Polysaccharide-containing
hydrogels
are
noted
for
their
adhesion,
self-healing,
and
mechanical
properties,
yet
sensing
performance
at
low
strains
needs
improvement.
This
challenge
stems
from
integrating
hydrophobic
electronic
conductive
materials
to
exceed
percolation
threshold
within
hydrophilic
polymer
networks.
To
address
this,
a
composite
hydrogel
was
developed
using
chitosan
(CS)/chitosan
nanofiber
(CSF)
encapsulating
carbonized
crepe
paper
(CCP),
which
has
network
of
interwoven
cellulose
fibers.
The
integration
CCP
with
the
CS/CSF-based
grants
satisfactory
self-healing
capability,
antibacterial
properties.
As
an
electronically
material
continuous
network,
significantly
improves
hydrogel's
sensitivity,
achieving
high
gauge
factor
13.3
in
250–400%
strain
range.
sensor
also
shows
detection
limit
(0.2%),
fast
response
recovery
times
(166
ms),
excellent
stability
durability
(over
1000
cycles
10%
strain).
These
features
make
hydrogel-based
effective
monitoring
human
health
activities.
Furthermore,
soaking
water-glycerol
binary
solvent
composite-G
water
retention
maintains
properties
−18
60
°C.
work
offers
promising
approach
enhancing
polysaccharide-based
performance.
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
36(24)
Published: April 10, 2024
Abstract
Designing
nanocomposite
hydrogels
with
oriented
nanosheets
has
emerged
as
a
promising
toolkit
to
achieve
preferential
performances
that
go
beyond
their
disordered
counterparts.
Although
current
fabrication
strategies
via
electric/magnetic
force
fields
have
made
remarkable
achievements,
they
necessitate
special
properties
of
and
suffer
from
an
inferior
orientation
degree
nanosheets.
Herein,
facile
universal
approach
is
discovered
elaborate
MXene‐based
highly
oriented,
heterogeneous
architecture
by
virtue
supergravity
replace
conventional
fields.
The
key
such
leverage
bidirectional,
force‐tunable
attributes
containing
coupled
orthogonal
shear
centrifugal
field
for
steering
high‐efficient
movement,
pre‐orientation,
stacking
MXene
in
the
bottom.
Such
synergetic
effect
allows
yielding
high‐orientation
MXene‐rich
layer
(orientation
degree,
f
=
0.83)
polymer‐rich
layer.
authors
demonstrate
high‐orientation,
deliver
extraordinary
electromagnetic
interference
shielding
effectiveness
55.2
dB
at
12.4
GHz
yet
using
super‐low
0.3
wt%,
surpassing
most
hydrogels‐based
materials.
This
versatile
supergravity‐steered
strategy
can
be
further
extended
arbitrary
including
MoS
2
,
GO,
C
3
N
4
offering
paradigm
development
nanocomposites.
Aggregate,
Journal Year:
2024,
Volume and Issue:
5(5)
Published: May 15, 2024
Abstract
Supercapacitors
(SCs)
are
studied
and
used
in
various
fields
due
to
their
high
power
density,
fast
charging/discharging
rate,
as
well
long
cycle
life.
Compared
other
traditional
electrode
electrolyte
materials,
supramolecular
hydrogels
have
great
advantages
the
application
of
SCs
excellent
properties.
Unlike
covalent
bonds,
systems
assembled
through
dynamic
reversible
including
host–guest
interactions,
ion
electrostatic
hydrogen
bonding,
coordination
etc.
The
resulting
show
some
special
functions,
such
stretching,
compression,
adhesion,
self‐healing,
stimulus
responsiveness,
etc.,
making
them
strong
candidates
for
next
generation
energy
storage
devices.
This
paper
reviews
representative
progress
electrodes,
electrolytes,
based
on
hydrogels.
Besides,
properties
hydrogels,
conductivity,
extensibility,
compressibility
elasticity,
frost
resistance,
flexibility,
also
reviewed
highlight
key
role
hydrogel
materials
SCs.
In
addition,
this
article
discusses
challenges
faced
by
current
technologies,
hoping
continue
promoting
future
research
field.
Industrial & Engineering Chemistry Research,
Journal Year:
2023,
Volume and Issue:
62(43), P. 17765 - 17775
Published: Oct. 13, 2023
As
lignin
is
one
of
the
most
abundant
renewable
resources,
utilization
to
fabricate
functional
hydrogels
has
gained
increasing
attention.
However,
heterogeneous
structure
and
few
available
groups
limited
its
applications.
Herein,
we
presented
a
simple
strategy
synthesize
gallic
acid
(GA)-modified
as
key
component
prepare
conductive
hydrogels.
The
addition
GA
during
organic
solvent
pretreatment
poplar
changed
increased
total
content
phenolic
hydroxyl
from
3.20
3.89
mmol/g
(EOL-G30).
Moreover,
enzymatic
hydrolysis
pretreated
was
enhanced
49.1
55.2%
(OP-G30)
at
low
enzyme
loading
5
FPU/g.
When
using
GA-modified
hydrogels,
resulting
hydrogel
exhibited
excellent
self-adhesion
various
substrates
demonstrated
effective
free
radical
scavenging
capabilities.
incorporating
sodium
chloride
(NaCl)
ions,
exhibit
reliable
strain-sensing
capability.
they
also
displayed
robust
functionality
in
low-temperature
environment
(−20
°C).
This
study
valuable
insights
realize
situ
modification
lignin-based
materials,
offering
new
perspectives
for
biorefinery
industry.
Journal of Applied Polymer Science,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 28, 2025
ABSTRACT
Hemicellulose,
as
one
of
the
key
components
plant
cell
wall,
is
second
most
abundant
polysaccharide
in
nature,
after
cellulose.
It
highly
valued
by
both
academic
and
industrial
communities
because
its
low
cost,
environmental
friendliness,
renewability,
biodegradability.
In
this
review,
we
provide
a
comprehensive
elaboration
mechanisms
latest
research
advancements
hemicellulose
extraction
using
various
methods,
including
alkali
extraction,
hydrothermal
pretreatment,
acid
deep
eutectic
solvent
extraction.
Furthermore,
applications
hemicellulose‐based
hydrogels
adsorbent,
drug
delivery
materials,
wound
dressings,
bone
tissue
engineering
flexible
sensors
are
presented.
The
four
commonly
used
types
polysaccharides
regarding
healing,
xyloglucan,
xylan,
konjac
glucomannan,
seed‐derived
galactomannan,
systematically
addressed.
At
last,
perspectives
on
current
challenges
future
development
trends
briefly
purpose
review
to
actionable
strategies
for
biomass
valorization.
