Four-Dimensional Printing of β-Tricalcium Phosphate-Modified Shape Memory Polymers for Bone Scaffolds in Osteochondral Regeneration
Materials,
Journal Year:
2025,
Volume and Issue:
18(2), P. 306 - 306
Published: Jan. 11, 2025
The
use
of
scaffolds
for
osteochondral
tissue
regeneration
requires
an
appropriate
selection
materials
and
manufacturing
techniques
that
provide
the
basis
supporting
both
cartilage
bone
formation.
As
are
designed
to
replicate
a
part
replaced
ensure
cell
growth
differentiation,
implantable
have
meet
various
biological
requirements,
e.g.,
biocompatibility,
biodegradability,
mechanical
properties.
Osteoconductive
such
as
tricalcium
phosphate
ceramics
some
biodegradable
polymers
appear
be
perfect
choice.
present
work
evaluates
structural,
mechanical,
thermal,
functional
properties
shape
memory
terpolymer
modified
with
β-tricalcium
(β-TCP).
A
new
approach
is
using
developed
4D
printing,
particular
focus
on
its
applicability
in
medical
implants.
In
this
study,
parameters
scaffold
components
were
developed.
examined
via
scanning
electron
microscopy
energy
dispersive
spectroscopy
(SEM-EDS),
Fourier-transform
infrared
(FTIR),
differential
calorimetry
(DSC),
testing.
cytotoxicity
result
was
obtained
MTT
assay,
alkaline
phosphatase
(ALP)
activity
measured.
structural
microstructural
investigations
confirmed
integration
β-TCP
into
filament
matrix
scaffolds.
Thermal
stability
enhanced
delayed
depolymerization
polymer
matrix.
studies
demonstrated
effective
recovery.
vitro
culture
revealed
significantly
increased
viability
β-TCP-modified
after
3
weeks.
can
tailored
applications
which
partial
recovery
acceptable,
Language: Английский
4d Printing of Novel Polybenzimidazole-Containing Structures with Exceptional Radiation Resistance and Mechanical Properties
Published: Jan. 1, 2025
Language: Английский
4D printing of novel polybenzimidazole-containing structures with exceptional radiation resistance and mechanical properties
Applied Materials Today,
Journal Year:
2025,
Volume and Issue:
44, P. 102734 - 102734
Published: April 17, 2025
Language: Английский
Magnetorheological and magnetic actuation behaviour of solvent cast 4D printed styrene-ethylene-butylene-styrene block copolymer based magnetorheological elastomeric materials
Arun Kumar,
No information about this author
Pulak M. Pandey,
No information about this author
Kuldeep
No information about this author
et al.
Journal of Magnetism and Magnetic Materials,
Journal Year:
2024,
Volume and Issue:
unknown, P. 172551 - 172551
Published: Sept. 1, 2024
Language: Английский
Investigating the delamination frequency in 3D-printed PLA-TPU bi-material composite structures under cyclic bending fatigue testing
Ali Dadashi,
No information about this author
Abbasali Bagheri,
No information about this author
Mohammad Azadi
No information about this author
et al.
Smart materials & methods.,
Journal Year:
2024,
Volume and Issue:
1(3), P. 224 - 250
Published: Oct. 13, 2024
This
study
investigates
the
delamination
behaviour
of
PLA-TPU
bi-material
composites,
combining
polylactic
acid
(PLA)
and
thermoplastic
polyurethane
(TPU).
PLA
offers
biodegradability
mechanical
strength,
while
TPU
provides
elasticity
but
is
costly
has
poor
processability.
composites
were
printed
using
fused
deposition
modelling
(FDM).
The
frequency
these
was
examined
rotating
bending
fatigue
tests,
with
numerical
simulations
performed
for
comparison.
results
showed
that
arrangement
content
in
significantly
affected
their
dynamic
properties.
Higher
increased
natural
frequencies,
influencing
fracture
frequency.
For
example,
varied
from
50
hz
a
specimen
central
20%
to
100
layered
centre
layer.
comparative
analysis
between
experimental
indicated
effectively
captured
trends
despite
some
errors.
Layered
configurations
endured
higher
loading
rates
before
failure,
reflecting
an
average
error
4.5%.
findings
underscore
importance
optimizing
material
composition
structure
improved
performance
applications
requiring
composites.
Language: Английский
Advancements and Applications of 4D Bioprinting in Biomedical Science
Chinese Journal of Polymer Science,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 25, 2024
Language: Английский
Elasto-visco-plastic constitutive modelling of blended flexible-tough resins in vat photopolymerization
Smart materials & methods.,
Journal Year:
2024,
Volume and Issue:
unknown, P. 1 - 19
Published: Nov. 29, 2024
The
inherent
limitations
of
tough
resins
in
vat
photopolymerization
3D
printing,
marked
by
their
low
flexibility,
yield
stress,
and
strain-to-failure
properties,
present
significant
challenges
for
applications
demanding
effective
energy
absorption.
This
study
explores
the
enhancement
absorption
capabilities
stability
polymeric
structures
blending
different
resin
types,
aiming
to
achieve
optimal
mechanical
properties.
By
flexible
resins,
this
research
investigates
how
varying
mass
ratios
these
influence
critical
parameters
such
as
failure
strain,
viscoelastic
developed
elastic-visco-plastic
constitutive
model
facilitates
prediction
material
behaviour
under
deformation,
guiding
selection
blends
specific
applications.
findings
demonstrate
a
linear
relationship
between
proportions
responses,
validating
model's
applicability
complex
lattice
structures.
These
contribute
advancing
design
energy-absorbing
aerospace,
automotive,
packaging
industries.
Language: Английский