Crystals,
Journal Year:
2023,
Volume and Issue:
13(3), P. 450 - 450
Published: March 4, 2023
Selenium
(Se)
is
a
nutritional
component
necessary
for
animal
and
plant
development
reproduction.
nanoparticles
(SeNPs)
have
high
absorption
rate
during
routine
supplementation.
In
the
current
study,
cell-free
extract
of
Aspergillus
terreus
was
used
as
reducing
stabilizing
agent
in
synthesis
SeNPs
using
green
eco-friendly
method.
The
mycosynthesized
were
characterized
by
UV-visible
spectrophotometry,
Fourier
transform
infrared
spectroscopy,
X-ray
diffraction
dynamic
light
scattering,
transmission
electron
microscopy,
scanning
microscopy.
results
characterization
process
showed
that
had
spherical
shapes
sizes
less
than
100
nm.
Results
exhibited
promising
antibacterial
activity
against
both
Gram-positive
Gram-negative
bacteria
where
inhibition
zones
14,
20,
16,
13
mm
toward
S.
haemolyticus,
aureus,
E.
coli,
K.
pneumoniae,
respectively.
However,
it
weak
antifungal
C.
albicans,
zone
12
mm.
efficacy
decolorization
malachite
dye
investigated.
illustrated
rapid
biodegradation
dye,
reaching
up
to
89%
after
240
min.
conclusion,
successfully
biosynthesized
A.
demonstrated
antimicrobial
photocatalytic
activities.
Crystals,
Journal Year:
2023,
Volume and Issue:
13(11), P. 1576 - 1576
Published: Nov. 8, 2023
Green
synthesis
offers
a
superior
alternative
to
traditional
methods
for
producing
metal
and
oxide
nanoparticles.
This
approach
is
not
only
benign
safe
but
also
cost-effective,
scalable,
straightforward,
operating
under
ambient
conditions.
Notable
metals
nanoparticles,
such
as
manganese
oxides,
iron
silver,
gold,
have
been
produced
using
various
bio-reductants
derived
from
plant
extracts.
These
biological
agents
expedite
the
reduction
process
stabilize
serving
dual
roles
reducing
capping
agents.
review
presents
green
of
nanoparticles
(NPs)
obtained
biogenic
wastes
The
green-synthesized
nanostructured
MnO2
are
evaluated
potential
photocatalyst
water
treatment
an
electrode
material
in
lithium-ion
batteries
supercapacitors.
green-derived
examined
promising
antioxidant,
anti-inflammatory,
anti-diabetic
Additionally,
this
discusses
precious
specifically
silver
(Ag
NPs)
gold
(Au
NPs),
highlighting
their
medical
applications
areas
like
antiviral
treatments
cancer
therapy.
Scientific Reports,
Journal Year:
2023,
Volume and Issue:
13(1)
Published: Nov. 1, 2023
Abstract
The
green
methodologies
of
nanoparticles
with
plant
extracts
have
received
an
increase
interest.
Copper
oxide
(CuO
NPs)
been
utilized
in
a
many
applications
the
last
few
decades.
current
study
presents
synthesis
CuO
NPs
aqueous
extract
Morinda
citrifolia
as
stabilizing
agent.
leaf
was
mixed
solution
copper
sulphate
(CuSO
4
·5H
2
O)
and
sodium
hydroxide
catalyst.
UV–visible
spectroscopy,
FTIR,
XRD,
SEM,
TEM,
EDAX
analysis
were
performed
to
synthesized
NPs.
Particle
size
distribution
measured
dynamic
light
scattering.
highly
stable,
sphere-like,
particles
from
20
50
nm.
Furthermore,
as-formed
shown
strong
antibacterial
activity
against
Gram-positive
bacteria
(
Bacillus
subtilis,
Staphylococcus
aureus
),
Gram-negative
Escherichia
coli
).
revealed
similar
trend
analysed
for
antifungal
activity.
zone
inhibition
fungi
evaluated
Aspergillus
flavus
(13.0
±
1.1),
niger
(14.3
0.7),
Penicillium
frequentans
(16.8
1.4).
According
results
this
investigation,
may
be
used
biomedicine
replacement
agent
biological
applications.
Coatings,
Journal Year:
2023,
Volume and Issue:
13(8), P. 1411 - 1411
Published: Aug. 11, 2023
Nanotechnology
plays
a
crucial
role
in
food
preservation,
offering
innovative
solutions
for
monitoring
and
enabling
the
creation
of
packaging
with
unique
functional
properties.
The
nanomaterials
used
can
extend
shelf
life
foods,
enhance
safety,
keep
consumers
informed
about
contamination
or
spoilage,
repair
damage,
even
release
preservatives
to
prolong
durability
items.
Therefore,
this
review
aims
provide
an
overview
diverse
applications
nanotechnology
packaging,
highlighting
its
key
advantages.
Safety
considerations
regulations
related
are
also
addressed,
along
evaluation
potential
risks
human
health
environment,
emphasizing
that
field
faces
challenges
terms
safety
regulations.
Additionally,
development
nanotechnology-based
drive
advancements
preservation
by
creating
safer,
more
sustainable,
higher-quality
packaging.
Thus,
offers
efficiency
functionality
delivering
substantial
benefits
both
manufacturers
consumers.
Scientific Reports,
Journal Year:
2024,
Volume and Issue:
14(1)
Published: Jan. 23, 2024
Abstract
The
green
synthesis
method
which
is
aligned
with
the
sustainable
development
goals
(SDGs)
theory,
proposed
to
synthesize
ZnO
nanoparticles
using
ginger
extract
treat
acidic
wastewater
and
factory
effluent
as
a
current
challenge
effects
of
concentration
extracts
on
synthesized
nanostructures
are
investigated.
results
declare
that
single-phase
hexagonal
formed
less
than
25
mL
crystallite
size
NPs
increased
increasing
extract.
Also,
significant
morphology
(nanocone,
nanoflakes,
flower-like)
particle
demonstrated.
low
leads
formation
while
flower-like
structure
gradually
completed
by
Furthermore,
changes
in
specific
surface
area
(SSA)
samples
observed
(in
range
6.1–27.7
m
2
/g)
variation
best
SSA
related
10
strong
effect
reflectance
spectra
NPs,
especially
UV
region
proved.
indirect
(direct)
band
gap
energies
obtained
3.09–3.20
eV
(3.32–3.38
eV).
photocatalytic
activities
for
degradation
methylene
blue
indicate
impressive
efficiency
it
reaches
up
44%
83%
prepared
5
pH
4.3
5.6,
respectively.
This
study
provided
new
insights
into
fabrication
practical
application
high-performance
photocatalysts
degrading
organic
pollutants
an
solution.
