Langmuir,
Год журнала:
2024,
Номер
40(37), С. 19830 - 19838
Опубликована: Сен. 4, 2024
Hydrogel-based
flexible
electronics
have
been
widely
investigated
in
electronic
skin
and
wearable
sensors.
However,
the
challenge
of
matching
modulus
between
hydrogel
electrode
underscores
critical
importance
flexibility
electrode.
Gallium-based
liquid
metals
(GaLMs)
are
ideal
materials
for
substrates
due
to
their
high
conductivity
stretchability.
ease
aggregation
lack
adhesion
happen
when
patterning
GaLMs
on
surfaces.
This
work
proposes
a
direct
ink
writing
(DIW)
highly
oxidized
EGaIn
(hoEGaIn)
an
acrylamide
(AAm)
hydrogel.
The
interface
is
modulated
by
increasing
oxide
content
improve
printability.
Compared
with
layer,
hoEGaIn
displays
lower
surface
tension
dropped
about
28.5%,
higher
(an
increase
24.4%),
contact
angles.
These
optimized
properties
significantly
its
wettability
DIW
stability
AAm
substrates.
A
minimum
line
width
65
μm
obtained
regulating
parameters.
Meanwhile,
exhibits
impressive
multisubstrate
printability
up
2.22
×
10
iScience,
Год журнала:
2024,
Номер
27(9), С. 110707 - 110707
Опубликована: Авг. 12, 2024
Cardiovascular
diseases
(CVDs)
pose
a
significant
global
health
threat,
responsible
for
considerable
portion
of
worldwide
mortality.
Flexible
electronics
enable
continuous,
noninvasive,
real-time,
and
portable
monitoring,
providing
an
ideal
platform
personalized
healthcare.
Nevertheless,
challenges
persist
in
sustaining
stable
adherence
across
diverse
intricate
skin
environments,
hindering
further
advancement
toward
clinical
applications.
Strategies
such
as
structural
design
chemical
modification
can
significantly
enhance
the
environmental
adaptability
monitoring
performance
flexible
electronics.
This
review
delineates
processing
techniques,
including
modification,
to
mitigate
signal
interference
from
sebaceous
skin,
motion
artifacts
motion,
infection
risks
fragile
thereby
enabling
accurate
key
cardiovascular
indicators
complex
physiological
environments.
Moreover,
it
delves
into
potential
strategic
development
improvement
ensure
their
alignment
with
environment
requirements,
facilitating
transition
Langmuir,
Год журнала:
2024,
Номер
40(37), С. 19830 - 19838
Опубликована: Сен. 4, 2024
Hydrogel-based
flexible
electronics
have
been
widely
investigated
in
electronic
skin
and
wearable
sensors.
However,
the
challenge
of
matching
modulus
between
hydrogel
electrode
underscores
critical
importance
flexibility
electrode.
Gallium-based
liquid
metals
(GaLMs)
are
ideal
materials
for
substrates
due
to
their
high
conductivity
stretchability.
ease
aggregation
lack
adhesion
happen
when
patterning
GaLMs
on
surfaces.
This
work
proposes
a
direct
ink
writing
(DIW)
highly
oxidized
EGaIn
(hoEGaIn)
an
acrylamide
(AAm)
hydrogel.
The
interface
is
modulated
by
increasing
oxide
content
improve
printability.
Compared
with
layer,
hoEGaIn
displays
lower
surface
tension
dropped
about
28.5%,
higher
(an
increase
24.4%),
contact
angles.
These
optimized
properties
significantly
its
wettability
DIW
stability
AAm
substrates.
A
minimum
line
width
65
μm
obtained
regulating
parameters.
Meanwhile,
exhibits
impressive
multisubstrate
printability
up
2.22
×
10
