Polymers,
Год журнала:
2024,
Номер
16(24), С. 3540 - 3540
Опубликована: Дек. 19, 2024
This
study
reports
the
development
of
highly
conductive
and
stretchable
fibrous
membranes
based
on
PVDF/PAN
conjugate
electrospinning
with
embedded
silver
nanoparticles
(AgNPs)
for
wearable
sensing
applications.
The
fabrication
process
integrated
PVDF/PAN,
selective
dissolution
polyvinylpyrrolidone
(PVP)
to
create
porous
networks,
uniform
AgNP
incorporation
via
adsorption-reduction.
Systematic
optimization
revealed
that
10
wt.%
PVP
content
1.2
mol/L
AgNO3
concentration
yielded
superior
electrical
conductivity
(874.93
S/m)
mechanical
strength
(2.34
MPa).
demonstrated
excellent
strain
performance
a
gauge
factor
12.64
within
0–30%
location-specific
capabilities:
moderate
movements
at
wrist
(ΔR/R0:
98.90–287.25%),
elbow
(124.65–300.24%),
fingers
(177.01–483.20%)
generated
stable
signals,
while
knee
articulation
exhibited
higher
sensitivity
(459.60–1316.48%)
but
significant
signal
fluctuations.
These
results
demonstrate
potential
developed
composite
applications
in
sensors,
flexible
electronics,
human-machine
interfaces,
particularly
scenarios
requiring
moderate-range
motion
detection
high
reliability
stability.
findings
suggest
promising
opportunities
developing
next-generation
devices
through
electrospun
membranes.
This
study
introduces
a
potentiometric
pH
sensor
that
is
extremely
sensitive
and
specifically
designed
for
food
pharmaceutical
applications.
The
utilizes
pH-sensitive
interface
fabricated
by
electropolymerizing
polyaniline
(PANI)
on
carbon
fiber
cloth
(CFC).
Structural
morphological
analyses
of
PANI-CFC
CFC
have
been
conducted
using
X-ray
diffraction
(XRD),
field
emission
scanning
electron
microscopy
(FESEM),
photoelectron
spectroscopy
(XPS).
investigation
the
functional
groups
was
Fourier
transform
infrared
(FTIR)
Raman
spectroscopy.
electrochemical
characteristics
were
assessed
utilization
cyclic
voltammetry
(CV)
open-circuit
potential
(OCP)
measurements
in
three-electrode
configuration.
exhibited
sensitivity
60.9
mV/pH,
while
retaining
consistent
performance
within
range
4
to
12.
repeatability
robustness
sensors
verified.
accuracy
confirmed
validation
real
samples,
demonstrating
its
compatibility
with
commercially
available
sensors.
application
density
theory
(DFT)
calculations
revealed
an
interaction
energy
-173.2886
kcal/mol,
indicating
strong
affinity
H
Textiles,
Год журнала:
2024,
Номер
4(3), С. 284 - 308
Опубликована: Июнь 22, 2024
With
the
substantial
growth
of
smart
textiles
market,
electrical
properties
are
becoming
a
basic
requirement
for
most
advanced
used
in
development
wearable
solutions
and
other
textile-based
applications.
Depending
on
textile
substrate,
test
method
to
determine
can
be
different.
Unlike
fibers
yarns,
characterization
fabrics
cannot
tested
between
two
connection
points
because
result
would
not
represent
behavior
entire
fabric,
so
must
related
an
area.
The
parameters
characterize
include
resistance,
resistivity,
conductivity.
Although
all
them
indicate
performance,
there
significant
differences
different
methods
available
their
determination,
whose
suitability
will
depend
function
substrate.
This
paper
revises
main
conductive
summarizes
common
them.
It
also
discusses
each
according
several
intervening
factors,
such
as
type
fabric
(intrinsically
or
extrinsically
conductive),
its
conductivity
range,
parameters,
final
intended
application.
For
intrinsically
woven
fabrics,
suitable,
but
depending
requirements
accuracy,
contact
resistance
from
measuring
system
should
determined.
knitted
two-point
probe,
Van
der
Pauw,
eddy
current
suitable.
And
nonwoven
probe
four-point
appropriate.
In
case
applied
substrate
layer.
