Nanomaterials,
Journal Year:
2024,
Volume and Issue:
14(7), P. 638 - 638
Published: April 6, 2024
Zinc
oxide
nanoparticles
(ZnO
NPs)
have
been
investigated
due
to
their
distinct
properties,
variety
of
structures
and
sizes,
mainly
for
antimicrobial
activity.
They
received
a
positive
safety
evaluation
from
the
European
Food
Safety
Authority
(EFSA)
packaging
applications
as
transparent
ultraviolet
(UV)
light
absorbers
based
on
absence
significant
migration
zinc
in
particulate
form.
ZnO
NPs
with
different
morphologies
(spherical,
flower,
sheet)
synthesized
via
sol–gel
methods
extensively
characterized
by
several
solid-state
techniques,
namely
vibrational
spectroscopy,
powder
X-ray
diffraction
(XRD),
scanning
electron
microscopy/energy
dispersive
spectroscopy
(SEM/EDS),
Fourier
Transform
Infrared
Spectroscopy
(FTIR),
ultraviolet–visible
(UV-VIS),
paramagnetic
resonance
(EPR),
nitrogen
adsorption–desorption
isotherms.
The
were
assessed
antibacterial
activity
against
Escherichia
coli
(gram-negative
bacteria)
Staphylococcus
aureus
(gram-positive
study
influence
morphology
size
efficacy.
sizes
demonstrated
both
bacteria.
highest
microbial
cell
reduction
rate
(7–8
log
CFU
mL−1
E.
6–7
S.
aureus)
was
obtained
sheet-
spherical-shaped
result
high
specific
surface
area.
In
fact,
higher
areas
(18.5
13.4
m2
g−1,
respectively),
compared
flower-shaped
(5.3
m2g−1),
seem
promote
more
efficient
bacterial
reduction.
particles
also
smaller
(31
nm)
(233
×
249
ones.
flower
NP
resulted
4–5
3–4
aureus.
lower
apparent
could
be
associated
either
lack
defects
particle
core
or
shape
shielding
effect.
Compared
aureus,
seems
less
resistant
NPs,
which
may
explained
characteristics
its
membrane.
With
simple
synthesis
do
not
allow
controlled
simultaneously,
it
is
challenge
elucidate
effect
each
these
two
parameters
performance.
Journal of Nanobiotechnology,
Journal Year:
2024,
Volume and Issue:
22(1)
Published: Jan. 5, 2024
Abstract
Periodontitis,
one
of
the
most
prevalent
dental
diseases,
causes
loss
bone
and
gum
tissue
that
hold
teeth
in
place.
Several
bacteria,
commonly
present
clinically
healthy
oral
cavities,
may
induce
perpetuate
periodontitis
when
their
concentration
rises
gingival
sulcus.
Antibacterial
effect
against
various
Gram-negative
Gram-positive
including
pathogenic
drug-resistant
ones,
has
been
shown
for
several
distinct
transient
metal
oxide
NPs.
Therefore,
NPs
be
used
biomedicine
to
treat
periodontal
problems
nanotechnology
inhibit
development
microorganisms.
Instead
using
harmful
chemicals
or
energy-intensive
machinery,
biosynthesis
nanoparticles
(NPs)
suggested.
To
produce
NPs,
ideal
technique
is
“Green”
synthesis
because
its
low
toxicity
safety
human
health
environment.
Gold
(AuNPs)
appear
less
toxic
mammalian
cells
than
other
nanometals
antibacterial
activity
not
dependent
on
reactive
oxygen
species
(ROS).
AgNPs
also
possess
chemical
stability,
catalytic
activity,
superior
electrical
thermal
conductivity,
name
a
few
advantageous
characteristics.
It
was
observed
zinc
(ZnO)
copper
(Cu)
exhibited
discernible
inhibitory
effects
gram-positive
gram-negative
bacterial
strains,
respectively.
ZnO
demonstrated
bactericidal
microorganisms
responsible
periodontitis.
Medications
containing
magnetic
are
highly
effective
multidrug-resistant
fungal
infections.
The
titanium
dioxide
(TiO
2
)
implicated
elevating
salivary
peroxidase
individuals
diagnosed
with
chronic
Furthermore,
specific
metallic
have
potential
enhance
antimicrobial
efficacy
treatments
combined.
these
as
well
only
some
metals
oxides
synthesized
environmentally
friendly
ways
therapeutic
benefits
Graphical
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.
Journal of Hazardous Materials Advances,
Journal Year:
2024,
Volume and Issue:
13, P. 100401 - 100401
Published: Jan. 13, 2024
Bio-synthesized
metal
oxide
(MeO)
nanoparticles
(NPs)
have
triggered
a
huge
global
research
interest
owing
to
their
advancement
and
various
environmental
remediation,
personal
care
products,
medical,
energy,
sensing,
water
treatment
applications.
They
demonstrate
developing
assets
in
industries,
remarkably
with
heightened
physicochemical,
optical,
mechanical,
electronic
attributes.
The
physical
chemical
routes
been
sticking
point
the
production
of
MeO
NPs,
natural
risks
linked
utilizing
these
approaches.
growth
NPs
via
biologic
method
employing
plants
microorganisms
as
precursor
material
for
metal-ions
(MIs)
reduction
stabilization
has
focus
scientists
recent
years.
Hence,
this
review,
comprehensive
brief
bio-synthesis
approaches
using
plant
extracts
(PEs)
microorganism
components
well
factors
affecting
bio-production
applications
toxicity
were
considered.
Molecules,
Journal Year:
2023,
Volume and Issue:
28(24), P. 8125 - 8125
Published: Dec. 15, 2023
Selenium
nanoparticles
(SeNPs)
are
extremely
popular
objects
in
nanotechnology.
"Green"
synthesis
has
special
advantages
due
to
the
growing
necessity
for
environmentally
friendly,
non-toxic,
and
low-cost
methods.
This
review
considers
biosynthesis
mechanism
of
bacteria,
fungi,
algae,
plants,
including
role
various
biological
substances
processes
reducing
selenium
compounds
SeNPs
their
further
packaging.
Modern
information
approaches
possible
biomedical
use
presented:
antimicrobial,
antiviral,
anticancer,
antioxidant,
anti-inflammatory,
other
properties,
as
well
mechanisms
these
processes,
that
have
important
potential
therapeutic
value.
Applied Surface Science Advances,
Journal Year:
2024,
Volume and Issue:
21, P. 100605 - 100605
Published: April 30, 2024
The
article
discusses
the
function
of
green
nanoparticles
in
preventing
corrosion
different
alloys
such
as
copper,
zinc,
steel,
and
aluminium
alloys.
Green
are
characterized
by
their
environmentally
friendly
sustainable
production
methods,
which
emphasize
using
natural
materials.
Environmental
issues
have
long
been
linked
to
traditional
inhibitors,
has
led
a
shift
towards
more
alternatives.
A
potential
remedy
for
these
is
use
nanoparticles,
derived
from
renewable
biodegradable
resources.
support
sustainability
goals
strong
inhibition
properties.
Their
combined
role
makes
them
essential
players
future
where
environmental
awareness
material
safety
coexist.
review
envisages
significant
paradigm
critical
industrial
contexts,
calls
robust
ecologically
approach
prevention.
can
potentially
transform
field
materials
protection
entirely,
investigation
inhibitors
opens
up
new
directions
study
development.
In
conclusion,
this
highlights
crucial
creating
creative
solutions
will
enhance
productivity
well-being.
Finally,
prospects
difficulties
sustainably
applying
also
explored.
Molecules,
Journal Year:
2025,
Volume and Issue:
30(3), P. 684 - 684
Published: Feb. 4, 2025
The
fundamental
principle
of
Fourier
Transform
Infrared
(FTIR)
spectroscopy
is
based
on
the
vibration
and
rotation
atoms,
it
has
become
a
universal
widely
used
spectral
methodology
for
detection
internal
molecular
structures
in
diverse
range
fields.
A
considerable
number
review
articles
pertaining
to
applications
FTIR
have
been
published
recent
years.
Nevertheless,
comprehensive
summary
application
nanoparticles’
(NPs’)
green
synthesis
yet
be
presented.
In
present
paper,
we
propose
series
case
studies
that
demonstrate
analysis
metal
oxide
NPs
synthesized
using
processes.
Furthermore,
presented
position
functional
group
bands
spectra
are
responsible
reduction,
capping
stabilization
NPs.
this
review,
explore
advantages
limitations
methodologies
overcoming
these
challenges.
We
also
potential
solutions
complex
spectra.
intended
serve
as
compendium
information
researchers
engaged
field
NPs,
utilizing
research
tool.
