Zeitschrift für Naturforschung A,
Год журнала:
2024,
Номер
79(8), С. 823 - 840
Опубликована: Май 13, 2024
Abstract
Dodonea
viscosa
-zinc
oxide
(DV-ZnO)
nanocomposite
was
synthesized
and
characterized
using
Fourier
transform
infrared
(FTIR),
thermal
gravimetric
method
(TGA),
X-ray
diffraction
(XRD),
scanning
electron
microscopy
(SEM),
energy
dispersive
spectroscopy
(EDS).
The
most
abundant
compounds
in
the
plant
extract
were
explored
gas
chromatography-mass
spectrometry
(GC-MS).
FTIR
indicated
existence
of
different
functional
groups,
XRD
showed
that
has
hexagonal
wurtzite
shape
ZnO
nanoparticles,
SEM-EDS
a
size
50
nm,
elemental
analysis
depicts
elements
extract,
which
confirms,
along
with
TGA
results,
formation
DV-ZnO
nanocomposite.
synergistic
effect
examined
for
anticorrosion
capabilities
gravimetric,
electrochemical,
surface
methods.
Both
exhibited
corrosion
inhibition
abilities.
However,
incorporation
increased
efficiency
by
20
%.
Weight
loss
electrochemical
methods
concluded
an
80
%
is
due
to
adsorption
inhibitor
on
carbon
steel
surface,
verified
photoelectron
(SEM).
found
follow
both
Langmuir
Temkin
isotherms.
Surface
examination
atomic
force
(AFM)
roughness
decreased
from
sample
submerged
uninhibited
medium
(Sa
=
121.20
nm)
when
adding
22.95
DV
54.73
nm).
Pharmaceuticals,
Год журнала:
2025,
Номер
18(2), С. 154 - 154
Опубликована: Янв. 24, 2025
In
recent
years,
the
world
scientific
community
has
shown
increasing
interest
in
rare
earth
metals
general
and
their
nanoparticles
particular.
Medicine
pharmaceuticals
are
no
exception
this
matter.
review,
we
have
considered
main
opportunities
potential
applications
of
metal
(gadolinium,
europium,
ytterbium,
holmium,
lutetium,
dysprosium,
erbium,
terbium,
thulium,
scandium,
yttrium,
lanthanum,
neodymium,
promethium,
samarium,
praseodymium,
cerium)
biomedicine,
with
data
ranging
from
single
reports
effects
found
vitro
to
numerous
independent
vivo
studies,
as
well
a
number
challenges
for
wider
application.
The
areas
application
metals,
including
future,
diagnosis
treatment
malignant
neoplasms,
therapy
infections,
use
antioxidant
regenerative
properties
nanoparticles.
These
determined
both
by
themselves
need
search
new
approaches
solve
urgent
biomedical
public
health
problems.
Oxide
forms
lanthanides
most
often
used
biomedicine
due
greatest
biocompatibility
nanoscale
size,
providing
penetration
through
biological
membranes.
However,
existing
contradictory
or
insufficient
on
acute
chronic
toxicity
still
make
widespread
difficult.
There
various
modification
methods
(addition
excipients,
creation
nanocomposites,
changing
morphology
particles)
that
can
reduce
these
effects.
At
same
time,
despite
some
representatives
clinical
practice,
further
studies
establish
full
range
pharmacological
toxic
effects,
modify
remain
relevant.
Allium
cepa,
or
onion,
boosts
numerous
health
benefits,
including
anti-diabetic
effects.
Its
rich
array
of
antioxidants
and
sulfur
compounds
not
only
aids
heart
by
lowering
cholesterol
blood
pressure
but
also
exhibits
anti-inflammatory
properties.
Onion's
antibacterial
antiviral
properties
help
combat
infections,
while
its
like
quercetin
show
promise
in
cancer
prevention.
Additionally,
cepa
supports
respiratory
relieving
coughs
colds
digestion
with
prebiotic
Incorporating
onions
into
a
balanced
diet
can
enhance
overall
well-being,
managing
sugar
levels
individuals
diabetes.
Processes,
Год журнала:
2024,
Номер
12(6), С. 1263 - 1263
Опубликована: Июнь 19, 2024
There
is
a
growing
need
for
an
economical
and
efficient
method
capable
of
removing
heavy
metals
from
residual
water.
The
current
contribution
aimed
to
evaluate
the
capacity
onion
peel,
abundant
agroindustrial
waste
product,
remove
divalent
cobalt
(Co2+)
aqueous
solutions.
Onion
peel
was
submitted
proximal
chemical
analysis,
various
operational
factors
involved
in
biosorption
were
tested.
most
suitable
temperature
(30
°C),
pH
(7.0),
biosorbent
particle
size
(300–800
µm)
found.
With
initial
Co2+
concentration
380
mg
L−1,
maximum
removal
59.88
g−1
120
min.
pseudo-second
order
Langmuir
models
provided
best
fit
experimental
kinetics
equilibrium
biosorption,
respectively.
thermodynamic
study
evidenced
exothermic,
non-spontaneous,
favorable
reaction
(ΔH0
=
−5.78
kJ
mol−1;
ΔS0
−21.13
J
mol−1
K−1),
suggesting
formation
stable
bonds
biosorbent-Co2+
complex.
carbonyl
hydroxyl
groups
apparently
play
fundamental
role
removal,
electrostatic
attraction,
ion
exchange,
chemisorption
are
principal
mechanisms.
Thus,
by
has
potential
as
economical,
eco-friendly,
efficient,
sustainable
treatment
wastewater.
