Advanced Functional Materials,
Год журнала:
2024,
Номер
34(36)
Опубликована: Март 14, 2024
Abstract
A
class
of
transformable
materials
is
introduced
with
magnetic
defect‐defined
switchable
configurations.
The
soft
material
can
be
magnetically‐programmed
to
transform
into
various
encoded
patterns
utilizing
the
rich
interplay
interactions
and
instability
phenomenon.
strategy
allows
us
break
limit
admissible
configurations
instability‐induced
that
dictate
post‐transformation
behavior.
phenomenon
experimentally
realized
in
a
system
consisting
periodically
distributed
inclusions
matrix.
programmable
between
act
as
smart
defects
redirecting
transformations
targeted
geometric
Moreover,
role
spacing
field
strength
systematically
investigated
map
transition
mechanically‐dominant
magnetics‐dominant
patterns.
Lastly,
idea
reconfigurable
design
showcased
by
embedding
binary
information
form,
which
read
out
through
unique
repositioning
via
applied
mechanical
deformation.
Nature Communications,
Год журнала:
2023,
Номер
14(1)
Опубликована: Сен. 26, 2023
Mechanical
metamaterials
enable
the
creation
of
structural
materials
with
unprecedented
mechanical
properties.
However,
thus
far,
research
on
has
focused
passive
and
tunability
their
Deep
integration
multifunctionality,
sensing,
electrical
actuation,
information
processing,
advancing
data-driven
designs
are
grand
challenges
in
community
that
could
lead
to
truly
intelligent
metamaterials.
In
this
perspective,
we
provide
an
overview
within
beyond
classical
functionalities.
We
discuss
various
aspects
approaches
for
inverse
design
optimization
multifunctional
Our
aim
is
new
roadmaps
discovery
next-generation
active
responsive
can
interact
surrounding
environment
adapt
conditions
while
inheriting
all
outstanding
features
Next,
deliberate
emerging
specific
functionalities
informative
scientific
devices.
highlight
open
ahead
metamaterial
systems
at
component
levels
transition
into
domain
application
capabilities.
Abstract
Active
mechanical
metamaterials
(AMMs)
(or
smart
metamaterials)
that
combine
the
configurations
of
and
active
control
stimuli‐responsive
materials
have
been
widely
investigated
in
recent
decades.
The
elaborate
artificial
microstructures
stimulus
response
characteristics
both
contribute
to
AMMs,
making
them
achieve
excellent
properties
beyond
conventional
metamaterials.
micro
macro
structures
AMMs
are
designed
based
on
structural
construction
principles
such
as,
phase
transition,
strain
mismatch,
instability.
Considering
controllability
efficiency
materials,
physical
fields
temperature,
chemicals,
light,
electric
current,
magnetic
field,
pressure
adopted
as
external
stimuli
practice.
In
this
paper,
frontier
works
latest
progress
from
aspects
mechanics
reviewed.
functions
engineering
applications
also
discussed.
Finally,
existing
issues
future
perspectives
field
briefly
described.
This
review
is
expected
provide
basis
inspiration
for
follow‐up
research
AMMs.
Materials Horizons,
Год журнала:
2022,
Номер
9(7), С. 1825 - 1849
Опубликована: Янв. 1, 2022
We
review
recent
advances
in
4D
printing
of
LCEs,
with
emphasis
on
synthesis
and
processing
methods
that
enable
microscopic
changes
the
molecular
orientation
hence
macroscopic
properties
printed
objects.
Advanced Materials,
Год журнала:
2023,
Номер
36(9)
Опубликована: Апрель 30, 2023
Abstract
In
recent
decades,
origami
has
been
explored
to
aid
in
the
design
of
engineering
structures.
These
structures
span
multiple
scales
and
have
demonstrated
be
used
toward
various
areas
such
as
aerospace,
metamaterial,
biomedical,
robotics,
architectural
applications.
Conventionally,
or
deployable
actuated
by
hands,
motors,
pneumatic
actuators,
which
can
result
heavy
bulky
On
other
hand,
active
materials,
reconfigure
response
external
stimulus,
eliminate
need
for
mechanical
loads
actuation
systems.
Thus,
years,
materials
incorporated
with
shown
promise
remote
light
weight,
programmable
origami.
this
review,
shape
memory
polymers
(SMPs)
alloys
(SMAs),
hydrogels,
liquid
crystal
elastomers
(LCEs),
magnetic
soft
(MSMs),
covalent
adaptable
network
(CAN)
polymers,
their
mechanisms,
well
how
they
utilized
where
these
are
applicable
is
discussed.
Additionally,
state‐of‐the‐art
fabrication
methods
construct
highlighted.
The
existing
structural
modeling
strategies
origami,
constitutive
models
describe
largest
challenges
future
directions
research
summarized.
Nature Materials,
Год журнала:
2023,
Номер
22(10), С. 1243 - 1252
Опубликована: Авг. 21, 2023
Stimuli-responsive
geometric
transformations
endow
metamaterials
with
dynamic
properties
and
functionalities.
However,
using
existing
transformation
mechanisms
to
program
a
single
geometry
transform
into
diverse
final
configurations
remains
challenging,
imposing
crucial
design
restrictions
on
achieving
versatile
Here,
we
present
programmable
strategy
for
wide-spectrum
reconfigurable
micro-metastructures
linearly
responsive
transparent
hydrogels
as
artificial
muscles.
Actuated
by
the
hydrogel,
of
arises
from
collaborative
buckling
their
building
blocks.
Rationally
designing
three-dimensional
printing
parameters
features
metastructures
enables
locally
isotropic
or
anisotropic
deformation,
allowing
controllable
pattern
chirality
optical
anisotropy.
This
reconfiguration
mechanism
can
be
applied
various
materials
wide
range
mechanical
properties.
Our
thermally
printed
metalattice
pixel-by-pixel
mapping
different
powers
angles
displaying
hiding
complex
information,
providing
opportunities
encryption,
miniature
robotics,
photonics
phononics
applications.
Nature Materials,
Год журнала:
2024,
Номер
23(4), С. 560 - 569
Опубликована: Фев. 9, 2024
Abstract
Microactuators
provide
controllable
driving
forces
for
precise
positioning,
manipulation
and
operation
at
the
microscale.
Development
of
microactuators
using
active
materials
is
often
hampered
by
their
fabrication
complexity
limited
motion
small
scales.
Here
we
report
light-fuelled
artificial
goosebumps
to
actuate
passive
microstructures,
inspired
natural
reaction
hair
bristling
(piloerection)
on
biological
skin.
We
use
light-responsive
liquid
crystal
elastomers
as
responsive
skin
move
three-dimensionally
printed
polymer
microstructures.
When
exposed
a
programmable
femtosecond
laser,
elastomer
generates
localized
goosebumps,
resulting
in
actuation
surrounding
Such
microactuation
can
tilt
micro-mirrors
controlled
light
reflection
disassemble
capillary-force-induced
self-assembled
microstructures
globally
locally.
demonstrate
potential
application
proposed
system
information
storage.
This
methodology
provides
precise,
opening
new
possibilities
development
micromachines.
Progress in Polymer Science,
Год журнала:
2024,
Номер
153, С. 101829 - 101829
Опубликована: Май 10, 2024
Liquid
crystal
elastomers
(LCEs)
have
long
held
significant
promise
as
materials
for
artificial
muscles
and
smart
actuators.
Recent
advancements
in
this
field
introduced
innovative
LCE
structures
at
various
scales,
resulting
novel
properties
functionalities
that
further
accentuate
their
actuation
advantages,
bolstering
potential
future
soft
systems.
The
ongoing
pursuit
of
enhanced
performance
functionality
actuators,
essential
advancing
them
towards
superior
material-based
machines
devices,
is
intricately
linked
to
the
understanding
fundamental
structure-property-function
relationships.
This
review
provides
a
perspective
on
these
relationships
across
multiple
structural
levels,
encompassing
chemical
structures,
mesophase
micro-to-macroscale
programmed
structures.
It
delves
into
impact
key
actuation-related
properties,
features,
functionalities.
aspires
provide
valuable
insights
design
high-performance
development
exceptional
modes
behaviors,
expansion
achievable
functionality.
Advanced Materials,
Год журнала:
2021,
Номер
33(25)
Опубликована: Май 13, 2021
Programmable
actuation
of
metastructures
with
predesigned
geometrical
configurations
has
recently
drawn
significant
attention
in
many
applications,
such
as
smart
structures,
medical
devices,
soft
robotics,
prosthetics,
and
wearable
devices.
Despite
remarkable
progress
this
field,
achieving
wireless
miniaturized
reconfigurable
remains
a
challenge
due
to
the
difficult
nature
fabrication
processes
at
micrometer
scale.
Herein,
microscale
thermo-responsive
metasurfaces
using
stimuli-responsive
liquid
crystal
elastomers
(LCEs)
is
fabricated
an
artificial
muscle
for
reconfiguring
2D
kirigami
structures.
Such
structures
are
via
two-photon
polymerization
sub-micrometer
precision.
Through
rationally
designed
experiments
guided
by
simulations,
optimal
formulation
LCE
explored
relationship
between
shape
transformation
behaviors
parameters
build.
As
proof
concept
demonstration,
constructs
temperature-dependent
switching
information
encryption
applied.
have
potential
boosting
fundamental
small-scale
metastructure
research
design
functional
wearables,
robots
well.
