Chemistry - An Asian Journal,
Journal Year:
2024,
Volume and Issue:
19(21)
Published: Aug. 10, 2024
Abstract
This
review
portrays
a
comparison
between
green
protocols
and
conventional
nanoparticle
(NP)
synthesis
strategies,
highlighting
each
method's
advantages
limitations.
Various
top‐down
bottom‐up
methods
in
NP
are
described
detail.
The
chemistry
principles
emphasized
for
designing
safe
processes
nanomaterial
synthesis.
Among
the
biogenic
sources
plant
extracts,
vitamins,
enzymes,
polysaccharides,
fungi
(Molds
mushrooms),
bacteria,
yeast,
algae,
lichens
discussed.
Limitations
reproducibility
of
terms
availability
raw
material,
variation
synthetic
protocol,
selection
material
due
to
geographical
differences
elaborated.
Finally,
conclusion
is
drawn
utilizing
chemical
principles,
&
circular
economy
strategy
minimize
waste
generation,
offering
promising
framework
NPs
emphasizing
sustainability.
Bioengineering,
Journal Year:
2024,
Volume and Issue:
11(5), P. 492 - 492
Published: May 15, 2024
Nanotechnology
has
emerged
as
an
effective
means
of
removing
contaminants
from
water.
Traditional
techniques
for
producing
nanoparticles,
such
physical
methods
(condensation
and
evaporation)
chemical
(oxidation
reduction),
have
demonstrated
high
efficiency.
However,
these
come
with
certain
drawbacks,
including
the
significant
energy
requirement
use
costly
hazardous
chemicals
that
may
cause
nanoparticles
to
adhere
surfaces.
To
address
limitations,
researchers
are
actively
developing
alternative
procedures
cost-effective,
environmentally
safe,
user-friendly.
One
promising
approach
involves
biological
synthesis,
which
utilizes
plants
or
microorganisms
reducing
capping
agents.
This
review
discusses
various
nanoparticle
a
focus
on
synthesis
using
naturally
occurring
bioflocculants
microorganisms.
Bioflocculants
offer
several
advantages,
harmlessness,
biodegradability,
minimal
secondary
pollution.
Furthermore,
covers
characterization
synthesized
their
antimicrobial
activity,
cytotoxicity.
Additionally,
it
explores
utilization
NPs
in
water
purification
dye
removal
processes.
Chemical Engineering Journal,
Journal Year:
2024,
Volume and Issue:
483, P. 149040 - 149040
Published: Jan. 23, 2024
Among
metal-based
nanomaterials,
Copper-based
nanomaterials
(Cu-BNMs)
have
become
a
research
hotspot
in
the
biomedical
field
due
to
their
good
biocompatibility
and
unique
properties.
However,
there
are
fewer
systematic
summaries
of
copper-based
especially
synthesis
Cu-BNMs.
As
for
applications,
Cu-BNMs
been
widely
used
fields
antimicrobial,
imaging,
therapeutics,
showing
excellent
promising
Herein,
this
review
firstly
introduces
classification
various
methods
synthesizing
through
both
top-down
bottom-up
types.
Then,
applications
within
three
tumor
therapy
classified
summarized.
Finally,
challenges
faced
application
future
development
c
discussed
provide
basic
information
illustrations
Nanomaterials,
Journal Year:
2023,
Volume and Issue:
13(21), P. 2853 - 2853
Published: Oct. 27, 2023
Nanoporous
anodic
aluminum
oxide
(AAO)
is
an
important
template
for
1D
nanomaterial
synthesis.
It
used
as
etching
nanopattern
transfer
in
a
variety
of
contexts,
including
nanostructured
material
synthesis,
electrical
sensors,
optical
photonic
and
electronic
devices,
photocatalysis,
hardness
anticorrosion
improvement.
In
this
review,
we
focus
on
various
fabrication
methods,
pore
geometry
modification,
recent
advances
AAO,
well
sensor
applications
linked
to
our
environment,
daily
life,
safety.
Pore
concerned
with
the
composition,
applied
voltage
mold,
electrolyte
type,
temperature,
anodizing
time
during
AAOs
adjusting
their
size
profile.
The
can
be
divided
into
four
types:
direct
current
anodization
(DCA),
reverse
pulse
anodization,
(PA),
hybrid
(HPA).
Conventional
are
fabricated
using
DCA
mild
(MA)
at
relatively
low
temperature
(−5~15
°C)
reduce
Joule
heating
effect.
Moreover,
issues
costly
high-purity
long
processing
improved
HPA
diminish
effect
high
temperatures
20–30
°C
cheap
low-purity
(≤99%)
aluminum.
AAO-based
sensors
discussed
here
primarily
sensors;
performance
both
affected
by
sensing
geometry.
usually
humidity
or
gas
measurement
has
thin
metal
film
surface
electrode.
On
contrary,
AAO
well-known
detecting
substances
kinds
mechanisms:
interference,
photoluminescence,
plasma
resonance,
surface-enhanced
Raman
scattering
(SERS).
Especially
SERS
mechanisms,
either
solid
support
coating
nanoparticles
depositing
content
through
nanopores
form
nanodots
nanowires
substances.
High-performance
will
play
crucial
role
living
environments
promote
quality
life
future.
Micromachines,
Journal Year:
2023,
Volume and Issue:
14(8), P. 1512 - 1512
Published: July 27, 2023
Due
to
the
brittleness
of
silicon,
use
a
diamond
wire
cut
silicon
wafers
is
critical
stage
in
solar
cell
manufacturing.
In
order
improve
production
yield
cutting
process,
it
necessary
have
thorough
understanding
phenomena
relating
parameters.
This
research
reviews
and
summarizes
technology
for
precision
machining
monocrystalline
using
sawing
(DWS).
Firstly,
mathematical
models,
molecular
dynamics
(MD),
finite
element
method
(FEM),
other
methods
used
studying
principle
DWS
are
compared.
Secondly,
equipment
reviewed,
influences
direction
magnitude
force
on
material
removal
rate
(MRR)
analyzed,
improvement
wafer
surface
quality
through
optimizing
process
parameters
summarized.
Thirdly,
principles
processing
performances
three
assisted
methods,
namely
ultrasonic
vibration-assisted
(UV-DWS),
electrical
discharge
(ED-DWS),
electrochemical-assisted
(EC-DWS),
reviewed
separately.
Finally,
prospects
provided,
highlighting
its
significant
potential
future
development
improvement.
SN Applied Sciences,
Journal Year:
2023,
Volume and Issue:
5(4)
Published: March 31, 2023
Abstract
The
primary
objective
of
this
experimental
research
is
to
introduce
the
capacity
laser
irradiation
into
synthesis
bimetallic
nanoparticles
from
noble
metals.
Gold
and
silver
are
produced
through
ablating
gold
targets
in
distilled
water.
Originally,
samples
synthesized
by
using
Nd:YAG
with
1064
nm
wavelength
7
ns
pulse
width.
Following
this,
solutions
mixed
different
volumetric
ratios,
irradiated
second
harmonic
said
at
532
wavelength.
absorption
peak
around
530
nm,
used
transfer
energy
synthesize
Au/Ag
nanoparticles.
ratio
experiment's
variables.
characterized
as
follows:
X-ray
diffraction
pattern,
spectroscopy
range
UV–Vis-NIR
IR,
Photoluminescence
spectrum,
Dynamic
light
scattering,
Fourier
transform
infrared
spectroscopy.
Additionally,
FE-SEM
TEM
images
study
size
morphology
One
aims
investigate
effects
concentrations
on
optical
properties
On
other
hand,
revealed
that
concentration
structures,
cause
formation
crystalline
structure,
growth
grain
size,
therefore
oxide
reduction.
