Nanomaterials,
Год журнала:
2025,
Номер
15(3), С. 224 - 224
Опубликована: Янв. 30, 2025
In
this
work,
we
report
for
the
first
time
development
and
complex
characterization
of
new
bioceramics
based
on
hydroxyapatite
(HAp,
Ca10(PO4)6(OH)2).
On
other
hand,
lyophilization
process
was
used
in
research.
The
samples
were
obtained
by
a
modified
coprecipitation
method
dried
(lyophilized
(HApLF)
lyophilized
zinc-doped
(5ZnHApLF)).
Valuable
information
about
HApLF
5ZnHApLF
stability
through
nondestructive
ultrasound
measurements.
X-ray
diffraction
(XRD)
studies
revealed
phase
effects
incorporation
Zn
ions
into
HAp
structure.
chemical
composition
evaluated
energy
dispersive
analysis
(EDS)
photoelectron
spectroscopy
(XPS).
Information
functional
groups
present
using
Fourier
Transform
Infrared
Spectroscopy
(FTIR)
studies.
morphology
pellets
observed
scanning
electron
microscopy
(SEM).
surface
topography
studied
with
aid
atomic
force
(AFM).
Details
regarding
roughness
also
AFM
topographies
SEM
images.
A
complementary
study
carried
out
larger
Scanning
Acoustic
Microscope
(SAM).
SAM
to
analyze
5ZnHAp
pellets.
biological
properties
investigated
MG63
human
gingival
fibroblasts
(HGF-1)
cell
lines.
results
viability
assay
highlighted
that
both
exhibited
good
activity.
Moreover,
conducted
order
emphasize
HGF-1
cells
pellet’s
surface.
Both
images
depicted
pellets’
favored
attachment
cells.
Furthermore,
antimicrobial
against
Escherichia
coli
ATCC
25922,
Staphylococcus
aureus
25923,
Candida
albicans
10231.
assays
strong
activity
tested
microbial
strains.
suggested
show
great
potential
being
novel
materials
biomedical
applications.
Advanced Optical Materials,
Год журнала:
2024,
Номер
12(28)
Опубликована: Авг. 22, 2024
Abstract
Crystalline
α‐Gd
2
(MoO
4
)
3
is
synthesized
by
sintering
at
800
°C
using
a
coprecipitation
method
to
prepare
the
precursor.
The
resulting
displayed
monocrystalline
structure
with
strong
main
peak
(‐221)
in
X‐ray
diffraction
signal.
To
develop
light‐emitting
material,
rare
earth
ions
are
added
during
synthesis.
By
doping
Tb
3+
and
Eu
,
Gd
down‐conversion
phosphor
shows
potential
for
use
UV–LED
chips,
counterfeit
money
prevention,
fingerprint
identification.
Additionally,
co‐doping
[Er
]/[Yb
]
[Ho
produce
green
red
emissions
when
applied
980
nm
LED
chip,
useful
anti‐counterfeit
ink.
magnetic
properties
of
gadolinium
leveraged
confirm
resonance
imaging
luminescence.
A
flexible
composite
heat
detection
explored
various
applications
its
also
developed.
Journal of Materials Chemistry B,
Год журнала:
2023,
Номер
11(32), С. 7609 - 7622
Опубликована: Янв. 1, 2023
Intracellular
degradation
of
HAPNs
and
inhibition
PMCA
activity
jointly
contributed
to
calcium
overload
in
tumor
cells,
which
then
activated
calpain-mediated
mitochondrial
apoptosis
pathways,
resulting
cancer
cell-specific
toxicity.
Biomimetics,
Год журнала:
2024,
Номер
9(6), С. 309 - 309
Опубликована: Май 22, 2024
In
this
study,
we
report
on
the
development
of
hydroxyapatite
(HAp)
and
samarium-doped
(SmHAp)
nanoparticles
using
a
cost-effective
method
their
biological
effects
bone-derived
cell
line
MC3T3-E1.
The
physicochemical
features
HAp
SmHAp
are
explored.
X-ray
diffraction
(XRD)
studies
revealed
that
no
additional
peaks
were
observed
after
integration
samarium
(Sm)
ions
into
structure.
Valuable
information
regarding
molecular
structure
morphological
obtained
by
Fourier-transform
infrared
spectroscopy
(FTIR),
transmission
electron
microscopy
(TEM),
photoelectron
(XPS).
elemental
composition
energy-dispersive
(EDS)
confirmed
presence
constituent
elements,
Ca,
O,
P,
as
well
uniform
distribution
Sm3+
ions.
Both
demonstrated
biocompatibility
at
concentrations
below
25
μg/mL
50
μg/mL,
respectively,
for
up
to
72
h
exposure.
Cell
membrane
integrity
was
preserved
following
treatment
with
100
400
SmHAp,
confirming
role
in
enhancing
cytocompatibility
HAp.
Furthermore,
our
findings
reveal
positive,
albeit
limited,
effect
actin
dynamics,
osteogenesis,
migration
compared
nanoparticles.
Importantly,
results
highlight
potential
maintaining
cellular
balance
mitigating
disruptions
Ca2+
homeostasis
induced
Therefore,
study
represents
significant
contribution
safety
assessment
both
biomedical
applications
focused
bone
regeneration.
Ceramics,
Год журнала:
2023,
Номер
6(3), С. 1799 - 1825
Опубликована: Авг. 22, 2023
Complex
inorganic
powders
based
on
calcium
phosphates
have
found
a
plethora
of
practical
applications.
Of
particular
interest
are
the
CaO-P2O5
system-based
multi-component
material
and
granules
as
source
major-
micronutrients
for
plants.
The
emerging
strategy
is
to
use
nano
fertilizers
hydroxyapatite
(HAP)
phosphorus
other
nutrient
delivery.
doping
into
HAP
structure
presents
an
interesting
challenge
in
obtaining
specific
phase
compositions
these
phosphates.
Various
techniques,
including
mechanochemical
synthesis,
been
employed
fabricate
doped
HAP.
Mechanochemical
synthesis
this
review
since
it
relatively
simple,
scalable,
cost-effective
method
phosphate
powder
processing.
involves
mechanical
force
promote
chemical
reactions
create
nanometric
powders.
This
technique
has
successfully
applied
produce
nanoparticles
alone,
with
elements,
such
zinc
magnesium.
Nanofertilizers
developed
through
can
offer
several
advantages
over
conventional
fertilizers.
Their
nanoscale
size
allows
rapid
absorption
controlled
release
nutrients,
which
leads
improved
uptake
efficiency
by
Furthermore,
tailored
properties
HAP-based
fertilizers,
porosity
degradation
levels,
contribute
their
effectiveness
providing
plant
nutrition.
Journal of Colloid and Interface Science,
Год журнала:
2024,
Номер
659, С. 926 - 935
Опубликована: Янв. 9, 2024
Achieving
a
controlled
preparation
of
nanoparticle
superstructures
with
spatially
periodic
arrangement,
also
called
superlattices,
is
one
the
most
intriguing
and
open
questions
in
soft
matter
science.
The
interest
such
regular
superlattices
originates
from
potentialities
tailoring
physicochemical
properties
individual
constituent
nanoparticles,
eventually
leading
to
emerging
behaviors
and/or
functionalities
that
are
not
exhibited
by
initial
building
blocks.
Despite
progress,
it
currently
difficult
obtain
ordered
structures;
influence
parameters,
as
size,
softness,
interaction
potentials,
entropy,
neither
fully
understood
yet
sufficiently
studied
for
3D
systems.
In
this
work,
we
describe
synthesis
characterization
hierarchical
structures
coated
cerium
oxide
nanoparticles
water
suspension
prepared
bottom-up
approach.
Covering
CeO
