theory
(DFT)
studies,
it
found
that
possess
structures
featuring
eight-membered
aromatic
rings
with
abundant
oxygen-containing
groups,
providing
active
sites
reactions
ROS.
The
practical
benefits
evident
tests
pea
exposed
These
show
remarkable
reduction
ROS
accumulation,
an
increase
photosynthetic
efficiency
due
improved
electron
transfer
rates,
significant
enhancement.
Compared
untreated
controls
stress,
application
results
impressive
fresh
dry
weights
both
shoots
roots
seedlings
by
39.5
43.2%
121.0
73.7%
weights,
respectively.
This
suggests
significantly
mitigate
negative
effects
on
plants.
Thus,
leveraging
opens
novel
avenue
abiotic
stressors
through
nanotechnology,
thereby
offering
pathway
counter
challenges
Nanomaterials,
Год журнала:
2023,
Номер
13(24), С. 3122 - 3122
Опубликована: Дек. 12, 2023
Coal-based
Carbon
Dots
(C-CDs)
have
gradually
become
a
research
focus
due
to
the
abundant
raw
materials
and
low
preparation
cost.
Still,
before
coal-based
carbon
dots
are
widely
used,
systematic
biological
toxicity
study
is
basis
for
safe
utilization
of
C-CDs.
However,
level
mechanism
C-CDs
organisms
still
unclear.
To
ensure
C-CDs,
present
investigated
C-CD
nanomaterials
as
stressors
probe
their
biotoxic
effects
on
plant,
bacterial,
animal
cells
well
photocatalytic
oxidative
properties
The
results
showed
that
concentrations
could
promote
various
growth
indicators
wheat,
high
had
significant
inhibitory
wheat
growth;
toxic
(S.
aureus)
at
specific
were
light-related;
meanwhile,
1-5000
μg/mL,
almost
not
HeLa
cells;
however,
when
irradiated
365
nm,
even
by
generate
singlet
oxygen
(1O2)
oxidation
under
nm
excitation
light,
resulting
in
enhanced
cells.
