Smart liquid crystal elastomer fibers
Matter,
Год журнала:
2025,
Номер
8(2), С. 101950 - 101950
Опубликована: Фев. 1, 2025
Light‐Fueled Self‐Oscillation of a Viscoelastic Liquid Crystal Elastomer Oscillator
Advanced Engineering Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 16, 2025
Self‐oscillating
systems
based
on
active
materials
offer
significant
potential
for
creating
autonomous
intelligent
machines
by
harnessing
environmental
energy
and
enabling
self‐regulation.
However,
most
such
overlook
the
viscoelastic
behavior
of
materials,
which
exhibit
both
elastic
viscous
deformation
under
load,
underscoring
importance
studying
these
effects
system
performance.
Herein,
a
liquid
crystal
elastomer
(LCE)
spring
oscillator
is
presented
its
dynamic
behaviors
are
investigated.
The
governing
equations
developed
linear
thermoviscoelastic
model.
analysis
concludes
that
has
supercritical
Hopf
bifurcation
between
static
mode
self‐oscillation
mode.
Exact
expressions
amplitude
frequency,
along
with
asymptotic
analytic
solutions,
also
provided.
Additionally,
key
parameters
influencing
frequency
self‐oscillating
examined.
Especially,
viscoelasticity
LCE
fiber
greatly
affects
point,
amplitude,
period
oscillator.
These
results
provide
convenience
guidance
various
applications,
especially
in
related
fields
as
soft
robotics,
micromechanical
systems,
harvesters.
Язык: Английский
Stimuli-responsive hydrogel microspheres encapsulated with tumor-cell-derived microparticles for malignant ascites treatment
Acta Biomaterialia,
Год журнала:
2024,
Номер
192, С. 328 - 339
Опубликована: Ноя. 24, 2024
Язык: Английский
Microsensor‐Internalized Fibers as Autonomously Controllable Soft Actuators
Small,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 24, 2024
Abstract
Despite
their
strengths
in
flexibility
and
miniaturization,
the
stable
operation
of
soft
actuators
under
ever‐changing
environmental
biological
conditions
is
hindered
by
lack
applicable
methods
using
internal
sensors
to
detect
unintentional
stimuli.
Here,
integration
a
microscale
driving
source
single
fiber
via
thermal
drawing
presented
as
strategy
scalably
produce
autonomously
responsive,
feedback‐controllable
actuators.
The
regulation
input
electrothermal
stimuli
closed
loop
control
system
that
based
on
completely
coupled
sensory
components
enables
multimodal
actuation
fiber‐based
actuators,
which
further
demonstrated
through
preservation
actuating
conditions,
selected
devices
bundles,
modulation
motion
characteristics.
approach
manufacturing
controllable
can
expand
applications
kaleidoscopic
biomedical
bioengineering
fields
for
transportation,
robotics,
prosthetics.
Язык: Английский