E3S Web of Conferences,
Год журнала:
2024,
Номер
588, С. 01010 - 01010
Опубликована: Янв. 1, 2024
The
environmentally
friendly
manufacturing
of
silver
nanoparticles
(AgNPs)
using
plant-based
extracts
has
received
immense
interest.
This
study
synthesized
AgNPs
from
aloe
vera,
green
tea,
ginger,
neem,
and
lemon
examined
how
varied
synthesis
circumstances
affected
nanoparticle
characteristics.
was
performed
at
50–70°C,
pH
6.5–
9,
with
precursor
concentrations
0.5–2
mM.
Results
showed
that
higher
increased
size
by
15%.
plant
extract,
temperature,
the
nanoparticles’
morphology,
which
ranged
spherical
to
rod-like
irregular.
In
antibacterial
experiments,
generated
turmeric
extract
were
25%
more
effective
against
*
E.
coli
S.
aureus
bacteria
than
those
made
vera
extract.
methylene
blue
Congo
red
dye
degradation
studies,
tea
extract-generated
had
10%
greater
catalytic
activity
extract-derived
ones.
comprehensive
shows
green-synthesized
may
be
customized
utilizing
eco-friendly
methods,
making
them
promising
for
nanotechnology,
biomedicine,
catalysis,
environmental
research.
ACS Omega,
Год журнала:
2024,
Номер
9(10), С. 11443 - 11452
Опубликована: Фев. 27, 2024
Green
synthesis
of
nanoparticles
using
plant
extract
is
a
novel
development
that
has
gained
significant
attention
because
its
low
cost,
nontoxicity,
and
environmental
friendliness.
In
the
present
study,
silver-doped
stannic
oxide
(Ag-doped
SnO2)
nanoparticle
was
synthesized
by
an
eco-friendly
green
method.
The
samples
were
characterized
scanning
electron
microscopy
(SEM),
Fourier
transform
infrared
spectroscopy
(FTIR),
ultraviolet–visible
(UV–vis),
X-ray
diffraction
(XRD),
their
antimicrobial
activities
assessed
against
two
bacteria
Escherichia
coli
(E.
coli)
Staphylococcus
aureus
(S.
aurus)
fungi
Fusarium
oxysporum
(F.
oxysporum)
graminearum
graminearum)
disk
diffusion
Ag-doped
SnO2
show
strong
broad
absorption
from
UV–vis
spectra
when
compared
to
pure
nanoparticles.
FTIR
spectral
analysis
revealed
peak
at
505.69
cm–1
assigned
Sn–O
O–Sn–O
stretching
vibration
XRD
confirmed
formation
tetragonal
rutile
structure
with
average
particle
size
ranging
10
17
nm.
result
indicates
activity
both
bacterial
strains
zone
inhibition
29
±
0.54,
27
0.05,
15
0.05
mm
for
S.
aureus,
E.
coli,
F.
,
graminearum,
respectively.
Thus,
studies
suggested
exhibit
good
Gram-negative
Gram-positive
fungi.
This
doping
metallic
elements
such
as
Ag
been
used
enhance
performance,
confirming
them
candidate
agents
future
therapeutic
Abstract
The
continuous
evolution
and
significance
of
green
resources-based
nanomaterials
have
spurred
the
exploration
sustainable
sources
for
nanoparticle
production.
Green
synthesis
routes
offer
eco-friendly
methodologies,
ensuring
stability
monodispersity,
enhancing
their
efficiency
various
applications.
Notably,
thick
biological
corona
layer
surrounding
nanoparticles
(NPs)
synthesized
through
contributes
to
unique
properties.
Consequently,
there
has
been
a
surge
in
development
NPs
methods
utilizing
medicinal
plants
diverse
agricultural
waste
resources.
This
study
highlights
potential
barley
grains
gold
(Barley-AuNPs)
silver
(Barley-AgNPs)
as
an
environmentally
friendly
alternative,
followed
by
characterizations
application
against
pathogenic
bacteria:
Escherichia
coli
UTI
89
Pseudomonas
aeruginosa
PAO1.
rapid
Barley-AuNPs
within
20
min
Barley-AgNPs
30
at
90
°C
underscores
precursor.
Characterization
advanced
techniques,
including
SEM,
TEM,
EDS,
AFM,
DLS,
FT-IR,
MALDI-TOF,
sp-ICPMS,
reveals
20–25
nm
size
Barley-AuNPs,
while
demonstrate
2–10
with
spherical
monodispersity.
A
notable
contribution
lies
these
over
extended
periods,
attributed
layer.
layer,
which
enhances
stability,
also
influences
antimicrobial
activity
Barley-AgNPs,
presenting
intriguing
trade-off.
investigations
highlight
significant
distinct
minimum
bactericidal
concentrations
(MBC)
P.
E.
8
µg/mL.
Overall,
this
research
pioneers
use
unveils
nanoparticles'
characteristics
antibacterial
applications,
contributing
evolving
landscape
nanotechnology.
Graphic
International Journal of Modern Physics B,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 13, 2025
The
gold
nanoparticles
(Au
NPs)
are
always
recognized
as
vital
and
important
for
human
life
from
the
ancient
era.
But
it
is
very
difficult
to
synthesize
Au
NPs
in
oxidizing
atmosphere
intended
purpose.
innovative
flame
reduction
method
utilizing
N,
N-Dimethylformamide
(DMF)
a
solvent
was
successfully
used
synthesis
of
precious
metal
NPs.
synthesized
bare,
so
they
can
be
directly
without
any
further
processing
catalyst
materials.
were
by
burning
their
salt
DMF
fuel
using
simple
lamp.
prepared
found
readily
dispersible
water
giving
stable
sols.
In
this
paper,
we
report
bare
first
time.
collected
on
glass
surface
routine
characterization
techniques
viz.,
UV-Visible,
XRD,
HR-TEM
electron
diffraction.
15[Formula:
see
text]nm
size
showed
characteristic
absorption
peak
at
550[Formula:
text]nm.
peaks
observed
XRD
demonstrated
cubic
phase
formation
mechanism
open-air
has
been
discussed
detail
paper.
Scientific Reports,
Год журнала:
2025,
Номер
15(1)
Опубликована: Фев. 22, 2025
Achieving
sustainable
practices
in
the
jewelry
industry
necessitates
adoption
of
optimized
eco-design
approaches.
The
optimization
eco-friendly
design
was
investigated
this
study
through
an
integrated
analysis
materials,
digital
manufacturing,
and
predictive
modeling.
Sustainable
techniques
were
identified,
artificial
neural
network
(ANN)
model
developed
to
predict
environmental
impacts
based
on
material
properties
attributes.
applicability
validated,
insights
generated
drive
eco-innovation
facilitate
transition
towards
industry.
Key
findings
demonstrated
superior
sustainability
renewable
biomaterials,
specifically
Biomaterials
2-5
derived
from
lingo-cellulosic
sources,
compared
conventional
materials.
Consistently,
simpler
configurations
outperformed
intricate
designs.
relationships
effectively
captured
by
ANN
model,
providing
a
reliable
evidence-based
approach.
Quantitative
linkages
between
attributes
metrics
established
study,
offering
valuable
guidance
for
strategies.
Significant
results
demonstrate
that
exhibit
average
carbon
footprints
1.1–1.2
kg
water
usage
9–16.5
L,
2.1
24.5
L
precious
metals.
Simplified
designs
0.8
11.5
whereas
show
3.1
33
L.
These
predictions
establish
biomaterials
streamlined
as
preferable
paradigms
jewelry.
Based
findings,
recommendations
include
prioritizing
use
implementation
incentives.
Transitioning
operations
biomaterial-focused
infrastructure
emerging
technologies
is
suggested
further
enhance
sustainability.
Additionally,
international
cooperation
development
standards
are
proposed
address
challenges
holistically.
empirical
computational
methodologies
can
inspire
transformative
