ACS Central Science,
Год журнала:
2024,
Номер
10(2), С. 272 - 282
Опубликована: Янв. 16, 2024
The
rapid
photochemical
conversion
of
materials
from
liquid
to
solid
(i.e.,
curing)
has
enabled
the
fabrication
modern
plastics
used
in
microelectronics,
dentistry,
and
medicine.
However,
industrialized
photocurables
remain
restricted
unimolecular
bond
homolysis
reactions
(Type
I
photoinitiations)
that
are
driven
by
high-energy
UV
light.
This
narrow
mechanistic
scope
both
challenges
production
high-resolution
objects
restricts
can
be
produced
using
emergent
manufacturing
technologies
(e.g.,
3D
printing).
Herein
we
develop
a
photosystem
based
on
triplet-triplet
annihilation
upconversion
(TTA-UC)
efficiently
drives
Type
photocuring
process
green
light
at
low
power
density
(<10
mW/cm2)
presence
ambient
oxygen.
system
also
exhibits
superlinear
dependence
its
cure
depth
exposure
intensity,
which
enhances
spatial
resolution.
enables
for
first-time
integration
TTA-UC
an
inexpensive,
rapid,
process,
digital
processing
(DLP)
printing.
Moreover,
relative
traditional
II
(photoredox)
strategies,
present
photoinitiation
method
results
improved
confinement
resin
shelf
stability.
report
provides
user-friendly
avenue
utilize
processes
paves
way
toward
next-generation
with
geometric
precision
functionality.
Advanced Functional Materials,
Год журнала:
2023,
Номер
33(39)
Опубликована: Март 22, 2023
Abstract
The
rapid
development
of
additive
manufacturing
has
fueled
a
revolution
in
various
research
fields
and
industrial
applications.
Among
the
myriad
advanced
3D
printing
techniques,
two‐photon
polymerization
lithography
(TPL)
uniquely
offers
significant
advantage
nanoscale
print
resolution,
been
widely
employed
diverse
fields,
for
example,
life
sciences,
materials
mechanics,
microfluidics.
More
recently,
by
virtue
optical
transparency
most
resins
used,
TPL
is
finding
new
applications
optics
photonics,
with
nanometer
to
millimeter
feature
dimensions.
It
enables
minimization
elements
systems,
exploration
light‐matter
interactions
degrees
freedom,
never
possible
before.
To
review
recent
progress
related
research,
it
starts
fundamentals
material
formulation,
then
discusses
novel
fabrication
methods,
wide
range
These
notably
include
diffractive,
topological,
quantum,
color
optics.
With
panoramic
view
development,
concluded
insights
perspectives
future
potential
Abstract
Two‐photon
polymerization
(TPP)
has
become
a
premier
state‐of‐the‐art
method
for
microscale
fabrication
of
bespoke
polymeric
devices
and
surfaces.
With
applications
ranging
from
the
production
optical,
drug
delivery,
tissue
engineering,
microfluidic
devices,
TPP
grown
immensely
in
past
two
decades.
Significantly,
field
expanded
standard
acrylate‐
epoxy‐based
photoresists
to
custom
formulated
monomers
designed
change
hydrophilicity,
surface
chemistry,
mechanical
properties,
more
resulting
structures.
This
review
explains
essentials
TPP,
its
initial
conception
through
operating
principles
advanced
chemical
modification
strategies
materials.
At
outset,
fundamental
chemistries
radical
cationic
are
described,
along
with
used
tailor
functional
properties.
then
describes
systems
introduces
an
array
commonly
including
hard
polyacrylic
resins,
soft
hydrogel
acrylic
esters,
epoxides,
organic/inorganic
hybrid
Specific
examples
each
class—including
chemically
modified
photoresists—are
described
inform
understanding
their
fields
tissue‐engineering
scaffolds,
micromedical,
delivery
devices.
European Polymer Journal,
Год журнала:
2024,
Номер
205, С. 112718 - 112718
Опубликована: Янв. 2, 2024
In
the
contemporary
era,
novel
manufacturing
technologies
like
additive
(AM)
have
revolutionized
different
engineering
sectors
including
biomedical,
aerospace,
electronics,
etc.
Four-dimensional
(4D)
printing
aka
AM
of
smart
materials
is
gaining
popularity
among
scientific
community,
which
has
excellent
ability
to
make
soft
structures
such
as
robots,
actuators,
and
grippers.
These
are
developed
by
applying
various
stimuli
pH,
temperature,
magnetic
field,
many
combinations
onto
materials.
Stimuli
in
3D
permit
shape-morphing
behaviors
bending,
twisting,
folding,
swelling,
rolling,
shrinking,
origami,
or
locomotion.
A
wide
variety
can
be
fabricated
through
incorporation
hard
particles
into
resulting
magneto-active
(MASMs).
With
this
integration,
magneto-thermal
coupling
actuation
allows
diverse
magneto-deformations,
facilitating
development
personalized
devices
that
capable
enhanced
deformation.
review,
guidelines
provided
on
for
MASMs
polymers
(MAPs),
composites,
hydrogels
(MAHs)
booming
flexible
wearable
biomimetic
devices.
Moreover,
3D-printed
robotics
an
outstanding
capacity
adapt
complicated
situations
advanced
actuating
applications.
Finally,
some
current
challenges
emerging
areas
exciting
technology
been
proposed.
Lastly,
it
anticipated
technological
advancements
developing
intelligent
will
a
significant
impact
design
real-world
Advanced Engineering Materials,
Год журнала:
2023,
Номер
25(21)
Опубликована: Авг. 29, 2023
Stimuli‐responsive
polymers
(SRPs)
are
special
types
of
soft
materials,
which
have
been
extensively
used
for
developing
flexible
actuators,
robots,
wearable
devices,
sensors,
self‐expanding
structures,
and
biomedical
thanks
to
their
ability
change
shapes
functional
properties
in
response
external
stimuli
including
light,
humidity,
heat,
pH,
electric
field,
solvent,
magnetic
field
or
combinations
two
more
these
stimuli.
In
recent
years,
additive
manufacturing
(AM)
aka
3D
printing
technology
SRPs,
also
known
as
4D
printing,
has
gained
phenomenal
attention
different
engineering
fields,
its
unique
develop
complex,
personalized,
innovative
undergo
twisting,
elongating,
swelling,
rolling,
shrinking,
bending,
spiraling,
other
complex
morphological
transformations.
Herein,
an
effort
made
provide
insightful
information
about
the
AM
techniques,
type
applications
including,
but
not
limited
tissue
engineering,
bionics,
construction,
smart
textiles.
This
article
incorporates
current
challenges
prospects,
hoping
basis
utilization
this
fields.
It
is
expected
that
amalgamation
with
SRPs
would
unparalleled
advantages
arenas.
Inventions,
Год журнала:
2023,
Номер
8(4), С. 103 - 103
Опубликована: Авг. 11, 2023
This
general
review
paper
presents
a
condensed
view
of
recent
inventions
in
the
Additive
Manufacturing
(AM)
field.
It
outlines
factors
affecting
development
and
commercialization
via
research
collaboration
discusses
breakthroughs
materials
AM
technologies
their
integration
with
emerging
technologies.
The
explores
impact
across
various
sectors,
including
aerospace,
automotive,
healthcare,
food,
construction
industries,
since
1970s.
also
addresses
challenges
future
directions,
such
as
hybrid
manufacturing
bio-printing,
along
socio-economic
environmental
implications.
collaborative
study
provides
concise
understanding
latest
AM,
offering
valuable
insights
for
researchers,
practitioners,
decision
makers
diverse
industries
institutions.
Advanced Functional Materials,
Год журнала:
2024,
Номер
34(40)
Опубликована: Июль 26, 2024
Abstract
The
use
of
photons
to
directly
or
indirectly
drive
chemical
reactions
has
revolutionized
the
field
nanomaterial
synthesis
resulting
in
appearance
new
sustainable
laser
chemistry
methods
for
manufacturing
micro‐
and
nanostructures.
incident
radiation
triggers
a
complex
interplay
between
physical
processes
at
interface
solid
surface
liquid
gas
environment.
In
such
multi‐parameter
system,
precise
control
over
nanostructures
is
not
possible
without
deep
understanding
both
environment‐affected
processes.
present
review
intends
provide
detailed
systematization
these
surveying
well‐established
emerging
technologies
production
advanced
nanomaterials.
Both
gases
liquids
are
considered
as
potential
reacting
environments
affecting
fabrication
process,
while
subtractive
additive
analyzed.
Finally,
prospects
applications
discussed.
International Journal of Extreme Manufacturing,
Год журнала:
2024,
Номер
6(4), С. 042002 - 042002
Опубликована: Март 20, 2024
Abstract
Optical
imaging
systems
have
greatly
extended
human
visual
capabilities,
enabling
the
observation
and
understanding
of
diverse
phenomena.
Imaging
technologies
span
a
broad
spectrum
wavelengths
from
x-ray
to
radio
frequencies
impact
research
activities
our
daily
lives.
Traditional
glass
lenses
are
fabricated
through
series
complex
processes,
while
polymers
offer
versatility
ease
production.
However,
modern
applications
often
require
lens
assemblies,
driving
need
for
miniaturization
advanced
designs
with
micro-
nanoscale
features
surpass
capabilities
traditional
fabrication
methods.
Three-dimensional
(3D)
printing,
or
additive
manufacturing,
presents
solution
these
challenges
benefits
rapid
prototyping,
customized
geometries,
efficient
production,
particularly
suited
miniaturized
optical
devices.
Various
3D
printing
methods
demonstrated
advantages
over
counterparts,
yet
remain
in
achieving
resolutions.
Two-photon
polymerization
lithography
(TPL),
technique,
enables
intricate
structures
beyond
diffraction
limit
via
nonlinear
process
two-photon
absorption
within
liquid
resin.
It
offers
unprecedented
abilities,
e.g.
alignment-free
fabrication,
prototyping
almost
arbitrary
nanostructures.
In
this
review,
we
emphasize
importance
criteria
performance
evaluation
devices,
discuss
material
properties
relevant
TPL,
techniques,
highlight
application
TPL
imaging.
As
first
panoramic
review
on
topic,
it
will
equip
researchers
foundational
knowledge
recent
advancements
optics,
promoting
deeper
field.
By
leveraging
its
high-resolution
capability,
extensive
range,
true
processing,
alongside
advances
materials,
design,
envisage
disruptive
solutions
current
promising
incorporation
future
applications.
Laser & Photonics Review,
Год журнала:
2024,
Номер
18(7)
Опубликована: Март 26, 2024
Abstract
Lasers
are
instrumental
in
enabling
precise
processing
and
fostering
the
development
of
new
technologies.
Particularly,
ultrafast
lasers,
due
to
their
unique
interaction
with
matter,
can
achieve
not
only
exceptional
spatial
precision
but
also
meticulously
determine
degree
modification.
A
prime
example
this
is
laser‐based
3D
printing
through
multi‐photon
lithography
(MPL).
This
approach
remarkably
enables
true
structures
at
micro‐
nanoscale,
without
need
for
masks
or
cumbersome
tools,
simply
by
using
computer‐aided
designs.
Owing
these
capabilities,
MPL
has
emerged
as
a
powerful
manufacturing
technique
across
various
multidisciplinary
fields.
The
ongoing
growth
MPL's
utilization
led
notable
advancements
highly
complex
on
different
substrates,
well
improvements
resolution
throughput,
novel
photosensitive
materials,
which
impressively
facilitated
expansion
into
broader
fields
over
last
few
years.
In
perspective
article,
aim
highlight
recent
trends
MPL.
current
challenges
will
be
explored,
addressed
ensure
its
further
integration
advanced
Additive
Manufacturing
nanoscale.
future
perspectives
opportunities
discussed.
Applied Sciences,
Год журнала:
2024,
Номер
14(21), С. 9919 - 9919
Опубликована: Окт. 30, 2024
In
the
era
of
Industry
4.0,
3D
printing,
or
additive
manufacturing
(AM),
has
revolutionized
product
design
and
across
various
sectors.
This
review
explores
evolution
printing
technology
its
impact
on
industrial
innovation,
highlighting
advancements
in
aeronautics,
automotive
industry,
biomedicine.
Various
AM
processes,
such
as
binder
jetting,
direct
energy
deposition,
powder
bed
fusion,
materials
like
metals,
polymers,
ceramics,
composites,
are
discussed.
Innovations
high-speed
sintering,
continuous
liquid
interface
production,
bioprinting
demonstrate
ongoing
advancements.
The
potential
personalized
medical
applications
is
emphasized
due
to
flexibility
geometry
materials.
Despite
progress,
challenges
standardization,
material
quality,
recycling,
sustainability,
economic
feasibility
hinder
widespread
adoption.
Overcoming
these
crucial
for
optimizing
technologies,
ensuring
high-quality,
efficient,
affordable
production.
also
addresses
future
prospects
4D
5D
technologies
their
industries.
overview
underscores
printing’s
role
shaping
within
context
5.0,
emphasizing
human–machine
collaboration
sustainability.
Chemical Reviews,
Год журнала:
2024,
Номер
124(3), С. 860 - 888
Опубликована: Янв. 30, 2024
Printing
of
stretchable
conductors
enables
the
fabrication
and
rapid
prototyping
electronic
devices.
For
such
applications,
there
are
often
specific
process
material
requirements
as
print
resolution,
maximum
strain,
electrical/ionic
conductivity.
This
review
highlights
common
printing
methods
compatible
inks
that
produce
conductors.
The
compares
capabilities,
benefits,
limitations
each
approach
to
help
guide
selection
a
suitable
ink
for
an
intended
application.
We
also
discuss
design
fabricate
composites
with
desired
properties
(e.g.,
electrical
conductance,
viscosity,
printability).
should
inform
ongoing
future
efforts
create
soft,
devices
wearables,
soft
robots,
e-skins,
sensors.