Scientific Reports,
Journal Year:
2022,
Volume and Issue:
12(1)
Published: Aug. 19, 2022
In
the
present
work,
different
nanoparticles
spinel
ferrite
series
(MFe2O4,
Co0.5M0.5Fe2O4;
M
=
Co,
Mn,
Ni,
Mg,
Cu,
or
Zn)
have
been
obtained
via
sonochemical
approach.
Then,
sol-gel
method
was
employed
to
design
core-shell
magnetoelectric
nanocomposites
by
coating
these
with
BaTiO3
(BTO).
The
structure
and
morphology
of
prepared
samples
were
examined
X-ray
powder
diffraction
(XRD),
scanning
electron
microscope
(SEM)
coupled
energy
dispersive
spectroscopy
(EDX),
high-resolution
transmission
(HR-TEM),
zeta
potential.
XRD
analysis
showed
presence
BTO
phases
without
any
trace
a
secondary
phase.
Both
crystallized
in
cubic
structure.
SEM
micrographs
illustrated
an
agglomeration
spherical
grains
nonuniformly
diphase
orientation
degrees
agglomeration.
Moreover,
HR-TEM
revealed
interplanar
d-spacing
planes
that
are
good
agreement
those
phase
These
techniques
along
EDX
analyses
confirmed
successful
formation
desired
nanocomposites.
Zeta
potential
also
investigated.
biological
influence
CoMFe)
MNPs
(MFe2O4@BTO,
CoMFe@BTO)
MTT
DAPI
assays.
Post
48
h
treatments,
anticancer
activity
MENCs
investigated
on
human
colorectal
carcinoma
cells
(HCT-116)
against
cytocompatibility
normal
non-cancerous
(HEK-293).
It
established
possess
anti-colon
cancer
capability
while
exhibited
recovery
effect
due
protective
biocompatible
layer.
RBCs
hemolytic
NPs
has
ranged
from
non-
low-hemolytic
effect.
This
could
be
attributed
surface
charge
potential,
CoMnFe
possesses
stable
lowest
comparison
CoFe2O4
MnFe2O4
shell.
findings
open
up
wide
prospects
for
biomedical
applications
as
promising
drug
nanocarriers.
Advances in Colloid and Interface Science,
Journal Year:
2022,
Volume and Issue:
308, P. 102753 - 102753
Published: Aug. 16, 2022
Photothermal
therapy
(PTT)
is
a
promising
alternative
for
benign
or
even
malignant
tumors.
To
improve
the
selective
heating
of
tumor
cells,
target-specific
photothermal
conversion
agents
are
often
included,
especially
nanoparticles.
Meanwhile,
some
indirect
methods
by
manipulating
radiation
and
heat
delivery
also
adopted.
Therefore,
to
gain
clear
understanding
mechanism,
controllability
PTT,
few
issues
need
be
clarified,
including
bioheat
transfer,
localized
collective
nanoparticles,
etc.
In
this
review,
we
provide
an
introduction
typical
transfer
models
along
with
dynamic
thermophysical
properties
biological
tissue.
On
basis,
reviewed
most
recent
advances
in
temperature
control
PTT
from
macroscale
nanoscale.
Most
importantly,
comprehensive
effects
nanoparticle
clusters
provided
give
insight
into
mechanism
PPT
microscale
nanoscale
point
view.
Scientific Reports,
Journal Year:
2021,
Volume and Issue:
11(1)
Published: Jan. 18, 2021
In
order
to
deal
with
the
arising
environmental
issues
across
globe
at
present
nano
particles
unique
properties
laid
a
benchmark
in
name
of
catalysis.
this
work
significance
calcination
temperature
on
thermal,
electronic,
structural
and
surface
catalyst
produced
by
sol-gel
method
using
ultrasonic
radiation
against
disposal
toxic
textile
pollutants
is
studied
detail.
The
extract
tea
leaves
has
been
used
as
bio-template
during
synthesis
revise
crystallite
size,
area,
optical
absorption
potential,
rate
agglomeration
sized
grains
regulating
their
physico-chemical
properties.
influence
transformation
single
phased
anatase
titania
mixed
phase
anatase-rutile
corresponding
outcome
its
photocatalytic
activity
employed
water
treatment
applications
have
verified.
obtained
characterized
X-ray
diffraction
(XRD),
Scanning
electron
microscopy
(SEM),
Transition
(TEM),
Fourier
transform
infrared
spectroscopy
(FT-IR),
Thermo
gravimetric
analysis
(TGA),
Brunaueur
Emmett
Teller
(BET)
analysis,
UV-Vis
diffused
reflectance
(DRS-UV-Vis)
etc.
mesoporosity
particle
was
examined
Barrett
Joyner
Halenda
(BJH)
model.
enhanced
photo
catalytic
efficiency
(about
97.7%)
templated
due
verified
Congo
red,
dye
under
optimized
conditions.
can
be
easily
separated,
recycled
support
economic
feasibility.
RSC Advances,
Journal Year:
2022,
Volume and Issue:
12(38), P. 25081 - 25095
Published: Jan. 1, 2022
We
herein
report
the
controllable
synthesis
of
spherical
cobalt
ferrite
nanoparticles
with
average
crystallite
size
in
range
3.6-12.9
nm
using
a
facile,
eco-friendly,
hydrothermal
method.
The
treatment
was
carried
out
by
utilizing
nitrate,
ferric
and
ammonium
hydroxide
presence
absence
Arabic
gum
as
surfactant
agent.
purity
crystallinity
products
were
tuned
varying
reaction
conditions
such
time
(0.5-8
h),
temperature
(120-180
°C),
percentage
ethylene
glycol
(0-100%
(v/v)),
pH
(8-9.6),
amount
(0-2
g).
characterized
prepared
X-ray
diffraction
(XRD),
field-emission
scanning
electron
microscopy
(FE-SEM),
Fourier
transform
infrared
spectroscopy
(FT-IR),
high-resolution
transmission
(HR-TEM),
energy-dispersive
analysis
(EDS),
selected
area
(SAED)
patterns,
UV-visible
diffuse
reflectance
spectra
(DRS).
optimal
performed
at
180
°C
9.6
for
4
h
aqueous
media.
results
also
revealed
that
as-prepared
spinel
have
an
estimated
optical
band
gap
energy
ca.
1.6-1.9
eV,
indicating
semiconducting
characteristics
products.
