Integration of Electrohydrodynamic Printing and Hydroprinting for the Cost‐Effective Fabrication of Microscale Conformal Transparent Electrodes on Diverse Curved Surfaces
Small,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 16, 2025
Abstract
Hydroprinting
has
emerged
as
a
cost‐effective
solution
to
transfer
planar
flexible
electronics
onto
diverse
curved
surfaces
for
the
fabrication
of
conformal
transparent
electrodes
(CTEs)
in
fields
microelectronics
and
healthcare
monitoring.
However,
current
hydroprinting
strategies
commonly
rely
on
intricate
multiple‐step
microfabrication
processes
or
inkjet/direct/screen
printing,
largely
limiting
accessibility
resolution
microscale
CTEs.
Here,
an
integration
strategy
is
proposed
by
combining
electrohydrodynamic
printing
hydroprinting,
simplifying
CTEs
with
remarkable
electrical/thermal/sensing
capabilities
robust
mechanical
stability.
Stable
silver
mesh
non‐conductive
water‐soluble
polyvinyl
alcohol
films
achieves
excellent
compatibility
distinct
substrate
materials.
The
smallest
feature
size
48.5
±
3.7
µm,
showing
figure
merit
1304.
Interestingly,
hydroprinted
rough
demonstrate
better
adhesion
scratching
resistances
than
those
smooth
counterparts,
maintaining
negligible
sheet
resistance
increase
after
100
cyclic
tests.
cylindrical
glass
bottle
exhibit
transparency
electrothermal
properties.
human
skin
electrocardiogram
sensing
monitoring
realize
notable
30.24%
signal
enhancement,
improved
motion
artifact
irritation
compared
commercialized
Ag/AgCl
electrodes.
Language: Английский
Highly architectural MEW scaffolds with superior performance
Materials & Design,
Journal Year:
2024,
Volume and Issue:
245, P. 113290 - 113290
Published: Sept. 1, 2024
Melt
electrospinning
writing
(MEW)
combines
the
fundamental
principles
of
electrospinning,
a
fiber
forming
technology,
and
3D
printing.
The
process,
however,
is
highly
complex
quality
fabricated
structures
strongly
depends
on
interplay
key
printing
parameter
settings
including
processing
temperature,
applied
voltage,
collection
speed,
pressure.
These
parameters
act
in
unison,
comprising
principal
forces
electrified
jet:
pushing
viscous
polymer
out
nozzle
mechanically
electrostatically
dragging
it
for
deposition
towards
collector.
This
article
will
reveal
correlation
between
process
morphology
curved
fibers
below
critical
translation
speed
(CTS),
prepare
controllable
scaffolds
by
adjusting
electric
field
strength,
which
have
fully
interconnected
pores
allow
cells
to
migrate
proliferate.
Furthermore,
study
verified
advantages
these
through
mechanical
vitro
culture
experiments.
results
showed
that
compared
with
linearly
printed
scaffolds,
exhibited
better
properties
enhanced
cell
attachment
proliferation.
Language: Английский
Gravity-Driven Ultrahigh-Speed Electrospinning for the Production of Ethyl Cellulose Fibers with Tunable Porosity for Oil Absorption
Qiangjun Hao,
No information about this author
John Schossig,
No information about this author
Tyler Davide
No information about this author
et al.
ACS Sustainable Chemistry & Engineering,
Journal Year:
2024,
Volume and Issue:
13(1), P. 507 - 517
Published: Dec. 19, 2024
Ethyl
cellulose
(EC)
is
a
biocompatible,
renewable,
and
recyclable
material
with
diverse
sources,
making
it
an
attractive
candidate
for
industrial
applications.
Electrospinning
has
gained
significant
attention
the
production
of
EC
fibers.
However,
conventional
electrospinning
methods
face
challenges
such
as
bead
formation,
low
yield,
absence
porous
internal
structures,
limiting
both
functional
performance
scalability.
This
study
presents
optimized
approach
producing
fibers
by
using
gravity-driven
ultrahigh-speed
(GUHS-ES)
system.
system
leverages
gravity
to
reshape
Taylor
cone
morphology
during
electrospinning,
enhancing
stability
dramatically
increasing
throughput.
As
flow
rates
increase,
contracts
inward,
while
tip
structure
expands
stabilizes,
reaching
maximum
size
at
ultrahigh
(100–150
mL/h).
unique
enables
fiber
rate
24.5
g/h,
hundreds
times
greater
than
techniques.
Another
advantage
GUHS-ES
its
ability
achieve
high
diameter
uniformity
adjustable
porosity.
At
rates,
pore
sizes
reached
321
nm.
The
highly
exhibited
absorption
capacity
56.6
110.7
their
weight,
exceeding
most
previously
reported
oil-absorbing
materials
demonstrating
efficacy
rapid
waste
oil
absorption.
green,
efficient
technology
represents
promising
advancement
large-scale
application
natural
polymer
broad
implications
sustainable
processes.
Language: Английский