Advanced Materials,
Год журнала:
2024,
Номер
36(41)
Опубликована: Авг. 13, 2024
Abstract
Smart
actuators
hold
great
potential
in
soft
robotics
and
sensors,
but
their
movement
at
the
fluid
interface
is
less
understood
controlled,
hindering
performances
applications
complicated
fluids.
Here
an
ethanol‐containing
polyelectrolyte
actuator
prepared
that
demonstrates
excellent
actuating
performance
via
Marangoni
effect.
These
exhibit
enduring
(17
min),
repeatable
(50
cycles),
autonomous
motion
on
water
surface.
More
importantly,
of
are
dependent
shapes.
Polygonal
with
more
edges
round
attached
to
walls
containers,
while
few
move
randomly.
On
basis
this
property,
circular
can
pass
through
pipe
bends
S‐shaped
complex
geometry.
unique
advantages
lend
successful
wireless
sensing
(standard
0–5
V
level
signals)
for
locating
obstructions
inside
invisible
pipes
continuous
energy
harvesting
(7700
nC
per
cycle)
micro
mechanical
energy.
Advanced Functional Materials,
Год журнала:
2023,
Номер
33(51)
Опубликована: Сен. 8, 2023
Abstract
Eutectogels
are
emerging
as
an
appealing
soft
conductor
for
self‐powered
sensing
and
the
next
generation
of
flexible
human–computer
interactive
devices
owing
to
their
inherent
mechanical
elasticity
high
ionic
conductivity.
However,
it
still
remains
a
challenge
simultaneously
achieve
multi‐functional
multi‐response
integrations
through
facile
sustainable
approach.
Herein,
self‐healing,
environment
tolerant,
intrinsically
conductive,
recyclable
eutectogel
with
multiple
responses
is
developed
via
one‐step
solar‐initiated
polymerization
deep
eutectic
solvents
(DESs)
liquids
(ILs).
Abundant
hydrogen
bonds
ion‐dipole
interactions
impart
eutectogels
strength
(8.8
MPa),
ultra‐stretchability
(>1100%),
strong
self‐adhesion
(≈12
recyclability,
autonomously
self‐healing
ability.
Furthermore,
conductive
versatile
sensations
on
strain,
temperature,
humidity
can
serve
wearable
sensors
wireless
motion
recognition
interaction
control.
More
importantly,
eutectogel‐assembled
single‐electrode
triboelectric
nanogenerator
(TENG)
exhibits
extreme
environment‐tolerant
fast
self‐healable
properties
that
contribute
maintaining
excellent
stable
electrical
outputs
in
wide
work
temperature
range
(approximately
−40–60
°C),
which
appear
be
promising
electronics
environmental
adaptability.
Advanced Materials,
Год журнала:
2024,
Номер
36(23)
Опубликована: Март 7, 2024
Abstract
Fractocohesive
length,
defined
as
the
ratio
of
fracture
toughness
to
work
fracture,
measures
sensitivity
materials
in
presence
flaws.
The
larger
fractocohesive
more
flaw‐tolerant
and
crack‐resistant
hydrogel.
For
synthetic
soft
materials,
length
is
short,
often
on
scale
1
mm.
Here,
highly
flaw‐insensitive
(HFI)
single‐network
hydrogels
containing
an
entangled
inhomogeneous
polymer
network
widely
distributed
chain
lengths
are
designed.
HFI
demonstrate
a
centimeter‐scale
2.21
cm,
which
highest
ever
recorded
for
hydrogels,
unprecedented
≈13
300
J
m
−2
.
uncommon
flaw
insensitivity
results
from
inelastic
crack
blunting
inherent
network.
When
hydrogel
stretched,
large
number
short
chains
break
while
coiled
long
can
disentangle,
unwind,
straighten,
producing
deformation
that
substantially
blunts
tip
plastic
manner,
thereby
deconcentrating
crack‐tip
stresses
blocking
extension.
design
strategy
applicable
various
such
polyacrylamide
poly(N,N‐dimethylacrylamide)
enables
development
composites.
Advanced Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 7, 2025
Abstract
Leech
locomotion,
characterized
by
alternating
sucker
attachment
and
body
contraction
provides
high
adaptability
stability
on
complex
terrains.
Herein,
a
leech‐inspired
triboelectric
soft
robot
is
proposed
for
the
first
time,
capable
of
amphibious
movement,
climbing,
load‐carrying
crawling.
A
high‐performance
bionic
system
developed
to
drive
control
electro‐responsive
robots.
Its
core
components
include:
i)
(LSR)
made
from
segmented
dielectric
elastomer
muscles.
ii)
The
produces
anisotropic
frictional
forces.
iii)
multi‐channel
high‐voltage
output
nanogenerator
(HDC‐TENG)
effectively
drives
LSR.
iv)
unit
adapted
HDC‐TENG
enables
flexible
LSR
control.
Using
scalable
structure
muscles
achieve
maximum
crawling
speed
0.39
lengths
per
minute
land
(45
mm
min
−1
)
0.22
in
liquid
(30.5
).
It
can
also
carry
payload
11.55
grams
acrylic
while
This
research
sustainable
promising
new
solution
self‐powered
energy
sources
suitable
Nature Communications,
Год журнала:
2023,
Номер
14(1)
Опубликована: Июль 17, 2023
Inspired
by
the
flexible
joints
of
humans,
actuators
containing
soft
have
been
developed
for
various
applications,
including
grippers,
artificial
muscles,
and
wearable
devices.
However,
integrating
multiple
microjoints
into
robots
at
micrometer
scale
to
achieve
multi-deformation
modalities
remains
challenging.
Here,
we
propose
a
two-in-one
femtosecond
laser
writing
strategy
fabricate
composed
hydrogel
metal
nanoparticles,
develop
multi-joint
microactuators
with
(>10),
requiring
short
response
time
(30
ms)
low
actuation
power
(<10
mW)
deformation.
Besides,
independent
joint
deformation
control
linkage
deformation,
co-planar
spatial
linkage,
enables
microactuator
reconstruct
variety
complex
human-like
modalities.
Finally,
as
proof
concept,
collection
microcargos
different
locations
is
achieved
double-joint
micro
robotic
arm.
Our
will
bring
many
potential
application
opportunities
in
microcargo
collection,
microfluid
operation,
cell
manipulation.
Advanced Functional Materials,
Год журнала:
2023,
Номер
34(35)
Опубликована: Авг. 22, 2023
Abstract
Soft
robotics,
an
emerging
field
that
focuses
on
the
development
of
robots
utilizing
soft,
flexible,
and
deformable
materials,
is
revolutionizing
traditional
robotics
(reliant
rigid
materials
motors)
broadening
its
range
applications
potential
uses.
In
addition,
by
emulating
structure,
function,
characteristics
biological
systems,
bioinspired
are
facilitating
significant
progress
in
a
diverse
array
soft
robotic
applications.
This
review
offers
overview
employed
exploring
their
applications,
challenges,
future
research
directions.
For
intuitive
understanding,
based
primary
abilities
required
habitats
(terrestrial,
aquatic,
aerial)
animals
plants
they
mimic
categorized.
Furthermore,
real‐world
developed
everyday
human
life
presented.
The
novel
category
classification
comprehensive
analysis
presented
this
provide
insights
into
systems
with
to
transform
various
industries
enhance
quality
life.
Abstract
Plants
can
autonomously
adjust
their
growth
direction
based
on
the
gravitropic
response
to
maximize
energy
acquisition,
despite
lacking
nerves
and
muscles.
Endowing
soft
robots
with
gravitropism
may
facilitate
development
of
self‐regulating
systems
free
electronics,
but
remains
elusive.
Herein,
acceleration‐regulated
actuators
are
described
that
respond
gravitational
field
by
leveraging
unique
fluidity
liquid
metal
in
its
self‐limiting
oxide
skin.
The
actuator
is
obtained
magnetic
printing
fluidic
heater
circuit
a
thermoresponsive
crystal
elastomer.
Joule
heat
gravity‐regulated
resistance
be
programmed
changing
actuator's
pose
induce
flow
metal.
bending
degree
dynamic
interaction
between
thermomechanical
gravity.
A
gravity‐interactive
gripper
also
created
controllable
grasping
releasing
rotating
actuator.
Moreover,
it
demonstrated
self‐regulated
oscillation
motion
achieved
interfacing
monostable
tape
spring,
allowing
electronics‐free
control
bionic
walker.
This
work
paves
avenue
for
metal‐based
reconfigurable
electronics
perceive
gravity
or
acceleration.
Chemical Reviews,
Год журнала:
2024,
Номер
124(18), С. 10435 - 10508
Опубликована: Сен. 16, 2024
The
mechanical
properties
of
polymer
gels
devote
to
emerging
devices
and
machines
in
fields
such
as
biomedical
engineering,
flexible
bioelectronics,
biomimetic
actuators,
energy
harvesters.
Coupling
network
architectures
interactions
has
been
explored
regulate
supportive
characteristics
gels;
however,
systematic
reviews
correlating
mechanics
interaction
forces
at
the
molecular
structural
levels
remain
absent
field.
This
review
highlights
engineering
gel
a
comprehensive
mechanistic
understanding
regulation.
Molecular
alters
architecture
manipulates
functional
groups/moieties
level,
introducing
various
permanent
or
reversible
dynamic
bonds
dissipative
energy.
usually
uses
monomers,
cross-linkers,
chains,
other
additives.
Structural
utilizes
casting
methods,
solvent
phase
regulation,
mechanochemistry,
macromolecule
chemical
reactions,
biomanufacturing
technology
construct
tailor
topological
structures,
heterogeneous
modulus
compositions.
We
envision
that
perfect
combination
may
provide
fresh
view
extend
exciting
new
perspectives
this
burgeoning
also
summarizes
recent
representative
applications
with
excellent
properties.
Conclusions
are
provided
from
five
aspects
concise
summary,
mechanism,
biofabrication
upgraded
applications,
synergistic
methodology.
Proceedings of the National Academy of Sciences,
Год журнала:
2024,
Номер
121(20)
Опубликована: Май 6, 2024
Soft
robots
often
draw
inspiration
from
nature
to
navigate
different
environments.
Although
the
inching
motion
and
crawling
of
caterpillars
have
been
widely
studied
in
design
soft
robots,
steering
with
local
bending
control
remains
challenging.
To
address
this
challenge,
we
explore
modular
origami
units
which
constitute
building
blocks
for
mimicking
segmented
caterpillar
body.
Based
on
concept,
report
a
Kresling
robot
enabled
by
electrothermal
actuation.
A
compact
lightweight
structure
is
designed,
fabricated,
characterized
integrated
thermal
bimorph
actuators
consisting
liquid
crystal
elastomer
polyimide
layers.
With
reprogrammable
actuation,
multiunit
caterpillar-inspired
composed
both
active
passive
developed
bidirectional
locomotion
precise
curvature
control.
We
demonstrate
an
robotic
module
picking
up
cargo
assembling
another
achieve
function.
The
concept
can
provide
insight
into
future
that
grow,
repair,
enhance
functionality.
Asian Journal of Pharmaceutical Sciences,
Год журнала:
2024,
Номер
19(3), С. 100911 - 100911
Опубликована: Апрель 14, 2024
Precision
therapy
has
become
the
preferred
choice
attributed
to
optimal
drug
concentration
in
target
sites,
increased
therapeutic
efficacy,
and
reduced
adverse
effects.
Over
past
few
years,
sprayable
or
injectable
thermosensitive
hydrogels
have
exhibited
high
potential.
These
can
be
applied
as
cell-growing
scaffolds
drug-releasing
reservoirs
by
simply
mixing
a
free-flowing
sol
phase
at
room
temperature.
Inspired
their
unique
properties,
been
widely
delivery
treatment
platforms
for
precision
medicine.
In
this
review,
state-of-the-art
developments
are
investigated,
which
covers
from
thermo-gelling
mechanisms
main
components
biomedical
applications,
including
wound
healing,
anti-tumor
activity,
osteogenesis,
periodontal,
sinonasal
ophthalmic
diseases.
The
most
promising
applications
trends
of
also
discussed
light
features.