Soft Matter,
Год журнала:
2023,
Номер
20(12), С. 2635 - 2687
Опубликована: Дек. 13, 2023
We
highlight
key
results
and
outstanding
questions
emerging
from
recent
literature,
aiming
to
provide
readers
with
a
comprehensive
overview
of
the
latest
advancements
in
understanding
conformation
dynamics
polyelectrolytes
dilute
solutions.
Journal of Functional Biomaterials,
Год журнала:
2023,
Номер
14(2), С. 55 - 55
Опубликована: Янв. 19, 2023
Hydrogels
are
three-dimensional
crosslinked
structures
with
physicochemical
properties
similar
to
the
extracellular
matrix
(ECM).
By
changing
hydrogel’s
material
type,
crosslinking,
molecular
weight,
chemical
surface,
and
functionalization,
it
is
possible
mimic
mechanical
of
native
tissues.
currently
used
in
biomedical
pharmaceutical
fields
for
drug
delivery
systems,
wound
dressings,
tissue
engineering,
contact
lenses.
Lately,
research
has
been
focused
on
hydrogels
from
natural
sources.
Polysaccharides
have
drawn
attention
recent
years
as
a
promising
biological
applications,
due
their
biocompatibility,
biodegradability,
non-toxicity,
excellent
properties.
Polysaccharide-based
can
be
systems
efficient
release
various
types
cancer
therapeutics,
enhancing
therapeutic
efficacy
minimizing
potential
side
effects.
This
review
summarizes
hydrogels’
classification,
properties,
synthesis
methods.
Furthermore,
also
covers
several
important
polysaccharides
(chitosan,
alginate,
hyaluronic
acid,
cellulose,
carrageenan)
widely
and,
particular,
application
treatment.
Polymers,
Год журнала:
2023,
Номер
15(14), С. 3012 - 3012
Опубликована: Июль 12, 2023
Ionically,
cross-linked
alginate
gels
have
a
potential
to
be
used
in
wide
range
of
biomedical,
environmental
and
catalytic
applications.
The
study
deals
with
preparation
hydrogels
various
cations
the
analysis
their
equilibrium
swelling
mechanical
properties.
It
is
shown
that
type
cross-linking
process
affects
elastic
moduli
degree
gels.
experimental
data
small-amplitude
oscillatory
tests
are
fitted
model
involves
two
material
parameters:
modulus
polymer
network
measure
its
inhomogeneity.
influence
on
these
quantities
studied
numerically.
revealed
dependence
ionically
differs
from
predicted
by
conventional
theory
for
covalently
Environmental Research,
Год журнала:
2023,
Номер
243, С. 117889 - 117889
Опубликована: Дек. 10, 2023
In
the
last
decade,
both
cellulose
and
alginate
polysaccharides
have
been
extensively
utilized
for
synthesis
of
biocompatible
hydrogels
because
their
alluring
characteristics
like
low
cost,
biodegradability,
hydrophilicity,
ease
availability
non-toxicity.
The
presence
abundant
hydrophilic
functional
groups
(like
carboxyl
hydroxyl)
on
surface
or
derivatives
makes
these
materials
promising
candidates
preparation
with
appealing
structures
characteristics,
leading
to
growing
research
in
water
treatment
biomedical
fields.
These
two
are
typically
blended
together
improve
hydrogels'
desired
qualities
(mechanical
strength,
adsorption
properties,
cellulose/alginate
yield).
So,
keeping
view
extensive
applicability,
present
review
article,
recent
advances
development
cellulose/nanocellulose-alginate-based
relevance
(adsorption
dyes,
heavy
metals,
etc.)
field
(wound
healing,
tissue
engineering,
drug
delivery)
has
reviewed.
Further,
impact
other
inorganic/organic
additives
properties
contaminants
adsorption,
delivery,
etc.,
also
studied.
Moreover,
current
difficulties
future
prospects
nanocellulose-alginate-based
regarding
purification
applications
discussed
at
end.
Advanced Sensor Research,
Год журнала:
2023,
Номер
3(3)
Опубликована: Май 3, 2023
Abstract
Hydrogels
have
drawn
considerable
attention
in
the
field
of
flexible
chemical
sensors
due
to
their
unique
3D
structure,
high
permeability,
ion‐conductivity,
and
tissue‐like
mechanical
properties.
These
structures
properties
allow
them
be
functionalized
into
diverse
sensing
components
respond
signals
complex
environments.
Herein,
an
overview
functional
hydrogel‐based
is
provided.
First,
representative
hydrogel
materials
are
introduced
operating
principles
for
discussed.
Then,
state‐of‐the‐art
applications
highlighted
including
gas
sensors,
humidity
pH
glucose
wound
monitoring,
others.
Finally,
major
challenges
opportunities
this
Stretchable
polymeric
fibers
have
enormous
potential,
but
their
production
requires
rigorous
environmental
controls
and
considerable
resource
consumption.
It's
also
challenging
for
elastic
polymers
with
high
performance
poor
spinnability,
such
as
silicones
like
polydimethylsiloxane
Ecoflex.
We
present
a
hydrogel-assisted
microfluidic
spinning
(HAMS)
method
to
address
these
challenges
by
encapsulating
prepolymers
within
arbitrarily
long,
protective,
sacrificable
hydrogel
fibers.
By
designing
simple
apparatuses
manipulating
the
fluidic
interfacial
self-adaptations
of
oil/water
flows,
we
successfully
produce
widely
controllable
diameter
(0.04
3.70
millimeters),
notable
length,
quality
(e.g.,
smooth
surface,
whole-length
uniformity,
rounded
section),
remarkable
stretchability
(up
1300%)
regardless
spinnability.
Uniquely,
this
allows
an
easy,
effective,
reshaping
helical
exceptional
mechanical
compliance.
deeply
reveal
mechanisms
in
producing
demonstrate
potential
textile
components,
optoelectronic
devices,
actuators.
The
HAMS
would
be
powerful
tool
mass-producing
high-quality
stretchable
Chemical Engineering Journal,
Год журнала:
2024,
Номер
485, С. 149542 - 149542
Опубликована: Фев. 20, 2024
An
innovative
electrochemical
microreactor
leveraging
redox-responsive
hydrogels
for
the
targeted
removal
of
organic
pollutants
has
been
presented
in
this
study.The
centrepiece
is
a
alginate
hydrogel
cross-linked
with
iron
ions,
capable
controlling
release
Fe
ions
by
an
external
electrical
stimulus.The
were
used
to
activate
persulfate,
leading
formation
reactive
sulfate
and
hydroxyl
radicals
situ.The
system
was
tested
continuous
degradation
radical
oxidation
using
bisphenol
A
(BPA)
as
model
system.This
unique,
responsive
feature
enables
its
modulation
thus
BPA
on
demand.In
operation,
efficiency
over
94
%
achieved,
demonstrating
enormous
potential
microfluidic
setup
environmental
remediation
various
pollutants.By
tailoring
process
conditions,
such
residence
time,
even
complete
achieved.The
robust
portable
design
should
enable
utilization
at
site
contamination.Due
efficient
control
achieved
through
design,
study
further
delves
into
adaptability
different
matrices
showcases
promising
solution
increasing
global
threat
water
pollution.Thereby,
research
opens
up
new
strategies
niche-oriented
pollution
management,
including
model-based
approaches.The
CFD
applied
simulate
optimize
enabling
intensification.
ACS Applied Materials & Interfaces,
Год журнала:
2024,
Номер
16(12), С. 15322 - 15335
Опубликована: Март 12, 2024
Chemotherapy
is
a
conventional
treatment
that
uses
drugs
to
kill
cancer
cells;
however,
it
may
induce
side
effects
and
be
incompletely
effective,
leading
the
risk
of
tumor
recurrence.
To
address
this
issue,
we
developed
novel
injectable
thermal/near-infrared
(NIR)-responsive
hydrogels
control
drug
release.
The
hydrogel
formulation
was
composed
biocompatible
alginates,
poly(N-acryloyl
glycinamide)
(PNAGA)
copolymers
with
an
upper
critical
solution
temperature,
NIR-responsive
cross-linkers
containing
coumarin
groups,
which
were
gelated
through
bioorthogonal
inverse
electron
demand
Diels–Alder
reactions.
exhibited
quick
gelation
times
(120–800
s)
high
loading
efficiencies
(>90%).
demonstrated
higher
percentage
release
at
37
°C
than
25
due
enhanced
swelling
behavior
temperature-responsive
PNAGA
moieties.
Upon
NIR
irradiation,
released
most
entrapped
doxorubicin
(DOX)
(97%)
owing
cleavage
NIR-sensitive
ester
groups.
displayed
biocompatibility
normal
cells,
while
induced
antitumor
activity
toward
cells.
DOX/hydrogels
treated
light
inhibited
growth
in
nude
mice
bearing
tumors.
In
addition,
injected
emitted
red
fluorescence
upon
excitation
green
wavelength,
so
delivery
degradation
vivo
could
tracked
xenograft
model.