ACS Applied Materials & Interfaces,
Journal Year:
2024,
Volume and Issue:
16(3), P. 4035 - 4044
Published: Jan. 10, 2024
Flexible
wearable
sensors
have
demonstrated
enormous
potential
in
various
fields
such
as
human
health
monitoring,
soft
robotics,
and
motion
detection.
Among
them,
based
on
ionogels
garnered
significant
attention
due
to
their
wide
range
of
applications.
However,
the
fabrication
with
high
sensitivity
stable
autonomous
adhesion
remains
a
challenge,
thereby
limiting
Herein,
we
present
an
advanced
ionogel
(PACG-MBAA)
exceptional
performances
multiple
hydrogen
bonds,
which
is
fabricated
through
one-step
radical
polymerization
N-acryloylglycine
(ACG)
1-ethyl-3-methylimidazolium
ethyl
sulfate
(EMIES)
presence
N,N′-methylenebis(acrylamide)
(MBAA).
Compared
(PAA-MBAA)
formed
by
acrylic
acid
(AA)
EMIES,
resulting
exhibits
tunable
mechanical
strength
(35–130
kPa)
Young's
modulus
comparable
skin
(60–70
owing
bonds
formation.
Importantly,
they
demonstrate
substrates
good
self-healing
capabilities.
Furthermore,
ionogel-based
sensor
shows
(with
gauge
factor
up
6.16
tensile
300–700%),
enabling
detection
both
gross
subtle
movements
daily
activities.
By
integration
International
Morse
code,
enables
encryption,
decryption,
transmission
information,
thus
expanding
its
application
prospects.
Materials Horizons,
Journal Year:
2023,
Volume and Issue:
10(8), P. 2800 - 2823
Published: Jan. 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.
Materials Science and Engineering R Reports,
Journal Year:
2023,
Volume and Issue:
154, P. 100734 - 100734
Published: May 15, 2023
The
application
of
wearable
sensors
in
domains
related
to
healthcare
systems,
human
motion
detection,
robotics,
and
human–machine
interactions
has
attracted
significant
attention.
Because
these
applications
require
stretchable,
flexible,
non-invasive
materials,
polymer
composites
are
now
at
the
forefront
research
aimed
preparing
innovative
sensors.
Three-dimensional
(3D)
printing
techniques
can
be
used
obtain
highly
customised
scalable
fabricate
sensors,
which
is
a
challenging
task
for
conventional
fabrication
techniques.
This
review
provides
insights
into
prospects
commonly
conductive
nanomaterials
3D
prepare
devices.
Subsequently,
progress,
sensing
mechanisms,
performance
3D-printed
such
as
strain,
pressure,
temperature,
humidity
discussed.
In
addition,
novel
multifunctional
multi-directional,
multi-modal,
self-healable,
self-powered,
situ
printed,
ultrasonic
highlighted.
challenges
future
trends
further
development
clarified.
Advanced Functional Materials,
Journal Year:
2022,
Volume and Issue:
32(35)
Published: June 22, 2022
Abstract
Stretchable
conductors
with
the
combination
of
high
elasticity
and
electric
conductivity
have
long
been
pursued
in
soft
electronics.
Liquid
metals
(LMs),
whose
mechanical
properties
match
well
elastomeric
matrix,
successfully
applied
robotics,
electronic
skins
wearable
devices.
But
it
remains
challenging
to
develop
conductive
composite
elastomers
LMs
reversible
adhesion
self‐healing.
Herein,
EGaIn
droplets
are
uniformly
dispersed
into
elastomer,
which
contain
dynamic
disulfide
endow
elastomer
thermal
processability,
recyclability,
wet
adhesion,
With
content
≥40
vol.%,
resultant
shows
1.3
×
104
S
m
−1
,
self‐healing
8.0
h,
strength
up
670
kPa
after
curing
for
2.0
h.
When
serving
as
adhesive,
can
easily
adhere
metal
electrode
light
LED
even
when
stretched
50%.
self‐adhesive
bioelectrode,
also
detect
human
electromyography
signals.
Thus,
not
only
may
this
study
provide
a
new
platform
designing
self‐adhesive,
self‐healing,
liquid
metals,
but
their
promise
facileness
building
damage‐endurable
electronics
applying
human–machine
interfaces.
Chemical Reviews,
Journal Year:
2023,
Volume and Issue:
124(3), P. 722 - 767
Published: Dec. 29, 2023
Bioelectronic
devices
are
designed
to
translate
biological
information
into
electrical
signals
and
vice
versa,
thereby
bridging
the
gap
between
living
world
electronic
systems.
Among
different
types
of
bioelectronics
devices,
wearable
implantable
biosensors
particularly
important
as
they
offer
access
physiological
biochemical
activities
tissues
organs,
which
is
significant
in
diagnosing
researching
various
medical
conditions.
Organic
conducting
semiconducting
materials,
including
polymers
(CPs)
graphene
carbon
nanotubes
(CNTs),
some
most
promising
candidates
for
biosensors.
Their
unique
electrical,
electrochemical,
mechanical
properties
bring
new
possibilities
that
could
not
be
realized
by
utilizing
metals-
or
silicon-based
analogues.
The
use
organic-
carbon-based
conductors
development
has
emerged
a
rapidly
growing
research
field,
with
remarkable
progress
being
made
recent
years.
such
materials
addresses
issue
mismatched
well
improvement
accuracy
fidelity
transferred
information.
In
this
review,
we
highlight
advances
field
provide
insights
organic
(semi)conducting
materials'
relate
these
their
applications
wearable/implantable
We
also
perspective
on
potential
exciting
future
developments
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
36(25)
Published: April 4, 2024
Hydrogel-based
electronics
have
inherent
similarities
to
biological
tissues
and
hold
potential
for
wearable
applications.
However,
low
conductivity,
poor
stretchability,
nonpersonalizability,
uncontrollable
dehydration
during
use
limit
their
further
development.
In
this
study,
projection
stereolithography
3D
printing
high-conductive
hydrogel
flexible
passive
wireless
sensing
is
reported.
The
prepared
photocurable
silver-based
rapidly
planarized
into
antenna
shapes
on
substrates
using
surface
stereolithography.
After
partial
dehydration,
silver
flakes
within
the
circuits
form
sufficient
conductive
pathways
achieve
high
conductivity
(387
S
cm
Nano Energy,
Journal Year:
2024,
Volume and Issue:
127, P. 109785 - 109785
Published: May 23, 2024
Biodegradable
Triboelectric
Nanogenerators
(B-TENGs)
have
emerged
as
a
groundbreaking
technology
with
the
potential
to
revolutionize
healthcare,
particularly
in
field
of
self-powered
implanted
medical
devices.
This
review
explains
fundamental
role
B-TENGs
addressing
critical
need
for
sustainable
energy
sources
power
implantable
Beginning
an
exploration
significance
devices
emphasizes
necessity
biodegradable
and
solutions.
Through
in-depth
examination
principles
TENGs
their
integration
both
traditional
materials,
highlights
design
considerations
essential
development.
The
discusses
diverse
array
materials
employed
various
layers
B-TENGs,
including
active
layers,
electrodes,
associated
signal
conditioning
circuits.
evaluation
performance
enabling
self-sustaining
devices,
promising
outlook
healthcare
advancement
through
these
innovative
technologies.
Moreover,
critically
assesses
lifespan
B-TENG
addresses
concerns
regarding
device
durability.
By
identifying
challenges
practical
implementation
commercialization
offers
insights
into
overcoming
barriers
widespread
adoption,
thereby
facilitating
mainstream
practices.
Despite
significant
progress,
acknowledges
current
facing
provides
perspectives
on
Finally,
this
paper
underscores
transformative
advancing
predicting
future
where
could
greatly
impact
patient
care
while
reducing
reliance
conventional
sources.
