Strong and Tough Eutectogels with Broad‐Range Tunable Mechanical Properties via the Hydrogen Bond Network‐Specific Effect
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 9, 2025
Abstract
Eutectogels
represent
promising
materials
for
technological
applications
due
to
their
excellent
ionic
conductivity,
thermal
and
electrochemical
stability,
nonvolatility.
Nonetheless,
most
existing
eutectogels
suffer
from
low
strength
toughness.
Herein,
a
strategy
broadly
alter
the
mechanical
properties
of
by
tuning
aggregation
states
polymer
chains
through
specific
hydrogen
bond
network
deep
eutectic
solvent
is
reported.
The
prepared
exhibit
exceptional
properties,
including
record‐breaking
toughness
(203.38
MJ
m
−3
)
(31.53
MPa),
outperforming
even
toughest
reported
surpassing
synthetic
polymers
such
as
PDMS,
rubber,
natural
spider
silk.
By
tailoring
solvent's
careful
selection
number
types
bonding
functional
groups,
can
be
precisely
tuned
across
wide
range.
Specifically,
tensile
adjusted
8.19
31.53
MPa,
69.84
203.38
,
modulus
3.38
13.01
MPa.
Given
diversity
solvents,
proposed
allows
rational
design
hydrogen‐bond
networks
further
optimize
eutectogels,
providing
versatile
approach
controlled
preparation
high‐strength,
tough
eutectogels.
Язык: Английский
Directional Vaporization‐Driven Alignment in Printable Muscle‐Mimetic Anisotropic Protein Materials
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 4, 2025
Abstract
Biomimetic
materials
hold
significant
potential
for
a
wide
range
of
applications,
yet
developing
straightforward
and
versatile
methods
to
create
muscle‐mimetic,
high‐performance
protein
with
anisotropic
properties
remains
major
challenge.
In
this
study,
simple
general
strategy
is
presented
alignment
driven
by
directional
airflow,
enabling
the
design
printable,
muscle‐mimetic
proteins.
By
utilizing
airflow
during
hydrogel
drying
in
combination
rapid
photochemistry,
molecules
align
efficiently
single
direction.
Similar
natural
muscle,
mechanical
these
can
be
further
enhanced
through
training,
achieving
remarkable
strength
up
≈8
MPa
at
600%
strain
an
anisotropy
factor
3.0.
This
fabrication
process
compatible
conventional
printing
techniques,
allowing
creation
complex
structures
controlled
tailored
properties.
Notably,
exhibit
biomimetic
actuation
(≈6
s)
adaptability
under
physiological
conditions.
Their
demonstrated
proof‐of‐concept
applications
as
artificial
grippers
vessel
dilators,
which
remain
stable
months
but
degrade
rapidly
within
hours
after
enzymatic
treatment
post‐therapy.
directional‐airflow‐driven
method,
along
resulting
materials,
offers
promising
implications
fields,
from
medical
devices
adaptive
technologies.
Язык: Английский
Development of Zn2+ Mediated Hydrogel With Reversible and Dynamic Crosslinking Network
Paresh Nageshwar,
Gopal Lal Dhakar,
Shiva Singh
и другие.
Polymers for Advanced Technologies,
Год журнала:
2025,
Номер
36(4)
Опубликована: Апрель 1, 2025
ABSTRACT
Metal
ion‐assisted
hydrogels
are
of
growing
interest
because
their
excellent
mechanical
properties,
fast
recovery,
and
self‐healing
ability.
However,
affording
all
these
properties
in
a
single
polymeric
framework
is
very
challenging.
This
paper
presents
facile
one‐pot
synthesis
Zn
2+
coordinated
by
using
acrylic
acid
acrylamide
monomer
as
precursors.
Special
emphasis
has
been
placed
on
the
types
zinc
salt
that
have
not
studied
before.
Zinc
coordination
provides
hydrogel
with
prominent
strength,
toughness,
stretchability,
without
any
stimulation,
due
to
numerous
entanglements
chains.
Rheology
studies
demonstrate
various
salts
used
for
functional
groups
could
influence
gels
different
extents.
The
highest
potential
exhibited
MGel‐ZnCl
2
(up
90%
recovery)
while
those
MGel,
MGel‐Zn(NO
3
)
,
MGel‐ZnSO
4
60%,
62%,
64%,
respectively.
Dynamic
analysis
reveals
higher
compressive
strength
(0.86
MPa)
when
compared
other
samples
viz.
MGel
(0.48
MPa),
(0.49
(0.45).
On
hand,
offers
remarkable
strain
stability
at
ε
%
=
66.63
surpassing
(
11.05),
55),
17).
Язык: Английский
Eutectogels: Recent Advances and Emerging Biological Applications
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 7, 2025
Abstract
Eutectogels,
a
family
of
emerging
materials,
integrate
the
characteristics
deep
eutectic
solvents
(DES)
and
gels,
presenting
unique
application
potential
in
biomedical
engineering.
However,
latest
progress
eutectogels
their
applications
field
remain
to
be
summarized
refined.
This
review
first
introduces
composition
properties
generated
by
interaction
between
DES
gel
matrix.
Subsequently,
classifications
advantages
are
comprehensively
discussed
according
cross‐linked
preparation
methods,
including
physical,
chemical,
multiple
cross‐linked.
By
analyzing
eutectogels,
such
as
mechanical
performance,
thermal
properties,
conductivity,
injectability,
structure‐function
relationships,
is
overviewed.
Then,
eutectogel's
prospects
engineering
elaborated
detail,
drug
delivery
improve
stability
precise
control
release,
enhancing
curative
effects
reducing
side
effects.
Also,
functional
utilization
tissue
engineering,
biosensing,
bioadhesives,
related
domains
explored.
Finally,
existing
challenges
prospective
research
directions
delineated.
Язык: Английский