A
SQUID
is
a
superconducting
quantum
interference
device.
It
very
sensitive
magnetometer
used
to
measure
extremely
subtle
magnetic
fields,
based
on
loops
containing
Josephson
junctions.
The
Zero
Field
Cooling
(ZFC)
curve
shows
magnetism
over-temperature
by
applying
small
external
field
of
about
50
Oe
as
an
example.
In
the
case
bifurcation
or
merging
ZFC
and
curves
depends
several
factors
such
how
much
applied,
size
particles,
measurement
temperature.
One
can
get
various
information
from
these
depending
interest
aim.
Some
are:
blocking
temperature,
Néel
types
magnetism,
spin
glass
superparamagnetic
phase.
To
understand
deeply
correlation
between
magnetization
it
essential
ponder
thermal
fluctuation
effect
that
allows
transition
stable
configurations.
Magnetochemistry,
Journal Year:
2022,
Volume and Issue:
8(10), P. 131 - 131
Published: Oct. 18, 2022
Silica
nanoparticles
have
been
widely
explored
in
biomedical
applications,
mainly
related
to
drug
delivery
and
cancer
treatment.
These
excellent
properties,
high
biocompatibility,
chemical
thermal
stability,
ease
of
functionalization.
Moreover,
silica
is
used
coat
magnetic
protecting
against
acid
leaching
aggregation
as
well
increasing
cytocompatibility.
This
review
reports
the
recent
advances
silica-based
focusing
on
delivery,
target
systems,
their
use
magnetohyperthermia
resonance
imaging.
Notwithstanding,
application
other
fields
also
reported
discussed.
Finally,
this
work
provides
an
overview
challenges
perspectives
field.
Journal of Composites Science,
Journal Year:
2024,
Volume and Issue:
8(10), P. 425 - 425
Published: Oct. 14, 2024
Magnetic
fluid
hyperthermia,
a
minimally
invasive
localized
therapy
that
uses
heat
generated
by
magnetic
nanoparticles
under
an
AC
field,
is
complementary
approach
for
cancer
treatment
excellent
due
to
its
advantages
of
being
noninvasive
and
addressing
only
the
affected
region.
Still,
use
as
stand-alone
hindered
simultaneous
requirement
nanoparticle
biocompatibility,
good
heating
efficiency,
physiological
safe
dose.
To
overcome
these
limits,
biocompatible
nanoparticles’
efficiency
must
be
optimized.
Iron
oxide
are
accepted
more
available.
Therefore,
in
this
work,
superparamagnetic
iron
were
synthesized
low-cost
coprecipitation
method
modified
with
starch
gum
increase
their
compatibility
living
tissues.
Two
different
reducing
agents,
sodium
hydroxide
(NaOH)
ammonium
(NH4OH),
used
compare
influence.
The
X-ray
diffraction
results
indicate
formation
single
magnetite/maghemite
phase
all
cases,
particle
size
distribution
depending
on
coating
agent.
Citric
acid
functionalized
water-based
ferrofluids
also
prepared
study
field
274
kHz
frequency
14
kAm−1
amplitude.
samples
NaOH
display
higher
specific
loss
power
(SLP)
compared
ones
NH4OH.
SLP
value
72
Wg−1
coated
combination
arabic,
corresponding
intrinsic
(ILP)
2.60
nWg−1,
indicates
they
potential
materials
hyperthermia
therapy.
Results in Chemistry,
Journal Year:
2023,
Volume and Issue:
6, P. 100999 - 100999
Published: June 13, 2023
This
study
investigates
the
green
synthesis
of
Fe3O4/Ag
composite
nanoparticles
using
Moringa
Oleifera
(MO)
extract
in
coprecipitation
process.
The
microstructure,
optical,
and
magnetic
properties
synthesized
are
examined
specific
absorption
rate
(SAR)
is
measured.
X-ray
pattern
results
reveal
that
addition
Ag
increases
crystallite
size
to
25.4–32.6
nm.
Fourier
transform
infrared
spectra
confirm
presence
nanoparticles.
Magnetic
measurements
show
samples
have
soft
ferromagnetic
at
room
temperature,
with
increased
coercivity
reduced
saturation
magnetization
after
addition.
bandgap
energy
determined
be
approximately
3.35
eV,
which
decreases
2.99
eV
SAR
value
a
calorimetric
method
varies
from
0.81
Wg−1
2.12
under
different
alternating
field
(AMF)
strengths.
magnetization,
frequency,
amplitude
AMF
all
influence
Overall,
indicate
Fe3O4
has
significant
impact
on
microstructural,
magnetic,
nanoparticles,
making
them
promising
candidate
for
use
as
hyperthermia
agent.
Journal of Biomaterials Applications,
Journal Year:
2024,
Volume and Issue:
39(1), P. 3 - 23
Published: April 12, 2024
Hyperthermia
therapy
refers
to
the
elevating
of
a
region
in
body
for
therapeutic
purposes.
Different
techniques
have
been
applied
hyperthermia
including
laser,
microwave,
radiofrequency,
ultrasonic,
and
magnetic
nanoparticles
latter
received
great
attention
recent
years.
Magnetic
cancer
aims
increase
temperature
tissue
by
locally
delivering
heat
from
cells
with
aid
an
external
alternating
field
kill
cancerous
or
prevent
their
further
growth.
This
review
introduces
nanoparticles.
It
includes
mechanism
operation
magnetism
behind
phenomenon.
synthesis
methods
surface
modification
enhance
biocompatibility,
water
solubility,
stability
physiological
environments
discussed.
Recent
research
on
versatile
types
ability
local
has
addressed.
