Agronomy,
Год журнала:
2024,
Номер
14(10), С. 2324 - 2324
Опубликована: Окт. 10, 2024
The
interaction
of
nano-fertilizers
with
commercially
important
crops
can
be
a
promising
solution
to
increase
both
crop
yield
and
quality.
This
study
investigated
the
effect
iron
oxide
nanoparticles
(Fe3O4
NPs)
on
four-week-old
garden
cress
(Lepidium
sativum
L.)
seedlings.
Iron
is
an
essential
micronutrient
for
plants
but
not
always
available
in
sufficient
quantities,
which
lead
chlorosis
even
plant
death.
seedlings
were
grown
hydroponically,
three
concentrations
(1
mg/L,
5
10
mg/L)
NPs,
alongside
control
group
no
additions.
During
experiment,
following
methods
employed:
measurement
stem
root
length,
spectrophotometry
determine
chlorophyll
absorbance
concentration,
RAPD
technique
assess
genotoxicity
Fe3O4
NPs.
demonstrated
significant
shoot
length
at
all
compared
(p
<
0.05;
p
0.01).
light
absorption
concentration
levels
experimental
groups
significantly
increased
0.001).
Genotoxicity
analysis
revealed
that
genotoxic
impact
NPs
genome
was
only
10%,
statistically
insignificant
level.
findings
suggest
exhibit
low
have
potential
enhance
growth
content
hydroponic
conditions.
International Journal of Molecular Sciences,
Год журнала:
2024,
Номер
25(18), С. 9871 - 9871
Опубликована: Сен. 12, 2024
This
study
presents
the
phytosynthesis
of
silver-based
nanoparticles
using
tomato
flower
waste
extracts
for
first
time
in
literature.
The
determination
total
polyphenolic
and
flavonoid
contents
showed
high
gallic
acid
equivalents
(6436-8802
mg
GAE/kg
dm)
quercetin
(378-633
QE/kg
dm),
respectively,
dependent
on
extraction
method.
By
Ultra
Performance
Liquid
Chromatography
technique,
14
compounds
were
identified
quantified
extracts.
abundant
phenolic
caffeic
(36,902-32,217
mg/kg)
chlorogenic
(1640-1728
mg/kg),
catechin
(292-251
luteolin
(246-108
mg/kg).
Transmission
electron
microscopy
revealed
a
particle
size
range
14-40
nm.
Fourier
Transform
infrared
spectroscopy
X-ray
diffraction
studies
confirmed
silver/silver
oxide
nanoparticles.
These
findings
hold
significant
results
antibacterial
antitumoral
potential
applications
obtained
nanoparticles,
opening
new
areas
research
development
inspiring
further
exploration.
impact
this
field
metallic
nanoparticle
is
substantial,
as
it
introduces
novel
approach
could
lead
to
advancements
field.
Nanomaterials,
Год журнала:
2025,
Номер
15(4), С. 288 - 288
Опубликована: Фев. 13, 2025
Various
metal-based
nanomaterials
have
been
the
focus
of
research
regarding
their
use
in
controlling
pests
and
diseases
improving
crop
yield
quality.
In
this
study,
we
synthesized
via
a
solvothermal
procedure
pegylated
zinc-doped
ferrite
(ZnFer)
NPs
characterized
physicochemical
properties
by
X-ray
diffraction
(XRD),
vibrating
sample
magnetometry
(VSM),
thermogravimetric
analysis
(TGA),
FT-IR
UV-Vis
spectroscopies,
as
well
transmission
electron
microscopy
(TEM).
Subsequently,
impact
on
tomato
photosynthetic
efficiency
was
evaluated
using
chlorophyll
fluorescence
imaging
to
estimate
light
energy
photosystem
II
(PSII),
30,
60,
180
min
after
foliar
spray
plants
with
distilled
water
(control
plants)
or
15
mg
L-1
30
ZnFer
NPs.
The
PSII
responses
leaves
showed
time-
dose-dependent
biphasic
hormetic
responses,
short-time
inhibitory
effect
low
dose
stimulatory
high
dose,
while
at
longer
exposure
period,
reverse
phenomenon
recorded
doses.
An
function
observed
more
than
~120
both
concentrations,
implying
negative
photochemistry.
We
may
conclude
that
NPs,
despite
ability
induce
hormesis
photochemistry,
function.
Plants,
Год журнала:
2025,
Номер
14(7), С. 1075 - 1075
Опубликована: Апрель 1, 2025
Maize
(Zea
mays
L.),
an
important
crop
used
for
animal
feed
and
human
consumption,
is
currently
threatened
by
water
shortage.
Recently,
the
usage
of
nanomaterials
has
attracted
worldwide
attention
due
to
their
applications
in
various
fields.
This
research
aimed
evaluate
comparative
efficacy
different
metal
oxide
nanoparticles
mitigating
drought
stress
maize.
Iron
oxide,
manganese
copper
were
biosynthesized
from
leaf
extract
Conocarpus
erectus
L.
characterized
via
UV-Vis,
XRD,
FTIR,
SEM.
The
synthesized
initially
optimized
at
concentrations
(0,
25,
50,
75,
100
ppm).
doses
each
nanoparticle
then
applied
maize
plants
under
levels
(50%
FC,
75%
100%
FC).
Compared
control,
application
significantly
improved
growth
parameters
30%
50%
27%
26%
FC.
chlorophyll
content
also
35%,
32%,
29%
as
compared
respectively.
antioxidants
(CAT,
POD,
SOD,
APX)
37%,
34%,
31%,
Moreover,
use
resulted
a
significant
decrease
cellular
oxidative
(MDA,
H2O2)
23%
50%FC,
Biosynthesized
FeO
NPs,
MnO
Cu
NPs
have
demonstrated
potential
maize,
suggesting
promising
approach
enhance
performance
water-limited
conditions.
Further
recommended
explore
long-term
impacts
practical
these
findings
sustainable
agriculture.
Ecotoxicology and Environmental Safety,
Год журнала:
2024,
Номер
282, С. 116670 - 116670
Опубликована: Июль 8, 2024
The
increasing
use
of
nanoparticles
is
driving
the
growth
research
on
their
effects
living
organisms.
However,
studies
cellular
respiration
are
still
limited.
remodeling
cellular-respiration-related
indices
in
plants
induced
by
zinc
oxide
(nnZnO)
and
its
bulk
form
(blZnO)
was
investigated
for
first
time.
For
this
purpose,
barley
(Hordeum
vulgare
L.)
seedlings
were
grown
hydroponically
one
week
with
addition
test
compounds
at
concentrations
0,
0.3,
2,
10
mg
mL
