Green Processing and Synthesis,
Journal Year:
2024,
Volume and Issue:
13(1)
Published: Jan. 1, 2024
Abstract
In
this
work,
iron
oxide
nanoparticles
(IONPs)
were
synthesized
using
green
methods.
The
structural
morphological
and
optical
properties
of
(NPs)
investigated
by
scanning
electron
microscopy
(SEM),
X-ray
diffraction
(XRD),
ultraviolet–visible
spectroscopy,
Fourier
transform
infrared
spectroscopy.
Based
on
the
SEM
analysis,
spherical
NPs
with
a
size
distribution
in
range
50–70
nm
simulated
slight
variations
shapes,
corresponding
XRD
was
calculated.
calculated
patterns
then
averaged.
Well-defined
crystalline
structure
single-phase
spinel
shape
IONPs
observed.
vitro
vivo
biological
activities
hydroalcoholic
extract
Euphorbia
milii
’s
aerial
parts
studied.
antibacterial
effects
evaluated
against
Staphylococcus
aureus
,
enzyme
inhibitory
E.
various
enzymes
assessed.
demonstrated
significant
activity
urease
(89.09%
inhibition),
α-glucosidase
(72.87%
carbonic
anhydrase
II
(87.09%
xanthine
oxidase
(85.09%
inhibition).
also
exhibited
considerable
inhibition
these
enzymes.
IC
50
values
for
urease,
α-glucosidase,
II,
26.09,
59.09,
0.18,
7.71
µg·mL
−1
respectively.
anticancer
crude
evaluated.
minimum
recorded
MDR
2780AD,
i.e.,
0.85
(extract)
0.54
(IONPs).
Both
tested
samples
found
to
be
(
p
<
0.001)
analgesic
anti-inflammatory.
contrast,
sedative
at
all
doses,
showed
0.01)
effect
higher
doses
only.
Discover Nano,
Journal Year:
2025,
Volume and Issue:
20(1)
Published: Feb. 13, 2025
Abstract
Biosynthesis
techniques
for
nanomaterials
have
advanced
significantly,
promoting
eco-friendly
synthesis
chemistry
as
a
sustainable
alternative
to
conventional
methods.
This
study
presents
novel
and
environmentally
friendly
approach
synthesizing
nanoparticulate
ZnO,
CuO,
ZnO/CuO
nanocomposites
using
aqueous
extracts
of
Pleurotus
ostreatus
spent
substrate,
is
reported.
The
structural,
optical,
morphological
properties
the
synthesized
NPs
were
analysed.
A
hexagonal
phase
ZnO
monoclinic
CuO
obtained
according
X-ray
diffraction
analysis.
reduction
in
peak
intensity
these
metal
oxides
was
observed
due
reduced
crystallinity.
absorption
spectra,
from
UV–vis
analysis,
showed
peaks
at
354,
365,
525
nm
NPs,
respectively.
An
anticancer
assay
conducted
human
embryonic
kidney
(HEK
293)
cervical
carcinoma
(HeLa)
cell
lines,
while
1,1-diphenyl-2-picrylhydrazyl
(DPPH)
used
antioxidant
evaluation.
higher
potency
with
IC
50
2.15,
2.16,
3.18
µg/mL,
respectively,
than
ascorbic
acid
(4.25
µg/mL).
indicates
that
nanoparticles
more
effective
capturing
DPPH
free
radicals.
Anticancer
assays
strong
cytotoxic
effects
all
nanoparticles,
exhibiting
highest
activity
(IC
:
1.94
μM
HEK
293
cells,
3.23
HeLa
cells),
surpassing
NPs.
Cell
viability
both
cells
decreased
nanoparticle
concentration
increased,
confirming
dose-dependent
cytotoxicity.
green
their
composite
potential
biomedical
applications.
Energy Science & Engineering,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 5, 2025
ABSTRACT
The
quest
for
sustainable
energy
solutions
has
driven
extensive
research
into
biodiesel
derived
from
renewable
sources
such
as
soybean
oil
and
algae.
This
study
aims
to
optimize
production
algae
using
transesterification
pyrolysis
processes.
Additionally,
it
evaluates
the
performance
emission
characteristics
of
these
biodiesels
in
conventional
low
heat
rejection
(LHR)
engines
enhance
understanding
processes
their
impact
on
engine
emissions.
Soybean
were
used
feedstocks
via
pyrolysis.
produced
biodiesels,
specifically
methyl
ester
(SBME),
(ALME),
pyrolytic
(SBPO),
tested
both
LHR
engines.
Performance
metrics
brake‐specific
fuel
consumption
(BSFC),
brake
thermal
efficiency
(BTE),
exhaust
gas
temperature
(EGT),
emissions
(CO,
HC,
NOx)
analyzed.
SBME20
blend
demonstrated
superior
with
lower
BSFC,
higher
BTE,
reduced
CO
HC
compared
ALME20
SBPO20
blends.
However,
NOx
due
increased
combustion
temperatures.
engine's
enhanced
environment
improved
efficiency,
particularly
SBME20,
which
exhibited
best
overall
profile.
concludes
that
is
most
efficient
environmentally
friendly
engines,
highlighting
potential
a
viable
feedstock
production.
Further
optimization
required
achieve
comparable
levels.
International Journal of Nanomedicine,
Journal Year:
2025,
Volume and Issue:
Volume 20, P. 2991 - 3005
Published: March 1, 2025
Introduction:
Silver
nanoparticles
(AgNPs)
have
gained
significant
attention
in
biomedical
applications.
Green
synthesis
methods
provide
an
eco-friendly
and
cost-effective
approach
to
AgNPs
production,
utilizing
plant
extracts
as
reducing
stabilizing
agents.
In
this
study,
were
synthesized
using
the
methanolic
extract
of
Operculina
turpethum
.
Methodology:
O.
extract,
their
formation
was
confirmed
through
various
analytical
techniques.
The
antibacterial
activity
both
crude
assessed
against
Staphylococcus
aureus.
Enzyme
inhibition
studies
conducted
for
urease,
α-glucosidase,
carbonic
anhydrase
II,
xanthine
oxidase.
Analgesic
sedative
activities
evaluated
standard
models.
Results:
exhibited
zone
14
mm
S.
aureus
,
greater
than
(12
mm)
but
lower
Linezolid
(25
mm).
revealed
strong
activity,
particularly
urease
(96.09%
inhibition,
IC
5o
=
25.65
±
0.97
μg/mL).
demonstrated
superior
analgesic
effects
(81.98%
at
10
mg/kg),
comparable
diclofenac
sodium
(86.02%).
Sedative
dose-dependent,
reaching
35.09%
mg/kg.
Discussion:
enhanced
suggests
improved
bioavailability
interaction
with
bacterial
membranes.
enzyme
inhibitory
potential
indicates
possible
therapeutic
role
enzyme-related
disorders.
pain
management
agents
neuropharmacology.
results
demonstrate
efficacy
green-synthesized
Conclusion:
antibacterial,
inhibitory,
analgesic,
properties
suggest
promising
Further
research
should
explore
mechanisms
vivo
safety
clinical
Keywords:
Ag
NPs,
studies,
activities,
Catalysts,
Journal Year:
2025,
Volume and Issue:
15(3), P. 275 - 275
Published: March 15, 2025
Landfill
leachate,
a
complex
wastewater
generated
from
municipal
solid
waste
(MSW)
landfills,
presents
significant
environmental
challenges
due
to
its
high
organic
content
and
toxic
pollutants.
This
study
proposes
sustainable
solution
by
employing
the
green
synthesis
of
copper
oxide
nanoparticles
(CuO
NPs)
using
durian
(Durio
zibethinus)
husk
extract,
which
serves
as
natural
reducing
stabilizing
agent.
approach
transforms
agricultural
into
valuable
resource
for
remediation.
The
was
carried
out
under
mild
conditions,
avoiding
harmful
chemicals
energy
consumption.
CuO
NPs
were
characterized
scanning
electron
microscopy
(SEM),
high-resolution
transmission
(HR-TEM),
X-ray
diffraction
(XRD),
energy-dispersive
spectroscopy
(EDX),
Fourier-transform
infrared
(FTIR),
UV-Vis
examine
their
morphology,
crystallinity,
purity,
optical
properties.
SEM
HR-TEM
analyses
revealed
mainly
spherical
with
an
average
size
35–50
nm
minimal
aggregation.
XRD
analysis
confirmed
presence
highly
crystalline
monoclinic
phase
CuO,
while
EDX
spectrum
showed
distinct
peaks
corresponding
(72%)
oxygen
(28%)
weight,
confirming
purity
material.
Preliminary
tests
demonstrated
photocatalytic
efficiency
NPs,
achieving
up
79%
reduction
in
chemical
demand
(COD)
landfill
leachate.
These
findings
underscore
potential
green-synthesized
applications,
offering
innovative,
method
treatment
supporting
advancement
management
practices.
Nanotechnology Reviews,
Journal Year:
2025,
Volume and Issue:
14(1)
Published: Jan. 1, 2025
Abstract
The
growing
global
demand
for
sustainable
and
cost-effective
methods
of
nanomaterial
production
has
driven
the
development
green
synthesis
techniques,
offering
a
safer
alternative
to
traditional,
hazardous
approaches.
Among
numerous
plants
utilized
this
purpose,
Garcinia
mangostana
L.
(mangosteen)
stands
out
due
its
high
content
bioactive
phytochemicals,
such
as
α-mangostin,
xanthones,
other
secondary
metabolites.
These
compounds
serve
natural
reducing,
capping,
stabilizing
agents
in
metal
oxide
nanoparticles
(NPs)
silver,
gold,
zinc
oxide.
In
contrast
traditional
approaches
reliant
on
toxic
chemicals
harsh
circumstances,
mangosteen
extracts
facilitate
NPs
moderate
conditions,
viable
strategy
nanotechnology.
This
review
article
offers
thorough
examination
processes
utilizing
from
mangosteen,
going
over
physicochemical
characteristics
resultant
their
uses,
antimicrobial
anticancer
properties,
antioxidant
therapy,
environmental
remediation.
It
is
highlighted
that
synthesized
have
potential
solve
health
issues.
However,
enable
wider
industrial
commercial
applications,
important
issues
including
scalability,
repeatability
NP
long-term
stability
need
be
addressed.
addition
providing
insights
into
creation
NPs,
study
critically
evaluates
existing
research
lays
groundwork
future
developments
Applied Organometallic Chemistry,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 8, 2024
ABSTRACT
Selenium
nanoparticles
(Se‐NPs)
were
produced
adopting
an
environmentally
benign
green
synthetic
approach
from
the
waste
biomaterial
obtained
apple
peel
extract
(APE).
The
NPs
characterized
through
UV–Visible
spectroscopy
(UV–Vis),
atomic
force
microscopy
(AFM),
Fourier‐transform
infrared
(FT‐IR),
X‐ray
diffraction
(XRD),
field
emission‐scanning
electron
(FE‐SEM),
and
transmission
(TEM).
spectra
exhibited
absorption
peak
λ
max
at
295
nm,
confirming
formation
of
Se‐NPs.
AFM
examination
revealed
roughness
distribution
nanoparticles,
FT‐IR
ascertained
surface‐contained
functional
groups
presence.
XRD
confirmed
crystalline
nature
sample,
FE‐SEM
validated
surface
morphology
size
range
52
to
84
nm.
TEM
demonstrated
spherical
shapes
Se‐NPs
with
a
face‐centered
cubic
crystal
nature,
whereas
analysis
showed
mean
70
minimum
inhibitory
concentration
(MIC)
500
μg
mL
−1
against
Candida
spp
.,
namely,
C.
albicans
,
guilliermondii
ciferrii
their
anti‐fungal
activity
in
control
minor
statistical
difference
(
p
<
0.05)
dissemination
zones
inhibition
for
treatment
these
fungi.
effects
on
MexA
gene
expression
efflux
pump
role
gene's
down
regulation
treated
fungal
strains.
multi‐drug
resistant
microbes.
