Cellulose nanocrystal composite films for contactless moisture-electric conversion
Wenna Ge,
Quanmao Wei,
Xu Wang
и другие.
RSC Advances,
Год журнала:
2025,
Номер
15(4), С. 2651 - 2656
Опубликована: Янв. 1, 2025
A
cellulose
nanocrystal
composite
film-based
soft
moisture-electric
converter
demonstrates
high
sensitivity
to
ambient
humidity
fluctuations,
allowing
contactless
control
without
requiring
an
external
power
source.
Язык: Английский
First-Principles Study of Mechanical Properties of Pb(ZrxTi1−x)O3 in the Cubic and Tetragonal Phase
Crystals,
Год журнала:
2025,
Номер
15(2), С. 160 - 160
Опубликована: Фев. 5, 2025
In
this
study,
we
employed
the
first-principles
method
based
on
density
functional
theory
to
calculate
elastic
constants,
bulk
modulus,
shear
Young’s
Poisson’s
ratio,
and
of
states
for
both
cubic
tetragonal
phases
Pb(ZrxTi1−x)O3.
The
structural
model
Pb(ZrxTi1−x)O3
was
established
using
virtual
crystal
approximation
(VCA).
Our
results
demonstrate
that
VCA-calculated
properties
are
in
excellent
agreement
with
other
theoretical
predictions
experimental
data.
As
Zr
content
increases,
lattice
constants
increase,
while
c/a
ratio
initially
decreases
subsequently
increases.
Both
satisfy
Born
stability
criteria,
indicating
mechanical
stability.
For
phase,
modulus
decrease
increasing
content.
contrast,
moduli
exhibit
a
non-monotonic
trend,
peaking
at
0.5,
where
Pb(Zr0.5Ti0.5)O3
demonstrates
superior
properties.
A
comparative
analysis
reveals
as
phase
exhibits
enhanced
resilience,
greater
electronic
structure
stability,
increased
anisotropy.
These
characteristics
make
more
suitable
advanced
manufacturing
techniques
such
additive
manufacturing,
offering
design
flexibility
ferroelectric
materials.
Язык: Английский
Piezoelectricity Promotes 3D-Printed BTO/β-TCP Composite Scaffolds with Excellent Osteogenic Performance
ACS Applied Bio Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 27, 2025
Piezoelectricity
is
reported
to
be
able
promote
bone
scaffolds
with
excellent
osteogenic
performance.
Herein,
barium
titanate/β-tricalcium
phosphate
(BTO/β-TCP)
piezoelectric
composite
were
3D
printed,
and
their
performances
investigated
in
detail.
The
fabrication
of
BTO/β-TCP
employed
cutting-edge
DLP
printing
technology.
scaffolds,
featuring
a
triply
periodic
minimal
surface
(TPMS)
design
porosity
60%,
offered
unique
structural
framework.
A
comprehensive
assessment
the
composition,
properties,
mechanical
characteristics
was
conducted.
Notably,
an
increase
BTO
volume
fraction
from
50
80
vol
%
within
led
reduction
compressive
strength,
decreasing
2.47
1.74
MPa.
However,
this
variation
accompanied
by
substantial
enhancement
constant
d33,
soaring
1.4
pC/N
21.6
pC/N.
Utilizing
mouse
osteoblasts
(MC3T3-E1)
live/dead
cell
staining
assay,
under
influence
external
ultrasound,
demonstrated
commendable
biocompatibility
these
ceramic
scaffolds.
Furthermore,
thorough
analyses
alkaline
phosphatase
(ALP)
activity
polymerase
chain
reaction
(PCR)
findings
provided
compelling
evidence
scaffolds'
superior
underpinning
effectiveness
at
cellular
protein
gene
levels.
In
conclusion,
study
offers
groundbreaking
strategy
for
employment
implant
applications,
harnessing
blend
biocompatibility,
piezoelectricity,
potential.
Язык: Английский
Piezoelectric Biomaterials for Use in Bone Tissue Engineering—A Narrative Review
Journal of Biomedical Materials Research Part B Applied Biomaterials,
Год журнала:
2025,
Номер
113(4)
Опубликована: Март 17, 2025
ABSTRACT
To
examine
natural
bone's
bioelectrical
traits,
notably
its
piezoelectricity,
and
to
look
into
how
these
characteristics
influence
bone
growth
repair.
In
the
context
of
exploring
potential
piezoelectric
biomaterials,
such
as
biopolymers
bio‐ceramics,
towards
orthopedic
regeneration
applications,
research
seeks
evaluate
significance
piezoelectricity‐driven
osteogenesis.
The
paper
reviews
recent
on
electrical
dielectric
properties,
surface
polarization/electrical
stimulation
effects
interacting
with
cell
activity
effectiveness
biomaterials
support
tissues'
regenerative
process.
study
includes
a
number
materials,
collagen,
polyvinylidene
fluoride
(PVDF)
barium
titanate.
applications
organic
polymers,
polymers
are
particularly
highlighted.
Piezoelectric
being
shown
in
studies
enhance
cellular
metabolism
vitro
well
promote
tissues
vivo,
especially
when
paired
electric
field
or
interface
polarization.
bio‐ceramics
like
magnesium
silicate
titanate,
collagen
PVDF,
have
possibilities
for
applications.
However,
there
several
challenges
regarding
manufacturing
specific
compositions
having
desired
properties.
This
review
highlighted
special
emphasis
bioceramics.
Therefore,
types
materials
huge
because
they
can
mimic
properties
allow
better
advances
tissue
engineering
medicine.
date,
little
is
known
about
their
mechanism
action,
modifications
needed
improve
efficacy
clinical
uptake.
Язык: Английский
Advanced Vat Photopolymerization of Polymer-derived 70S30C Glass-Carbon Nano-Composites: Topological Control and Biological Validation
Journal of the European Ceramic Society,
Год журнала:
2025,
Номер
unknown, С. 117384 - 117384
Опубликована: Март 1, 2025
Язык: Английский
3D Printing of Polyester Scaffolds for Bone Tissue Engineering: Advancements and Challenges
Advanced Materials Technologies,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 27, 2024
Abstract
Polyesters
have
garnered
significant
attention
in
bone
tissue
engineering
(BTE)
due
to
their
tunable
degradation
rates,
biocompatibility,
and
convenient
processing.
This
review
focuses
on
recent
advancements
challenges
the
3D
printing
of
polyester‐based
scaffolds
for
BTE.
Various
techniques,
such
as
fused
deposition
modeling
(FDM),
selective
laser
sintering
(SLS),
vat
photopolymerization
(VP),
Wet‐spun
additive
manufacturing,
are
explored,
emphasizing
ability
construct
with
precise
architectural
control.
The
main
printed
polyester
limited
mechanical
properties,
lack
inherent
bioactivity,
release
acidic
byproducts
during
biodegradation.
Strategies
enhance
scaffold
performance,
incorporating
bioactive
ceramics
growth
factors,
discussed,
focusing
improving
osteoconductivity,
osteoinductivity,
strength.
Recent
studies
integrating
these
components
into
techniques
optimize
porosity
biodegradability
presented.
Finally,
addresses
ongoing
issues,
difficulty
some
biomolecules
bioceramics
improved
clinical
translation.
comprehensive
overview
aims
provide
insight
future
directions
potential
solutions
overcoming
limitations
3D‐printed
Язык: Английский
Three-Dimensionally Printed Bionic Hydroxyapatite (HAp) Ceramic Scaffolds with Different Structures and Porosities: Strength, Biocompatibility, and Biomedical Application Potential
Materials,
Год журнала:
2024,
Номер
17(24), С. 6092 - 6092
Опубликована: Дек. 13, 2024
Bionic
bioceramic
scaffolds
are
essential
for
achieving
excellent
implant
properties
and
biocompatible
behavior.
In
this
study,
inspired
by
the
microstructure
of
natural
bone,
bionic
hydroxyapatite
(HAp)
ceramic
with
different
structures
(body-centered
cubic
(BCC),
face-centered
(FCC),
gyroid
Triply
Periodic
Minimal
Surfaces
(TPMSs))
porosities
(80
vol.%,
60
40
vol.%)
were
designed,
3D-printed,
characterized.
The
effects
structure
porosity
on
morphology,
mechanical
properties,
in
vitro
biocompatibility
HAp
studied
compared
each
other.
Interestingly,
scaffold
a
80
vol.%
TPMS
had
best
combination
compressive
strength
biocompatibility,
demonstrated
great
biomedical
application
potential
bone
repair.
We
hope
study
can
provide
reference
development
field
repair
engineering.
Язык: Английский