Triboelectric
textiles
have
recently
garnered
significant
attention
for
their
ability
to
detect
and
analyze
body
movements.
However,
the
transmission
of
wireless
signals
from
natural
human
motion
via
integrated
triboelectric
wearables
has
been
hampered
by
reliance
on
nontextile
components,
physical
interface
spacers,
wired
connections.
Here,
we
report
a
biosensing
wearable
system
that
exploits
inherent
microgaps
within
electrospun
nanofibers
create
textile,
seamlessly
woven
into
garment
at
various
positions.
This
design
enables
untethered
continuous
biosignal
monitoring,
including
those
indicative
stride-time
variability
joint-time
analysis
daily
activities
exercise.
Signals
are
wirelessly
transmitted
displacement
current─enhanced
textile
inductor─to
an
external
reader.
innovation
signal
directly
garments
without
need
energy
sources.
work
advances
development
fully
textile-based
sensors
contributing
next-generation
tracking,
health
smart
clothing
technologies.
International Journal of Mechanical Sciences,
Год журнала:
2024,
Номер
277, С. 109448 - 109448
Опубликована: Июнь 4, 2024
This
paper
introduces
a
set
of
design
criteria
that
aim
to
integrate
flexible
electronics
onto
three-dimensional
surfaces
in
mechanically
adaptive
manner.
Previous
studies
have
been
limited
conformal
integration
on
specific
shapes
(Such
as
spherical
and
corrugated
surfaces)
rigid
or
soft
substrates,
there
is
lack
universal
strategy
takes
into
account
the
complexity
substrate
varying
hardness.
To
address
this
gap,
outlines
mechanical
model
utilizes
Hertzian
contact
theory
describe
interaction
between
thin
film
substrate,
surface
morphology
stress
state
were
derived
from
minimizing
total
energy
island-substrate
structure.
The
proposed
formulations
are
verified
through
finite
element
methods
experiments,
analyzing
effects
Young's
modulus,
in-plane
size,
thickness
"island"
its
conformability.
Therefore,
proposes
generic
on-demand
hardness
substrate.
study's
findings
will
contribute
development
can
be
used
various
fields,
such
epidermal
electronics,
robots,
robot
electronic
skin,
aircraft
smart
skin.
Triboelectric
technology,
with
its
renewable,
low-cost,
and
eco-friendly
advantages,
offers
new
possibilities
for
intelligent
motion-sensing
equipment
sports
monitoring.
We
propose
a
maple
leaf-based
triboelectric
nanogenerator
(ML-TENG)
green
mechanical
energy
harvesting
detecting
table
tennis
corner
kicks.
The
ML-TENG
operates
in
contact-separation
mode
achieves
peak
power
output
of
63.38
W/m3
at
an
optimal
load
50
MΩ.
experimental
results
show
transfer
charge
(Qsc)
35
nC,
short-circuit
current
(Isc)
9
μA,
open-circuit
voltage
(Voc)
V.
Tested
ping-pong
paddle,
the
generates
consistent
even
under
high-frequency
impacts,
demonstrating
sensitivity
to
both
strong
weak
forces.
This
ready-to-use
design
requires
minimal
preparation,
highlighting
technology’s
potential
improving
monitoring
accuracy
enabling
real-time
athletic
performance
analysis.
ACS Applied Materials & Interfaces,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 27, 2025
Liquid
metals
(LMs)
with
fluidity
and
conductivity
are
widely
applied
in
flexible
electronics.
However,
the
surface
patterning
of
liquid
is
restricted
by
low
adhesion
effect
on
substrates
because
intrinsic
high
tension.
In
this
study,
a
versatile
adhesive
conductive
poly(imidazole-urea)/eutectic
Ga75.5In24.5
alloy
(PIU/EGaIn)
ink
proposed
wrapping
EGaIn
particles
PIU
through
metal
coordination
to
realize
substrate-independent
direct
writing.
The
guarantees
that
PIU/EGaIn
can
be
written
smoothly
different
substrates,
ranging
from
rigid
plane
camber.
Complex
patterns
also
stamped
substrate
transfer
printing.
maximum
handwriting
trace
reach
as
1.3
×
106
S/m
due
highly
efficient
stability
content
residue
PIU.
circuit
demonstrates
maintains
constant
after
500
cycles
deformations
(folding,
bending,
stretching),
thanks
good
substrates.
addition,
resistance
touch
sensor
was
patterned
detect
finger
contact
demonstration
potential
application.
waste
recycled
using
an
alkaline
solution
owing
degradability
This
strategy
offers
new
choice
for
universal
suitable
environmentally
friendly
