Advanced Functional Materials,
Год журнала:
2024,
Номер
34(23)
Опубликована: Янв. 7, 2024
Abstract
The
incidence
of
large
bone
and
articular
cartilage
defects
caused
by
traumatic
injury
is
increasing
worldwide;
the
tissue
regeneration
process
for
these
injuries
lengthy
due
to
limited
self‐healing
ability.
Endogenous
bioelectrical
phenomenon
has
been
well
recognized
play
an
important
role
in
homeostasis
regeneration.
Studies
have
reported
that
electrical
stimulation
(ES)
can
effectively
regulate
various
biological
processes
holds
promise
as
external
intervention
enhance
synthesis
extracellular
matrix,
thereby
accelerating
Hence,
electroactive
biomaterials
considered
a
biomimetic
approach
ensure
functional
recovery
integrating
physiological
signals,
including
electrical,
biochemical,
mechanical
signals.
This
review
will
discuss
endogenous
bioelectricity
tissue,
effects
ES
on
cellular
behaviors.
Then,
recent
advances
materials
their
applications
are
systematically
overviewed,
with
focus
advantages
disadvantages
repair
performances
modulation
cell
fate.
Finally,
significance
mimicking
electrophysiological
microenvironment
target
emphasized
future
development
challenges
strategies
proposed.
Molecular Catalysis,
Год журнала:
2024,
Номер
556, С. 113820 - 113820
Опубликована: Фев. 12, 2024
Applying
mechanical
stress
to
a
material
with
piezoelectric
characteristics
can
generate
piezo-potential,
which
manifests
as
substantial
built-in
electric
field.
This
field
has
been
demonstrated
serve
potent
means
for
altering
the
energy
of
charges
or
facilitating
movement
both
electrons
and
holes.
BiFeO3
(BFO)
have
garnered
significant
interest
class
layered
nanomaterials,
is
appealing
in
various
applications
primarily
due
their
exceptional
properties,
such
abundance,
photoelectric
property,
biosafety,
photocatalysis
photothermal
conversion.
Here,
brief
review
BFO-based
nanomaterials
based
on
recent
research
progress
provided,
mainly
covering
photocatalytic
performance
it
biological
area.
In
this
review,
we
systematically
summarized
advances
its
surface
characteristics,
including
facet
engineering,
doping,
morphology
control,
vacancy
heterojunction,
others,
are
well-suited
photocatalysis,
antibacterial
treatments,
photodynamic
therapy,
other
applications.
Challenges
stem
from
complex
interactions
between
light,
systems
discussed,
light
absorption
range,
charge
carrier
dynamics,
ROS
generation
stability,
durability,
pathways.
provides
insights
into
how
nanomaterial
design,
careful
optimization
lead
development
efficient
biocompatible
photocatalysts
broad
potential
different
fields.
Journal of Composites Science,
Год журнала:
2024,
Номер
8(8), С. 329 - 329
Опубликована: Авг. 20, 2024
Bismuth
ferrite
(BiFeO3,
BFO)
is
one
of
the
few
single-phase
crystalline
compounds
exhibiting
strong
multiferroic
properties
at
room
temperature,
which
makes
it
promising
for
use
in
various
fields
science
and
technology.
The
remarkable
characteristics
BFO
nanoscale
position
as
a
compelling
candidate
enhancing
functionalities
polymeric
nanocomposite
materials.
In
this
study,
we
explore
fabrication
polyvinylidene
fluoride
(PVDF)
nanocomposites
with
variable
content
nanopowders
(0,
5,
10,
15,
20,
25
wt%)
by
solution
casting
form
thin
films
thickness
~60
µm.
Our
findings
reveal
that
presence
nanoparticles
slightly
facilitates
formation
β-
γ-phases
PVDF,
known
their
enhanced
piezoelectric
properties,
thereby
potentially
expanding
utility
PVDF-based
materials
sensors,
actuators,
energy
harvesting
devices.
On
other
hand,
increase
filler
concentration
leads
to
enlarged
spherulite
diameter
porosity
well
an
above
20
wt%
resulting
decrease
degree
crystallinity.
structural
changes
surface
were
found
hydrophobicity
surface.
Magnetometry
indicates
magnetic
are
influenced
nanoparticle
saturation
magnetization
~295
K
ranging
from
~0.08
emu/g
~0.8
samples
lowest
higher
content,
respectively.
