Hydrogels
possessing
both
conductive
characteristics
and
notable
self-healing
to
achieve
high
wound
closure
effectiveness
is
highly
desirable
in
clinical
applications.
In
this
work,
the
stretchable
hydrogel
dressings
were
designed
through
dual-dynamic-bond
cross-linking.
A
stable
tricomplex
molecule
(PA@Fe)
could
be
formed
by
pH-sensitive
coordinate
bond
(catechol-Fe)
between
catechol
groups
PA
ferric
ions
(Fe3+).
And
hydrogels
with
properties
fabricated
cross-linking
of
aldehyde
PA@Fe
gelatin
dynamic
Schiff
base
bonds
integration
poly(3,4-ethylenedioxythiophene):poly(styrene
sulfonate)
(PEDOT:PSS).
The
as-prepared
exhibited
good
self-healing,
adhesive
ability,
biocompatibility,
hemostatic,
electrical
conductivity.
vivo
evaluation
a
full-thickness
skin
model
revealed
post-wound-closure
care
smart
hydrogels,
demonstrating
its
great
potential
dealing
wounds.
Molecules,
Год журнала:
2025,
Номер
30(2), С. 207 - 207
Опубликована: Янв. 7, 2025
The
scientific
interest
in
the
chemical
modification
of
chitosan
to
increase
its
solubility
and
application
has
led
conjugation
with
Schiff
bases,
which
are
interesting
scaffolds
endowed
diverse
biological
properties.
resultant
chitosan-based
bases
(CSBs)
widely
studied
literature
due
myriad
activities
exerted,
both
catalytic
biological,
including
anticancer,
anti-inflammatory,
antioxidant,
especially
antimicrobial
ones.
Antimicrobial
resistance
(AMR)
is
one
major
public
health
challenges
twenty-first
century
because
it
represents
a
threat
prevention
treatment
growing
number
bacterial,
parasitic,
viral,
fungal
infections
that
no
longer
treatable
available
drugs.
Thus,
this
review,
we
present
brief
outline
CSBs
as
well
their
complexes
metals,
particular
focus
on
recent
regarding
effect
these
captivating
derivatives.
Angewandte Chemie,
Год журнала:
2024,
Номер
136(24)
Опубликована: Апрель 8, 2024
Abstract
Environmentally
friendly
crosslinked
polymer
networks
feature
degradable
covalent
or
non‐covalent
bonds,
with
many
of
them
manifesting
dynamic
characteristics.
These
attributes
enable
convenient
degradation,
facile
reprocessibility,
and
self‐healing
capabilities.
However,
the
inherent
instability
these
crosslinking
bonds
often
compromises
mechanical
properties
networks,
limiting
their
practical
applications.
In
this
context,
environmentally
dual‐crosslinking
(denoted
EF‐DCPNs)
have
emerged
as
promising
alternatives
to
address
challenge.
materials
effectively
balance
need
for
high
ability
degrade,
recycle,
and/or
self‐heal.
Despite
potential,
investigations
into
EF‐DCPNs
remain
in
nascent
stages,
several
gaps
limitations
persist.
This
Review
provides
a
comprehensive
overview
synthesis,
properties,
applications
recent
progress
EF‐DCPNs.
Firstly,
synthetic
routes
rich
variety
possessing
two
distinct
types
(i.e.,
imine,
disulfide,
ester,
hydrogen
bond,
coordination
other
bonds)
are
introduced.
Subsequently,
complex
structure‐
nature‐dependent
mechanical,
thermal,
electrical
discussed,
followed
by
exemplary
electronics
biotechnology.
Finally,
future
research
directions
rapidly
evolving
field
outlined.
ACS Applied Polymer Materials,
Год журнала:
2024,
Номер
6(7), С. 3966 - 3974
Опубликована: Апрель 1, 2024
The
development
of
soft
eutectogels
that
are
highly
transparent,
stretchable,
self-healing,
self-adhesive,
recyclable,
and
can
be
used
for
underwater
sensing
applications
is
desirable.
Here,
with
multiple
functionalities
prepared
by
the
one-step
copolymerization
rigid
polymerizable
ionic
liquids
acrylate
monomers
in
a
hydrophobic
deep
eutectic
solvent
consisting
thymol/coumarin.
Poly(ionic
liquids)/polyacrylates
to
construct
tough
backbone
eutectogel
networks,
whereas
components
introduced
into
polymer
matrix
impart
dynamic
cross-linking
properties.
Overall,
network
has
excellent
hydrophobicity
intermolecular
interactions,
resulting
water
resistance,
mechanical
strength,
self-adhesion
behavior
even
aqueous
environments.
as
an
sensor
good
capability
detect
strain,
touch,
changes
surrounding
environment.
Moreover,
dynamically
cross-linked
easily
recycled
through
solvent.
methodology
proposed
this
study
holds
promise
future
fields
sensors,
wet
adhesives,
flexible
electronics.
Angewandte Chemie International Edition,
Год журнала:
2024,
Номер
63(24)
Опубликована: Апрель 8, 2024
Environmentally
friendly
crosslinked
polymer
networks
feature
degradable
covalent
or
non-covalent
bonds,
with
many
of
them
manifesting
dynamic
characteristics.
These
attributes
enable
convenient
degradation,
facile
reprocessibility,
and
self-healing
capabilities.
However,
the
inherent
instability
these
crosslinking
bonds
often
compromises
mechanical
properties
networks,
limiting
their
practical
applications.
In
this
context,
environmentally
dual-crosslinking
(denoted
EF-DCPNs)
have
emerged
as
promising
alternatives
to
address
challenge.
materials
effectively
balance
need
for
high
ability
degrade,
recycle,
and/or
self-heal.
Despite
potential,
investigations
into
EF-DCPNs
remain
in
nascent
stages,
several
gaps
limitations
persist.
This
Review
provides
a
comprehensive
overview
synthesis,
properties,
applications
recent
progress
EF-DCPNs.
Firstly,
synthetic
routes
rich
variety
possessing
two
distinct
types
(i.e.,
imine,
disulfide,
ester,
hydrogen
bond,
coordination
other
bonds)
are
introduced.
Subsequently,
complex
structure-
nature-dependent
mechanical,
thermal,
electrical
discussed,
followed
by
exemplary
electronics
biotechnology.
Finally,
future
research
directions
rapidly
evolving
field
outlined.
