Journal of Materials Chemistry A,
Год журнала:
2024,
Номер
12(16), С. 9371 - 9399
Опубликована: Янв. 1, 2024
We
present
a
comprehensive
review
of
the
recent
research
advances
in
field
sensors
based
on
hydrogels
with
nanofillers.
The
characteristics
and
design
strategies
nanofillers
are
highlighted
multiple
properties
conductive
nanocomposite
described.
ACS Nano,
Год журнала:
2023,
Номер
17(6), С. 5211 - 5295
Опубликована: Март 9, 2023
Humans
rely
increasingly
on
sensors
to
address
grand
challenges
and
improve
quality
of
life
in
the
era
digitalization
big
data.
For
ubiquitous
sensing,
flexible
are
developed
overcome
limitations
conventional
rigid
counterparts.
Despite
rapid
advancement
bench-side
research
over
last
decade,
market
adoption
remains
limited.
To
ease
expedite
their
deployment,
here,
we
identify
bottlenecks
hindering
maturation
propose
promising
solutions.
We
first
analyze
achieving
satisfactory
sensing
performance
for
real-world
applications
then
summarize
issues
compatible
sensor-biology
interfaces,
followed
by
brief
discussions
powering
connecting
sensor
networks.
Issues
en
route
commercialization
sustainable
growth
sector
also
analyzed,
highlighting
environmental
concerns
emphasizing
nontechnical
such
as
business,
regulatory,
ethical
considerations.
Additionally,
look
at
future
intelligent
sensors.
In
proposing
a
comprehensive
roadmap,
hope
steer
efforts
towards
common
goals
guide
coordinated
development
strategies
from
disparate
communities.
Through
collaborative
efforts,
scientific
breakthroughs
can
be
made
sooner
capitalized
betterment
humanity.
Advanced Functional Materials,
Год журнала:
2023,
Номер
33(15)
Опубликована: Фев. 7, 2023
Abstract
The
conductive
hydrogels
always
suffered
from
high
internal
friction,
large
hysteresis,
and
low
capability
of
accurately
predicting
physical
deformation,
which
seriously
restricted
their
application
in
smart
wearable
devices.
To
address
these
problems,
solvent
molecules
are
directionally
inserted
into
the
polymer
molecule
chains
via
bridge
effect
to
effectively
reduce
molecular
friction.
Moreover,
swelling
is
also
combined
eliminate
temporary
entanglements
hydrogel
system.
cooperation
between
swollen
endows
prepared
polyacrylamide
(PAM)/laponite/H
3
BO
/ethylene
glycol
(Eg)
organohydrogel
(PLBOH)
ultralow
hysteresis
(1.38%,
ε
=
100%),
ultrafast
response
(≈10
ms),
linearity
whole‐strain‐range
(
R
2
0.996)
with
a
great
sensitivity
GF
2.68
at
strain
range
0–750%).
Meanwhile,
PL
10
B
30
OH
exhibits
long‐term
stability,
excellent
stretchability,
dissipated
energy.
Furthermore,
assembled
triboelectric
nanogenerator
(TENG)
displays
an
outstanding
energy
harvesting
performance
output
voltage
200
V
size
20
mm
×
mm.
sensors
can
monitor
small
facial
expressions
human
movements,
indicating
tremendous
applications
self‐powered
intelligent
flexible
electronics
under
harsh
environmental
conditions.
ACS Nano,
Год журнала:
2023,
Номер
17(16), С. 15277 - 15307
Опубликована: Авг. 2, 2023
Soft
robotics
is
an
exciting
field
of
science
and
technology
that
enables
robots
to
manipulate
objects
with
human-like
dexterity.
can
handle
delicate
care,
access
remote
areas,
offer
realistic
feedback
on
their
handling
performance.
However,
increased
dexterity
mechanical
compliance
soft
come
the
need
for
accurate
control
position
shape
these
robots.
Therefore,
must
be
equipped
sensors
better
perception
surroundings,
location,
force,
temperature,
shape,
other
stimuli
effective
usage.
This
review
highlights
recent
progress
in
sensing
technologies
robotic
applications.
It
begins
introduction
actuation
material
selection
robotics,
followed
by
in-depth
exploration
various
types
sensors,
integration
methods,
benefits
multimodal
sensing,
signal
processing,
strategies.
A
short
description
current
market
leaders
also
included
illustrate
growing
demands
this
technology.
By
examining
latest
advancements
robots,
aims
highlight
potential
inspire
innovation
field.
Materials Horizons,
Год журнала:
2023,
Номер
10(8), С. 2800 - 2823
Опубликована: Янв. 1, 2023
Hydrogels
have
been
attracting
increasing
attention
for
application
in
wearable
electronics,
due
to
their
intrinsic
biomimetic
features,
highly
tunable
chemical-physical
properties
(mechanical,
electrical,
etc.),
and
excellent
biocompatibility.
Among
many
proposed
varieties
of
hydrogels,
conductive
polymer-based
hydrogels
(CPHs)
emerged
as
a
promising
candidate
future
sensor
designs,
with
capability
realizing
desired
features
using
different
tuning
strategies
ranging
from
molecular
design
(with
low
length
scale
10-10
m)
micro-structural
configuration
(up
10-2
m).
However,
considerable
challenges
remain
be
overcome,
such
the
limited
strain
sensing
range
mechanical
strength,
signal
loss/instability
caused
by
swelling/deswelling,
significant
hysteresis
signals,
de-hydration
induced
malfunctions,
surface/interfacial
failure
during
manufacturing/processing.
This
review
aims
offer
targeted
scan
recent
advancements
CPH
based
technology,
establishment
dedicated
structure-property
relationships
lab
advanced
manufacturing
routes
potential
scale-up
production.
The
CPHs
sensors
is
also
explored,
suggested
new
research
avenues
prospects
included.
Iontronic
pressure
sensors
are
promising
in
robot
haptics
because
they
can
achieve
high
sensing
performance
using
nanoscale
electric
double
layers
(EDLs)
for
capacitive
signal
output.
However,
it
is
challenging
to
both
sensitivity
and
mechanical
stability
these
devices.
need
microstructures
that
offer
subtly
changeable
EDL
interfaces
boost
sensitivity,
while
the
microstructured
mechanically
weak.
Here,
we
embed
isolated
ionic
gel
(IMIG)
a
hole
array
(28
×
28)
of
elastomeric
matrix
cross-link
IMIGs
laterally
enhanced
interfacial
robustness
without
sacrificing
sensitivity.
The
embedded
configuration
toughens
strengthens
skin
by
pinning
cracks
elastic
dissipation
interhole
structures.
Furthermore,
cross-talk
between
elements
suppressed
isolating
materials
designing
circuit
with
compensation
algorithm.
We
have
demonstrated
potentially
useful
robotic
manipulation
tasks
object
recognition.
Advanced Functional Materials,
Год журнала:
2023,
Номер
33(42)
Опубликована: Июль 14, 2023
Abstract
Conducting
polymer
hydrogels
are
widely
used
as
strain
sensors
in
light
of
their
distinct
skin‐like
softness,
sensitivity,
and
environmental
adaptiveness
the
fields
wearable
devices,
soft
robots,
human‐machine
interface.
However,
mechanical
electrical
properties
existing
conducting
hydrogels,
especially
fatigue‐resistance
sensing
robustness
during
long‐term
application,
unsatisfactory,
which
severely
hamper
practical
utilities.
Herein,
a
strategy
to
fabricate
with
anisotropic
structures
mechanics
is
presented
through
combined
freeze‐casting
salting‐out
process.
The
as‐fabricated
exhibit
high
fatigue
threshold
(>300
J
m
−2
),
low
Young's
modulus
(≈100
kPa),
well
(over
10
000
cycles).
Such
superior
performance
enables
application
monitor
real‐time
movement
underwater
robotics.
design
fabrication
for
reported
this
study
may
open
up
an
enticing
avenue
functional
materials
electronics
Advanced Functional Materials,
Год журнала:
2023,
Номер
33(18)
Опубликована: Фев. 25, 2023
Abstract
Wearable
strain
sensors
with
the
ability
of
detecting
physiological
activities
play
an
important
role
in
personalized
healthcare.
Electrospun
fibers
have
become
a
popular
building
block
for
wearable
due
to
their
excellent
mechanical
properties,
breathability,
and
light
weight.
In
this
review,
structure
preparation
process
electrospun
conductive
layer
are
systematically
introduced.
The
impact
materials
structures
on
following
discussion
sensing
performance
optimization
strategies
is
outlined.
Furthermore,
applications
fiber‐based
biomonitoring,
motion
detection,
human‐machine
interaction
presented.
Finally,
challenges
promising
future
directions
community
based
pointed
out.
Advanced Functional Materials,
Год журнала:
2023,
Номер
33(41)
Опубликована: Авг. 27, 2023
Abstract
Tactile
sensing
technology
is
crucial
for
soft
grippers.
Soft
grippers
equipped
with
intelligent
tactile
systems
based
on
various
sensors
can
interact
safely
the
unstructured
environments
and
obtain
precise
properties
of
objects
(e.g.,
size
shape).
It
essential
to
develop
state‐of‐the‐art
technologies
handle
different
grasping
tasks.
In
this
review,
development
techniques
robotic
hands
first
introduced.
Then,
principles
structures
types
normally
adopted
in
grippers,
including
capacitive
sensors,
piezoresistive
piezoelectric
fiber
Bragg
grating
(FBG)
vision‐based
triboelectric
other
advanced
developed
recently
are
briefly
presented.
Furthermore,
modalities
methodologies
also
described
aspects
force
measurement,
perception
object
properties,
slip
detection,
fusion
perception.
The
application
scenarios
summarized
these
technologies.
Finally,
challenges
that
need
be
tackled
discussed
perspectives
addressing
pointed
out.
Advanced Materials,
Год журнала:
2024,
Номер
36(16)
Опубликована: Янв. 23, 2024
Abstract
With
the
commercialization
of
first‐generation
flexible
mobiles
and
displays
in
late
2010s,
humanity
has
stepped
into
age
electronics.
Inevitably,
soft
multifunctional
sensors,
as
essential
components
next‐generation
electronics,
have
attracted
tremendous
research
interest
like
never
before.
This
review
is
dedicated
to
offering
an
overview
latest
emerging
trends
sensors
their
accordant
future
development
(R&D)
directions
for
coming
decade.
First,
key
characteristics
predominant
target
stimuli
are
highlighted.
Second,
important
selection
criteria
introduced.
Next,
materials/structures
identified.
Specifically,
R&D
these
envisaged
based
on
trends,
namely
i)
decoupling
multiple
stimuli,
ii)
data
processing,
iii)
skin
conformability,
iv)
energy
sources.
Finally,
challenges
potential
opportunities
discussed,
new
insights
prospects
fast‐emerging
technology.