Advanced Functional Materials,
Journal Year:
2022,
Volume and Issue:
33(9)
Published: Dec. 16, 2022
Abstract
Real‐time
monitoring
of
mental
stress
biomarkers
in
sweat
provides
the
possibility
to
evaluate
status
a
precise
manner.
In
general,
wearable
sensors
suffer
from
inconvenient
collection,
low
levels
diagnostic
sweat,
sophisticated
signal
processing,
and
challenges
with
data
visualization.
To
overcome
these
challenges,
herein
an
integrated
sweat‐sensing
patch
for
continuous
analysis
(cortisol,
Mg
2+
,
pH)
at
rest
is
demonstrated.
The
sensing
comprised
microfluidic
chip,
highly
sensitive
platform,
on‐site
processing
circuitry
(SPCs),
smartphone
installed
home‐developed
display
software.
collection
realized
using
chip
without
perspiration
assistance.
A
ternary
composite
electrode
designed
obtain
good
conductivity,
high
surface
area,
massive
reactive
sites,
thereby
yielding
excellent
electrochemical
performances
sensitivity
trace
biomarkers.
SPC
has
function
transduction,
conditioning,
wireless
transmission.
detection
results
can
be
displayed
on
through
This
work
represents
significant
scientific
technological
advancement
toward
indexing
used
as
innovative
tool
psychological
diagnosis.
Science Advances,
Journal Year:
2023,
Volume and Issue:
9(32)
Published: Aug. 11, 2023
Continuous
and
reliable
monitoring
of
blood
pressure
cardiac
function
is
great
importance
for
diagnosing
preventing
cardiovascular
diseases.
However,
existing
approaches
are
bulky
costly,
limiting
their
wide
applications
early
diagnosis.
Here,
we
developed
an
intelligent
system
based
on
a
conformal
flexible
strain
sensor
array
deep
learning
neural
networks.
The
has
variety
advantages,
including
high
sensitivity,
linearity,
fast
response
recovery,
isotropy.
Experiments
simulation
synergistically
verified
that
the
can
acquire
high-precise
feature-rich
pulse
waves
from
wrist
without
precise
positioning.
By
combining
high-quality
with
well-trained
model,
monitor
parameters.
As
proof
concept,
further
constructed
wearable
real-time
long-term
function,
which
may
contribute
to
personalized
health
management,
diagnosis,
remote
treatment.
Nature Communications,
Journal Year:
2023,
Volume and Issue:
14(1)
Published: Aug. 17, 2023
Continuous
monitoring
of
arterial
blood
pressure
(BP)
outside
a
clinical
setting
is
crucial
for
preventing
and
diagnosing
hypertension
related
diseases.
However,
current
continuous
BP
instruments
suffer
from
either
bulky
systems
or
poor
user-device
interfacial
performance,
hampering
their
applications
in
monitoring.
Here,
we
report
thin,
soft,
miniaturized
system
(TSMS)
that
combines
conformal
piezoelectric
sensor
array,
an
active
adaptation
unit,
signal
processing
module,
advanced
machine
learning
method,
to
allow
real
wearable,
wireless
ambulatory
artery
BP.
By
optimizing
the
materials
selection,
control/sampling
strategy,
integration,
TSMS
exhibits
improved
performance
while
maintaining
Grade
A
level
measurement
accuracy.
Initial
trials
on
87
volunteers
tracking
two
individuals
prove
capability
as
reliable
product,
its
feasibility
practical
usability
precise
control
personalized
diagnosis
schemes
development.
Advanced Materials,
Journal Year:
2023,
Volume and Issue:
35(26)
Published: March 24, 2023
Wearable
blood-pressure
sensors
have
recently
attracted
attention
as
healthcare
devices
for
continuous
non-invasive
arterial
pressure
(CNAP)
monitoring.
However,
the
accuracy
of
wearable
(BP)
monitoring
has
been
controversial
due
to
low
signal
quality
sensors,
absence
an
accurate
transfer
function
convert
sensor
signals
into
BP
values,
and
lack
clinical
validation
regarding
measurement
precision.
Here,
a
piezoelectric
(WPBPS)
is
reported,
which
achieves
high
normalized
sensitivity
(0.062
kPa-1
),
fast
response
time
(23
ms)
CNAP
The
linear
regression
model
designed,
offering
simple
solution
flexible
values.
In
order
verify
WPBPS,
trials
are
performed
on
35
subjects
aged
from
20
80
s
after
screening.
mean
difference
between
WPBPS
commercial
sphygmomanometer
175
data
pairs
-0.89
±
6.19
-0.32
5.28
mmHg
systolic
blood
(SBP)
diastolic
(DBP),
respectively.
By
building
WPBPS-embedded
wristwatch,
potentially
promising
use
convenient,
portable,
system
cardiovascular
disease
diagnosis
demonstrated.
ACS Nano,
Journal Year:
2024,
Volume and Issue:
18(4), P. 3720 - 3732
Published: Jan. 18, 2024
Piezoelectric
hydrogel
sensors
are
becoming
increasingly
popular
for
wearable
sensing
applications
due
to
their
high
sensitivity,
self-powered
performance,
and
simple
preparation
process.
However,
conventional
piezoelectric
hydrogels
lack
antifreezing
properties
thus
confronted
with
the
liability
of
rupture
in
low
temperatures
owing
use
water
as
dispersion
medium.
Herein,
a
kind
organohydrogel
that
integrates
piezoelectricity,
low-temperature
tolerance,
mechanical
robustness,
stable
electrical
performance
is
reported
by
using
poly(vinylidene
fluoride)
(PVDF),
acrylonitrile
(AN),
acrylamide
(AAm),
Nature Communications,
Journal Year:
2024,
Volume and Issue:
15(1)
Published: April 25, 2024
Abstract
Commercial
wearable
piezoelectric
sensors
possess
excellent
anti-interference
stability
due
to
their
electronic
packaging.
However,
this
packaging
renders
them
barely
breathable
and
compromises
human
comfort.
To
address
issue,
we
develop
a
PVDF
nanoyarns
with
an
ultrahigh
strength
of
313.3
MPa,
weaving
different
yarns
form
three-dimensional
fabric
(3DPF)
sensor
using
the
advanced
3D
textile
technology.
The
tensile
(46.0
MPa)
3DPF
exhibits
highest
among
reported
flexible
sensors.
features
anti-gravity
unidirectional
liquid
transport
that
allows
sweat
move
from
inner
layer
near
skin
outer
in
4
s,
resulting
comfortable
dry
environment
for
user.
It
should
be
noted
sweating
does
not
weaken
properties
3DPF,
but
rather
enhances.
Additionally,
durability
comfortability
are
similar
those
commercial
cotton
T-shirts.
This
work
provides
strategy
developing
devices.
Sensors,
Journal Year:
2023,
Volume and Issue:
23(5), P. 2479 - 2479
Published: Feb. 23, 2023
Smart
wearable
systems
for
health
monitoring
are
highly
desired
in
personal
wisdom
medicine
and
telemedicine.
These
make
the
detecting,
monitoring,
recording
of
biosignals
portable,
long-term,
comfortable.
The
development
optimization
health-monitoring
have
focused
on
advanced
materials
system
integration,
number
high-performance
has
been
gradually
increasing
recent
years.
However,
there
still
many
challenges
these
fields,
such
as
balancing
trade-off
between
flexibility/stretchability,
sensing
performance,
robustness
systems.
For
this
reason,
more
evolution
is
required
to
promote
In
regard,
review
summarizes
some
representative
achievements
progress
monitoring.
Meanwhile,
a
strategy
overview
presented
about
selecting
materials,
integrating
systems,
biosignals.
next
generation
accurate,
continuous,
long-term
will
offer
opportunities
disease
diagnosis
treatment.
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
36(27)
Published: April 23, 2024
Wireless
and
wearable
sensors
attract
considerable
interest
in
personalized
healthcare
by
providing
a
unique
approach
for
remote,
noncontact,
continuous
monitoring
of
various
health-related
signals
without
interference
with
daily
life.
Recent
advances
wireless
technologies
have
promoted
practical
applications
due
to
their
significantly
improved
characteristics,
such
as
reduction
size
thickness,
enhancement
flexibility
stretchability,
conformability
the
human
body.
Currently,
most
researches
focus
on
active
materials
structural
designs
sensors,
just
few
exceptions
reflecting
data
transmission.
This
review
provides
comprehensive
overview
state-of-the-art
related
studies
empowering
sensors.
The
emerging
functional
nanomaterials
utilized
designing
modules
are
highlighted,
which
include
metals,
carbons,
MXenes.
Additionally,
outlines
system-level
integration
flexible
spanning
from
novel
design
strategies
enhanced
efficient
transmitting
wirelessly.
Furthermore,
introduces
representative
remote
noninvasive
physiological
through
on-skin
implantable
sensing
systems.
Finally,
challenges,
perspectives,
unprecedented
opportunities
discussed.
