Temperature‐Responsive Anisotropic Bilayer Hydrogel Actuators with Adaptive Shape Transformation for Enhanced Actuation and Smart Sensor Applications
Macromolecular Chemistry and Physics,
Год журнала:
2024,
Номер
225(22)
Опубликована: Авг. 13, 2024
Abstract
Anisotropic
bilayer
hydrogel
actuators
are
high‐performance
materials
engineered
to
exhibit
unique
and
programmable
mechanical
properties,
including
varying
stiffness
directional
bending
capabilities,
by
integrating
two
layers
with
distinct
responses
stimuli.
However,
programming
constructing
these
hydrogels
remains
challenging
due
their
lack
of
robustness,
rapid
responsiveness,
dual‐actuation
which
hinder
practical
applications
further
development.
Hence,
developing
a
double‐actuating
temperature‐responsive
auxiliary
layer
could
address
challenges.
Herein,
an
anisotropic
actuator
is
developed
using
simple
economical
casting
method,
in
multiasymmetric
structure
locked
interfacial
fabricated.
The
as‐prepared
demonstrate
exceptional
abilities,
achieving
360
°C
angle
just
8
s,
adaptive,
complex
shape
transformation
capabilities
tailored
specific
needs
(e.g.,
dimensional
(2D)
letters,
leaves,
flower,
butterfly
hydrogel).
Furthermore,
the
possess
excellent
memory,
strength,
conductivity.
Additionally,
gripper
humidity
alarm
prototypes
made
from
also
successfully
developed,
illustrating
that
this
approach
opens
new
avenues
for
designing
producing
smart
sensors,
alarms,
on‐demand
grippers
actuators.
Язык: Английский
Robust Fabrication of Anisotropic Bilayer Hydrogel Embedded With a Gradient Structure in One Layer: Enhanced Temperature‐Responsive Bending, Shape Programmability, and Actuator and Sensor Applications
Journal of Applied Polymer Science,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 8, 2025
ABSTRACT
Anisotropic
hydrogel
actuators
with
gradient
structures
offer
tunable
mechanical
properties,
like
directional
stiffness
or
bending.
However,
creating
these
gradient‐structured
bilayer
hydrogels
is
challenging,
as
current
methods
rely
on
complex,
single‐force
programming.
Developing
a
double‐actuating
temperature‐responsive
and
auxiliary
layers
could
address
limitations
enhance
their
applicability.
In
this
study,
an
anisotropic
actuator
was
developed
using
simple,
cost‐effective
method
to
create
unique
multi‐asymmetric
structure
embedded
in
one
layer.
The
resulting
exhibited
excellent
bending
(360°
within
9
s)
adaptive,
complex
shape‐programmable
deformation
(2D
letters,
flowers,
butterflies,
leaves).
addition,
the
demonstrated
good
shape
memory,
strength,
conductivity.
Prototypes
of
gripper
humidity
alarm
were
successfully
fabricated,
showcasing
potential
strategy
for
designing
smart
applications
sensors,
alarms,
grippers,
actuators.
Язык: Английский
Three-Dimensional Graphene Foam and PDMS Composites for High-Performance Electrothermal and Photothermal Actuators
ACS Applied Electronic Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 10, 2025
Язык: Английский
MXene/VO2@PMMA Composite Film Multi‐responsive Actuator with Amphibious Motion
Small,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 16, 2025
Abstract
This
work
introduces
a
novel
composite
film
actuator
with
dual
actuation
mechanisms,
responsive
to
four
distinct
stimuli,
and
featuring
infrared
stealth
as
well
amphibious
locomotion
capabilities.
By
encapsulating
nanoscale
VO
2
phase‐change
materials
PMMA
coating
them
onto
thin
of
micrometer‐scale
Ti
3
C
T
x
MXene,
the
achieves
efficient
photothermal
conversion,
high
electrical
conductivity,
humidity‐responsive
actuation.
The
is
integrated
into
millirobots
capable
crawling,
grasping,
oscillating,
achieving
unrestricted
movement
on
water
surfaces.
These
demonstrate
rapid
response,
stability,
outstanding
performance
in
both
terrestrial
aquatic
environments,
90°
angular
change
s,
crawling
speed
10
mm
min
−1
land,
swimming
174
water.
Additionally,
this
proposes
mechanism
based
moisture
absorption
contraction
properties
further
expanding
application
potential
millirobots.
advancements
enable
navigate
confined
spaces
transport
sensitive
items
without
being
detected
by
sensors.
represents
substantial
leap
forward
soft
robotics
science,
paving
way
for
exploration
advanced
tailored
complex
applications.
Язык: Английский
Empowering Chemical AI Through Systems Chemistry
ChemSystemsChem,
Год журнала:
2024,
Номер
unknown
Опубликована: Сен. 19, 2024
Abstract
This
work
presents
some
ambitious
perspectives
on
how
Systems
Chemistry
can
contribute
to
developing
the
quite
new
research
line
of
Chemical
Artificial
Intelligence
(CAI).
CAI
refers
efforts
devising
liquid
chemical
systems
mimicking
performances
biological
and
human
intelligence,
which
ultimately
emerge
from
wetware.
The
implemented
so
far
assist
humans
in
making
decisions.
However,
such
lack
autonomy
cannot
substitute
humans.
development
autonomous
will
allow
colonization
molecular
world
with
remarkable
repercussions
well‐being.
As
a
beneficial
side
effect,
this
help
establish
deeper
comprehension
mesmerizing
phenomenon
origin
life
Earth
cognitive
capabilities
at
basic
physico‐chemical
level.
Язык: Английский
Exploring Microactuators and Sensors in Modern Applications
Advances in computational intelligence and robotics book series,
Год журнала:
2024,
Номер
unknown, С. 165 - 178
Опубликована: Сен. 20, 2024
The
development
of
robotic
systems
across
various
applications
is
increasingly
propelled
by
advancements
in
microactuators
and
sensors.
This
chapter
provides
a
comprehensive
exploration
their
pivotal
role,
the
challenges
they
present,
transformative
impact
on
modern
robotics.
Beginning
with
foundational
concepts,
it
progresses
to
detailed
examination
diverse
sensors,
elucidating
functionalities
potential
applications.
Emphasizing
crucial
role
feedback
mechanisms
enhancing
performance,
delves
into
integration
schemes
control
for
effective
operation.
Current
research
initiatives
future
directions
are
discussed,
highlighting
ongoing
efforts
overcome
such
as
miniaturization,
power
consumption,
reliability.
By
addressing
these
hurdles,
researchers
aim
unlock
full
sensors
microactuators,
fostering
innovation
advancing
capabilities
contemporary
systems.
Язык: Английский