Functional Composites and Structures,
Год журнала:
2024,
Номер
6(1), С. 015005 - 015005
Опубликована: Фев. 22, 2024
Abstract
This
research
unveils
an
innovative
approach
to
green
synthesis,
detailed
characterization,
and
multifunctional
exploration
of
bio-functionalized
zinc
oxide
nanoparticles
(PN/ZnO
NPs)
adorned
with
phytochemicals
from
Piper
nigrum
(PN).
Employing
extensive
suite
spectroscopic
techniques
physicochemical
methods,
including
UV–vis
spectroscopy,
field
emission
scanning
electron
microscope
(FESEM),
high-resolution
transmission
(HRTEM),
energy
dispersive
x-ray
(EDX)
Fourier-transform
infrared
(FTIR),
diffraction
(XRD),
Brunauer–Emmett–Teller
(BET)
analysis,
the
study
delves
into
unique
properties
PN/ZnO
NPs.
XRD
confirms
development
wurtzite
phase
a
crystallite
diameter
47.77
nm.
FTIR
reveals
ZnO
functionalization
by
PN’s
phytochemicals,
while
FESEM
HRTEM
suggest
diverse
architectural
features.
Selected
area
patterns
authenticate
crystalline
structure.
BET
analysis
showcases
large
specific
surface
80.72
m
2
g
−1
mesoporous
The
absorption
peak
at
372
nm
band
gap
(
E
)
3.44
eV
validate
NP
formation.
catalytic
performance
is
demonstrated
through
degradation
commercial
reactive
yellow-17
(RY-17)
dye,
(dosage
300
mg
l
achieving
94.72%
removal
dose
120
.
Pseudo-first-order
kinetics
govern
photodegradation
process.
PN-ZnO
NPs
showcase
potent
antimicrobial
efficacy
against
both
gram-negative
gram-positive
bacteria,
varying
clearance
zones.
stands
as
impactful
exploration,
integrating
versatile
functionalities
Journal of Functional Biomaterials,
Год журнала:
2022,
Номер
13(4), С. 274 - 274
Опубликована: Дек. 5, 2022
In
the
last
few
years,
progress
made
in
field
of
nanotechnology
has
allowed
researchers
to
develop
and
synthesize
nanosized
materials
with
unique
physicochemical
characteristics,
suitable
for
various
biomedical
applications.
Amongst
these
nanomaterials,
metal
oxide
nanoparticles
(MONPs)
have
gained
increasing
interest
due
their
excellent
properties,
which
a
great
extent
differ
from
bulk
counterpart.
However,
despite
such
positive
advantages,
substantial
body
literature
reports
on
cytotoxic
effects,
are
directly
correlated
nanoparticles’
therefore,
better
control
over
synthetic
parameters
will
not
only
lead
favorable
surface
characteristics
but
may
also
increase
biocompatibility
consequently
lower
cytotoxicity.
Taking
into
consideration
enormous
potential
MONPs,
present
review
discuss
most
recent
developments
this
referring
mainly
synthesis
methods,
physical
chemical
characterization
biological
including
pro-regenerative
antitumor
potentials
as
well
antibacterial
activity.
Moreover,
section
tackle
pressing
issue
toxic
effects
MONPs
tissues/organs
cell
lines.
Abstract
This
study
marks
a
pioneering
effort
in
utilizing
Vachellia
tortilis
subsp.
raddiana
(Savi)
Kyal.
&
Boatwr.,
(commonly
known
as
acacia
)
leaves
both
reducing
and
stabilizing
agent
the
green
“eco-friendly”
synthesis
of
silver
nanoparticles
(AgNPs).
The
research
aimed
to
optimize
AgNPs
process
by
investigating
influence
pH,
temperature,
extract
volume,
contact
time
on
reaction
rate
resulting
AgNPs'
morphology
well
discuss
potential
detecting
some
heavy
metals.
Various
characterization
methods,
such
UV–vis
spectroscopy,
X-ray
diffraction
(XRD),
scanning
electron
microscopy
(SEM),
infrared
spectroscopy
(IR),
Zeta
sizer,
EDAX,
transmitting
(TEM),
were
used
thoroughly
analyze
properties
synthesized
AgNPs.
XRD
results
verified
successful
production
with
crystallite
size
between
20
30
nm.
SEM
TEM
analyses
revealed
that
are
primarily
spherical
rod-shaped,
sizes
ranging
from
8
41
Significantly,
was
notably
higher
basic
conditions
(pH
10)
at
70
°C.
These
underscore
effectiveness
source
for
sustainable
synthesis.
also
examined
ability
detect
various
metal
ions
colorimetrically,
including
Hg
2+
,
Cu
Pb
Co
.
UV–Vis
proved
useful
this
purpose.
color
shifts
brownish-yellow
pale
yellow,
colorless,
red,
reddish
yellow
when
ions,
respectively.
change
an
alteration
absorbance
band,
vanishing
shifting
423
352
nm,
438
429
nm
showed
high
sensitivity,
detection
limits
1.322
×
10
–5
M,
1.37
–7
1.63
1.34
–4
M
highlights
using
eco-friendly
their
environmental
sensors
metals,
showcasing
strong
capabilities
colorimetric
Sensors International,
Год журнала:
2024,
Номер
5, С. 100287 - 100287
Опубликована: Янв. 1, 2024
This
comprehensive
review
provides
an
in-depth
overview
of
the
green
(biological)
synthesis,
characterization,
and
biosensor
applications
metal
nanoparticles
(NPs).
Because
their
unique
physical
chemical
properties,
high
surface
area,
nanoscale
size,
NPs
have
become
crucial
in
various
fields.
The
emphasizes
several
NPs,
particularly
silver
(AgNPs),
gold
(AuNPs),
platinum
(PtNPs),
copper
(CuNPs),
zinc
oxide
(ZnONPs),
iron
(FeONPs),
palladium
(PdNPs).
Green
synthesis
methods,
a
truly
innovative
approach,
utilize
biological
substances
such
as
plant
extracts,
bacteria,
fungi,
yeast.
These
methods
offer
environmentally
friendly
biologically
compatible
alternatives
to
conventional
techniques.
details
these
sustainable
approaches
advantages
over
traditional
methods.
natural
sources
provide
abundant,
cost-effective,
alternative
for
NP
production.
importance
thorough
characterization
is
also
discussed,
highlighting
techniques
transmission
electron
microscopy
(TEM),
scanning
(SEM),
X-ray
photoelectron
spectroscopy
(XPS),
Fourier-transform
infrared
(FTIR),
diffraction
(XRD),
UV–Vis
analyze
shape,
structural
integrity,
optical
behavior
NPs.
highlights
vast
potential
biosensors,
which
play
critical
role
medical
diagnostics,
environmental
monitoring,
food
safety.
Incorporating
electrochemical,
optical,
thermometric,
piezoelectric
biosensors
significantly
enhances
sensitivity
specificity,
enabling
rapid
real-time
detection
analytes.
RSC Advances,
Год журнала:
2025,
Номер
15(5), С. 3858 - 3903
Опубликована: Янв. 1, 2025
A
sustainable
and
viable
alternative
for
conventional
chemical
physical
approaches
is
the
green
production
of
silver
nanoparticles
(SNPs)
using
plant
extracts.
Green Processing and Synthesis,
Год журнала:
2023,
Номер
12(1)
Опубликована: Янв. 1, 2023
Abstract
This
work
aims
to
investigate
the
environmentally
sustainable
technique
synthesize
copper
nanoparticles
using
bougainvillea
flower
ethanolic
extract
at
ambient
temperature.
Copper
have
considerable
potential
for
reducing
environment’s
harmful
pigments
and
nitrogen
contaminants.
The
oxidized
nanoscale
catalysts
are
enclosed
inside
nanomaterial,
which
as
a
benign
resource
capping
agents.
Ultraviolet
spectroscopic,
transmission
electron
microscopy
(TEM),
X-ray
crystallography
(XRD)
techniques
were
used
evaluate
produced
nanocrystals.
particles
been
very
robust,
cylindrical
in
form,
an
outer
diameter
of
12
nm.
Furthermore,
under
normal
conditions,
oxide
(CuO)
nanomaterials
demonstrated
strong
photocatalytic
efficiency
liquid
media
oxidation
Congo
red,
bromothymol
blue,
4-nitrophenol
acidic
solution
acetic
anhydride.
Moreover,
CuO
nanocrystalline
enzyme
could
be
readily
vortexed
or
five
cycles
with
exchange
rate
even
over
90%.
evaporation
process
caused
around
18%
loss
weight
between
25°C
190°C,
while
soil
organic
breakdown
almost
31%
700°C.
As
result,
little
reduction
enzymatic
effectiveness
recoverable
multilayer
substrate
might
attributed
catalytic
degradation
throughout
spinning
processing.
