Authorea (Authorea),
Journal Year:
2023,
Volume and Issue:
unknown
Published: May 2, 2023
Fuel-driven
dissipative
self-assembly,
which
is
a
well-established
concept
in
recent
years,
refers
to
out-of-equilibrium
molecular
self-assembly
initiated
and
supported
by
the
addition
of
active
molecules
(chemical
fuel).
It
widely
exists
nature
since
many
tempo-rary,
micro-
or
nanostructures
living
bodies
are
generated
biomolecules.
Therefore,
study
on
provides
good
opportunity
have
an
insight
into
microscopic
mechanism
organisms.
In
meantime,
assembly
thought
be
potential
pathway
achieve
dynamic,
temporary
supramolecular
materials.
Recently,
number
materials
been
developed
with
aid
strategies
for
realizing
self-assembly.
Some
their
properties,
including
solubility,
stiffness,
turbidity,
color,
self-healing
ability,
change
upon
chemical
fuel
but
spontaneously
restore
consumption.
The
dynamic
these
brings
them
various
unprecedented
functions.
this
review,
principles
fabricating
fuel-driven
material
first
reviewed
subsequently,
examples
emphatically
summarized,
gels,
self-erased
inks,
nanoreactors,
materials,
nanochannels.
Finally,
challenges
developing
some
perspectives
function
application
such
kind
discussed.
ACS Applied Materials & Interfaces,
Journal Year:
2024,
Volume and Issue:
16(7), P. 9224 - 9230
Published: Feb. 9, 2024
Soft
robots
have
great
potential
applications
in
manufacturing,
disaster
rescue,
medical
treatment,
etc.
Artificial
muscle
is
one
of
the
most
important
components
a
soft
robot.
In
previous
years,
hydrogel
actuators
that
can
be
controllably
deformed
by
stimuli
external
signals
been
developed
as
good
candidates
for
muscle-like
materials.
this
article,
we
successfully
prepared
chemical
fuel-driven
self-resettable
bilayer
actuator
mimicking
natural
muscles
with
aid
new
negative
feedback
reaction
network.
The
temporarily
deform
upon
addition
H+
(chemical
fuel).
Subsequently,
accelerated
between
BrO3–
and
Fe(CN)64–,
which
consume
H+.
It
resulted
spontaneous
recovery
pH
well
shape
actuator.
Such
an
exhibits
similarity
actuation
mechanisms
automaticity
manipulation
compared
to
widely
reported
stimuli-responsive
actuators.
This
illustrates
promising
dynamic
material
functions
living
creatures.
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
63(20)
Published: March 22, 2024
Abstract
Recent
work
has
demonstrated
that
temporary
crosslinks
in
polymer
networks
generated
by
chemical
“fuels”
afford
materials
with
large,
transient
changes
their
mechanical
properties.
This
can
be
accomplished
carboxylic‐acid‐functionalized
hydrogels
using
carbodiimides,
which
generate
anhydride
lifetimes
on
the
order
of
minutes
to
hours.
Here,
impact
network
architecture
properties
transiently
crosslinked
was
explored.
Single
(SNs)
were
compared
interpenetrated
(IPNs).
Notably,
semi‐IPN
precursors
give
IPNs
treatment
carbodiimide
much
higher
fracture
energies
(i.e.,
resistance
fracture)
and
superior
compressive
strain
other
architectures.
A
precursor
material
featuring
acrylic
acid
only
free
chains
yields,
carbodiimide,
an
IPN
a
energy
2400
J/m
2
,
fourfold
increase
analogous
yields
SN.
enables
formation
macroscopic
complex
cut
patterns,
even
at
high
strain,
underscoring
pivotal
role
performance.
Polymers,
Journal Year:
2023,
Volume and Issue:
15(3), P. 786 - 786
Published: Feb. 3, 2023
Stimuli-responsive
hydrogel
actuators
have
attracted
tremendous
interest
in
switches
and
microrobots.
Based
on
N-isopropylacrylamide
(NIPAM)
monomers
with
LCST
phase
separation
photochromic
molecule
spiropyran
which
can
respond
to
ultraviolet
light
H+,
we
develop
a
novel
multistimuli-responsive
co-polymer
anisotropic
bilayer
hydrogel,
undergo
complex
deformation
behavior
under
environmental
stimuli.
Diverse
bending
angles
were
achieved
based
inhomogeneous
swelling.
By
controlling
the
temperature,
hydrogels
of
83.4°
−162.4°
below
above
critical
temperature
PNIPAM.
Stimulated
by
showed
−19.4°
−17.3°,
respectively.
In
addition,
designed
strategy
enhance
mechanical
properties
via
double
network
(DN).
The
microscopic
Fourier
transform
infrared
(micro-FTIR)
spectrum
that
be
well
bonded
at
interfaces
such
bilayers.
This
work
will
inspire
design
fabrication
soft
synergistic
functions.
ACS Applied Materials & Interfaces,
Journal Year:
2024,
Volume and Issue:
16(15), P. 19642 - 19650
Published: April 3, 2024
The
fabrication
of
a
soft
actuator
with
dampened
actuation
response
is
presented.
This
was
achieved
via
the
incorporation
into
an
actuating
hydrogel
urease-loaded
pH-responsive
bicontinuous
nanospheres
(BCNs),
whose
membrane
able
to
regulate
permeability
and
thus
conversion
fuel
urea
ammonia.
these
nanoreactors
enzymatically
induced
pH
change
translated
actuator.
In
hydrogels
composed
nonresponsive
layer,
transient
gradient
yielded
asymmetric
swelling
behavior,
which
bending
response.
profile
could
be
controlled
by
varying
external
concentrations.
Furthermore,
we
showed
that
spatial
organization
BCNs
within
had
great
influence
on
Embedding
active,
layer
resulted
in
reduced
due
local
substrate
comparison
embedding
them
passive
bilayer
hydrogel.
Finally,
were
induce
comprising
two
identical
active
layers
immobilization
one
specific
layer.
Upon
addition
urea,
generated,
caused
accelerated
BCN
device
before
attenuated
over
time.
Gels,
Journal Year:
2025,
Volume and Issue:
11(4), P. 254 - 254
Published: March 27, 2025
This
paper
comprehensively
reviews
the
latest
advances
in
hydrogel-based
continuum
soft
robots.
Hydrogels
exhibit
exceptional
flexibility
and
adaptability
compared
to
traditional
robots
reliant
on
rigid
structures,
making
them
ideal
as
biomimetic
robotic
skins
platforms
for
constructing
highly
accurate,
real-time
responsive
sensory
interfaces.
The
article
systematically
summarizes
recent
research
developments
across
several
key
dimensions,
including
application
domains,
fabrication
methods,
actuator
technologies,
sensing
mechanisms.
From
an
perspective,
span
healthcare,
manufacturing,
agriculture.
Regarding
techniques,
extensively
explores
crosslinking
additive
microfluidics,
other
related
processes.
Additionally,
categorizes
thoroughly
discusses
various
actuators
solute/solvent
variations,
pH,
chemical
reactions,
temperature,
light,
magnetic
fields,
electric
hydraulic/electro-osmotic
stimuli,
humidity.
It
also
details
strategies
designing
implementing
diverse
sensors,
strain,
pressure,
humidity,
conductive,
magnetic,
thermal,
gas,
optical,
multimodal
sensors.
Finally,
offers
in-depth
discussion
of
prospective
applications
robots,
particularly
emphasizing
their
potential
medical
industrial
fields.
Concluding
remarks
include
a
forward-looking
outlook
highlighting
future
challenges
promising
directions.
The Journal of Physical Chemistry B,
Journal Year:
2023,
Volume and Issue:
127(49), P. 10508 - 10517
Published: Dec. 5, 2023
Temporal
regulation
between
input
and
output
signals
is
one
of
the
hallmarks
complex
biological
processes.
Herein,
we
report
that
conformational
disposition
a
protein
in
macromolecularly
crowded
media
can
be
controlled
with
time
using
enzymes.
First,
demonstrate
pH
dependence
bovine
serum
albumin
(BSA)
condensation
alteration
presence
poly(ethylene
glycol)
as
crowder.
However,
by
exploiting
strength
pH-modulatory
enzymatic
reactions
(glucose
oxidase
urease),
conversion
condensed
free
forms
tuned.
Additionally,
trapping
intermediate
states
respect
to
overall
system
at
particular
α-helix
or
β-sheet
composition
rotational
mobility
possible
simply
altering
substrate
concentration.
Finally,
show
intrinsic
catalytic
ability
BSA
toward
Kemp
elimination
(KE)
reaction
inhibited
aggregated
form
but
regained
form.
In
fact,
rate
KE
also
actuated
enzymatically
temporal
fashion,
therefore
demonstrating
programmability
cascade
biochemical
events
media.
ChemPlusChem,
Journal Year:
2024,
Volume and Issue:
89(6)
Published: Feb. 15, 2024
Abstract
Polymer
waste
is
a
pressing
issue
that
requires
innovative
solutions
from
the
scientific
community.
As
beacon
of
hope
in
addressing
this
challenge,
concept
sustainable
supramolecular
polymers
(SSPs)
emerges.
This
article
discusses
challenges
and
efforts
fabricating
SSPs.
Addressing
trade‐offs
between
mechanical
performance
sustainability,
ultra‐tough
multi‐recyclable
are
fabricated
via
tailoring
mismatched
interactions.
Additionally,
healing
kinetically
inert
polymer
materials
realized
through
transient
regulation
interfacial
reactivity.
Furthermore,
possible
development
trajectory
for
SSPs
proposed,
can
be
regarded
as
next
generation
field.
The
evolution
promises
to
pivotal
stride
towards
regenerative
economy,
sparking
further
exploration
innovation
realm
materials.
