Environmental Science Nano,
Год журнала:
2024,
Номер
unknown
Опубликована: Янв. 1, 2024
Nanozymes,
as
an
emerging
class
of
biomimetic
enzymes,
not
only
inherit
the
unique
properties
nanomaterials
but
also
endow
them
with
catalytic
functions
that
are
similar
to
biological
enzymes.
Plants,
Год журнала:
2024,
Номер
13(12), С. 1706 - 1706
Опубликована: Июнь 19, 2024
Cadmium
(Cd),
as
the
most
prevalent
heavy
metal
contaminant
poses
serious
risks
to
plants,
humans,
and
environment.
The
ubiquity
of
this
toxic
is
continuously
increasing
due
rapid
discharge
industrial
mining
effluents
excessive
use
chemical
fertilizers.
Nanoparticles
(NPs)
have
emerged
a
novel
strategy
alleviate
Cd
toxicity.
Zinc
oxide
nanoparticles
(ZnO-NPs)
become
important
NPs
used
mitigate
toxicity
abiotic
stresses
improve
crop
productivity.
plants
quickly
absorb
Cd,
which
subsequently
disrupts
plant
physiological
biochemical
processes
increases
production
reactive
oxygen
species
(ROS),
causes
oxidation
cellular
structures
significant
growth
losses.
Besides
this,
also
leaf
osmotic
pressure,
nutrient
uptake,
membrane
stability,
chlorophyll
synthesis,
enzyme
activities,
leading
reduction
in
biomass
Though
possess
an
excellent
defense
mechanism
counteract
toxicity,
not
enough
counter
higher
concentrations
Applying
Zn-NPs
has
proven
potential
mitigating
effects
Cd.
ZnO-NPs
photosynthetic
efficiency,
gene
expression,
can
help
stress.
Additionally,
reduce
absorption
accumulation
complex
relationship
between
ZnO-NPs,
osmolytes,
hormones,
secondary
metabolites
plays
role
tolerance.
Thus,
review
concentrates
on
exploring
diverse
mechanisms
by
ZnO
plants.
In
end,
identified
various
research
gaps
that
need
addressing
ensure
promising
future
findings
contribute
gaining
deeper
understanding
combating
promote
safer
sustainable
remediating
Cd-polluted
soils.
This
allows
for
development
eco-friendly
approaches
remediate
soils
soil
fertility
environmental
quality.
Environmental Science Nano,
Год журнала:
2023,
Номер
11(1), С. 14 - 35
Опубликована: Ноя. 7, 2023
This
review
clarifies
the
translocation
of
zinc
oxide
nanoparticles
(ZnO
NPs)
in
plants,
reveals
molecular
mechanisms
toxicity
regulation,
and
emphasizes
potential
risks
composite
systems
NPs.
Scientific Reports,
Год журнала:
2024,
Номер
14(1)
Опубликована: Авг. 21, 2024
Abstract
With
the
anticipated
foliar
application
of
nanoparticles
(NPs)
as
a
potential
strategy
to
improve
crop
production
and
ameliorate
heavy
metal
toxicity,
it
is
crucial
evaluate
role
NPs
in
improving
nutrient
content
plants
under
Lead
(Pb)
stress
for
achieving
higher
agriculture
productivity
ensure
food
security.
Herein,
Brassica
napus
L.
grown
Pb
contaminated
soil
(300
mg/kg)
was
sprayed
with
different
rates
(0,
25,
50,
100
mg/L)
TiO
2
ZnO-NPs.
The
were
evaluated
growth
attributes,
photosynthetic
pigments,
leaf
exchange
oxidant
antioxidant
enzyme
activities.
results
revealed
that
mg/L
significantly
augmented
plant
growth,
gas
attributes.
Furthermore,
ZnO-NPs
showed
maximum
increase
SPAD
values
(79.1%,
68.9%).
(100
ZnO-NPs)
also
substantially
reduced
malondialdehyde
(44.3%,
38.3%),
hydrogen
peroxide
(59.9%,
53.1%),
electrolyte
leakage
(74.8%,
68.3%),
increased
peroxidase
(93.8%,
89.1%),
catalase
(91.3%,
84.1%),
superoxide
dismutase
(81.8%,
73.5%)
ascorbate
(78.5%,
73.7%)
thereby
reducing
accumulation.
root
(45.7%,
42.3%)
shoot
(84.1%,
76.7%)
concentration
respectively,
compared
control.
Importantly,
macro
micronutrient
analysis
zinc
(58.4%,
78.7%)
iron
(79.3%,
89.9%),
manganese
(62.8%,
68.6%),
magnesium
(72.1%,
93.7%),
calcium
(58.2%,
69.9%)
potassium
(81.5%,
68.6%)
when
control
without
NPs.
same
trend
observed
concentration.
In
conclusion,
we
found
have
greatest
efficiency
at
alleviate
induced
toxicity
on
photosynthesis,
promising
sustainable
safety
contamination.
Nanotechnology Reviews,
Год журнала:
2024,
Номер
13(1)
Опубликована: Янв. 1, 2024
Abstract
Nanobiofertilizers
have
emerged
as
an
innovative
tool
for
enhancing
crop
productivity.
In
the
current
research,
zinc
oxide
nanoparticles
(ZnONPs)
were
mycosynthesized
using
cell-free
supernatant
of
Trichoderma
harzianum
and
optimized
physical
parameters.
Characterization
UV-Visible
spectroscopy,
dynamic
light
scattering
analysis,
zeta
potential
X-ray
diffraction
(XRD)
Fourier
transform
infrared
spectroscopy
(FTIR),
Scanning
electron
microscopy-EDX,
HR-Transmission
microscopy
confirmed
formation
ZnONPs
with
flower-like
morphology
average
size
314
nm.
The
value
was
+1.9
mV
indicating
neutral
NPs.
FTIR
peak
at
401
cm
−1
revealed
presence
ZnONPs.
XRD
analysis
hexagonal
wurtzite
crystalline
nature
effect
10–1,000
ppm
combined
liquid
bio-slurry
(BS)
studied
on
seed
germination
growth
Vigna
radiata.
Combination
250
BS
1:2
ratio
showed
22.6%
increase
in
shoot
length
well
18.4%
root
compared
to
control
vitro
studies.
Vivo
pot
experiments
no
significant
difference
secondary
metabolites
after
60
days,
but
increased
by
38.9%
46.95%
control.
Scientific Reports,
Год журнала:
2024,
Номер
14(1)
Опубликована: Ноя. 13, 2024
Cadmium
(Cd)
can
harm
the
yield
and
quality
of
vegetables,
threatening
food
safety.
Essential
microelements
such
as
iron
are
crucial
for
plant
growth
help
alleviate
heavy
metal
stress.
Recently,
nanoparticles
have
been
studied
eco-friendly
solutions
mitigating
stress
in
plants.
In
present
study,
(FeNPs)
at
0,
100,
300
mg/L
were
applied
soil
drenches
foliar
sprays
to
tomato
plants
under
cadmium
A
comparison
was
made
between
application
methods
FeNPs
by
evaluating
parameters
plants,
including
shoot
length
(SL),
root
(RL),
number
branches
(NB),
leaves
per
(NL),
leaf
area
(LA),
well
assessing
biochemical
antioxidant
enzyme
parameters.
Cd
treatment,
protein
content
decreased
24.71%,
phenolic
flavonoid
also
due
stress,
with
levels
decreasing
from
16.07
6.9
µg
0.36
0.16
µg,
respectively.
Compared
drench,
100
significantly
improved
Cd-stressed
when
used
a
spray,
leading
increases
length,
fruit
weight,
fruits,
leaves,
42%,
66%,
24%,
173%,
45%,
Tomato
treated
this
spray
presented
increased
carotenoid
lycopene
contents.
FeNP
reduced
accumulation
tissues.
This
technique
shows
promise
alleviating
vulnerable
vegetable
tomatoes.