Water
drives
the
electronic
device
adhesion
interface
to
debonding,
leading
attenuation
or
distortion
of
signals
and
limiting
potential
for
underwater
applications.
Here,
a
hydrophobic
ion-gel
(HIG)
modeled
on
barnacle
gum
was
developed
by
encapsulating
ionic
liquid
[BMIm]Cl
in
copolymer
formed
free
radical
quenching
lignin-carbohydrate
complex
(LCC)
polythioctic
acid
(PTA).
Due
dynamic
bonding
action
promote
strong
adhesion,
lining
hydration
structure
that
improves
stability,
resulting
HIG
exhibits
superextensibility
(maximum
10,286%),
stable
conductivity
(180
mS
m-1),
15
N/cm2),
rapid
self-healing.
It
can
be
used
as
single-electrode
triboelectric
sensor
without
need
additional
adhesives
encapsulation
design
simply
adheres
glove,
enabling
durable
sensing
communication
under
water.
The
proposed
strategy
offers
novel
possibility
material
flexible
wearable
electronics.
Supramolecular Materials,
Год журнала:
2023,
Номер
2, С. 100032 - 100032
Опубликована: Фев. 10, 2023
Adhesive
bonding
to
diverse
substances
is
vital
a
great
number
of
the
established,
cutting-edge
and
emerging
applications.
We
have
witnessed,
in
last
few
years,
transformative
progress
achieving
robust
adhesive
tunable
debonding
behavior,
which
mostly
employing
supramolecular
forces.
Among
forces,
contribution
hydrogen-bonds
(H-bonds)
adhesives,
on
modality
directionality,
selectivity
sensitivity,
can
function
as
nano-scaled
agents
for
improved
interfacial
interactions,
thus
paved
novel
perspectives
design
creation
glue
materials
with
outstanding
performance.
On
account
dynamic
reversible
feature,
characteristic
principally
determined
H-bonding
(macro)molecules
could
be
employed
platform
affording
attaching,
connecting
demand
disconnecting,
arising
from
combination
adhesion/cohesion
process
via
interactions
responsive
characteristics.
Thus,
H-bonded
adhesives
abundant
molecular
configuration
furnish
rich
toolbox
that
fulfill
universal
yet
specific
needs
unique
advantages,
demonstrating
opportunities
fundamental
researches
practical
Herein
we
outline
summarize
attaching/detaching,
applications
advanced
materials.
propose
guidance
further
designing
concert
biomedical
science,
physics,
mechanical
electric,
informatics
or
robotics
promising
future.
Materials Horizons,
Год журнала:
2023,
Номер
10(3), С. 928 - 937
Опубликована: Янв. 1, 2023
This
work
synthesizes
three
kinds
of
polyurethane
elastomers
to
verify
the
relationship
between
macroscopic
and
viscoelastic
properties
with
given
branched
factor
work.
Weak
adhesion
and
lack
of
underwater
self-healability
hinder
advancing
soft
iontronics
particularly
in
wet
environments
like
sweaty
skin
biological
fluids.
Mussel-inspired,
liquid-free
ionoelastomers
are
reported
based
on
seminal
thermal
ring-opening
polymerization
a
biomass
molecule
α-lipoic
acid
(LA),
followed
by
sequentially
incorporating
dopamine
methacrylamide
as
chain
extender,
N,N'-bis(acryloyl)
cystamine,
lithium
bis(trifluoromethanesulphonyl)
imide
(LiTFSI).
The
exhibit
universal
to
12
substrates
both
dry
states,
superfast
self-healing
underwater,
sensing
capability
for
monitoring
human
motion,
flame
retardancy.
self-repairabilitiy
prolongs
over
three
months
without
deterioration,
sustains
even
when
mechanical
properties
greatly
increase.
unprecedented
self-mendability
benefits
synergistically
from
the
maximized
availability
dynamic
disulfide
bonds
diverse
reversible
noncovalent
interactions
endowed
carboxylic
groups,
catechols,
LiTFSI,
along
with
prevented
depolymerization
LiTFSI
tunability
strength.
ionic
conductivity
reaches
1.4
×
10-6
-2.7
10-5
S
m-1
because
partial
dissociation
LiTFSI.
design
rationale
offers
new
route
creating
wide
range
LA-
sulfur-derived
supramolecular
(bio)polymers
superior
adhesion,
healability,
other
functionalities,
thus
has
technological
implications
coatings,
adhesives,
binders
sealants,
biomedical
engineering
drug
delivery,
wearable
flexible
electronics,
human-machine
interfaces.
Bioactive Materials,
Год журнала:
2024,
Номер
35, С. 259 - 273
Опубликована: Фев. 7, 2024
Periodontitis,
a
common
chronic
inflammatory
disease
caused
by
pathogenic
bacteria,
can
be
treated
with
diverse
biomaterials
loading
drugs,
cytokines
or
proteins.
However,
these
often
show
unsatisfactory
therapeutic
efficiency
due
to
their
poor
adhesion,
short
residence
time
in
the
wet
and
dynamic
oral
cavity
emerging
drug
resistance.
Here
we
report
wet-responsive
methacrylated
gelatin
(GelMA)-stabilized
co-enzyme
polymer
poly(α-lipoic
acid)
(PolyLA)-based
elastic
patch
water-induced
adhesion
softening
features.
In
PolyLA-GelMA,
multiple
covalent
hydrogen-bonding
crosslinking
between
PolyLA
GelMA
prevent
depolymerization
slow
down
dissociation
of
water,
allowing
durable
periodontal
tissue
continuous
release
LA-based
bioactive
small
molecule
periodontitis
wound
without
resorting
external
drugs.
Compared
undifferentiated
behavior
traditional
adhesives,
this
demonstrates
favorable
pocket
insertion
ability
its
non-adhesion
rigidity
dry
environment.
vitro
studies
reveal
that
PolyLA-GelMA
exhibits
satisfactory
antibacterial,
blood
compatibility
ROS
scavenging
abilities.
model
rat
periodontitis,
inhibits
alveolar
bone
resorption
accelerates
healing
regulating
microenvironment.
This
biomacromolecule-stabilized
coenzyme
provides
new
option
promote
treatment.
Abstract
Adhesive
materials
have
played
an
essential
role
in
the
history
of
humanity.
Natural
adhesives
composed
low‐molecular‐weight
monomers
been
overshadowed
by
modern
petroleum‐based
glues.
With
development
green
economy,
demand
for
eco‐friendly
has
increased.
Herein,
two
natural
biocompatible
compounds,
namely
thioctic
acid
(
TA
)
and
malic
MA
),
are
selected
to
prepare
a
high‐performance
pressure‐sensitive
adhesive
poly[
‐
].
This
can
be
quantitatively
obtained
via
simple
mixing
heating
process.
Poly[
]
shows
interesting
useful
properties,
including
reversible
flexibility,
high
elongation,
good
self‐healing,
owing
its
dynamic
polymerization
pattern
cross‐linking
behavior.
exhibits
excellent
adhesion
performance
under
various
extreme
conditions,
such
as
at
low
temperatures
hot
water.
High
values
shear
strength
(3.86
MPa),
peel
(7.90
N
cm
−1
loop
tack
(10.60
tensile
(1.02
resistance
(1628
h)
demonstrate
strong
effect
Additionally,
regenerated
monomer
forms
from
with
recovery
rate
(>90%).
Meanwhile,
anti‐bacterial
behavior
TA‐MA
is
recorded.
study
not
only
reported
new
but
also
fully
displayed
feasibility
using
small
molecules
achieve
robust
surface
adhesion.
Journal of Materials Chemistry B,
Год журнала:
2024,
Номер
12(19), С. 4574 - 4583
Опубликована: Янв. 1, 2024
Lipoic
acid
(LA)
is
a
versatile
antioxidant
that
has
been
used
in
the
treatment
of
various
oxidation-reduction
diseases
over
past
70
years.
Owing
to
its
large
five-membered
ring
tension,
dynamic
disulfide
bond
LA
highly
active,
enabling
formation
poly(lipoic
acid)
(PLA)
via
ring-opening
polymerization
(ROP).
Herein,
we
first
summarize
disulfide-mediated
ROP
strategies,
providing
basic
routes
for
designing
and
preparing
PLA-based
materials.
PLA,
as
biologically
derived,
low
toxic,
easily
modified
material,
possesses
bonds
universal
non-covalent
carboxyl
groups.
We
also
shed
light
on
biomedical
applications
materials
based
their
biological
structural
features
further
divide
recent
works
into
six
categories:
antibacterial,
anti-inflammation,
anticancer,
adhesive,
flexible
electronics,
3D-printed
tissue
scaffolds.
Finally,
challenges
future
prospects
associated
with
PLA
are
discussed.
