Polymers,
Journal Year:
2021,
Volume and Issue:
13(4), P. 598 - 598
Published: Feb. 17, 2021
Additive
manufacturing
(3D
printing)
has
significantly
changed
the
prototyping
process
in
terms
of
technology,
construction,
materials,
and
their
multiphysical
properties.
Among
most
popular
3D
printing
techniques
is
vat
photopolymerization,
which
ultraviolet
(UV)
light
deployed
to
form
chains
between
molecules
liquid
light-curable
resin,
crosslink
them,
as
a
result,
solidify
resin.
In
this
manuscript,
three
photopolymerization
technologies,
namely,
stereolithography
(SLA),
digital
processing
(DLP),
continuous
(CDLP),
are
reviewed.
Additionally,
after-cured
mechanical
properties
resin
materials
listed,
along
with
number
case
studies
showing
applications
practice.
The
manuscript
aims
at
providing
an
overview
future
trend
technology
inspire
readers
engage
further
research
field,
especially
regarding
developing
new
mathematical
models
for
microrods
bionic
structures.
Polymers,
Journal Year:
2021,
Volume and Issue:
13(18), P. 3101 - 3101
Published: Sept. 15, 2021
Additive
manufacturing
(AM)
or
3D
printing
is
a
digital
process
and
offers
virtually
limitless
opportunities
to
develop
structures/objects
by
tailoring
material
composition,
processing
conditions,
geometry
technically
at
every
point
in
an
object.
In
this
review,
we
present
three
different
early
adopted,
however,
widely
used,
polymer-based
processes;
fused
deposition
modelling
(FDM),
selective
laser
sintering
(SLS),
stereolithography
(SLA)
create
polymeric
parts.
The
main
aim
of
review
offer
comparative
overview
correlating
polymer
material-process-properties
for
techniques.
Moreover,
the
advanced
material-process
requirements
towards
4D
via
these
print
methods
taking
example
magneto-active
polymers
covered.
Overall,
highlights
aspects
serves
as
guide
select
suitable
technique
targeted
material-based
applications
also
discusses
implementation
practices
systems
with
current
state-of-the-art
approach.
International Journal of Extreme Manufacturing,
Journal Year:
2020,
Volume and Issue:
2(2), P. 022004 - 022004
Published: April 27, 2020
Abstract
Projection
micro
stereolithography
(P
μ
SL)
is
a
high-resolution
(up
to
0.6
m)
3D
printing
technology
based
on
area
projection
triggered
photopolymerization,
and
capable
of
fabricating
complex
architectures
covering
multiple
scales
with
materials.
This
paper
reviews
the
recent
development
P
SL
technologies,
together
related
applications.
It
introduces
working
principle,
commercialized
products,
multiscale,
multimaterial
capability
as
well
some
functional
photopolymers
that
are
suitable
SL.
review
also
summarizes
few
typical
applications
including
mechanical
metamaterials,
optical
components,
4D
printing,
bioinspired
materials
biomedical
applications,
offers
perspectives
directions
further
technology.
Small,
Journal Year:
2020,
Volume and Issue:
16(35)
Published: July 30, 2020
Three-dimensional
(3D)
bioprinting
has
recently
advanced
as
an
important
tool
to
produce
viable
constructs
that
can
be
used
for
regenerative
purposes
or
tissue
models.
To
develop
biomimetic
and
sustainable
3D
constructs,
several
processing
aspects
need
considered,
among
which
crosslinking
is
most
achieving
desirable
biomechanical
stability
of
printed
structures,
reflected
in
subsequent
behavior
use
these
constructs.
In
this
work,
methods
studies
are
reviewed,
parameters
affect
bioink
chemistry
discussed,
the
potential
toward
improving
outcomes
construct
performance
highlighted.
Furthermore,
current
challenges
future
prospects
discussed.
Due
direct
connection
between
properties
bioprinted
Review
provide
a
basis
developing
necessary
modifications
design
manufacturing
process
tissue-like
future.
Advanced Functional Materials,
Journal Year:
2020,
Volume and Issue:
30(11)
Published: Feb. 4, 2020
Abstract
Microneedle
(MN),
a
miniaturized
needle
with
length‐scale
of
hundreds
micrometers,
has
received
great
deal
attention
because
its
minimally
invasive,
pain‐free,
and
easy‐to‐use
nature.
However,
major
challenge
for
controlled
long‐term
drug
delivery
or
biosensing
using
MN
is
low
tissue
adhesion.
Although
microscopic
structures
high
adhesion
are
found
from
living
creatures
in
nature
(e.g.,
microhooks
parasites,
barbed
stingers
honeybees,
quills
porcupines),
creating
MNs
such
complex
features
still
challenging
traditional
fabrication
methods.
Here,
bioinspired
backward‐facing
curved
barbs
enhanced
adhesion,
manufactured
by
digital
light
processing
3D
printing
technique,
presented.
Backward‐facing
on
created
desolvation‐induced
deformation
utilizing
cross‐linking
density
gradient
photocurable
polymer.
Barb
thickness
bending
curvature
parameters
material
composition.
It
demonstrated
that
18
times
stronger
than
barbless
MN.
Also
sustained
release
tissue.
Improved
the
allows
more
stable
robust
performance
delivery,
biofluid
collection,
biosensing.
Nature Communications,
Journal Year:
2021,
Volume and Issue:
12(1)
Published: April 28, 2021
Abstract
Self-healing
hydrogels
may
mimic
the
behavior
of
living
tissues,
which
can
autonomously
repair
minor
damages,
and
therefore
have
a
high
potential
for
application
in
biomedicine.
So
far,
such
been
processed
only
via
extrusion-based
additive
manufacturing
technology,
limited
freedom
design
resolution.
Herein,
we
present
3D-printed
hydrogel
with
self-healing
ability,
fabricated
using
commercially
available
materials
commercial
Digital
Light
Processing
printer.
These
are
based
on
semi-interpenetrated
polymeric
network,
enabling
self-repair
printed
objects.
The
autonomous
restoration
occurs
rapidly,
at
room
temperature,
without
any
external
trigger.
After
rejoining,
samples
withstand
deformation
recovered
72%
their
initial
strength
after
12
hours.
proposed
approach
enables
3D
printing
objects
complex
architecture,
paving
way
future
applications
diverse
fields,
ranging
from
soft
robotics
to
energy
storage.
