Molecules,
Journal Year:
2023,
Volume and Issue:
28(4), P. 1627 - 1627
Published: Feb. 8, 2023
Flexible
sensors
are
the
essential
foundations
of
pressure
sensing,
microcomputer
sensing
systems,
and
wearable
devices.
The
flexible
tactile
sensor
can
sense
stimuli
by
converting
external
forces
into
electrical
signals.
signals
transmitted
to
a
computer
processing
system
for
analysis,
realizing
real-time
health
monitoring
human
motion
detection.
According
working
mechanism,
mainly
divided
four
types—piezoresistive,
capacitive,
piezoelectric,
triboelectric
sensors.
Conventional
silicon-based
often
inadequate
electronics
due
their
limited
mechanical
flexibility.
In
comparison,
polymeric
nanocomposites
stretchable,
which
makes
them
excellent
candidates
Among
promising
polymers,
conjugated
polymers
(CPs),
unique
chemical
structures
electronic
properties
that
contribute
high
conductivity,
show
great
potential
this
paper,
we
first
introduce
parameters
Then,
describe
operating
principles
resistive,
sensors,
review
based
on
polymer
were
reported
in
recent
years.
After
that,
performance
characteristics
regarding
applications
healthcare,
monitoring,
skin,
devices,
artificial
intelligence.
addition,
summarize
compare
performances
nanocomposite-based
Finally,
challenges
future
directions
Advanced Materials,
Journal Year:
2023,
Volume and Issue:
unknown
Published: Feb. 28, 2023
Abstract
Flexible
and
stretchable
biosensors
can
offer
seamless
conformable
biological–electronic
interfaces
for
continuously
acquiring
high‐fidelity
signals,
permitting
numerous
emerging
applications.
Organic
thin
film
transistors
(OTFTs)
are
ideal
transducers
flexible
biosensing
due
to
their
soft
nature,
inherent
amplification
function,
biocompatibility,
ease
of
functionalization,
low
cost,
device
diversity.
In
consideration
the
rapid
advances
in
flexible‐OTFT‐based
broad
applications,
herein,
a
timely
comprehensive
review
is
provided.
It
starts
with
detailed
introduction
features
various
OTFTs
including
organic
field‐effect
electrochemical
transistors,
functionalization
strategies
biosensing,
highlight
on
seminal
work
up‐to‐date
achievements.
Then,
applications
wearable,
implantable,
portable
electronics,
as
well
neuromorphic
biointerfaces
detailed.
Subsequently,
special
attention
paid
planar
fibrous
devices.
The
routes
impart
stretchability,
structural
engineering
material
engineering,
discussed,
implementations
e‐skin
smart
textiles
included.
Finally,
remaining
challenges
future
opportunities
this
field
summarized.
Small,
Journal Year:
2023,
Volume and Issue:
19(27)
Published: April 3, 2023
Abstract
Human
beings
have
a
greater
need
to
pursue
life
and
manage
personal
or
family
health
in
the
context
of
rapid
growth
artificial
intelligence,
big
data,
Internet
Things,
5G/6G
technologies.
The
application
micro
biosensing
devices
is
crucial
connecting
technology
personalized
medicine.
Here,
progress
current
status
from
biocompatible
inorganic
materials
organic
composites
are
reviewed
material‐to‐device
processing
described.
Next,
operating
principles
pressure,
chemical,
optical,
temperature
sensors
dissected
these
flexible
biosensors
wearable/implantable
discussed.
Different
systems
acting
vivo
vitro,
including
signal
communication
energy
supply
then
illustrated.
potential
in‐sensor
computing
for
applications
sensing
also
Finally,
some
essential
needs
commercial
translation
highlighted
future
opportunities
considered.
Small,
Journal Year:
2023,
Volume and Issue:
19(20)
Published: Feb. 15, 2023
Wearable
electronics
are
attracting
increasing
interest
due
to
the
emerging
Internet
of
Things
(IoT).
Compared
their
inorganic
counterparts,
stretchable
organic
semiconductors
(SOSs)
promising
candidates
for
wearable
excellent
properties,
including
light
weight,
stretchability,
dissolubility,
compatibility
with
flexible
substrates,
easy
tuning
electrical
low
cost,
and
temperature
solution
processability
large-area
printing.
Considerable
efforts
have
been
dedicated
fabrication
SOS-based
potential
applications
in
various
areas,
chemical
sensors,
emitting
diodes
(OLEDs),
photodiodes
(OPDs),
photovoltaics
(OPVs),
demonstrated.
In
this
review,
some
recent
advances
based
on
classification
by
device
functionality
presented.
addition,
a
conclusion
challenges
further
development
also
discussed.
Small,
Journal Year:
2023,
Volume and Issue:
19(44)
Published: July 2, 2023
Conductive
polymer
hydrogels
(CPHs)
are
widely
employed
in
emerging
flexible
electronic
devices
because
they
possess
both
the
electrical
conductivity
of
conductors
and
mechanical
properties
hydrogels.
However,
poor
compatibility
between
conductive
polymers
hydrogel
matrix,
as
well
swelling
behavior
humid
environments,
greatly
compromises
CPHs,
limiting
their
applications
wearable
devices.
Herein,
a
supramolecular
strategy
to
develop
strong
tough
CPH
with
excellent
anti-swelling
by
incorporating
hydrogen,
coordination
bonds,
cation-π
interactions
rigid
conducting
soft
matrix
is
reported.
Benefiting
from
effective
networks,
obtained
has
homogeneous
structural
integrity,
exhibiting
remarkable
tensile
strength
(1.63
MPa),
superior
elongation
at
break
(453%),
toughness
(5.5
MJ
m-3
).
As
strain
sensor,
possesses
high
(2.16
S
m-1
),
wide
linear
detection
range
(0-400%),
sensitivity
(gauge
factor
=
4.1),
sufficient
monitor
human
activities
different
windows.
Furthermore,
this
resistance
been
successfully
applied
underwater
sensors
for
monitoring
frog
swimming
communication.
These
results
reveal
new
possibilities
amphibious
sensors.
Journal of Materials Chemistry A,
Journal Year:
2023,
Volume and Issue:
11(35), P. 18561 - 18591
Published: Jan. 1, 2023
Cutting-edge
approaches
to
prepare
PEDOT:PSS
films/electrodes,
significant
progress
on
related
devices
are
summarized;
advantages,
plausible
questions,
challenges,
and
suggestions
also
presented
for
the
continued
development
of
modern
electronics.
ACS Applied Materials & Interfaces,
Journal Year:
2023,
Volume and Issue:
15(12), P. 15096 - 15107
Published: March 21, 2023
Flexible
piezoresistive
tactile
sensors
are
widely
used
in
wearable
electronic
devices
because
of
their
ability
to
detect
mechanical
stimuli.
However,
achieving
high
sensitivity
and
low
hysteresis
over
a
broad
detection
range
remains
challenge
with
current
sensors.
To
address
these
obstacles,
we
designed
elastomeric
micropyramid
arrays
different
heights
redistribute
the
strain
on
electrode.
Furthermore,
mixed
single-walled
carbon
nanotubes
micropyramids
compensate
for
conductivity
loss
caused
by
random
cracks
gold
film
increase
adhesion
strength
between
(deposited
pyramid
surface)
elastomer.
Thus,
energy
sensor
during
deformation
(∼2.52%)
was
effectively
reduced.
Therefore,
under
synactic
effects
percolation
effect,
tunnel
multistage
distribution,
as-prepared
exhibited
(1.28
×
106
kPa-1)
(4.51-54837.06
Pa).
The
considerably
higher
than
those
most
flexible
pressure
microstructure
design.
As
proof
concept,
were
successfully
applied
fields
health
monitoring
human-machine
interaction.
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
36(13)
Published: Jan. 8, 2024
The
conducting
polymer
poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate)
(PEDOT:PSS)
offers
superior
advantages
in
electronics
due
to
its
remarkable
combination
of
high
electrical
conductivity,
excellent
biocompatibility,
and
mechanical
flexibility,
making
it
an
ideal
material
among
electronic
skin,
health
monitoring,
energy
harvesting
storage.
Nevertheless,
pristine
PEDOT:PSS
films
exhibit
limitations
terms
both
low
conductivity
stretchability;
while,
conventional
processing
techniques
cannot
enhance
these
properties
simultaneously,
facing
the
dilemma
that
highly
conductive
interconnected
domains
are
susceptible
tensile
strain.
Via
modifying
with
ionic
liquids
(ILs),
not
only
a
synergistic
enhancement
can
be
achieved
but
also
requirements
for
printable
bioelectronic
satisfied.
In
this
comprehensive
review,
task
providing
thorough
examination
mechanisms
applications
ILs
as
modifiers
is
undertaken.
First,
theoretical
governing
interactions
between
discussed
detail.
Then,
enhanced
elucidation
underlying
through
incorporation
reviewed.
Next,
specific
ILs-modified
relevant
devices
presented.
Last,
there
concise
summary
discussion
regarding
opportunities
challenges
exciting
field.
