Journal of Materials Chemistry C,
Год журнала:
2024,
Номер
unknown
Опубликована: Янв. 1, 2024
The
burgeoning
market
for
flexible
pressure
sensors
has
been
invigorated
by
their
enhanced
performance
and
wearability,
paving
the
way
innovative
applications
in
wearable
electronics
biomedical
devices.
Abstract
This
study
introduces
a
novel
gravity‐driven
air‐liquid
interface
flexible
sensor
(GALIFS)
for
detecting
human
motions.
GALIFS
leverages
gravity‐induced
liquid
flow
to
generate
angle‐dependent
electrical
signals,
eliminating
the
need
material
deformation
(e.g.,
stretching
or
compression)
during
operation.
Unlike
conventional
inertial
sensors
(limited
by
rigid
designs
causing
discomfort)
existing
(reliant
on
stress‐induced
signals
and
high
durability),
overcomes
these
constraints
through
its
unique
mechanism.
Furthermore,
operates
without
requiring
perfect
skin
adhesion,
significantly
enhancing
user
comfort.
achieves
wide
angular
detection
range
(0°–180°)
with
stability
(over
16000
cycles).
Additionally,
it
can
identify
diverse
of
motions,
including
neck
bending,
spine
squatting,
jumping,
walking,
running.
A
real‐time
lying
posture
monitoring
system
bedridden
patients
is
further
developed,
showcasing
medical
potential.
Following
successful
mitigation
evaporation
issues,
may
have
significant
potential
applications
in
various
scenarios,
rehabilitation
sports
training.
Sensors,
Год журнала:
2025,
Номер
25(8), С. 2423 - 2423
Опубликована: Апрель 11, 2025
This
research
outlines
the
design
of
capacitive
pressure
sensors
fabricated
from
three
biocompatible
materials,
featuring
both
circular
and
square
geometries.
The
were
structured
with
a
dielectric
layer
positioned
between
gold-plated
electrodes
at
top
bottom.
Their
performance
was
assessed
through
simulations
conducted
ANSYS
Workbench.
Of
various
sensor
configurations
tested,
that
included
two
crescent-shaped
slots
20
µm
thick
PDMS
material
demonstrated
highest
sensitivity
10.68
fF/mmHg.
study
further
investigated
relationship
resonant
frequency
shifts
arterial
blood
pressure,
revealing
an
exceptionally
linear
response,
as
evidenced
by
Pearson’s
correlation
coefficient
−0.99986
R-squared
value
0.99972.
confirmed
sensor’s
applicability
for
obtaining
precise
measurements.
Additionally,
3
×
30
mm
cobalt–chromium
(Co-Cr)
stent
obtained,
its
inductance
measured
using
impedance
analyzer.
Journal of Materials Chemistry C,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
A
mixture
of
PVA,
CS
and
ILs
was
prepared
into
an
ionic
gel
by
freeze–thaw
cycles
as
the
dielectric
layer
for
a
capacitive
sensor,
which
had
high
sensitivity
rapid
response
time.
Advanced Materials Technologies,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 26, 2025
Abstract
Flexible
pressure
sensors
hold
significant
potential
for
applications
in
health
monitoring,
human‐machine
interaction,
electronic
skin,
and
artificial
intelligence
due
to
their
high
sensitivity,
flexibility,
lightweight,
ease
of
signal
acquisition.
In
recent
years,
extensive
research
into
sensor
materials,
structures,
manufacturing
technologies
has
led
the
development
various
high‐performance
flexible
sensors.
Currently,
optimizing
sensing
performance
involves
selecting
appropriate
functional
designing
deformable
employing
high‐precision
techniques.
This
paper
reviews
advancements
sensors,
focusing
on
mechanisms,
microstructure
design,
technologies,
application
fields.
First,
mechanisms
operating
different
modes
are
introduced,
several
widely
used
materials
discussed.
Particular
attention
is
given
role
geometric
design
enhancing
performance.
Next,
influence
analyzed
summarized.
addition,
emerging
presented.
Finally,
concludes
by
highlighting
prospects
major
challenges
achieving
Journal of Materials Chemistry C,
Год журнала:
2024,
Номер
unknown
Опубликована: Янв. 1, 2024
The
burgeoning
market
for
flexible
pressure
sensors
has
been
invigorated
by
their
enhanced
performance
and
wearability,
paving
the
way
innovative
applications
in
wearable
electronics
biomedical
devices.