ACS Nano,
Journal Year:
2024,
Volume and Issue:
18(34), P. 22734 - 22751
Published: Aug. 15, 2024
Recent
years
have
witnessed
tremendous
advances
in
machine
learning
techniques
for
wearable
sensors
and
bioelectronics,
which
play
an
essential
role
real-time
sensing
data
analysis
to
provide
clinical-grade
information
personalized
healthcare.
To
this
end,
supervised
unsupervised
algorithms
emerged
as
powerful
tools,
allowing
the
detection
of
complex
patterns
relationships
large,
high-dimensional
sets.
In
Review,
we
aim
delineate
latest
advancements
sensors,
focusing
on
key
developments
algorithmic
techniques,
applications,
challenges
intrinsic
evolving
landscape.
Additionally,
highlight
potential
machine-learning
approaches
enhance
accuracy,
reliability,
interpretability
sensor
discuss
opportunities
limitations
emerging
field.
Ultimately,
our
work
aims
a
roadmap
future
research
endeavors
exciting
rapidly
area.
Advanced Functional Materials,
Journal Year:
2023,
Volume and Issue:
33(18)
Published: Feb. 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.
Applied Physics Letters,
Journal Year:
2024,
Volume and Issue:
124(5)
Published: Jan. 29, 2024
Moisture
detection
plays
a
crucial
role
in
physiological
monitoring
and
wearable
electronics.
Nevertheless,
most
of
the
humidity
sensors
were
restricted
by
power
supply,
hindering
their
applicability
internet
things
mobile
healthcare.
Herein,
we
reported
hierarchical
piezoelectric
composite
film
for
active
biomonitoring.
The
as-electrospun
transducing
textile
consists
samarium-modified
lead
magnesium
niobate
titanate
piezoceramic
fillers
polyvinylidene
fluoride
matrix,
while
spin
coated
polyimide
serves
as
sensitive
layer.
By
tuning
thickness
ratio
between
layer
sensing
well
porosity
electrode,
an
optimal
moisture-sensing
performance
was
accomplished
with
high
response
∼500%
rapid
response/recovery
time
23
s/31
s.
Furthermore,
theoretical
modeling
mechanism
established
combining
thermodynamic
derivation
finite
element
calculation.
ACS Materials Letters,
Journal Year:
2023,
Volume and Issue:
5(10), P. 2739 - 2746
Published: Sept. 8, 2023
Smart
sensors
capable
of
detecting
NH3
at
sub-ppb
levels
are
important
for
human
health
in
our
daily
life.
Here,
we
demonstrate
a
surface
acoustic
wave
(SAW)
sensor
based
on
ZnO@MXene
hybrid
heterostructure
ultrahigh
gas
detection
under
UV
illumination
room
temperature
(RT).
Under
illumination,
the
SAW
not
only
significantly
enhances
frequency
response
(Δf
≈
32.24
kHz/20
ppm)
but
also
effectively
improves
selectivity
with
low
limit
(89.41
ppb),
short
response/recovery
times
(92/104
s),
long-term
stability,
and
robust
sensitivity
various
relative
humidity
conditions
(dark)
to
RT.
These
unique
sensing
properties
might
be
attributed
enriched
functional
groups,
oxygen
vacancies,
excellent
charge
transfer
Schottky
barrier
via
band
bending,
which
is
explained
using
an
energy
theory
mechanism.
Overall,
current
study
offers
strategic
insights
designing
light-activated
high-performance
SAW-based
RT
safety
assurance
environmental
monitoring.
ACS Nano,
Journal Year:
2024,
Volume and Issue:
18(4), P. 2685 - 2707
Published: Jan. 19, 2024
Optical
metasurfaces,
capable
of
manipulating
the
properties
light
with
a
thickness
at
subwavelength
scale,
have
been
subject
extensive
investigation
in
recent
decades.
This
research
has
mainly
driven
by
their
potential
to
overcome
limitations
traditional,
bulky
optical
devices.
However,
most
existing
metasurfaces
are
confined
planar
and
rigid
designs,
functions,
technologies,
which
greatly
impede
evolution
toward
practical
applications
that
often
involve
complex
surfaces.
The
disconnect
between
two-dimensional
(2D)
structures
three-dimensional
(3D)
curved
surfaces
is
becoming
increasingly
pronounced.
In
past
two
decades,
emergence
flexible
electronics
ushered
an
emerging
era
for
metasurfaces.
review
delves
into
this
cutting-edge
field,
focus
on
both
conformal
design
fabrication
techniques.
Initially,
we
reflect
milestones
trajectories
modern
complemented
brief
overview
theoretical
underpinnings
primary
classifications.
We
then
showcase
four
advanced
emphasizing
promising
prospects
relevance
areas
such
as
imaging,
biosensing,
cloaking,
multifunctionality.
Subsequently,
explore
three
key
trends
including
mechanically
reconfigurable
digitally
controlled
Finally,
summarize
our
insights
ongoing
challenges
opportunities
field.
ACS Applied Materials & Interfaces,
Journal Year:
2024,
Volume and Issue:
16(43), P. 58838 - 58847
Published: Oct. 19, 2024
Integration
of
multiple
superior
features
into
a
single
flexible
pressure
sensor
would
result
in
devices
with
greater
versatility
and
utility.
To
apply
the
device
to
variety
scenarios
solve
problem
accumulation
e-waste
environment,
it
is
highly
desirable
combine
degradability
wide-range
linearity
characteristics
device.
Herein,
we
reported
degradable
multilayer
fabric
(DMF)
consisting
an
ellipsoidal
carbon
nanotube
(ECNT)
polyvinylpyrrolidone/cellulose
acetate
electrospun
fibers
(PEF).
The
alternative
layer-by-layer
stacking
ECNT
PEF
notably
accelerates
sensitivity
toward
pressure.
optimized
demonstrated
3.38
kPa-1
over
wide
measurement
range
from
0.1
500
kPa,
as
well
great
mechanical
stability
2000
cycles.
A
good
degradation
performance
was
confirmed
by
both
Fourier
transform
infrared
(FTIR)
characterization
decomposition
experiments
sodium
hydroxide
solution.
fabricated
capable
precepting
physiological
including
subtle
arterial
pulse,
dancing
training,
walking
postures,
accidental
falls.
This
work
throws
light
onto
fundamental
understanding
interfacial
coupling
piezoresistive
materials
provides
possibilities
for
design
development
on-demand
wearable
electronics.
ACS Sensors,
Journal Year:
2024,
Volume and Issue:
9(5), P. 2275 - 2293
Published: April 25, 2024
In
recent
years,
wearable
electronic
skin
has
garnered
significant
attention
due
to
its
broad
range
of
applications
in
various
fields,
including
personal
health
monitoring,
human
motion
perception,
human-computer
interaction,
and
flexible
display.
The
multimodal
sensor,
as
the
core
component
skin,
can
mimic
multistimulus
sensing
ability
which
is
highly
for
development
next
generation
devices.
This
paper
provides
a
summary
latest
advancements
sensors
that
possess
two
or
more
response
capabilities
(such
force,
temperature,
humidity,
etc.)
simultaneously.
It
explores
relationship
between
materials
multiple
capabilities,
focusing
on
both
active
are
same
different.
also
discusses
preparation
methods,
device
structures,
properties
these
sensors.
Furthermore,
it
introduces
well
intelligent
robots.
Finally,
current
limitations
future
challenges
will
be
presented.
