Journal of King Saud University - Science,
Journal Year:
2023,
Volume and Issue:
36(3), P. 103080 - 103080
Published: Dec. 27, 2023
The
present
study
reports
a
cost-effective,
eco-friendly,
and
straightforward
approach
to
synthesize
Zinc
Oxide
Nanoparticles
(ZnO
NPs)
using
agro-waste
banana
(Musa
acuminata)
leaves
compares
it
with
chemogenic
ZnO
NP.
investigated
biogenic
NPs,
examining
their
size,
shape,
morphological
structure,
stability
UV-Vis
Spectroscopy,
X-Ray
Diffraction
(XRD),
Field
Transmission
Scanning
Electron
Microscopy
(FESEM),
Energy
Dispersive
(EDX),
Fourier
Transform
Infrared
Spectroscopy
(FTIR).
Antibacterial
potency
against
Staphylococcus
aureus
Salmonella
typhimurium
was
tested
through
the
Disk
Diffusion
method.
Bio-nanocomposites
were
created
by
incorporating
different
NP
concentrations
into
chitosan
via
solvent
casting
Film
characteristics
analyzed
SEM,
tensile
strength,
film
moisture
(FM),
solubility
(FS),
water-holding
capacity
(WHC).
activity
of
bio-nanocomposites
assessed
Viable
Cell
Colony
Count
results
color
change
confirmed
formation
having
sharp
peaks
at
370nm
381nm
respectively
spherical
structure
an
average
crystalline
size
36.73nm
75.31nm.
had
greater
inhibitory
action
both
than
Besides,
biofilms
enhanced
followed
biofilms.
suggests
green
approach,
smaller
nanosized
NPs
unique
advantages
over
counterparts.
resulting
exhibit
potential
enhance
food
quality,
safety,
longevity
in
industry.
This
aligns
circular
economy
principles,
utilizing
waste
for
raw
material
synthesis
promoting
manufacturing
innovation.
Chemosphere,
Journal Year:
2023,
Volume and Issue:
327, P. 138497 - 138497
Published: March 29, 2023
In
nanoscience
and
nanobiotechnology,
using
plant
extracts
in
synthesizing
metal
nanoparticles
(NPs)
has
recently
come
to
light
as
an
exciting
opportunity
with
several
benefits
over
traditional
physicochemical
methods.
the
present
work,
zinc
oxide
(ZnO)
based
were
synthesized
by
green
chemistry
route
lychee
peel
extract
capture
hazardous
congo
red
dye
from
wastewater
illustrate
their
antimicrobial
behavior.
The
X-Ray
Diffraction
(XRD)
spectra
confirm
wurtzite
crystal
structure,
Fourier
Transform
Infrared
(FTIR)
functional
group
ZnO,
which
is
suitable
for
adsorption.
It
was
found
that
NPs
spherical
had
a
size
of
<10
nm.
ZnO
could
effectively
remove
>98%
CR
within
120
min
contact
time
at
wide
pH
range
2
10.
primary
mechanism
involved
removing
electrostatic
interaction
between
adsorbent
dye.
performance
show
34%
inhibition
against
Bacillus
subtilis
(ATCC
6538),
52%
Escherichia
coli
11103),
58%
Pseudomonas
aeruginosa
25668)
32%
Staphylococcus
aureus
25923)
well
diffusion
assay.
demonstrates
anti-bacterial
property
both
gram-positive
gram-negative
pathogenic
bacteria.
Overall,
method
developing
shows
promising
significant
highly
potential
wastewater.
Results in Chemistry,
Journal Year:
2024,
Volume and Issue:
7, P. 101368 - 101368
Published: Jan. 1, 2024
Zinc
oxide
nanoparticles
(ZnO
NPs)
exhibit
distinctive
characteristics,
making
them
highly
sought-after
in
many
sectors.
Nevertheless,
conventional
techniques
for
producing
ZnO-NPs
are
linked
to
environmental
and
health
hazards
due
toxic
substances.
In
this
review,
we
study
zinc
synthesized
from
plant
extracts
their
subsequent
biomedical
uses
detail.
Research
shows
that
several
different
employed
manufacturing
ZnO
nanoparticles.
Leaves,
fruits,
seeds,
roots,
complete
plants
all
included
these
extracts.
Phytochemicals
such
as
phenolic
compounds,
alkaloids,
flavonoids,
terpenoids
a
part
of
biological
matrices.
compounds
show
bioreduction
mechanism,
act
stabilizing
reducing
agent.
The
attributes
(NPs),
including
size,
shape,
crystallinity,
may
be
altered
by
adjusting
the
extract
variety,
concentration,
synthesis
conditions.
Consequently,
formed
display
notable
diversity
physical
chemical
subsequently
impacting
functionality.
manufactured
using
green
methods
extensive,
beneficial
effects
antibacterial
activity
against
various
pathogens,
anti-inflammatory
possible
anticancer
activities.
Nanoparticles
have
been
integrated
into
wound
dressings,
used
carriers
medication
delivery,
utilized
biosensing
imaging
applications.
enhanced
biocompatibility
reduced
toxicity
green-processed
techniques,
comparison
those
made
approaches,
make
very
appealing
use
contexts.
Moreover,
paper
examines
mechanisms,
explicitly
focusing
on
involvement
phytochemicals
processes
reduction
stabilization.
Additionally,
emphasizes
difficulties
potential
future
directions
optimizing
processes,
increasing
capacity,
facilitating
therapeutic
Heliyon,
Journal Year:
2024,
Volume and Issue:
10(2), P. e24467 - e24467
Published: Jan. 1, 2024
Mitigating
climate
change
can
be
achieved
by
opting
for
sustainable,
plant-based
materials
instead
of
relying
on
hazardous
chemicals
that
come
with
various
side
effects.
Various
natural
plant
extracts
find
widespread
application
in
synthesizing
insect-repellent
coatings,
particularly
industries
such
as
paint
manufacturing.
The
increasing
demand
these
coatings
has
led
us
to
out
the
effects
different
efficient
preparation
paints
more
advanced
impacts
and
low
cost.
For
this
purpose,
zinc
nanoparticles
Eucalyptus
globulus
L.
its
were
used
study
due
their
remarkable
biocidal
antimicrobial
activities.
extract
was
prepared
process
oven-drying
heating
followed
filtration.
Then,
they
subjected
phytochemical
tests
performed
which
material
did
not
contain
flavonoids
glycol.
comparison
size
visible
during
weighing
found
4.451
mg.
Advanced
characterization
techniques
like
FTIR,
UV
spectroscopy,
particle
analysis
adopted
extract.
FTIR
reported
lie
range
1000–1800
cm−1.
On
other
hand,
results
spectroscopy
showed
absorption
peaks
around
300
nm.
produced
integrated
into
formulations
impart
antibacterial
characteristics.
Painted
panels
exhibited
notable
efficacy,
presenting
an
inhibition
zone
0.7
cm
Escherichia
coli
0.3
Staphylococcus
aureus
when
utilizing
biocide.
Plant
yielded
zones
1
1.2,
while
aqueous
resulted
0.2
0.5,
respectively.
A
thorough
evaluation
paint's
color
attributes,
including
ΔL,
Δa,
Δb,
ΔE,
indicated
noteworthy
differences.
CMC
ΔE
values
from
trials
exceeded
1,
indicating
a
substantial
shade.
batches
containing
E.
lighter
specifically
green
yellow
colors.
Their
insect
repellant
activity
tested
using
mosquitos
Aedes
aegypti
age
4–5
weeks,
revealing
61
%
effective
period,
greater
than
7
observed
non-biocidal
formulations.
responded
best
towards
mosquitoes
terms
repellency
ultimate
target
achieved.
Toxics,
Journal Year:
2023,
Volume and Issue:
11(5), P. 452 - 452
Published: May 10, 2023
The
usefulness
of
nanoparticles
(NPs)
in
biological
applications,
such
as
nanomedicine,
is
becoming
more
widely
acknowledged.
Zinc
oxide
(ZnO-NPs)
are
a
type
metal
nanoparticle
with
an
extensive
use
biomedicine.
Here,
ZnO-NPs
were
synthesized
using
Cassia
siamea
(L.)
leaf
extract
and
characterized
state-of-the-art
techniques;
UV-vis
spectroscopy,
XRD,
FTIR,
SEM.
At
sub-minimum
inhibitory
concentration
(MIC)
levels,
the
ability
ZnO@Cs-NPs
to
suppress
quorum-mediated
virulence
factors
biofilm
formation
against
clinical
MDR
isolates
(Pseudomonas
aeruginosa
PAO1
Chromobacterium
violaceum
MCC-2290)
was
tested.
½MIC
reduced
violacein
production
by
C.
violaceum.
Furthermore,
sub-MIC
significantly
inhibited
aspyoverdin,
pyocyanin,
elastase,
exoprotease,
rhamnolipid,
swimming
motility
P.
76.9,
49.0,
71.1,
53.3,
89.5,
60%,
respectively.
Moreover,
also
showed
wide
anti-biofilm
efficacy,
inhibiting
maximum
67
56%
biofilms
violaceum,
In
addition,
suppressed
extra
polymeric
substances
(EPS)
produced
isolates.
Additionally,
under
confocal
microscopy,
propidium
iodide-stained
cells
show
ZnO@Cs-NP-induced
impairment
membrane
permeability,
revealing
strong
anti-bacterial
efficacy.
This
research
demonstrates
that
newly
demonstrate
efficacy
nutshell,
can
be
used
alternative
therapeutic
agent
for
managing
pathogenic
infections.
Polymers,
Journal Year:
2023,
Volume and Issue:
15(20), P. 4103 - 4103
Published: Oct. 16, 2023
Changes
in
consumer
lifestyles
have
raised
awareness
of
a
variety
food
options
and
packaging
technologies.
Active
smart
is
an
innovative
technology
that
serves
to
enhance
the
safety
quality
products
like
fruit,
vegetables,
fish,
meat.
Smart
packaging,
as
subset
this
technology,
entails
integration
additives
into
materials,
thereby
facilitating
preservation
or
extension
product
shelf
life.
This
technological
approach
stimulates
heightened
demand
for
safer
with
prolonged
predominantly
relies
on
utilization
natural
active
substances.
Therefore,
combination
substances
has
significant
impact
characteristics
particularly
polymeric
blends
polylactic
acid
(PLA)
matrix.
review
will
summarize
how
addition
agents
influences
performance
through
systematic
analysis,
providing
new
insights
types
physical–mechanical
properties,
colony
reduction,
its
application
foods.
Through
their
integration,
market
systems
expected
bright
future.
Heliyon,
Journal Year:
2024,
Volume and Issue:
10(11), P. e31316 - e31316
Published: May 15, 2024
Zinc
oxide
nanoparticles
(ZnO
NPs)
have
become
a
highly
regarded
substance
in
various
industries
especially
biologically
synthesized
ZnO
NPs
due
to
their
adherence
the
principles
of
green
chemistry.
However,
concerns
been
raised
regarding
potential
cytotoxic
effects
on
biological
systems.
This
study
aimed
investigate
and
compare
cytotoxicity
that
were
through
chemical
(C-ZnO
approach
using
Musa
acuminata
leaf
aqueous
extract
(Ma-ZnO
Vero
cells.Characterization
Uv-Vis,
FESEM,
EDX,
XRD,
FTIR
XPS
confirmed
successful
synthesis
C-
Ma-ZnO
NPs.
MTT
ROS
assays
revealed
induced
concentration-
time-dependent
effect
cells.
Remarkably,
showed
significantly
higher
cell
viability
compared
C-ZnO
The
corelation
vell
suggest
elevated
levels
can
lead
damage
even
death.
Flow
cytometry
analysis
indicated
exposed
cells
had
more
viable
smaller
population
late
early
apoptotic
stage.
Furthermore,
arrested
G1
phase
upon
exposure
NPs,
which
is
associated
with
oxidative
stress
DNA
caused
by
generation,
proving
its
than
Similarly,
morphological
alterations
observed
treated
cells,
indicating
cellular
damage.
fluorescence
microscopy
also
demonstrated
increase
formation
NPs.In
conclusion,
findings
possess
favourable
biocompatibility
profile,
exhibiting
reduced
chemically
These
results
emphasize
methods
for
development
safer
environmentally
friendly