Single-network
hydrogels
are
often
too
fragile
to
withstand
mechanical
loading,
whereas
double-network
typically
exhibit
significant
hysteresis
during
cyclic
stretching-releasing
process
due
the
presence
of
a
sacrificial
network.
Consequently,
it
is
considerable
challenge
for
designing
that
both
low
in
and
high
toughness
applications
requiring
dynamic
loads.
Herein,
study
introduced
novel
"sliding
tangle
island"
strategy
creating
tough
low-hysteresis
hydrogels,
which
prepared
through
situ
polymerization
highly
concentrated
acrylamides
(AM)
form
numerous
entanglements
within
MXene
spacing
without
any
chemical
crosslinker.
The
entangled
with
long
polyacrylamide
(PAM)
chains
island
served
as
relay
station
transmit
stress
neighboring
molecular
chains.
This
mechanism
helps
alleviate
concentration
enhances
energy
dissipation
efficiency,
thereby
reducing
hysteresis.
resulting
hydrogel
exhibited
exceptional
properties,
including
stretchability
(≈900%),
(less
than
7%),
(1.34
MJ
m
ACS Applied Materials & Interfaces,
Год журнала:
2023,
Номер
15(3), С. 4516 - 4526
Опубликована: Янв. 13, 2023
High-efficiency
electromagnetic
interference
(EMI)
shielding
and
heat
dissipation
synergy
materials
with
flexible,
robust,
environmental
stability
are
urgently
demanded
in
next-generation
integration
electronic
devices.
In
this
work,
we
report
the
lamellar
MXene/Aramid
nanofiber
(ANF)
composite
films,
which
establish
a
nacre-like
structure
for
EMI
by
using
intermittent
filtration
strategy.
The
MXene/ANF
film
filled
50
wt
%
MXene
demonstrates
enhanced
mechanical
properties
strength
of
230.5
MPa,
an
elongation
at
break
6.2%,
toughness
11.8
MJ·m3
(50
MXene).
These
remarkable
attributed
to
hydrogen
bonding
highly
oriented
structure.
Furthermore,
due
formation
conductive
network,
shows
outstanding
conductivity
624.6
S/cm,
effectiveness
(EMI
SE)
44.0
dB,
superior
specific
SE
value
(SSE/t)
18847.6
dB·cm2/g,
is
better
than
vacuum
film.
Moreover,
also
great
thermal
0.43
W/m·K.
multifunctional
films
high-performance
shielding,
dissipation,
joule
heating
show
potential
field
aerospace,
military,
microelectronics,
microcircuit,
smart
wearable
electronics.
The Innovation,
Год журнала:
2023,
Номер
4(5), С. 100485 - 100485
Опубликована: Июль 25, 2023
•Flexible
electronics
can
revolutionize
cardiovascular
healthcare
monitoring.•Flexible
aid
in
promptly
identifying
disease
indicators,
enabling
better
personalized
treatment.•Further
developments
include
wireless
design,
miniaturization,
multifunction,
artificial
intelligence-assisted
diagnosis,
virtual
medicine,
customized
healthcare,
etc.
Cardiovascular
diseases
(CVDs)
are
one
of
the
most
urgent
threats
to
humans
worldwide,
which
responsible
for
almost
one-third
global
mortality.
Over
last
decade,
research
on
flexible
monitoring
and
treatment
CVDs
has
attracted
tremendous
attention.
In
contrast
conventional
medical
instruments
hospitals
that
usually
bulky,
hard
move,
monofunctional,
time-consuming,
capable
continuous,
noninvasive,
real-time,
portable
monitoring.
Notable
progress
been
made
this
emerging
field,
thus
a
number
significant
achievements
concomitant
prospects
deserve
attention
practical
implementation.
Here,
we
comprehensively
review
latest
CVDs,
focusing
new
functions
provided
by
electronics.
First,
characteristics
foundation
their
combination
briefly
reviewed.
Then,
four
representative
applications
elaborated:
blood
pressure
(BP)
monitoring,
electrocardiogram
(ECG)
echocardiogram
direct
epicardium
Their
operational
principles,
progress,
merits
demerits,
future
efforts
discussed.
Finally,
remaining
challenges
opportunities
outlined.
Chemical Society Reviews,
Год журнала:
2024,
Номер
53(3), С. 1316 - 1353
Опубликована: Янв. 1, 2024
Low-dimensional
nanostructures,
with
their
small
size,
unique
characteristics,
flexible/elastic
adaptability,
and
effective
vertical
stacking
capability,
play
a
crucial
role
in
advancing
monolithic
3D-integrated
flexible/stretchable
systems.
Abstract
Sensing
devices
are
key
nodes
for
information
detection,
processing,
and
conversion
widely
applied
in
different
fields
such
as
industrial
production,
environmental
monitoring,
defense.
However,
increasing
demand
of
these
has
complicated
the
application
scenarios
diversified
detection
targets
thereby
promoting
continuous
development
sensing
materials
methods.
In
recent
years,
Ti
n+1
C
n
T
x
(
=
1,
2,
3)
MXenes
with
outstanding
optical,
electrical,
thermal,
mechanical
properties
have
been
developed
ideal
candidates
to
apply
physical,
chemical,
biological
fields.
this
review,
depending
on
optical
electrical
signals,
we
systematically
summarize
nine
categories
sensors
strain,
gas,
fluorescence
sensors.
The
excellent
allow
its
further
emerging
intelligent
bionic
devices,
including
smart
flexible
E-skin,
neural
network
coding
learning,
soft
robot,
well
artificial
eardrum,
which
all
discussed
briefly
review.
Finally,
present
a
positive
outlook
potential
future
challenges
perspectives
MXene-based
shown
vigorous
momentum
applications
can
drive
an
number
new
technologies.
Early
transition
metals
based
2D
carbides,
nitrides
and
carbonitrides
nanomaterials
are
known
as
MXenes,
a
novel
extensive
new
class
of
materials
family.
Since
the
first
accidently
synthesis
discovery
Ti3
C2
in
2011,
more
than
50
additional
compositions
have
been
experimentally
reported,
including
at
least
eight
distinct
methods
also
100
stoichiometries
theoretically
studied.
Due
to
its
distinctive
surface
chemistry,
graphene
like
shape,
metallic
conductivity,
high
hydrophilicity,
outstanding
mechanical
thermal
properties,
redox
capacity
affordable
with
mass-produced
nature,
this
diverse
MXenes
tremendous
scientific
technological
significance.
In
review,
we'll
come
across
MXene
possible
methods,
their
advantages,
limitations
future
suggestions,
chemistry
related
selected
properties
potential
sensing
applications,
which
will
help
us
explain
why
family
is
growing
very
fast
compared
other
families.
Secondly,
problems
that
further
improve
commercialization
sensors
examined,
many
advances
commercializing
proposed.
At
end,
go
through
current
challenges,
suggestions.
Nano-Micro Letters,
Год журнала:
2024,
Номер
16(1)
Опубликована: Фев. 27, 2024
Abstract
Flexible
sensors
based
on
MXene-polymer
composites
are
highly
prospective
for
next-generation
wearable
electronics
used
in
human–machine
interfaces.
One
of
the
motivating
factors
behind
progress
flexible
is
steady
arrival
new
conductive
materials.
MXenes,
a
family
2D
nanomaterials,
have
been
drawing
attention
since
last
decade
due
to
their
high
electronic
conductivity,
processability,
mechanical
robustness
and
chemical
tunability.
In
this
review,
we
encompass
fabrication
MXene-based
polymeric
nanocomposites,
structure–property
relationship,
applications
sensor
domain.
Moreover,
our
discussion
not
only
limited
design,
mechanism,
various
modes
sensing
platform,
but
also
future
perspective
market
throughout
world.
With
article,
intend
fortify
bond
between
matrices
MXenes
thus
promoting
swift
advancement
MXene-sensors
technologies.
Advanced Functional Materials,
Год журнала:
2023,
Номер
33(13)
Опубликована: Янв. 17, 2023
Abstract
The
transfer
functions
of
the
widely
used
pressure
sensors
do
not
exhibit
desired
linearity,
which
limits
their
practicability
in
many
fields,
such
as
Internet
Things
and
artificial
intelligence.
Herein,
MXene/cellulose
nanofiber
composite
membrane‐based
linear
nanofluidic
are
demonstrated.
nanoscale
gaps
between
MXene
laminates
restrict
movement
electrolyte
realize
selective
transport
ions,
based
on
mechanical
signals
can
be
converted
into
electric
energy
for
self‐powering.
In
particular,
generated
voltage
current
directly
proportional
to
applied
pressure.
introduction
high‐strength
cellulose
nanofibers
only
expands
detection
range
sensor
but
also
achieves
continuous
adjustment
nano‐gap
laminates,
optimizes
sensitivity
device.
feasibility
further
optimization
through
modulation
surface
functional
groups,
concentration,
device
assembly
method
is
proposed.
This
2D
nanofluid
provides
an
important
approach
manufacture
portable
wearable
electronic
devices
applications
fields.
ACS Nano,
Год журнала:
2024,
Номер
18(5), С. 4269 - 4286
Опубликована: Янв. 25, 2024
The
repair
of
diabetic
wounds
remains
challenging,
primarily
due
to
the
high-glucose-derived
immune
inhibition
which
often
leads
excessive
inflammatory
response,
impaired
angiogenesis,
and
heightened
susceptibility
infection.
However,
means
reduce
immunosuppression
regulate
conversion
M2
phenotype
macrophages
under
a
high-glucose
microenvironment
using
advanced
biomaterials
for
are
not
yet
fully
understood.
Herein,
we
report
two-dimensional
carbide
(MXene)-M2
macrophage
exosome
(Exo)
nanohybrids
(FM-Exo)
promoting
wound
by
overcoming
inhibition.
FM-Exo
showed
sustained
release
macrophage-derived
exosomes
(M2-Exo)
up
7
days
exhibited
broad-spectrum
antibacterial
activity.
In
microenvironment,
relative
single
Exo,
could
significantly
induce
optimized
M2a/M2c
polarization
ratio
activating
PI3K/Akt
signaling
pathway,
proliferation,
migration
fibroblasts,
angiogenic
ability
endothelial
cells.
full-thickness
model,
effectively
regulated
status
promoted
their
transition
phenotype,
thereby
inhibiting
inflammation,
angiogenesis
through
VEGF
secretion,
improving
proper
collagen
deposition.
As
result,
healing
process
was
accelerated,
leading
better
outcome
with
reduced
scarring.
Therefore,
this
study
introduced
promising
approach
address
developing
bioactive
nanomaterials
in
environment.
ACS Nano,
Год журнала:
2024,
Номер
18(20), С. 13184 - 13195
Опубликована: Май 6, 2024
Extending
applications
of
Ti3C2Tx
MXene
in
nanocomposites
and
across
fields
electronics,
energy
storage,
conversion,
sensor
technologies
necessitates
simple
efficient
analytical
methods.
Raman
spectroscopy
is
a
critical
tool
for
assessing
composites;
however,
high
laser
powers
temperatures
can
lead
to
the
materials'
deterioration
during
analysis.
Therefore,
an
in-depth
understanding
photothermal
degradation
changes
its
oxidation
state
required,
but
no
systematic
studies
have
been
reported.
The
primary
aim
this
study
was
investigate
lattice
through
spectroscopic
Distinct
spectral
markers
were
related
structural
alterations
within
material
after
subjecting
it
thermal-
laser-induced
degradation.
During
processes,
revealed
several
specific
steps:
decrease
number
interlayer
water
molecules,
−OH
groups,
formation
C–C
bonds,
lattice,
TiO2
nanoparticles
(first
anatase,
followed
by
rutile).
By
tracking
position
shifts
intensity
Ti3C2Tx,
that
signify
initiation
each
step
found.
This
approach
enhances
our
pathways
MXene,
facilitating
enhanced
dependable
integration
these
materials
into
devices
diverse
applications,
from
storage
sensors.
