Materials Today Bio,
Journal Year:
2022,
Volume and Issue:
18, P. 100522 - 100522
Published: Dec. 21, 2022
Extracellular
vesicles
(EVs)
are
a
collective
term
for
nanoscale
or
microscale
secreted
by
cells
that
play
important
biological
roles.
Mesenchymal
stem
class
of
with
the
potential
self-healing
and
multidirectional
differentiation.
In
recent
years,
numerous
studies
have
shown
EVs,
especially
those
mesenchymal
cells,
can
promote
repair
regeneration
various
tissues
and,
thus,
significant
in
regenerative
medicine.
However,
due
to
rapid
clearance
capacity
circulatory
system,
EVs
barely
able
act
persistently
at
specific
sites
target
tissues.
Hydrogels
good
biocompatibility
loose
porous
structural
properties
allow
them
serve
as
EV
carriers,
thereby
prolonging
retention
certain
areas
slowing
release
EVs.
When
needed
function
sites,
EV-loaded
hydrogels
stand
an
excellent
approach.
this
review,
we
first
introduce
sources,
roles,
extraction
characterization
methods
describe
their
current
application
status.
We
then
review
different
types
discuss
factors
influencing
abilities
carry
summarize
several
strategies
loading
into
characterizing
hydrogels.
Furthermore,
applications
tissue
repair.
This
article
concludes
summary
state
research
on
outlook
future
directions,
which
hope
will
provide
promising
ideas
researchers.
Materials Today Bio,
Journal Year:
2023,
Volume and Issue:
19, P. 100582 - 100582
Published: Feb. 16, 2023
Hydrogels
are
essential
biomaterials
due
to
their
favorable
biocompatibility,
mechanical
properties
similar
human
soft
tissue
extracellular
matrix,
and
repair
properties.
In
skin
wound
repair,
hydrogels
with
antibacterial
functions
especially
suitable
for
dressing
applications,
so
novel
hydrogel
dressings
have
attracted
widespread
attention,
including
the
design
of
components,
optimization
preparation
methods,
strategies
reduce
bacterial
resistance,
etc.
this
review,
we
discuss
fabrication
challenges
associated
crosslinking
methods
chemistry
materials.
We
investigated
advantages
limitations
(antibacterial
effects
mechanisms)
different
components
in
achieve
good
properties,
response
stimuli
such
as
light,
sound,
electricity
resistance.
Conclusively,
provide
a
systematic
summary
findings
(crosslinking
methods)
an
outlook
on
long-lasting
effects,
broader
spectrum,
diversified
forms,
future
development
prospects
field.
Advanced Science,
Journal Year:
2023,
Volume and Issue:
10(28)
Published: Aug. 6, 2023
Hydrogels
with
tailor-made
swelling-shrinkable
properties
have
aroused
considerable
interest
in
numerous
biomedical
domains.
For
example,
as
swelling
is
a
key
issue
for
blood
and
wound
extrudates
absorption,
the
transference
of
nutrients
metabolites,
well
drug
diffusion
release,
hydrogels
high
capacity
been
widely
applicated
full-thickness
skin
healing
tissue
regeneration,
delivery.
Nevertheless,
fields
adhesives
internal
soft-tissue
healing,
bioelectronics,
non-swelling
play
very
important
functions
owing
to
their
stable
macroscopic
dimension
physical
performance
physiological
environment.
Moreover,
negative
behavior
(i.e.,
shrinkage)
can
be
exploited
drive
noninvasive
closure,
achieve
resolution
enhancement
hydrogel
scaffolds.
In
addition,
it
help
push
out
entrapped
drugs,
thus
promote
release.
However,
there
still
has
not
general
review
constructions
applications
from
viewpoint
properties.
Therefore,
this
summarizes
tactics
employed
so
far
tailoring
applications.
And
relatively
comprehensive
understanding
current
progress
future
challenge
different
features
provided
potential
clinical
translations.
Advanced Materials,
Journal Year:
2023,
Volume and Issue:
36(21)
Published: Nov. 22, 2023
Abstract
Hydrogels
have
emerged
as
powerful
building
blocks
to
develop
various
soft
bioelectronics
because
of
their
tissue‐like
mechanical
properties,
superior
bio‐compatibility,
the
ability
conduct
both
electrons
and
ions,
multiple
stimuli‐responsiveness.
However,
hydrogels
are
vulnerable
damage,
which
limits
usage
in
developing
durable
hydrogel‐based
bioelectronics.
Self‐healing
aim
endow
with
property
repairing
specific
functions
after
failure,
thus
improving
durability,
reliability,
longevity.
This
review
discusses
recent
advances
self‐healing
hydrogels,
from
mechanisms,
material
chemistry,
strategies
for
properties
improvement
hydrogel
materials,
design,
fabrication,
applications
bioelectronics,
including
wearable
physical
biochemical
sensors,
supercapacitors,
flexible
display
devices,
triboelectric
nanogenerators
(TENGs),
implantable
etc.
Furthermore,
persisting
challenges
hampering
development
prospects
proposed.
is
expected
expedite
research
ACS Materials Letters,
Journal Year:
2023,
Volume and Issue:
5(7), P. 1787 - 1830
Published: May 26, 2023
Due
to
the
good
reliability
and
long-term
stability,
self-healing
hydrogels
have
emerged
as
promising
soft
materials
for
tissue
engineering,
smart
wearable
sensors,
bioelectronics,
energy
storage
devices.
The
mechanism
depends
on
reversible
chemical
or
physical
cross-linking
interactions.
Self-healing
with
fascinating
features
(including
mechanical
performances,
biocompatibility,
conductivity,
antibacterial
ability,
responsiveness,
etc.)
are
being
designed
developed
according
practical
application
requirements.
In
this
review,
recent
progress
in
their
synthesis
strategies
multiple
applications
is
summarized.
Their
involve
processes
a
combination
of
two.
include
flexible
strain
supercapacitors,
actuators,
adhesives,
wound
healing,
drug
delivery,
tumor
treatment,
3D
printing,
etc.
Finally,
current
challenges,
future
development,
opportunities
discussed.
Signal Transduction and Targeted Therapy,
Journal Year:
2024,
Volume and Issue:
9(1)
Published: July 1, 2024
The
applications
of
hydrogels
have
expanded
significantly
due
to
their
versatile,
highly
tunable
properties
and
breakthroughs
in
biomaterial
technologies.
In
this
review,
we
cover
the
major
achievements
potential
therapeutic
applications,
focusing
primarily
on
two
areas:
emerging
cell-based
therapies
promising
non-cell
modalities.
Within
context
cell
therapy,
discuss
capacity
overcome
existing
translational
challenges
faced
by
mainstream
therapy
paradigms,
provide
a
detailed
discussion
advantages
principal
design
considerations
for
boosting
efficacy
as
well
list
specific
examples
different
disease
scenarios.
We
then
explore
drug
delivery,
physical
intervention
therapies,
other
areas
(e.g.,
bioadhesives,
artificial
tissues,
biosensors),
emphasizing
utility
beyond
mere
delivery
vehicles.
Additionally,
complement
our
latest
progress
clinical
application
outline
future
research
directions,
particularly
terms
integration
with
advanced
biomanufacturing
This
review
aims
present
comprehensive
view
critical
insights
into
selection
both
tailored
meet
requirements
diverse
diseases
situations.
ACS Applied Materials & Interfaces,
Journal Year:
2023,
Volume and Issue:
15(14), P. 17562 - 17576
Published: March 6, 2023
Bioactive
hydrogels
self-assembled
from
naturally
occurring
herbal
small
molecules
are
attracting
growing
interest
for
applications
in
wound
healing,
due
to
their
versatile
intrinsic
biological
activities,
excellent
biocompatibility,
as
well
facile,
sustainable,
and
eco-friendly
processes.
However,
the
development
of
supramolecular
herb
with
sufficient
strength
multifunctionality
an
ideal
dressing
clinical
practice
remains
a
challenge.
In
this
work,
inspired
by
efficient
clinic
therapy
directed
self-assembly
natural
saponin
glycyrrhizic
acid
(GA),
we
create
novel
GA-based
hybrid
hydrogel
promote
full-thickness
healing
bacterial-infected
healing.
This
possesses
stability
mechanical
performance
multifunctional
properties,
including
injectable,
shape-adaptation
remodeling,
self-healing,
adhesive
abilities.
is
attributed
hierarchical
dual-network
that
comprises
hydrogen-bond
fibrillar
network
aldehyde-contained
GA
(AGA)
dynamic
covalent
through
Schiff
base
reaction
between
AGA
biopolymer
carboxymethyl
chitosan
(CMC).
Notably,
benefiting
inherent
strong
activity
GA,
AGA-CMC
exhibits
unique
significant
anti-inflammation
effects
antibacterial
ability,
especially
toward
Gram-positive
Staphylococcus
aureus
(S.
aureus).
vivo
experiments
demonstrate
promotes
uninfected
skin
S.
aureus-infected
enhancing
formation
granulation
tissue,
facilitating
collagen
deposition,
reducing
bacterial
infection,
downregulating
inflammatory
response.
study
highlights
design
new
bioactive
drug-food
homologous
molecules,
which
can
serve
promising
wound-healing
biomedical
applications.
Advanced Materials,
Journal Year:
2023,
Volume and Issue:
36(6)
Published: Nov. 8, 2023
Abstract
Gel
materials
are
appealing
due
to
their
diverse
applications
in
biomedicine,
soft
electronics,
sensors,
and
actuators.
Nevertheless,
the
existing
synthetic
gels
often
plagued
by
feeble
network
structures
inherent
defects
associated
with
solvents,
which
compromise
mechanical
load‐bearing
capacity
cast
persistent
doubts
about
reliability.
Herein,
combined
attractive
deep
eutectic
solvent
(DES),
a
stepwise‐enhanced
strategy
is
presented
fabricate
ultrarobust
eutectogels.
It
focuses
on
continuous
modulation
optimization
of
polymer
networks
through
complementary
annealing
exchange
processes,
drives
progressive
increase
both
quantity
mass
interconnected
chains
at
microscopic
scale,
hence
contributing
evolutionary
enhancement
structure.
The
resultant
eutectogel
exhibits
superb
properties,
including
record‐breaking
strength
(31.8
MPa),
toughness
(76.0
MJ
m
−3
),
Young's
modulus
(25.6
together
exceptional
resistance
ability
tear
crack
propagation.
Moreover,
this
able
be
further
programmed
photolithography
situ
create
patterned
for
imparting
specific
functionalities.
Enhanced
its
broad
applicability
various
DES
combinations,
poised
serve
as
crucial
template
methodology
future
development
robust
gels.
Molecules,
Journal Year:
2023,
Volume and Issue:
28(6), P. 2766 - 2766
Published: March 19, 2023
Over
the
last
decade,
efforts
have
been
oriented
toward
development
of
suitable
gels
for
3D
printing,
with
controlled
morphology
and
shear-thinning
behavior
in
well-defined
conditions.
As
a
multidisciplinary
approach
to
fabrication
complex
biomaterials,
bioprinting
combines
cells
biocompatible
materials,
which
are
subsequently
printed
specific
shapes
generate
structures
regenerative
medicine
or
tissue
engineering.
A
major
interest
is
devoted
printing
biomimetic
materials
structural
fidelity
after
their
fabrication.
Among
some
requirements
imposed
bioinks,
such
as
biocompatibility,
nontoxicity,
possibility
be
sterilized,
nondamaging
processability
represents
critical
issue
stability
functioning
constructs.
The
challenges
field
printable
mimic
at
different
length
scales
existing
nature
reproduce
functions
biological
systems.
Thus,
careful
investigation
rheological
characteristics
allows
fine-tuning
material
properties
that
manufactured
targeted
applications.
fluid-like
solid-like
conditions
similar
those
encountered
additive
manufacturing
can
monitored
through
viscoelastic
parameters
determined
shear
network
strength,
shear-thinning,
yield
point,
thixotropy
govern
bioprintability.
An
assessment
these
features
provides
significant
insights
design
characterization
gels.
This
review
focuses
on
bioinspired
survey
cutting-edge
research
developing
manufacturing.