Advanced Functional Materials,
Год журнала:
2021,
Номер
31(52)
Опубликована: Сен. 21, 2021
Abstract
In
the
booming
development
of
flexible
electronics
represented
by
electronic
skins,
soft
robots,
and
human–machine
interfaces,
3D
printing
hydrogels,
an
approach
used
biofabrication
community,
is
drawing
attention
from
researchers
working
on
hydrogel‐based
stretchable
ionotronic
devices.
Such
devices
can
greatly
benefit
excellent
patterning
capability
in
three
dimensions,
as
well
free
design
complexity
easy
upscale
potential.
Compared
to
advanced
stage
bioprinting,
hydrogel
its
infancy
due
difficulty
balancing
printability,
ionic
conductivity,
shape
fidelity,
stretchability,
other
functionalities.
this
review,
a
guideline
provided
how
utilize
power
building
high‐performance
mainly
materials’
point
view,
highlighting
systematic
quality,
performance
printed
Various
methods
for
hydrogels
are
introduced,
then
ink
principles,
functions,
such
elastic
self‐healing
ability,
device
(e.g.,
sensors,
shape‐morphing
actuators,
electroluminescent
devices,
electrochemical
biosensors)
performances
discussed.
conclusion,
perspectives
future
directions
exciting
field
presented.
Advanced Materials,
Год журнала:
2021,
Номер
33(24)
Опубликована: Май 6, 2021
Abstract
Marine
animals,
such
as
leptocephalus
and
jellyfish,
can
sense
external
stimuli
achieve
optical
camouflage
in
the
aquatic
environment.
Fabricating
an
intelligent
soft
sensor
that
mimic
capabilities
of
transparent
marine
animals
function
underwater
enable
transformative
applications
various
novel
fields.
However,
previously
reported
sensors
struggle
to
meet
requirements
adhesion,
self‐healing
ability,
transparency,
stable
conductivity
Herein,
high‐performance
ionogels
by
virtue
ion–dipole
ion–ion
interactions
between
fluorine‐rich
poly(ionic
liquid)
ionic
liquid
are
designed.
The
hydrophobic
dynamic
viscoelastic
networks
provide
excellent
properties
for
ionogels,
including
adjustable
mechanical
properties,
adhesiveness,
conductivity,
3D
printability.
A
mechanically
compliant
visually
invisible
based
on
ionogel
is
developed.
This
camouflage,
human‐body‐motion
detection,
barrier‐free
communication
contactless
sensing
mechanism
changing
electron
transfer
pathway
proposed.
Several
interesting
functions,
detection
water
environment
changes,
recognition
objects,
delivery
information,
even
identification
human
standing
posture
be
realized.
Importantly,
avoid
fatigue
physical
damage
process.
Materials Horizons,
Год журнала:
2020,
Номер
7(11), С. 2882 - 2902
Опубликована: Янв. 1, 2020
The
evolution
of
self-healing
polymers
has
resulted
in
a
myriad
healing
designs
that
have
given
way
to
complex
systems
capable
supporting
multiple
cycles,
among
other
features.
This
progression
enables
us
propose
the
implementation
timeline
classifies
generations
based
on
mechanism,
and
correlated
with
historical
development.
first
generation
employed
encapsulation
external
agents;
second
one,
intrinsic
mechanisms,
applied
reversible
chemistries;
third
was
inspired
by
natural
examples
such
as
plants
human
skin,
which
agent
is
embedded
vascular
networks.
Despite
great
efforts
and,
few
exceptions,
high
efficiency
mechanical
performance
are
not
common.
To
improve
this
situation,
combination
different
mechanisms
currently
emerging,
giving
birth
fourth
materials.
article,
focused
elastomers,
provides
rigorous
overview
new
generation,
covalent
bonds
non-covalent
interactions
an
optimal
balance
between
repairability.
concept
leads
materials
real
commercial
potential
functional
applications,
coatings,
sensors,
actuators,
controlled
release
drugs,
seals,
gaskets,
hoses,
even
high-performance
applications
tires
railway
components.
Chemical Reviews,
Год журнала:
2022,
Номер
123(2), С. 701 - 735
Опубликована: Дек. 28, 2022
Self-healing
materials
open
new
prospects
for
more
sustainable
technologies
with
improved
material
performance
and
devices'
longevity.
We
present
an
overview
of
the
recent
developments
in
field
intrinsically
self-healing
polymers,
broad
class
based
mostly
on
polymers
dynamic
covalent
noncovalent
bonds.
describe
current
models
mechanisms
discuss
several
examples
systems
different
types
bonds,
from
various
hydrogen
bonds
to
The
advances
indicate
that
most
intriguing
results
are
obtained
have
combined
These
demonstrate
high
toughness
along
a
relatively
fast
rate.
There
is
clear
trade-off
relationship
between
rate
mechanical
modulus
materials,
we
propose
design
principles
toward
surpassing
this
trade-off.
also
applications
summarize
challenges
field.
This
review
intends
provide
guidance
intrinsic
required
properties.
Advanced Functional Materials,
Год журнала:
2020,
Номер
31(4)
Опубликована: Окт. 9, 2020
Abstract
Developing
an
autonomous
room
temperature
self‐healing
supramolecular
polyurethane
(PU)
with
toughness
and
stiffness
remains
a
great
challenge.
Herein,
novel
concept
that
utilizes
T‐shaped
chain
extender
double
amide
hydrogen
bonds
in
side
to
extend
PU
prepolymers
construct
highly
stiff
tough
integrated
functions
is
reported.
Mobile
side‐chain
H‐bonds
afford
large
flexibility
modulate
the
of
PUs
ranging
from
elastomer
(105.87
MPa
Young's
modulus,
27
kJ
m
−2
tearing
energy),
solvent‐free
hot‐melt
adhesive,
coating.
The
dynamic
multiple
self‐healability
at
(25
°
C).
Due
rapid
reconstruction
bonds,
this
adhesive
demonstrates
high
adhesion
strength,
fast
curing,
reusability,
long‐term
adhesion,
excellent
low‐temperature
resistance.
Intriguingly,
emits
intrinsic
blue
fluorescence
presumably
owing
aggregation‐induced
emission
tertiary
amine
domains
induced
by
H‐bonds.
explored
as
counterfeit
ink
coated
on
predesigned
pattern,
which
visible‐light
invisible
UV‐light
visible.
This
work
represents
universal
facile
approach
fabricate
supertough
tailorable
extension
H‐bonding
extenders.
Advanced Functional Materials,
Год журнала:
2020,
Номер
31(39)
Опубликована: Дек. 31, 2020
Abstract
Virtual
reality
(VR)
and
augmented
(AR)
systems
have
garnered
recent
widespread
attention
due
to
increased
accessibility,
functionality,
affordability.
These
sense
user
inputs
typically
provide
haptic,
audio,
visual
feedback
blend
interactive
virtual
environments
with
the
real
world
for
an
enhanced
or
simulated
experience.
With
applications
ranging
from
immersive
entertainment,
teleoperation,
physical
therapy,
further
development
of
this
technology
has
potential
impact
across
multiple
disciplines.
However,
VR/AR
devices
still
face
critical
challenges
that
hinder
integration
into
everyday
life
additional
applications;
namely,
rigid
cumbersome
form
factor
current
is
incompatible
dynamic
movements
pliable
limbs
human
body.
Recent
advancements
in
field
soft
materials
are
uniquely
suited
solutions
challenge.
Devices
fabricated
flexible
elastic
bio‐compatible
significantly
greater
compatibility
body
could
lead
a
more
natural
This
review
reports
state‐of‐the‐art
experimental
studies
wearable
sensing
haptic
applications,
explores
emerging
technologies
on‐body
devices,
identifies
future
opportunities
toward
seamless
world.
Advanced Materials,
Год журнала:
2022,
Номер
34(16)
Опубликована: Фев. 1, 2022
Self-healing
materials
behave
with
irreplaceable
advantages
in
biomimetic
intelligent
robots
(BIR)
for
avoiding
or
reducing
safety
hazards
and
economic
losses
from
accidental
damage
during
service.
However,
the
self-healing
ability
is
unreservedly
lost
even
becomes
rigid
fragile
cryogenic
environment
where
BIR
are
precisely
needed.
Here,
authors
report
a
versatile
ionic
hydrogel
fast
ability,
ultra-stretchability,
stable
conductivity,
at
-80
°C.
The
systematically
optimized
to
improve
hydrogen-bonded
network
nanostructure,
coordinated
achieving
quick
within
10
min,
large
deformation
tolerance
of
over
7000%,
superior
conductivity
11.76
S
cm-1
anti-freezing
which
difficult
obtain
simultaneously.
Such
provides
new
opportunities
artificial
electronic
devices
harsh
environments.
As
prospective
application,
they
fabricate
an
nerve
fiber
by
mimicking
structure
functions
myelinated
axon,
exhibiting
property
potential-gated
signal
transmission.
This
integrated
into
robot
demonstrating
real-time
high
fidelity
throughput
information
interaction
under
big
temperature.
bionic
device
will
bring
pioneering
open
broad
application
scenario
extreme
conditions.
Materials Horizons,
Год журнала:
2021,
Номер
8(8), С. 2238 - 2250
Опубликована: Янв. 1, 2021
Molecular
engineering
of
a
microphase
separated
structure
to
convert
weak,
soft
and
self-healing
polymer
strong,
tough,
resilient,
healable
poly(urethane–urea)
elastomer,
which
is
in
great
demand
for
transparent
protection
engineering.
