Flexible
piezoresistive
sensors
with
biological
structures
are
widely
exploited
for
high
sensitivity
and
detection.
However,
the
conventional
bionic
structure
pressure
usually
suffer
from
irreconcilable
conflicts
between
wide
detection
response
range.
Herein,
a
triple
periodic
minimum
surface
(TPMS)
sensor
is
proposed
based
on
parametric
structural
design
3D
printing
techniques.
Upon
tailoring
of
dedicated
parameters,
resulting
exhibit
superior
compression
durability,
sensitivity,
ultra-high
range,
that
enabling
it
meets
needs
various
scenes.
As
model
system,
TPMS
40.5%
porosity
exhibits
an
(132
kPa-1
in
0-5.7
MPa),
strain
range
(0-31.2%),
repeatability
durability
(1000
cycles
4.41
MPa,
10000
s
1.32
low
limit
(1%
80
kPa).
The
stress/strain
distributions
have
been
identified
using
finite
element
analysis.
Toward
practical
applications,
can
be
applied
to
detect
human
activity
health
monitoring
(i.e.,
voice
recognition,
finger
pressure,
sitting,
standing,
walking,
falling
down
behaviors).
synergistic
effects
MWCNTs
MXene
conductive
network
also
ensure
composite
further
being
utilized
electromagnetic
interference
shielding
applications.
Abstract
Due
to
their
potential
applications
in
physiological
monitoring,
diagnosis,
human
prosthetics,
haptic
perception,
and
human–machine
interaction,
flexible
tactile
sensors
have
attracted
wide
research
interest
recent
years.
Thanks
the
advances
material
engineering,
high
performance
been
obtained.
Among
representative
pressure
sensing
materials,
2D
layered
nanomaterials
many
properties
that
are
superior
those
of
bulk
more
suitable
for
sensors.
As
a
class
inorganic
compounds
materials
science,
MXene
has
excellent
electrical,
mechanical,
biological
compatibility.
MXene‐based
composites
proven
be
promising
candidates
due
stretchability
metallic
conductivity.
Therefore,
great
efforts
devoted
development
sensor
applications.
In
this
paper,
controllable
preparation
characterization
introduced.
Then,
progresses
on
fabrication
strategies,
operating
mechanisms,
device
composite‐based
sensors,
including
piezoresistive
capacitive
piezoelectric
triboelectric
reviewed.
After
that,
material‐based
electronics
motion
healthcare,
artificial
intelligence
discussed.
Finally,
challenges
perspectives
summarized.
Advanced Functional Materials,
Год журнала:
2023,
Номер
33(44)
Опубликована: Июль 7, 2023
Abstract
Electronic
skins
(E‐skins)
capable
of
biomechanical/bioelectrical
signal
acquisition
are
intensively
pursued
for
human‐centered
healthcare
daily
life.
For
practical
use,
it
is
highly
desired,
yet
challenging,
to
mass‐produce
E‐skins
that
soft
and
breathable
wearing
comfort,
skin‐adhesive
robust
acquisition,
multi‐signal
sensing
enhanced
data.
Herein,
a
scalable
fabrication
strategy
bioinspired
E‐skin
(SPRABE‐skin)
with
multi‐layered
architecture
reported
integrates
skin‐like
softness,
self‐protection,
self‐adhesion,
breathability,
bimodal
in
single
patch.
The
fibrous
thermoplastic
polyurethane
(TPU)
scaffold
endows
the
SPRABE‐skin
tissue‐like
softness
(Young's
modulus
3.36
MPa)
stretchability,
good
permeability
water
vapor,
self‐protection
against
adverse
loading
events.
A
strain
layer
composed
MXene‐carbon
nanotubes@TPU
(MXene‐CNT@TPU)
composition
exhibits
ultra‐high
sensitivity
wide
range
(gauge
factor
at
485%
reaches
63
494).
An
electrode
made
MXene‐waterborne
(MXene‐WPU)
provides
adhesive
electrode‐skin
interface,
which
enables
biopotentials,
such
as
electrocardiograph
(ECG),
electromyograph
(EMG),
electroencephalo‐graph
(EEG),
improved
fidelity
even
under
various
dynamic
interferences.
Finally,
based
system
demonstrated
realizes
wireless,
long‐duration,
monitoring
ECG
running
activities.
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.
