Discover Nano,
Journal Year:
2024,
Volume and Issue:
19(1)
Published: Oct. 2, 2024
Biologically
produced
silver
nanoparticles
are
becoming
a
more
appealing
option
than
chemically
antioxidants
and
antimicrobial
agents,
because
they
safer,
easier
to
manufacture
have
medicinal
properties
at
lower
concentrations.
In
this
work,
we
employed
the
aqueous
pomegranate
peel
extract
(PPE)
synthesize
(PPE-AgNPs),
as
is
rich
source
of
phytochemicals
which
functions
reducing
agent
for
synthesis
PPE-AgNPs.
Additionally,
PPE
was
examined
quantitatively
total
phenolics
flavonoids
content.
PPE-AgNPs
were
characterized
using
analytical
techniques
including
UV-Vis
spectroscopy,
DLS,
FTIR,
XRD,
HRTEM
FESEM,
evaluated
in
vitro
against
plant
pathogenic
microbes
also
antioxidant
activities.
Analytical
(HRTEM
FESEM)
confirmed
spherical
shape
XRD
technique
revealed
crystalline
nature
synthesized
Quantitative
analysis
presence
(269.93
±
1.01
mg
GAE/g)
(119.70
0.83
CE/g).
Biosynthesized
exhibited
significant
antibacterial
activity
Klebsiella
aerogenes
Xanthomonas
axonopodis,
antifungal
Colletotrichum
graminicola
gloesporioides
50
µg/mL
concentration.
The
potential
biosynthesized
analysed
via
ABTS
(IC
Nanomaterials,
Journal Year:
2025,
Volume and Issue:
15(4), P. 252 - 252
Published: Feb. 7, 2025
Nanotechnology
is
an
evolving
field
that
presents
extensive
opportunities
in
antimicrobial
and
eco-friendly
food
packaging
applications.
Silver
nanoparticles
(AgNPs)
are
particularly
valuable
this
context
due
to
their
outstanding
physicochemical
properties
demonstrated
biological
efficacy,
rendering
them
highly
effective
Historically,
nanoparticle
synthesis
has
largely
relied
on
synthetic
chemicals
physical
methods;
however,
growing
awareness
of
potential
toxic
impacts
human
health
the
environment
led
researchers
reassess
these
conventional
approaches.
In
response,
green
using
plants
or
metabolites
produce
(NPs)
emerged
as
a
focal
point
recent
research.
This
approach
provides
significant
advantages,
notably
reducing
toxicity
associated
with
traditionally
synthesized
nanoparticles.
Silver,
recognized
for
its
non-toxic,
safe
profile
inorganic
antibacterial
antifungal
agent,
been
employed
centuries
exhibits
remarkable
various
applications
form.
Environmentally
friendly
techniques
increasingly
prioritized
within
chemical
sciences
reduce
harmful
byproducts
reactions.
Green
methods
also
offer
economic
benefits
lower
costs
abundant
availability
natural
raw
materials.
past
five
years,
concerted
efforts
have
made
develop
new,
sustainable,
cost-effective
methodologies
synthesis.
review
explains
silver
from
different
sources
along
quantification
application
packaging.
Natural Product Research,
Journal Year:
2025,
Volume and Issue:
unknown, P. 1 - 8
Published: Feb. 27, 2025
This
research
explored
silver
nanoparticles
(AgNPs)
from
Desmodium
podocarpum
rhizome
using
the
green
approach
and
their
possible
antibacterial,
phytotoxic,
haemolytic
activities.
The
change
in
colour
transparent
to
light
brown
finally
colloidal
indicates
synthesis
of
nanoparticles.
synthesised
AgNPs
were
analysed
by
UV-Vis
spectrophotometer,
scanning
electron
microscopy,
transmission
X-ray
diffraction,
Fourier
transform
infra-red
spectroscopy
energy
dispersive
X-ray.
analysis
successful
reduction
Ag+2
ions
Ago
with
spherical
particle
size
16-55
nm.
prepared
inhibit
growth
Escherichia
coli,
Salmonella
typhi,
Staphylococcus
aureus
Pseudomonas
aeruginosa.
It
showed
70%
phytotoxic
potential
12%
haemolysis
at
high
concentrations.
Altogether,
these
results
strongly
suggest
that
D.
podocarpum-mediated
could
be
used
eco-friendly
limit
microbial
without
any
significant
cytotoxic
effect
on
human
cells.
Molecules,
Journal Year:
2025,
Volume and Issue:
30(6), P. 1369 - 1369
Published: March 18, 2025
This
study
explores
the
potential
of
silver
nanoparticles
(AgNPs)
synthesized
through
an
eco-friendly
method
using
coffee
extract
to
combat
non-bacterial
mastitis
in
dairy
cattle.
Mastitis,
often
caused
by
pathogens
such
as
yeasts
and
algae
like
Prototheca
spp.,
poses
a
challenge
due
limited
efficacy
traditional
antibiotics.
research
utilized
strains
isolated
from
milk
assessed
nanoparticles’
physicochemical
properties,
antimicrobial
efficacy,
impact
on
biofilm
formation
microorganism
invasion.
AgNPs
demonstrated
spherical
shape
with
mean
hydrodynamic
diameter
~87
nm
moderate
colloidal
stability.
Antimicrobial
tests
revealed
significant
growth
inhibition
yeast
minimal
inhibitory
concentrations
(MICs)
low
10
mg/L
for
certain
strains.
Biofilm
was
notably
disrupted,
invasion
bioprinted
gels
significantly
reduced,
indicating
broad-spectrum
AgNPs.
The
highlights
ability
damage
cell
membranes
inhibit
metabolic
activities,
presenting
promising
alternative
managing
infections
resistant
conventional
treatments.
These
findings
suggest
that
green-synthesized
could
play
pivotal
role
developing
sustainable
solutions
treatment,
particularly
treatment
options.
