Advanced Functional Materials,
Год журнала:
2024,
Номер
34(52)
Опубликована: Авг. 1, 2024
Abstract
Materials
combining
stretchability
and
sensitivity
to
external
stimuli
are
key
for
wearable
electronics
applications
enable
the
emergence
of
disruptive
technologies
in
biosensing,
health
monitoring,
photodetection
human
motion
recognition.
Conductive
organohydrogels
have
gained
significant
attention
due
their
high
cost‐effective
preparation.
Biopolymers
like
gelatin
alginate
offer
unique
opportunities
developing
responsive
devices,
owing
biocompatibility
toward
environmental
factors.
Here
sustainable
bio‐inspired
method
is
presented
produce
alginategelatin
transparency
visible
range,
ionic
conductivity,
stretchability,
multiresponsiveness.
The
controlled
alginate's
crosslinking
with
various
metal
cations
Mn
2+
,
Cu
Fe
3+
Zr
4+
enables
modulating
conductivity
as
well
finely
tuning
material's
thermal
mechanical
properties.
These
show
responsiveness
temperature
(from
10
50
degrees,
a
0.19
K
−1
),
relative
humidity
20
80%,
0.022
RH(%)
strain
(gauge
factor
>1.6),
enabling
real‐time
monitoring
physiological
parameters.
Remarkably,
they
also
exhibit
photoresponsivity
9.2
µA
W
under
light,
feature
rarely
reported
literature.
ease
chosen
sensitivities
open
perspectives
applying
these
materials
stretchable
sensors.
Nano-Micro Letters,
Год журнала:
2023,
Номер
16(1)
Опубликована: Ноя. 13, 2023
The
recent
wave
of
the
artificial
intelligence
(AI)
revolution
has
aroused
unprecedented
interest
in
intelligentialize
human
society.
As
an
essential
component
that
bridges
physical
world
and
digital
signals,
flexible
sensors
are
evolving
from
a
single
sensing
element
to
smarter
system,
which
is
capable
highly
efficient
acquisition,
analysis,
even
perception
vast,
multifaceted
data.
While
challenging
manual
perspective,
development
intelligent
been
remarkably
facilitated
owing
rapid
advances
brain-inspired
AI
innovations
both
algorithm
(machine
learning)
framework
(artificial
synapses)
level.
This
review
presents
progress
emerging
AI-driven,
systems.
basic
concept
machine
learning
synapses
introduced.
new
enabling
features
induced
by
fusion
comprehensively
reviewed,
significantly
applications
such
as
sensory
systems,
soft/humanoid
robotics,
activity
monitoring.
two
most
profound
twenty-first
century,
deep
incorporation
technology
holds
tremendous
potential
for
creating
beings.
ACS Sensors,
Год журнала:
2024,
Номер
9(4), С. 1644 - 1655
Опубликована: Март 19, 2024
Chemiresistive
gas
sensors
based
on
metal
oxides
have
been
widely
applied
in
industrial
monitoring,
medical
diagnosis,
environmental
pollutant
detection,
and
food
safety.
To
further
enhance
the
sensing
performance,
researchers
worked
to
modify
structure
function
of
material
so
that
it
can
adapt
different
types
conditions.
Among
numerous
gas-sensitive
materials,
n-type
TiO2
semiconductors
are
a
focus
attention
for
their
high
stability,
excellent
biosafety,
controllable
carrier
concentration,
low
manufacturing
cost.
This
Perspective
first
introduces
mechanism
nanostructures
composite
TiO2-based
nanomaterials
then
analyzes
relationship
between
properties
composition,
focusing
also
technical
issues
such
as
doping,
heterojunctions,
functional
applications.
The
applications
challenges
nanostructured
safety,
other
fields
summarized
detail.
Finally,
context
practical
application
challenges,
future
development
technologies
new
concepts
explored,
providing
ideas
directions
multifunctional
intelligent
various
fields.
ACS Nano,
Год журнала:
2024,
Номер
18(24), С. 15754 - 15768
Опубликована: Июнь 3, 2024
The
multisensory
responsiveness
of
hydrogels
positions
them
as
promising
candidates
for
artificial
skin,
whereas
the
mismatch
modulus
between
soft
and
hard
electrodes
well
poor
adhesion
conductance
at
interface
greatly
impairs
stability
electronics
devices.
Herein,
we
propose
an
in
situ
postprocessing
approach
utilizing
electrochemical
reactions
metals
(Zn,
etc.)
to
synergistically
achieve
strong
hydrogel-electrode
interface,
low
interfacial
impedance,
local
strain
isolation
due
structural
densification
hydrogel
network.
mechanism
is
that
Zn
electrochemically
oxidizes
International Journal of Biological Macromolecules,
Год журнала:
2024,
Номер
278, С. 134383 - 134383
Опубликована: Авг. 3, 2024
Based
on
the
basic
idea
of
expanding
interlayer
spacing
MXene,
utilizing
effect
gallic
acid-modified
cellulose
nanofibers
for
rapid
moisture
separation,
flexible
sensing
and
driving
composite
film
with
a
perfect
balance
among
humidity
signal
response
mechanical
properties
was
prepared.
Inspired
by
stacking
autumn
fallen
leaves,
nanofibers-based
films
were
formed
self-assembly
under
vacuum
filtration
blending
MXene.
The
enhanced
(tensile
strength
131.1
MPa,
puncture
load
0.88
N,
tearing
165.55
N/mm,
elongation
at
break
16.14
%),
(the
stable
induced
voltage
63.7
mV
response/recovery
time
3.2/5.1
s),
(154.7°
bending
angle)
observed.
synergistic
hydrogen
bonds,
"pinning
effect"
arising
from
side
chains,
hierarchical
layered
microstructure
contributed
to
performance.
This
work
exemplifies
application
green
natural
product
preparing
intelligent
sensing,
wearable
devices,
biomimetic
robots.
Nano-Micro Letters,
Год журнала:
2024,
Номер
16(1)
Опубликована: Авг. 14, 2024
Abstract
As
information
acquisition
terminals
for
artificial
olfaction,
chemiresistive
gas
sensors
are
often
troubled
by
their
cross-sensitivity,
and
reducing
cross-response
to
ambient
gases
has
always
been
a
difficult
important
point
in
the
sensing
area.
Pattern
recognition
based
on
sensor
array
is
most
conspicuous
way
overcome
cross-sensitivity
of
sensors.
It
crucial
choose
an
appropriate
pattern
method
enhancing
data
analysis,
errors
improving
system
reliability,
obtaining
better
classification
or
concentration
prediction
results.
In
this
review,
we
analyze
mechanism
We
further
examine
types,
working
principles,
characteristics,
applicable
detection
range
algorithms
utilized
gas-sensing
arrays.
Additionally,
report,
summarize,
evaluate
outstanding
novel
advancements
methods
identification.
At
same
time,
work
showcases
recent
utilizing
these
identification,
particularly
within
three
domains:
ensuring
food
safety,
monitoring
environment,
aiding
medical
diagnosis.
conclusion,
study
anticipates
future
research
prospects
considering
existing
landscape
challenges.
hoped
that
will
make
positive
contribution
towards
mitigating
gas-sensitive
devices
offer
valuable
insights
algorithm
selection
applications.
Journal of Polymer Science,
Год журнала:
2024,
Номер
62(20), С. 4599 - 4611
Опубликована: Июль 19, 2024
Abstract
As
a
soft
material
with
biocompatibility
and
stimulation
response,
ionic
conductive
hydrogel‐based
wearable
strain
sensors
show
great
potential
across
wide
spectrum
of
engineering
disciplines,
but
their
mechanical
toughness
is
limited
in
practical
applications.
In
this
study,
freeze‐thawing
techniques
were
utilized
to
fabricate
double‐network
hydrogels
poly(vinyl
alcohol)/polyacrylamide
(PVA/PAM)
both
covalent
physical
cross‐linking
networks.
These
demonstrate
excellent
performance,
an
elongation
at
break
2253%
tensile
strength
268.2
kPa.
Simultaneously,
they
also
display
high
sensitivity
(Gage
factor,
GF
=
2.32
0%–200%
strain),
achieve
rapid
response
time
368
ms
without
the
addition
extra
fillers
or
ions,
stable
signal
transmission
even
after
multiple
cycles,
fast
human
motion
detection.
RSC Advances,
Год журнала:
2024,
Номер
14(19), С. 12984 - 13004
Опубликована: Янв. 1, 2024
In
recent
years,
flexible
conductive
materials
have
attracted
considerable
attention
for
their
potential
use
in
energy
storage
devices,
touch
panels,
sensors,
memristors,
and
other
applications.
Carbohydrate Polymers,
Год журнала:
2024,
Номер
337, С. 122116 - 122116
Опубликована: Апрель 5, 2024
In
response
to
the
burgeoning
interest
in
development
of
highly
conformable
and
resilient
flexible
electronic
sensors
capable
transducing
diverse
physical
stimuli,
this
review
investigates
pivotal
role
natural
polymers,
specifically
those
derived
from
starch,
crafting
sustainable
biocompatible
sensing
materials.
Expounding
on
cutting-edge
research,
exploration
delves
into
innovative
strategies
employed
leverage
distinctive
attributes
starch
conjunction
with
other
polymers
for
fabrication
advanced
sensors.
The
comprehensive
discussion
encompasses
a
spectrum
starch-based
materials,
spanning
all-starch-based
gels
soft
composites,
meticulously
scrutinizing
their
applications
constructing
resistive,
capacitive,
piezoelectric,
triboelectric
These
intricately
designed
exhibit
proficiency
detecting
an
array
including
strain,
temperature,
humidity,
liquids,
enzymes,
thereby
playing
continuous
non-invasive
monitoring
human
body
motions,
physiological
signals,
environmental
conditions.
highlights
intricate
interplay
between
material
properties,
sensor
design,
performance,
emphasizing
unique
advantages
conferred
by
such
as
self-adhesiveness,
self-healability,
re-processibility
facilitated
dynamic
bonding.
conclusion,
paper
outlines
current
challenges
future
research
opportunities
evolving
field,
offering
valuable
insights
prospective
investigations.
