Materials,
Journal Year:
2025,
Volume and Issue:
18(6), P. 1254 - 1254
Published: March 12, 2025
An
Mg-based
alloy
device
manufactured
via
a
superplastic
forming
process
(Mg-AZ31+SPF)
and
coated
using
hydrothermal
method
(Mg
AZ31+SPF+HT)
was
investigated
as
to
increase
mechanical
osteointegration
capability.
The
cell
viability
osteointegrative
properties
of
alloy-derived
Mg
AZ31+SPF
AZ31+SPF+HT
extracts
were
regarding
their
effect
on
human
mesenchymal
stem
cells
(hMSCs)
(maintained
in
basal
(BM)
osteogenic
medium
(OM))
after
7
14
days
treatment.
analyzed
through
metabolic
activity
double-strand
DNA
quantification,
while
the
osteoinductive
effects
evaluated
qRT-PCR,
osteoimage,
BioPlex
investigations.
Finally,
preliminary
liquid
mass
spectrometry
analysis
conducted
secretome
hMSCs.
Biocompatibility
revealed
no
toxic
cells’
or
proliferation
during
experimental
period.
A
modulation
observed
osteoblast
pre-commitment
genes
hMSCs
treated
with
Mg-AZ31+SPF+HT
OM,
which
supported
by
mineralization
nodule
analysis.
investigation
highlighted
protein
clusters
involved
extracellular
exosomes,
Hippo,
lipid
metabolism
process.
In
conclusion,
our
results
that
can
modulate
canonical
non-canonical
vitro,
suggesting
possible
application
bone
tissue
engineering.
BioMedical Engineering OnLine,
Journal Year:
2025,
Volume and Issue:
24(1)
Published: Jan. 21, 2025
With
precise
control
of
smart
materials
deformation
in
time
dimension,
doctors
can
customize
orthopedic
implants.
This
review
focuses
on
the
advances
4D
printing
technology
orthopedics,
including
its
applications
bone
repair
and
reconstruction,
personalized
treatment,
drug
delivery.
enables
creation
bionic
scaffolds
fixation
devices
for
repair,
customized
implants
matching
patients'
conditions
specific
carriers
accurate
release
delivery,
which
together
contribute
to
accelerating
healing,
providing
exclusive
treatments,
enhancing
therapeutic
effects
reducing
side
effects,
thus
helping
improve
medicine.
It
offers
comprehensive
reference
relevant
medical
personnel.
Materials Today Bio,
Journal Year:
2025,
Volume and Issue:
31, P. 101531 - 101531
Published: Feb. 5, 2025
Three-dimensional
(3D)
printing
technology
has
shown
significant
promise
in
the
medical
field,
particularly
orthopedics,
prosthetics,
tissue
engineering,
and
pharmaceutical
preparations.
This
review
focuses
on
innovative
application
of
3D
addressing
challenges
osteonecrosis
femoral
head
(ONFH).
Unlike
traditional
hip
replacement
surgery,
which
is
often
suboptimal
for
younger
patients,
offers
precise
localization
necrotic
areas
ability
to
create
personalized
implants.
By
integrating
advanced
biomaterials,
this
a
promising
strategy
approach
early
hip-preserving
treatments.
Additionally,
3D-printed
bone
engineering
scaffolds
can
mimic
natural
environment,
promoting
regeneration
vascularization.
In
future,
potential
extends
combining
with
artificial
intelligence
optimizing
treatment
plans,
developing
materials
enhanced
bioactivity
compatibility,
translating
these
innovations
from
laboratory
clinical
practice.
demonstrates
how
uniquely
addresses
critical
ONFH
treatment,
including
insufficient
vascularization,
poor
mechanical
stability,
limited
long-term
success
conventional
therapies.
introducing
gradient
porous
scaffolds,
bioactive
material
coatings,
AI-assisted
design,
work
outlines
novel
strategies
improve
interventions.
These
advancements
not
only
enhance
efficacy
but
also
pave
way
findings
into
applications.
Applied Sciences,
Journal Year:
2024,
Volume and Issue:
14(21), P. 9919 - 9919
Published: Oct. 30, 2024
In
the
era
of
Industry
4.0,
3D
printing,
or
additive
manufacturing
(AM),
has
revolutionized
product
design
and
across
various
sectors.
This
review
explores
evolution
printing
technology
its
impact
on
industrial
innovation,
highlighting
advancements
in
aeronautics,
automotive
industry,
biomedicine.
Various
AM
processes,
such
as
binder
jetting,
direct
energy
deposition,
powder
bed
fusion,
materials
like
metals,
polymers,
ceramics,
composites,
are
discussed.
Innovations
high-speed
sintering,
continuous
liquid
interface
production,
bioprinting
demonstrate
ongoing
advancements.
The
potential
personalized
medical
applications
is
emphasized
due
to
flexibility
geometry
materials.
Despite
progress,
challenges
standardization,
material
quality,
recycling,
sustainability,
economic
feasibility
hinder
widespread
adoption.
Overcoming
these
crucial
for
optimizing
technologies,
ensuring
high-quality,
efficient,
affordable
production.
also
addresses
future
prospects
4D
5D
technologies
their
industries.
overview
underscores
printing’s
role
shaping
within
context
5.0,
emphasizing
human–machine
collaboration
sustainability.
Biofabrication,
Journal Year:
2024,
Volume and Issue:
16(2), P. 025027 - 025027
Published: Feb. 23, 2024
One
of
the
key
challenges
in
biofabrication
applications
is
to
obtain
bioinks
that
provide
a
balance
between
printability,
shape
fidelity,
cell
viability,
and
tissue
maturation.
Decellularization
methods
allow
extraction
natural
extracellular
matrix,
preserving
tissue-specific
matrix
proteins.
However,
critical
challenge
bone
decellularization
preserve
both
organic
(collagen,
proteoglycans)
inorganic
components
(hydroxyapatite)
maintain
composition
functionality
bone.
Besides,
there
need
investigate
effects
decellularized
(DB)
particles
as
tissue-based
additive
bioink
formulation
develop
functional
bioinks.
Here
we
evaluated
effect
incorporating
DB
different
sizes
(≤45
≤100μm)
concentrations
(1%,
5%,
10%
(wt
%))
into
formulations
containing
gelatin
(GEL)
pre-osteoblasts
(MC3T3-E1)
or
human
mesenchymal
stem
cells
(hTERT-MSCs).
In
addition,
propose
minimalistic
using
GEL,
with
an
easy
preparation
process
resulting
high
viability.
The
printability
properties
inks
were
evaluated.
Additionally,
rheological
determined
shear
thinning
thixotropy
tests.
bioprinted
constructs
cultured
for
28
days.
proliferation,
osteogenic
differentiation
capacity
biochemical
assays
fluorescence
microscopy.
incorporation
enhanced
proliferation
which
might
be
due
collagen
hydroxyapatite
content
particles.
Alkaline
phosphatase
activity
increased
significantly
by
particles,
notably,
without
induction
cells.
Moreover,
images
display
pronounced
cell-material
interaction
attachment
inside
constructs.
With
these
promising
results,
present
envisioned
potential
candidate
engineering
clinically
translatable
material
straightforward
activity.
Virtual and Physical Prototyping,
Journal Year:
2024,
Volume and Issue:
19(1)
Published: May 2, 2024
3D-printed
HA-PLA
composites
have
attracted
much
attention
because
of
their
excellent
biodegradability
and
osteointegration
properties.
However,
HA
particles
negatively
affect
the
mechanical
properties
composite
parts.
In
this
study,
ultrasonic
vibration-assisted
3D
printing
was
used
to
improve
specimens,
effects
different
infill
angles
vibration
power
on
were
investigated.
The
results
demonstrated
that
degradation
anisotropy
alleviated
by
use
vibration.
By
applying
vibration,
tensile
flexural
strengths
20
wt%
specimens
fabricated
with
a
90°
angle
largest
improvement
104.3%
112.7%,
respectively.
high-frequency
waves
promoted
spreading
fusion
extruded
materials,
thereby
reducing
overlapping
voids
within
improving
interface
bonding
strength,
also
facilitated
refinement
dispersibility
particles,
which
inhibited
formation
stress
concentrations
ultimately
improved
process
developed
in
study
can
be
adapted
other
particle
(or
reinforcement
types)
reinforced
performance.
Journal of the European Ceramic Society,
Journal Year:
2024,
Volume and Issue:
44(9), P. 5284 - 5297
Published: Jan. 21, 2024
This
study
investigates
the
parametric
quality
and
reliability
of
3D-printed
scaffolds
using
a
composite
filament
comprising
thermoplastic
polymer
hydroxyapatite
in
1:1
weight
ratio.
Employing
fused
fabrication
printer,
we
verified
3D
printing
strategy,
sintering
temperature
range,
preparation
scaffolds.
To
complete
study,
vitro
cytotoxicity
tests
animal
human
cell
models
were
conducted.
The
calcium-deficient
(Ca/P
~
1.54)
used
exhibited
after
differences
crystalochemical
phases
different
rations,
comparing
to
stoichiometric
≅
1.67).
FFF
process
successfully
produced
scaffold
macropores
suitable
for
tissue
vascularization
(~380
µm
or
smaller).
Optimal
proliferation
was
identified
at
1300
°C,
especially
effective
investigated
hydroxyapatite.
Cytotoxicity
assessment
with
murine
fibroblastic
cells
demonstrated
differing
behaviour,
emphasizing
need
careful
material
property
modifications
practical
utilization.