Biomaterials Science,
Год журнала:
2023,
Номер
11(7), С. 2266 - 2276
Опубликована: Янв. 1, 2023
Although
the
main
function
of
skin
is
to
act
as
a
protective
barrier
against
external
factors,
it
indeed
an
extremely
vulnerable
tissue.
Skincare,
regardless
wound
type,
requires
effective
treatments
prevent
bacterial
infection
and
local
inflammation.
The
complex
biological
roles
displayed
by
hyaluronic
acid
(HA)
during
healing
process
have
made
this
multifaceted
polysaccharide
alternative
biomaterial
prepare
dressings.
Therefore,
herein,
we
present
most
advanced
research
undertaken
engineer
conductive
interactive
hydrogels
based
on
HA
dressings
that
enhance
tissue
regeneration
either
through
electrical
stimulation
(ES)
or
displaying
multifunctional
performance.
First,
briefly
introduce
reader
effect
ES
promoting
why
has
become
vogue
agent.
Then,
selection
systems,
chosen
according
their
relevance,
presented.
Special
care
been
taken
highlight
those
recently
reported
works
(mainly
from
last
3
years)
with
enhanced
scalability
biomimicry.
By
doing
that,
turned
critical
eye
field
considering
what
major
challenges
must
be
overcome
for
these
systems
real
commercial,
clinical,
other
translational
impact.
Advanced Materials,
Год журнала:
2023,
Номер
36(21)
Опубликована: Ноя. 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 Applied Materials & Interfaces,
Год журнала:
2022,
Номер
14(40), С. 45869 - 45879
Опубликована: Сен. 27, 2022
Underwater
adhesion
plays
an
essential
role
in
soft
electronics
for
the
underwater
interface.
Although
hydrogel-based
are
of
great
interest,
because
their
versatility,
water
molecules
prevent
hydrogels
from
adhering
to
substrates,
thus
bottlenecking
further
applications.
Herein,
inspired
by
barnacle
proteins,
MXene/PHMP
with
strong
repeatable
developed
through
random
copolymerization
2-phenoxyethyl
acrylate,
2-methoxyethyl
and
N-(2-hydroxyethyl)
acrylamide
presence
MXene
nanosheets.
The
mechanically
tough
(elastic
modulus
32
kPa,
fracture
stress
0.11
MPa),
acrylate
(PEA)
aromatic
groups
endows
hydrogel
nonswelling
property
prevents
invading
adhesive
interface,
rendering
outstanding
behavior
toward
various
substrates
(including
glass,
iron,
polyethylene
terephthalate
(PET),
porcine).
Besides,
dynamic
physical
interactions
allow
instant
adhesion.
Furthermore,
exhibit
a
high
conductivity
(0.016
S/m),
fast
responsiveness,
superior
sensitivity
as
strain
sensor
(gauge
factor
=
7.17
at
200%-500%
strain)
pressure
(0.63
kPa-1
0-70
kPa).
applications
bionic
sensors
have
been
demonstrated,
such
human
motion,
sensing,
holding
objects.
It
is
anticipated
that
extend
electronics.
Advanced Functional Materials,
Год журнала:
2023,
Номер
33(41)
Опубликована: Июнь 9, 2023
Abstract
Due
to
their
intrinsic
flexibility,
tunable
conductivity,
multiple
stimulus‐response,
and
self‐healing
ability,
ionic
conductive
hydrogels
have
drawn
significant
attention
in
flexible/wearable
electronics.
However,
challenges
remain
because
traditional
inevitably
faced
the
problems
of
losing
flexibility
conductivity
inner
water
loss
when
exposed
ambient
environment.
Besides,
inside
hydrogel
will
freeze
at
icing
temperatures,
making
device
hard
fragile.
As
a
promising
alternative,
organogels
attracted
wide
they
can,
some
extent,
overcome
above
drawbacks.
Herein,
kind
organogel
conductor
(MOIC)
by
self‐polymerization
reaction
is
involved,
which
super
stretchable,
anti‐drying,
anti‐freezing.
Meanwhile,
it
can
still
maintain
high
mechanical
stability
after
alternately
loading/unloading
strain
600%
for
600
s
(1800
cycles).
Using
this
MOIC,
high‐performance
triboelectric
nanogenerator
(TENG)
constructed
(MOIC‐TENG)
harvest
small
energy
even
MOIC
electrode
underwent
an
extremely
low
temperature.
In
addition,
multifunctional
sensors
(strain
sensor,
piezoresistive
tactile
sensor)
are
realized
monitor
human
motions
real
time,
recognize
different
materials
effect.
This
study
demonstrates
candidate
material
electronics
such
as
electronic
skin,
flexible
sensors,
human‐machine
interfaces.
