The Journal of Chemical Physics,
Journal Year:
2024,
Volume and Issue:
161(7)
Published: Aug. 15, 2024
Magnetic
gels
with
embedded
micro-/nano-sized
magnetic
particles
in
cross-linked
polymer
networks
can
be
actuated
by
external
fields,
changes
their
internal
microscopic
structures
and
macroscopic
mechanical
properties.
We
investigate
the
responses
of
such
to
an
field,
means
coarse-grained
molecular
dynamics
simulations.
find
that
are
determined
interplay
dipole–dipole
interactions,
elasticity,
thermal
fluctuations.
The
corresponding
formed
particles,
as
elongated
chains,
controlled
field.
Furthermore,
exhibit
reinforced
properties,
where
elastic
modulus
increases
algebraically
moments
form
∝(m−mc)2
when
chains
formed.
This
simulation
work
not
only
serve
a
tool
for
studying
gels,
but
also
facilitate
future
fabrications
practical
controls
composites
desired
physical
Advanced Engineering Materials,
Journal Year:
2023,
Volume and Issue:
25(21)
Published: Aug. 29, 2023
Stimuli‐responsive
polymers
(SRPs)
are
special
types
of
soft
materials,
which
have
been
extensively
used
for
developing
flexible
actuators,
robots,
wearable
devices,
sensors,
self‐expanding
structures,
and
biomedical
thanks
to
their
ability
change
shapes
functional
properties
in
response
external
stimuli
including
light,
humidity,
heat,
pH,
electric
field,
solvent,
magnetic
field
or
combinations
two
more
these
stimuli.
In
recent
years,
additive
manufacturing
(AM)
aka
3D
printing
technology
SRPs,
also
known
as
4D
printing,
has
gained
phenomenal
attention
different
engineering
fields,
its
unique
develop
complex,
personalized,
innovative
undergo
twisting,
elongating,
swelling,
rolling,
shrinking,
bending,
spiraling,
other
complex
morphological
transformations.
Herein,
an
effort
made
provide
insightful
information
about
the
AM
techniques,
type
applications
including,
but
not
limited
tissue
engineering,
bionics,
construction,
smart
textiles.
This
article
incorporates
current
challenges
prospects,
hoping
basis
utilization
this
fields.
It
is
expected
that
amalgamation
with
SRPs
would
unparalleled
advantages
arenas.
Giant,
Journal Year:
2023,
Volume and Issue:
17, P. 100209 - 100209
Published: Nov. 15, 2023
Additive
manufacturing
(AM)
aka
three-dimensional
(3D)
printing
has
been
a
well-established
and
unparalleled
technology,
which
is
expanding
the
boundaries
of
materials
science
exhibiting
an
enormous
potential
to
fabricate
intricate
geometries
for
healthcare,
electronics,
construction
sectors.
In
contemporary
era,
combination
AM
technology
stimuli-responsive
hydrogels
(SRHs)
helps
create
dynamic
functional
structures
with
extreme
accuracy,
are
capable
changing
their
shape,
functional,
or
mechanical
properties
in
response
environmental
cues
such
as
humidity,
heat,
light,
pH,
magnetic
field,
electric
etc.
3D
SRHs
permits
creation
on-demand
dynamically
controllable
shapes
excellent
control
over
various
self-repair,
self-assembly,
multi-functionality,
These
accelerate
researchers
think
unthinkable
applications.
Additively
manufactured
objects
have
shown
applications
like
tissue
engineering,
drug
delivery,
soft
robots,
sensors,
other
biomedical
devices.
The
current
review
provides
recent
progress
SRHs,
more
focus
on
techniques,
stimuli
mechanisms,
shape
morphing
behaviors,
Finally,
trends
future
roadmap
additively
smart
different
also
presented,
will
be
helpful
research.
This
holds
great
promise
providing
fundamental
knowledge
about
diverse
Advanced Science,
Journal Year:
2024,
Volume and Issue:
11(26)
Published: May 5, 2024
Abstract
Creatures,
such
as
Venus
flytrap
and
hummingbirds,
capable
of
rapid
predation
through
snap‐through
transition,
provide
paradigms
for
the
design
soft
actuators
robots
with
fast
actions.
However,
these
artificial
“snappers”
usually
need
contact
stimulations
to
trigger
flipping.
Reported
here
is
a
constrained
anisotropic
poly(
N
‐isopropylacrylamide)
hydrogel
showing
snapping
upon
light
stimulation.
This
prepared
by
flow‐induced
orientation
nanosheets
(NSs)
within
rectangular
tube.
The
precursor
containing
gold
nanoparticles
immediately
exposed
UV
photopolymerization
fix
ordered
structure
NSs.
Two
ends
slender
gel
are
clamped
form
buckle
bistability
nature,
which
snaps
other
side
laser
irradiation.
Systematic
experiments
conducted
investigate
influences
power
intensity
irradiation
angle
laser,
well
thickness
height
gel,
on
behaviors.
further
used
kick
plastic
bead
control
switch
state.
Furthermore,
synergetic
or
oscillated
two
buckles
opposite
directions
realized
inclined
horizontal
lasers,
respectively.
Such
light‐steered
hydrogels
should
merit
designing
robots,
energy
harvests,
etc.
Journal of Materials Chemistry B,
Journal Year:
2023,
Volume and Issue:
11(26), P. 6095 - 6105
Published: Jan. 1, 2023
A
triaxial
microfluidic
chip
and
a
magnetic
drive
system
developed
in
this
paper
greatly
reduce
the
complexity
cost
of
system.
The
prepared
capsule
microrobots
have
excellent
potential
for
drug
delivery
similar
vascular
microchannels.
Journal of Materials Chemistry B,
Journal Year:
2024,
Volume and Issue:
12(31), P. 7463 - 7479
Published: Jan. 1, 2024
The
number
of
patients
with
non-healing
wounds
continuously
increases,
and
has
become
a
prominent
societal
issue
that
imposes
heavy
burden
on
both
the
entire
healthcare
system.
Although
traditional
dressings
play
an
important
role
in
wound
healing,
complexity
diversity
healing
process
pose
serious
challenges
this
field.
Magneto-responsive
biocomposites,
their
excellent
biocompatibility,
remote
spatiotemporal
controllability,
unique
convenience,
demonstrate
enticing
advantages
field
dressings.
However,
current
research
magneto-responsive
biocomposites
as
lacks
comprehensive
in-depth
reviews,
which
to
some
extent,
restricts
deeper
understanding
further
development
Based
this,
paper
reviews
latest
advances
magnetic
responsive
for
healing.
First,
we
review
skin
parameters
assessing
repair
progress.
Then,
systematically
discuss
preparation
strategies
characteristics
focusing
magneto-induced
orientation,
mechanical
stimulation,
magnetocaloric
effect.
Subsequently,
elaborates
multiple
mechanisms
promoting
including
regulating
cell
behavior,
enhancing
electrical
signal,
controlling
drug
release,
accelerating
tissue
reconstruction.
Finally,
propose
direction
future
biomaterials
clinical
application.
