Advanced Science,
Journal Year:
2024,
Volume and Issue:
11(16)
Published: Feb. 13, 2024
Abstract
Underwater
adhesives
with
injectable,
organic
solvent‐free,
strong,
fast
adhesion,
and
hemostatic
properties
have
become
an
urgent
need
in
biomedical
field.
Herein,
a
novel
polyurethane
underwater
adhesive
(PUWA)
inspired
by
mussels
is
developed
utilizing
the
rapid
post‐cure
reaction
of
isocyanate
esterification
without
solvents.
The
PUWA
created
through
injectable
two
component
curing
process
A
(biocompatible
prepolymer)
B
(dopamine
modified
lysine
derivatives:
chain
extender‐LDA
crosslinker‐L
3
DA).
two‐component
cures
quickly
firmly
underwater,
impressive
bonding
strength
40
kPa
on
pork
skin
excellent
burst
pressure
394
mmHg.
Moreover,
exhibits
robust
adhesion
hostile
environments
acid,
alkali
saline
solutions.
Combined
biocompatibility
performance,
demonstrates
effectively
sealing
wounds
promoting
healing.
With
ability
to
bond
diverse
substrates
rapidly
strongly,
holds
significant
potential
for
application
both
industrial
fields.
Chemical Science,
Journal Year:
2023,
Volume and Issue:
14(12), P. 3091 - 3116
Published: Jan. 1, 2023
This
work
reviewed
the
new
progress
of
conductive
hydrogels
in
application
tissue
repair
and
provided
a
useful
reference
for
further
preparation
safer
more
efficient
engineering.
Gels,
Journal Year:
2023,
Volume and Issue:
9(2), P. 138 - 138
Published: Feb. 6, 2023
Wound
healing
is
a
long-term
and
complex
biological
process
that
involves
multiple
hemostasis,
inflammation,
proliferation,
remodeling
stages.
In
order
to
realize
comprehensive
systematic
wound
management,
appropriate
treatment
bio-adhesives
are
urgently
needed.
Hydrogel
have
excellent
properties
show
unique
remarkable
advantages
in
the
field
of
management.
This
review
begins
with
detailed
description
design
criteria
functionalities
ideal
hydrogel
for
healing.
Then,
recent
advances
polysaccharide-based
multifunctional
bio-adhesives,
which
involve
chitosan,
hyaluronic
acid,
alginate,
cellulose,
dextran,
konjac
glucomannan,
chondroitin
sulfate,
other
polysaccharides,
comprehensively
discussed.
Finally,
current
challenges
future
research
directions
proposed
stimulate
further
exploration
by
researchers.
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(15)
Published: Nov. 16, 2023
Developing
hydrogels
that
can
quickly
reach
deep
bleeding
sites,
adhere
to
wounds,
and
expand
stop
lethal
and/or
noncompressible
in
civil
battlefield
environments
remains
a
challenge.
Herein,
an
injectable,
antibacterial,
self-expanding,
self-propelling
hydrogel
bioadhesive
with
procoagulant
activity
rapid
gelation
is
reported.
This
combines
spontaneous
gas
foaming
Schiff
base
crosslinking
for
massive
hemorrhage.
Hydrogels
have
expansion
rate,
high
self-expanding
ratio,
excellent
antibacterial
activity,
antioxidant
efficiency,
tissue
adhesion
capacity.
In
addition,
good
cytocompatibility,
ability,
higher
blood
cell/platelet
than
commercial
combat
gauze
gelatin
sponge.
The
optimized
(OD-C/QGQL-A30)
exhibits
better
hemostatic
ability
sponge
rat
liver
femoral
artery
models,
rabbit
volumetric
loss
models
with/without
anticoagulant,
kidney
incision
site
not
visible.
Especially,
OD-C/QGQL-A30
rapidly
stops
the
bleedings
from
pelvic
area
of
rabbit,
swine
subclavian
vein
transection.
Furthermore,
has
biodegradability
biocompatibility,
accelerates
Methicillin-resistant
S.
aureus
(MRSA)-infected
skin
wound
healing.
opens
up
new
avenue
develop
hemostats
bleeding,
abdominal
organ
coagulation
lesions.
Materials & Design,
Journal Year:
2023,
Volume and Issue:
229, P. 111917 - 111917
Published: April 7, 2023
Timely
and
accurate
assessment
of
wounds
during
the
wound
healing
process
is
key
for
correct
diagnosis
treatment
decisions
repair.
However,
traditional
management
strategies
often
fail
to
provide
timely
information
on
status,
thereby
delaying
or
misleading
treatments.
Smart
dressings
that
enable
in
situ
real-time
monitoring
wound-related
biomarkers,
early
on-demand
adverse
events,
such
as
bacterial
infection
inflammation,
by
integrating
wearable
sensors,
advanced
drug
delivery
systems
wireless
communication
technology
have
recently
been
developed
could
improve
management.
In
this
review,
we
provided
an
overview
including
temperature,
pH,
uric
acid,
glucose,
reactive
oxygen
(ROS),
enzymes,
related
events
exiting
sensors
detecting
these
biomarkers
based
colorimetric,
fluorimetric
electrochemical
approaches.
Examples
smart
integrate
controllable
functions
triggered
both
endogenous
exogenous
stimuli,
all-in-one
dressing
capable
treatment,
major
challenges
exciting
opportunities
are
presented
comprehensively
discussed.
Materials Horizons,
Journal Year:
2023,
Volume and Issue:
11(1), P. 37 - 101
Published: Oct. 27, 2023
The
unique
network
characteristics
and
stimuli
responsiveness
of
supramolecular
hydrogels
have
rendered
them
highly
advantageous
in
the
field
wound
dressings,
showcasing
unprecedented
potential.
However,
there
are
few
reports
on
a
comprehensive
review
hydrogel
dressings
for
repair
hemostasis.
This
first
introduces
major
cross-linking
methods
hydrogels,
which
includes
hydrogen
bonding,
electrostatic
interactions,
hydrophobic
host-guest
metal
ligand
coordination
some
other
interactions.
Then,
we
advanced
materials
reported
recent
years
then
summarize
basic
principles
each
method.
Next,
classify
structures
before
outlining
their
forming
process
propose
potential
future
directions.
Furthermore,
also
discuss
raw
materials,
structural
design
principles,
material
used
to
achieve
functions
such
as
antibacterial
function,
tissue
adhesion,
substance
delivery,
anti-inflammatory
antioxidant
functions,
cell
behavior
regulation,
angiogenesis
promotion,
hemostasis
innovative
years.
Finally,
existing
problems
well
development
directions
strategy,
design,
discussed.
is
proposed
stimulate
further
exploration
by
researchers
future.
Advanced Functional Materials,
Journal Year:
2023,
Volume and Issue:
33(17)
Published: Feb. 1, 2023
Abstract
There
are
issues
and
challenges
in
treating
deep
burns
because
of
the
long
recovery
time,
frequent
dressing
changes,
wound
infection,
easy
to
form
scar
that
influence
aesthetics.
Besides,
some
specific
tissues
not
suitable
for
large
coverage
(e.g.,
face,
perineum).
Therefore,
an
ideal
burn
should
have
good
adhesion
properties
fit
effectively,
painless
quick
replacement,
resistant
accelerate
healing,
reduce
scarring
facilitate
monitoring
diagnosis.
Herein,
anti‐dehydration
rapid‐trigger
multifunctional
hydrogel
is
prepared
by
interface
reaction.
The
Pacrylamide‐Formylboronicacid‐Tannic
acid
(PAFT)
hydrogels
a
simple
method
on
elastomeric
membrane,
which
obtained
using
tannic
as
dynamic
cross‐linking
agent
with
3‐formylboronic
acrylamideunder
UV
light.
exhibits
strong
interfacial
(892
J
m
−2
±
65
),
rapidly
(2
min)
decreases
(to
180
20
)
when
presence
glucose
solution.
has
excellent
moisturizing
properties,
also
superior
antibacterial
hemostasis,
biocompatibility.
This
transparent
allowing
effective
observation
transformation
therapeutics.
Moreover,
PAFT
accelerates
healing
reduces
scars.