Materials
with
desirable
properties,
including
good
deformability,
high
thermal
conductivity,
and
superior
electromagnetic
interference
(EMI)
shielding,
are
in
demand
the
modern
electronics
sector.
In
order
to
overcome
fundamental
heat
transport
EMI
shielding
limitations
soft
elastic
materials,
liquid
metal
(LM)
is
dispersed
randomly
self-healing
polyurethane
(SPU)
produce
composites
conductivity
excellent
properties
preserving
softness
deformability
of
precursor.
Furthermore,
stretching-induced
filler
alignment
method
utilized
elongate
align
LM
SPU
matrix
along
draw
direction,
resulting
simultaneous
enhancement
in-plane
effectiveness
(SE)
composites.
LM/SPU
80
wt%
loading
show
as
12.8
W·m-1·K-1
total
SE
72
dB,
respectively,
at
ratio
3.
Excellent
facilitates
its
stretching
which
makes
phonon
transfer
easier
allows
for
multiple
reflections
absorption
waves,
greatly
enhances
shielding.
addition,
prepared
healing
properties.
Therefore,
this
study
provides
a
promising
strategy
integrating
multifunctional
into
single
composite
system
application
flexible
electronics.
International Journal of Molecular Sciences,
Год журнала:
2024,
Номер
25(14), С. 7839 - 7839
Опубликована: Июль 17, 2024
Adding
carbonyl
groups
into
the
hydrogel
matrix
improves
stability
and
biocompatibility
of
hydrogels,
making
them
suitable
for
different
biomedical
applications.
In
this
review
article,
we
will
discuss
use
hydrogels
based
on
polysaccharides
modified
by
oxidation,
with
particular
attention
paid
to
introduction
groups.
These
have
been
developed
several
applications
in
tissue
engineering,
drug
delivery,
wound
healing.
The
article
discusses
mechanism
which
oxidized
can
introduce
groups,
leading
development
through
cross-linking
proteins.
tunable
mechanical
properties
improved
biocompatibility.
Hydrogels
dynamic
that
make
promising
biomaterials
various
This
paper
comprehensively
analyzes
cross-linked
proteins
derived
from
polysaccharides,
including
microparticles,
nanoparticles,
films.
these
healing
are
also
discussed.
Macromolecular Chemistry and Physics,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 6, 2025
Abstract
Formaldehyde
(FA)
is
a
common
raw
material
extensively
used
in
various
industrial
applications.
However,
FA
known
carcinogen
and
poses
significant
risks
to
human
health.
Therefore,
developing
sensitive
selective
probe
for
detecting
crucial.
Herein,
naphthalimide‐based
water‐soluble
fluorescent
polymeric
detection
of
an
aqueous
medium
at
physiological
pH
presented.
The
aromatic
hydrazine
units
present
the
side
chains
polymer
react
with
through
addition‐elimination
reaction
formation
hydrazone
derivative,
which
halts
photoelectron
transfer
(PET)
mechanism
within
polymer,
leading
“turn‐on”
green
fluorescence.
confirmed
by
electrospray
ionization
mass
spectrometry
(ESI‐MS)
analysis
model
(6‐hydrazinyl‐2‐(2‐hydroxyethyl)‐1H‐benzo[de]isoquinoline‐1,3(2H)‐dione,
SM)
FA.
sensing
PET
on–off
supported
density
functional
theory
(DFT)
calculation.
demonstrates
remarkable
sensitivity,
concentrations
as
low
1.7
µ
m
,
shows
five‐fold
fluorescence
intensity
increase
10
min
when
exposed
formaldehyde.
Additionally,
offers
over
other
analytes
via
fluorometric
methods.
This
study
represents
advancement
probes.
Abstract
This
study
focuses
on
synthesizing
an
injectable
hydrogel
(IH)
using
Moringa
oleifera
gum
(MOG)
with
multi‐aldehyde
groups
(MOG‐CHO)
and
carboxymethyl
chitosan
(CMCh)
through
a
Schiff
base
reaction
at
37
°C.
The
includes
the
optimal
concentration
of
oxidizing
agent
to
achieve
best
content
aldehydes
in
gum.
Furthermore,
oxidized
decides
least
gelation
time.
physical
properties
optimized
IH
(IH‐3‐7)
are
assessed,
including
color,
gel
content,
porosity,
load‐bearing
capacity,
syringeability,
self‐healing
capability.
Structural
characterization
is
performed
Fourier
transform
Infrared
spectroscopy
(FT‐IR)
nuclear
magnetic
(
1
H
NMR),
while
scanning
electron
microscope
(SEM)
rheometer
used
analyze
surface
morphology
rheological
properties.
IH‐3‐7
exhibits
porous
structure
35
%
porosity
interconnected
holes
1.45
4
μm
diameter.
Higher
swelling
pH
5.5
shown
by
ratio
test
conducted
phosphate
buffer
saline
(PBS)
7.4
5.5.
Ciprofloxacin
HCl
(Cipro)
loaded
into
for
release
assays,
revealing
pH‐dependent
drug
release.
In
vitro
,
cytotoxicity
assessments
L‐929
fibroblast
cell
lines
show
IH′s
biocompatibility.
Hydrolytic
degradation
PBS
also
evaluated.
Macromolecular Chemistry and Physics,
Год журнала:
2023,
Номер
224(20)
Опубликована: Авг. 12, 2023
Abstract
Dynamic
hydrogels
offer
the
opportunity
to
meet
expectations
of
smart
materials
with
adaptable
properties
such
as
stimuli
responsiveness,
self‐healing,
shear
thinning,
stress
relaxation,
dynamic
viscoelasticity,
energy
dissipation
mechanisms,
time‐dependent
adaptation,
etc.
In
past
decades,
reversible
C═N
bonds
including
imine,
hydrazone,
and
oxime
have
received
great
research
interest
in
design
polymer
networks
(DPNs).
Moreover,
can
be
well‐integrated
into
DPNs
combination
permanent
covalent
crosslinks
and/or
other
(supramolecular
interactions
bonds),
thus
outfitting
enhanced
mechanical
properties,
multiresponsiveness,
printability,
adhesion,
various
functions.
This
literature
review
first
describes
how
introduced
from
perspective
network
topologies.
The
strategies
(building
blocks,
crosslink
type
combinations,
topologies)
reported
are
then
discussed,
well
effects
crosslinking
on
hydrogel
potential
applications.
