Electrospun Biomimetic Periosteum Promotes Diabetic Bone Defect Regeneration through Regulating Macrophage Polarization and Sequential Drug Release
ACS Biomaterials Science & Engineering,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 5, 2025
The
inadequate
vascularization
and
abnormal
immune
microenvironment
in
the
diabetic
bone
defect
region
present
a
significant
challenge
to
osteogenic
regulation.
Inspired
by
distinctive
characteristics
of
healing
staged
defects
structure–function
relationship
natural
periosteum,
we
fabricated
an
electrospun
bilayer
biomimetic
periosteum
(Bilayer@E)
promote
regeneration
defects.
Here,
inner
layer
was
using
coaxial
electrospinning
fibers,
with
shell
incorporating
zinc
oxide
nanoparticles
(ZnO
NPs)
core
containing
silicon
dioxide
(SiO2
mimicking
cambium
periosteum;
outer
consisted
randomly
aligned
fibers
loaded
deferoxamine
(DFO),
simulating
fibrous
finally,
epigallocatechin-3-gallate
(EGCG)
coated
onto
membrane
obtain
Bilayer@E.
presence
EGCG
on
Bilayer@E
surface
efficiently
triggers
phenotypic
transition
macrophages,
shifting
them
from
M1
proinflammatory
state
M2
anti-inflammatory
state.
Moreover,
sequential
release
ZnO
NPs,
DFO,
SiO2
NPs
exhibits
antimicrobial
while
coordinating
angiogenesis
promoting
mineralization
cells.
Importantly,
shows
strong
vivo
tissue
periosteal
properties
rats.
integration
drug
immunomodulation,
tailored
meet
specific
requirements
during
regeneration,
offers
new
insights
for
advancing
application
biomaterials
this
field.
Язык: Английский
A Narrative Review of Bioactive Hydrogel Microspheres: Ingredients, Modifications, Fabrications, Biological Functions, and Applications
Small,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 19, 2025
Abstract
Hydrogel
microspheres
are
important
in
regenerative
medicine
and
tissue
engineering,
acting
as
cargos
of
cells,
drugs,
growth
factors,
bio‐inks
for
3D
printing,
medical
devices.
The
antimicrobial
anti‐inflammatory
characteristics
hydrogel
good
treating
injured
tissues.
However,
the
biological
properties
should
be
modified
optimal
treatment
various
body
parts
with
different
physiological
biochemical
environments.
In
addition,
specific
preparation
methods
required
to
produce
customized
shapes
sizes
clinical
applications.
Herein,
advances
biomedical
applications
reviewed.
Synthesis
precursor
solutions,
manufacturing
methods,
strategies
enhancing
functions
these
described.
involvement
bioactive
repair
is
also
discussed.
This
review
anticipates
fostering
more
insights
into
design,
production,
application
biomedicine.
Язык: Английский
Metal-Free Antioxidant Nanozyme Incorporating Bioactive Hydrogel as an Antioxidant Scaffold for Accelerating Bone Reconstruction
Biomaterials,
Год журнала:
2025,
Номер
unknown, С. 123285 - 123285
Опубликована: Март 1, 2025
Язык: Английский
Advanced Bioresponsive Drug Delivery Systems for Promoting Diabetic Vascularized Bone Regeneration
ACS Biomaterials Science & Engineering,
Год журнала:
2024,
Номер
11(1), С. 182 - 207
Опубликована: Дек. 12, 2024
The
treatment
of
bone
defects
in
diabetes
mellitus
(DM)
patients
remains
a
major
challenge
since
the
diabetic
microenvironments
significantly
impede
regeneration.
Many
abnormal
factors
including
hyperglycemia,
elevated
oxidative
stress,
increased
inflammation,
imbalanced
osteoimmune,
and
impaired
vascular
system
microenvironment
will
result
high
rate
impaired,
delayed,
or
even
nonhealing
events
tissue.
Stimuli-responsive
biomaterials
that
can
respond
to
endogenous
biochemical
signals
have
emerged
as
effective
therapeutic
systems
treat
via
combination
microenvironmental
regulation
enhanced
osteogenic
capacity.
Following
natural
healing
processes,
coupling
angiogenesis
osteogenesis
by
advanced
bioresponsive
drug
delivery
has
proved
be
significant
approach
for
promoting
repair
DM.
In
this
Review,
we
systematically
summarized
mechanisms
strategies
DM-induced
healing,
outlined
design
systems,
highlighted
vascularization
Accordingly,
then
overview
recent
advances
developing
facilitate
vascularized
regeneration
remodeling
modulating
multiple
regenerative
cues.
Furthermore,
discuss
development
adaptable
with
unique
features
guiding
DM-associated
future.
Язык: Английский