Nanotechnology Perceptions,
Journal Year:
2024,
Volume and Issue:
unknown, P. 98 - 119
Published: Dec. 7, 2024
Copper
oxide
nanoparticles
are
thought
to
be
an
important
transition
metal
due
their
interesting
properties.
Selenium
is
structural
component
of
numerous
enzymes,
including
glutathione
peroxidase
(GPx),
thioredoxin
reductase,
as
well
deiodinases.The
present
work
was
undertaken
evaluate
the
histological
and
immunohistochemical
alterations
in
adult
rat
ovary
after
oral
administration
CuO-NPs,
assess
potential
ameliorative
impact
selenium.
Sixty
female
albino
rats
were
equally
divided
two
major
groups:
group
I
II.
Group
further
into
three
control
IA,
IB:
given
2000
mg/kg
CuO-NPs
once,
IC:
received
selenium
(0.5
mg/kg),
five
days
before
giving
one
high
dose
CuO-NPs.
Thereafter,
for
14
days.
II
subdivided
IIA
(control),
IIB:
300
mg/kg/dayof
28
days,
IIC:
starting
concomitant
0.5
Both
IB
IIB
showed
signs
follicle
corpora
lutea
degeneration
revealed
increased
numbers
apoptotic
bodies
atretic
follicles.
Increased
reactions
caspase
3
decreased
BCL2
also
demonstrated.
Apoptosis
greater
IB.
IC
IIC
apparent
improvement
structure,
(by
34.3%
acute
study
38%
chronic
study)，decreased
follicles
37.5%
34.78%
study),
compared
groups
respectively.
Environmental Science Nano,
Journal Year:
2024,
Volume and Issue:
11(10), P. 4138 - 4150
Published: Jan. 1, 2024
Extracellular
polymeric
substances
from
the
diatom
Cyclotella
meneghiniana
adsorb
onto
citrate-coated
nAg,
forming
an
eco-corona
and
reducing
nanoparticle
dissolution
aggregation.
Frontiers in Environmental Science,
Journal Year:
2024,
Volume and Issue:
11
Published: Jan. 4, 2024
Based
on
the
up-to-date
knowledge
we
critically
discuss
current
understanding
of
influence
compounds
secreted
by
phytoplankton
species
fate
metal-containing
engineered
nanoparticles
(ENPs)
in
aquatic
settings.
Different
biomolecules,
such
as
extracellular
polymeric
substances
(EPS)
and
exometabolites
play
important,
yet
to
elucidate,
role
dissolution,
colloidal
stability,
transformations
biouptake
ENPs
thus
shape
their
behavior
within
phycosphere.
Phytoplankton
secretions
can
also
mediate
synthesis
from
dissolved
ions
reducing
metals
capping
newly
formed
ENPs.
However,
environmental
significance
this
process
remains
be
demonstrated.
Exposure
triggers
changes
secretion
biomolecules.
An
improved
regulatory
mechanism
exometabolite
due
ENP
exposure
is
essential
for
deciphering
ENPs-phytoplankton
interactions.
Unveiling
biomolecules
modulating
central
understudying
phytoplankton-ENPs
feedbacks,
drivers
mechanisms
environment.
Metals,
Journal Year:
2023,
Volume and Issue:
13(10), P. 1701 - 1701
Published: Oct. 6, 2023
Titanium
alloys
are
difficult
to
machine
and
have
poor
tribological
properties.
This
paper
investigates
the
lubricating
performance
of
γ-Al2O3/ZnO
hybrid
nanofluids
for
Ti-6Al-4V.
Pure
compared,
effects
ratios
studied.
The
results
show
that
outperform
pure
in
terms
lower
friction
coefficients
better
surface
quality.
Moreover,
nanofluid
with
a
mass
ratio
Al2O3
ZnO
2:1
demonstrates
best
lubrication
reduced
coefficient
up
22.1%
compared
base
solution,
resulting
improved
nanoparticles
can
adhere
work
as
coating,
which
further
enhances
water-based
nanofluid.
Asian Journal of Chemical Sciences,
Journal Year:
2023,
Volume and Issue:
14(1), P. 13 - 27
Published: Aug. 7, 2023
Water
plays
a
remarkable
role
in
the
natural
structure
of
living
organism
as
people's
bodies
comprise
60%
water
by
weight.
contamination
due
to
negative
industrialization
and
anthropogenic
activities
is
huge
hazard
humanity.
The
quality
degraded
discharge
organic
Inorganic
compounds,
Pathogens,
herbicides,
pesticides,
drugs,
heavy
metals,
macroscopic
pollutants
bodies,
leading
decrease
oxygen
water.
Heavy
metals
are
well-defined
habitat
because
their
toxicity
bio
accumulative
nature.
adsorption
method
more
appealing
researchers
its
extraordinary
potential
remove
toxic
which
adsorbate
attached
solid
surface
adsorbent
through
physiochemical
interactions.
In
current
research,
plant
leaf
extract
Ziziphus
mauritiana
was
subjected
synthesize
TiO2.
For
Chromium
removal
from
an
aqueous
solution,
TiO2
nanoparticles
will
be
used.
UV-Visible,
FTIR,
powder
SEM
employed
characterize
nanoparticle
synthesis.
Atomic
Absorption
Spectrophotometer
for
metal
analysis
before
after
adsorption.
pH,
dosage
rate,
concentration,
contact
time
were
among
various
experimental
Finally,
improve
results,
statistics
applied
all
recorded
data.
Frontiers in Nanotechnology,
Journal Year:
2023,
Volume and Issue:
5
Published: Oct. 2, 2023
Among
the
physical
and
chemical
properties
of
nanomaterials,
hydrophobicity
is
considered
to
play
a
key
role
in
their
impact
on
environment.
Changes
resulting
from
abiotic
biotic
processes
can
be
used
predict
behaviours
nanoparticles
(NPs)
environment
(e.g.,
aggregation,
toxicity,
bioaccumulation).
Hydrophobicity
changes
induced
by
sulfidation
natural
organic
matter
(NOM)
corona
formation
were
evaluated
monitoring
binding
rate
silver
(Ag)
NPs
engineered
surfaces
using
dark-field
microscopy
(DFM).
It
was
found
that
this
DFM-based
method
more
capable
distinguishing
environmentally
relevant
AgNPs
than
dye
adsorption
method.
Under
conditions
tested
study,
sulfidized
NOM/“lipid-free”
(LF-)NOM
increased
AgNPs.
Both
methods
demonstrate
tendency
become
hydrophobic
after
sulfidation.
This
study
shows
effectively
measure
have
potential
widely
as
fate
predictors
future.
