Rigid‐Flexible Coupled Dendritic Molecule Doping: General Approach to Activate Commercial Polymers into Harsh Condition‐Tolerant Multi‐Reusable Strong Supramolecular Adhesives
Angewandte Chemie International Edition,
Год журнала:
2024,
Номер
63(45)
Опубликована: Июль 20, 2024
Abstract
Developing
functional
adhesives
combining
strong
adhesion,
good
recyclability
and
diverse
harsh‐condition
adaptability
is
a
grand
challenge.
Here,
we
introduce
general
dendritic
molecule
doping
strategy
to
activate
commercial
polymers
into
new
family
of
supramolecular
integrating
high
adhesion
strength,
ultralow
temperature,
water
resistant
multi‐reusable
properties.
Our
method
involves
rational
design
rigid‐flexible
coupled
molecule—M
4
C
8
OH
as
versatile
dopant,
while
simple
M
can
modulate
internal
external
non‐covalent
interaction
enable
H‐bonding
enhanced
interchain
cross‐linking
for
tough
cohesion
along
with
interphase
interaction.
This
endows
20
wt
%
OH‐doped
polycaprolactone
(PCL)
(PCL‐M
OH)
improved
strength
on
various
substrates
the
maximum
increase
up
2.87
times
that
PCL.
In
particular,
strengths
PCL‐M
polymethyl
methacrylate
at
25
°C
−196
reach
4.67
3.58
MPa—1.9
2.3
those
PCL
superior
most
reported
adhesives.
also
displays
markedly‐improved
multi‐usability
tolerance
against
temperature
wet
environments.
Mechanism
studies
reveal
crucial
role
molecular
structures
toward
adhesion.
be
expanded
other
polymer
matrices,
yielding
Язык: Английский
Novel Biomaterials for Wound Healing and Tissue Regeneration
ACS Omega,
Год журнала:
2024,
Номер
unknown
Опубликована: Июль 16, 2024
Skin
is
the
first
defense
barrier
of
human
body,
which
can
resist
invasion
external
dust,
microorganisms
and
other
pollutants,
ensure
that
body
maintains
homeostasis
internal
environment.
Once
skin
damaged,
health
threat
to
will
increase.
Wound
repair
environment
are
a
dynamic
process.
How
effectively
accelerate
healing
wounds
without
affecting
guarantee
repaired
tissue
retains
its
original
function
as
much
possible
has
become
research
hotspot.
With
advancement
technology,
researchers
have
combined
new
technologies
develop
prepare
various
types
materials
for
wound
healing.
This
article
introduce
developed
prepared
in
recent
years
from
three
types:
nanofibers,
composite
hydrogels,
materials.
The
paper
aims
provide
reference
related
fields
multifunctional
may
be
helpful
design
more
ideal
clinical
application,
then
achieve
better
regeneration
effects.
Язык: Английский
Fabricating Water‐Resistant and Stimuli Responsive Smart Hydrogels via Iminoboronate Chemistry
Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Сен. 20, 2024
Abstract
The
construction
and
application
of
smart
hydrogels
often
involve
balancing
the
conflicting
relationship
between
stability
dynamics.
Imine
bond,
as
a
type
dynamic
chemical
bonding,
is
commonly
used
in
diverse
since
it
can
effectively
achieve
response
to
some
external
stimuli.
However,
its
poor
thermodynamic
leads
limited
crosslinking
density
easy
degradation
water
biofluids.
To
address
this
critical
issue,
series
model
prepared
with
highly
stimuli
responsiveness
via
iminoboronate
gelation
aminoglycosides
8‐arm
PEG
terminated
2‐acetylphenylboronic
acid
pinacol
ester
[(
pin
)‐APBA].
Note
that
presence
esters,
electron‐donating
agents
hydrophobic
couplers
large
steric
hindrance,
keep
five‐membered
ring
intact
protect
nitrogen‐boron
(N─B)
coordination
bond
from
molecules,
offering
resistance
feature
hydrogels.
And
rapid
gels
(e.g.,
acid,
H
2
O
unhindered
amines)
further
confirmed
their
nature,
allowing
on‐demand
release
satisfactory
antibacterial
effect.
This
chemistry‐based
strategy
offer
new
opportunities
toward
stable
various
applications
many
fields.
Язык: Английский
Solvent-Free Partially Biobased Structural Adhesive with High Strength, Tolerance to Harsh Environments, and Multisubstrate Compatibility
ACS Applied Polymer Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 15, 2025
Язык: Английский
Transforming Commercial Polymers into Tough yet Switchable Adhesives by Trident Photoswitch Molecule Doping: Break Adhesion‐Switchability Paradox
Advanced Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Авг. 9, 2024
Here,
a
trident
molecule
doping
strategy
is
introduced
to
overcome
both
cohesion-adhesion
trade-off
and
adhesion-switchability
conflict,
transforming
commercial
polymers
into
tough
yet
photo-switchable
adhesives.
The
involves
initial
rational
design
of
new
photoswitch
molecules
namely
TAzo-3
featuring
azobenzene
hydroxy-terminated
alkyl
chains
involved
rigid-soft
tri-branch
structure,
subsequent
polycaprolactone
(PCL)
via
simple
blending.
Unique
enables
as
versatile
dopant,
not
only
regulating
the
internal
external
supramolecular
interaction
balance
cohesion
interface
adhesion
for
bonding,
but
also
affording
marked
photothermal
effect
facilitate
rapid
adhesive
melting
great
photo-switchability.
Thus,
optimal
TAzo-3-doped
PCL
(TAzo-3@P)
displays
markedly-improved
bonding
performance
on
diverse
substrates
compared
linear
azobenzene-doped
pure
PCL.
Impressively,
TAzo-3@P
polymethyl
methacrylate
(PMMA)
attains
large
room-temperature
strength
6.7
MPa
-
surpassing
most
reported
adhesives
many
PMMA,
along
with
easy
photo-induced
detachment
remarkable
switch
ratio
2.09
×
10
Язык: Английский
Hyperbranched polyborate modified HTPB adhesives with enhanced performance and lower glass transition temperature
Polymer Chemistry,
Год журнала:
2024,
Номер
unknown
Опубликована: Янв. 1, 2024
A
simple
hyperbranched
polyborate
was
used
to
modify
hydroxyl-terminated
polybutadiene
improve
its
low
polarity
and
easy
debonding.
Reduce
glass
transition
temperature
have
good
mechanical
properties
at
temperature.
Язык: Английский
Biogenic derived nanoparticles modulate mitochondrial function in cardiomyocytes
Materials Horizons,
Год журнала:
2024,
Номер
11(20), С. 4998 - 5016
Опубликована: Янв. 1, 2024
PPP
NPs
revealed
multiple
functions
with
identified
molecular
mechanisms
including
ROS
clearance
and
m6A
modification
regulation
in
alleviating
damages
presenting
therapeutic
roles
mitochondrial
sepsis-induced
cardiomyopathy.
Язык: Английский
Rigid‐Flexible Coupled Dendritic Molecule Doping: General Approach to Activate Commercial Polymers into Harsh Condition‐Tolerant Multi‐Reusable Strong Supramolecular Adhesives
Angewandte Chemie,
Год журнала:
2024,
Номер
136(45)
Опубликована: Июль 20, 2024
Abstract
Developing
functional
adhesives
combining
strong
adhesion,
good
recyclability
and
diverse
harsh‐condition
adaptability
is
a
grand
challenge.
Here,
we
introduce
general
dendritic
molecule
doping
strategy
to
activate
commercial
polymers
into
new
family
of
supramolecular
integrating
high
adhesion
strength,
ultralow
temperature,
water
resistant
multi‐reusable
properties.
Our
method
involves
rational
design
rigid‐flexible
coupled
molecule—M
4
C
8
OH
as
versatile
dopant,
while
simple
M
can
modulate
internal
external
non‐covalent
interaction
enable
H‐bonding
enhanced
interchain
cross‐linking
for
tough
cohesion
along
with
interphase
interaction.
This
endows
20
wt
%
OH‐doped
polycaprolactone
(PCL)
(PCL‐M
OH)
improved
strength
on
various
substrates
the
maximum
increase
up
2.87
times
that
PCL.
In
particular,
strengths
PCL‐M
polymethyl
methacrylate
at
25
°C
−196
reach
4.67
3.58
MPa—1.9
2.3
those
PCL
superior
most
reported
adhesives.
also
displays
markedly‐improved
multi‐usability
tolerance
against
temperature
wet
environments.
Mechanism
studies
reveal
crucial
role
molecular
structures
toward
adhesion.
be
expanded
other
polymer
matrices,
yielding
Язык: Английский
In Vitro Culture of Human Dermal Fibroblasts on Novel Electrospun Polylactic Acid Fiber Scaffolds Loaded with Encapsulated Polyepicatechin Physical Gels
Gels,
Год журнала:
2024,
Номер
10(9), С. 601 - 601
Опубликована: Сен. 20, 2024
Polyepicatechin
(PEC)
in
a
hydrogel
has
previously
shown
promise
enhancing
physiological
properties
and
scaffold
preparation.
However,
it
remains
unclear
whether
PEC-based
fibers
can
be
applied
skin
tissue
engineering
(STE).
This
study
aimed
to
synthesize
characterize
electrospun
PEC
physical
gels
polylactic
acid
(PLA)
scaffolds
(PLAloadedPECsub)
for
potential
use
as
constructs
with
human
dermal
fibroblasts
(HDFs).
was
produced
through
enzymatic
polymerization,
confirmed
by
Fourier
transform
infrared
(FTIR)
spectroscopy.
Scanning
electron
microscopy
(SEM)
demonstrated
the
feasibility
of
producing
PLAloadedPECsub
electrospinning.
The
metabolic
activity
viability
HDFs
cocultured
indicate
that
is
promising
STE.
Язык: Английский