Congeneric and Robust Adhesive Epidermal Patch for Anti‐Interference Physiological Signal Recognition
Dingli Gan,
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Qian Wang,
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Xinyi Zhang
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et al.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Sept. 10, 2024
Abstract
Epidermal
patches
utilized
for
the
transduction
of
biopotentials
and
biomechanical
signals
are
pivotal
in
wearable
health
monitoring.
However,
shortcomings,
such
as
inferior
conformal
ability,
deficient
adhesion,
motion
artifacts,
severely
impede
bioelectrodes
from
perceiving
stable
superior‐quality
physiological
signals.
Herein,
a
polymer
epidermal
patch
possessing
spontaneous
Janus
structure
is
facilely
prepared
through
itaconic
acylhydrazine
(IAH)
induced
gradient
polymerization.
The
solubility
discrepancy
monomers
IAH
authorized
with
distinct
adhesion
properties
on
each
side.
Moreover,
hydrogen
bond
network
constructed
by
confers
high
degree
skin
compliance,
enabling
dynamic
mechanical
to
withstand
complex
monitoring
environments.
By
integrating
skin‐like
softness
(Young's
modulus
≈0.16
MPa),
robust
(35
kPa),
signal‐to‐noise
ratio
(32
dB),
this
displays
exceptional
elasticity
within
activity
spectrum,
provides
swift
electrical
self‐recovery
capabilities,
resists
interference
signal
(deformation,
compression,
humidity,
etc.).
demonstrating
multifaceted
applications
Electrocardiogram
recording
under
diverse
disturbances,
profiles
promising
noninvasive,
enduring
bioelectronic
interface
immunity
interference.
Language: Английский
Synthesis of Ultrathin Film PEGDMA Hydrogels Coated onto Different Surfaces by Atmospheric Pressure Plasma: Characterization and Potential Features for the Biomedical Field
Macromolecular Materials and Engineering,
Journal Year:
2024,
Volume and Issue:
310(1)
Published: Oct. 30, 2024
Abstract
The
preparation
of
resistant
ultrathin
film
(utf)
hydrogels
coated
onto
different
working
surfaces
(e.g.,
fabrics)
is
paying
increasing
attention
as
an
advantageous
strategy
for
customizing
their
resultant
properties.
More
specifically,
poly(ethylene
glycol)
(PEG)‐based
utf‐hydrogels
are
relevant
superior
biocompatibility
or
antibiofouling
However,
promoting
the
generation
dimethacrylate
(PEGDMA)
cross‐links
ideally
without
use
initiators
other
cross‐link
agents,
which
might
compromise
final
bioactivity
system,
complicated.
Moreover,
actual
synthesis
techniques
used
such
face
important
drawbacks
like
high
scale‐up
costs
geometrical
restrictions,
completely
hindering
its
technological
transfer.
Herein,
first
time
and
easy
technologically
scalable
technology
reported
direct
deposition
PEGDMA
400
substrates
based
on
atmospheric
pressure
nanosecond
pulsed
plasma
approach.
advantages
explored
discussed,
reporting
ready‐to‐use
transparent
coating
fabrics.
After
washing
samples
using
programs
a
commercial
laundry
machine,
coatings
still
well
adhered,
showing
excellent
stability.
Finally,
properties
exhaustively
characterized
in
operando
conditions
order
to
elucidate
potential
capabilities
biomedical
field.
Language: Английский