Biomedical Materials,
Journal Year:
2022,
Volume and Issue:
17(6), P. 062001 - 062001
Published: Aug. 31, 2022
Abstract
Nature’s
materials
have
evolved
over
time
to
be
able
respond
environmental
stimuli
by
generating
complex
structures
that
can
change
their
functions
in
response
distance,
time,
and
direction
of
stimuli.
A
number
technical
efforts
are
currently
being
made
improve
printing
resolution,
shape
fidelity,
speed
mimic
the
structural
design
natural
with
three-dimensional
printing.
Unfortunately,
this
technology
is
limited
fact
printed
objects
static
cannot
reshaped
dynamically
In
recent
years,
several
smart
been
developed
undergo
dynamic
morphing
a
stimulus,
thus
resolving
issue.
Four-dimensional
(4D)
refers
manufacturing
process
involving
additive
manufacturing,
materials,
specific
geometries.
It
has
become
an
essential
for
biomedical
engineering
potential
create
wide
range
useful
products.
This
paper
will
discuss
concept
4D
bioprinting
developments
which
actuated
different
exploited
develop
biomimetic
structures,
significant
implications
pharmaceutics
research,
as
well
prospects
future.
Reactive and Functional Polymers,
Journal Year:
2022,
Volume and Issue:
179, P. 105374 - 105374
Published: Aug. 10, 2022
4D
bioprinting
is
the
next-generation
additive
manufacturing-based
fabrication
platform
employed
to
construct
intricate,
adaptive,
and
dynamic
soft
hard
tissue
structures
as
well
biomedical
devices.
It
achieved
by
using
stimuli-responsive
materials,
especially
shape
memory
polymers
(SMPs)
hydrogels,
which
possess
desirable
biomechanical
characteristics.
In
last
few
years,
numerous
efforts
have
been
made
printing
community
develop
novel
polymeric
materials
considering
their
perspective.
This
review
presents
an
up-to-date
overview
of
technology
incorporating
functionalities
biomaterials
focused
approach
towards
different
engineering
regenerative
medicine
(TERM)
applications.
includes
bone,
cardiac,
neural,
cartilage,
drug
delivery
systems,
other
high-value
also
addresses
current
limitations
challenges
in
provide
a
basis
for
foreseeable
advancements
TERM
applications
that
could
be
helpful
successful
utilization
clinical
settings.
Advanced Engineering Materials,
Journal Year:
2023,
Volume and Issue:
25(21)
Published: Aug. 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.
Advanced Healthcare Materials,
Journal Year:
2022,
Volume and Issue:
12(16)
Published: Dec. 15, 2022
Abstract
As
a
kind
of
smart
material,
shape
memory
polymer
(SMP)
shows
great
application
potential
in
the
biomedical
field.
Compared
with
traditional
metal‐based
medical
devices,
SMP‐based
devices
have
following
characteristics:
1)
The
adaptive
ability
allows
device
to
better
match
surrounding
tissue
after
being
implanted
into
body
by
minimally
invasive
implantation;
2)
it
has
biocompatibility
and
adjustable
biodegradability;
3)
mechanical
properties
can
be
regulated
large
range
tissue.
4D
printing
technology
is
comprehensive
based
on
materials
3D
printing,
which
value
breaks
through
technical
bottleneck
personalized
customization
provides
new
opportunity
for
further
development
This
paper
summarizes
SMP
field
bone
scaffolds,
tracheal
drug
release,
etc.
Moreover,
this
analyzes
existing
problems
prospects,
hoping
provide
preliminary
discussion
useful
reference
engineering.
European Polymer Journal,
Journal Year:
2024,
Volume and Issue:
205, P. 112718 - 112718
Published: Jan. 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
Giant,
Journal Year:
2023,
Volume and Issue:
17, P. 100209 - 100209
Published: Nov. 15, 2023
Additive
manufacturing
(AM)
aka
three-dimensional
(3D)
printing
has
been
a
well-established
and
unparalleled
technology,
which
is
expanding
the
boundaries
of
materials
science
exhibiting
an
enormous
potential
to
fabricate
intricate
geometries
for
healthcare,
electronics,
construction
sectors.
In
contemporary
era,
combination
AM
technology
stimuli-responsive
hydrogels
(SRHs)
helps
create
dynamic
functional
structures
with
extreme
accuracy,
are
capable
changing
their
shape,
functional,
or
mechanical
properties
in
response
environmental
cues
such
as
humidity,
heat,
light,
pH,
magnetic
field,
electric
etc.
3D
SRHs
permits
creation
on-demand
dynamically
controllable
shapes
excellent
control
over
various
self-repair,
self-assembly,
multi-functionality,
These
accelerate
researchers
think
unthinkable
applications.
Additively
manufactured
objects
have
shown
applications
like
tissue
engineering,
drug
delivery,
soft
robots,
sensors,
other
biomedical
devices.
The
current
review
provides
recent
progress
SRHs,
more
focus
on
techniques,
stimuli
mechanisms,
shape
morphing
behaviors,
Finally,
trends
future
roadmap
additively
smart
different
also
presented,
will
be
helpful
research.
This
holds
great
promise
providing
fundamental
knowledge
about
diverse
Advanced Materials,
Journal Year:
2023,
Volume and Issue:
36(34)
Published: Sept. 22, 2023
Additive
manufacturing
(AM),
which
is
based
on
the
principle
of
layer-by-layer
shaping
and
stacking
discrete
materials,
has
shown
significant
benefits
in
fabrication
complicated
implants
for
tissue
engineering
(TE).
However,
many
native
tissues
exhibit
anisotropic
heterogenous
constructs
with
diverse
components
functions.
Consequently,
replication
biomimetic
using
conventional
AM
processes
a
single
material
challenging.
Multimaterial
3D
4D
bioprinting
(with
time
as
fourth
dimension)
emerged
promising
solution
constructing
multifunctional
that
can
mimic
host
microenvironment
better
than
single-material
alternatives.
Notably,
4D-printed
multimaterial
architectures
provide
time-dependent
programmable
dynamic
promote
cell
activity
regeneration
response
to
external
stimuli.
This
paper
first
presents
typical
design
strategies
TE
applications.
Subsequently,
latest
are
discussed,
along
their
advantages
challenges.
In
particular,
potential
smart
highlighted.
Furthermore,
this
review
provides
insights
into
how
facilitate
realization
next-generation
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
36(34)
Published: June 11, 2024
The
repair
and
functional
reconstruction
of
bone
defects
resulting
from
severe
trauma,
surgical
resection,
degenerative
disease,
congenital
malformation
pose
significant
clinical
challenges.
Bone
tissue
engineering
(BTE)
holds
immense
potential
in
treating
these
defects,
without
incurring
prevalent
complications
associated
with
conventional
autologous
or
allogeneic
grafts.
3D
printing
technology
enables
control
over
architectural
structures
at
multiple
length
scales
has
been
extensively
employed
to
process
biomimetic
scaffolds
for
BTE.
In
contrast
inert
grafts,
next-generation
smart
possess
a
remarkable
ability
mimic
the
dynamic
nature
native
extracellular
matrix
(ECM),
thereby
facilitating
regeneration.
Additionally,
they
can
generate
tailored
controllable
therapeutic
effects,
such
as
antibacterial
antitumor
properties,
response
exogenous
and/or
endogenous
stimuli.
This
review
provides
comprehensive
assessment
progress
3D-printed
BTE
applications.
It
begins
an
introduction
physiology,
followed
by
overview
technologies
utilized
scaffolds.
Notable
advances
various
stimuli-responsive
strategies,
efficacy,
applications
are
discussed.
Finally,
highlights
existing
challenges
development
implementation
scaffolds,
well
emerging
this
field.
Advanced Industrial and Engineering Polymer Research,
Journal Year:
2023,
Volume and Issue:
7(1), P. 20 - 36
Published: Aug. 19, 2023
Additive
Manufacturing
(AM)
has
been
a
noticeable
technology
and
made
significant
progress
since
the
late
1980s.
Despite
tremendous
growth,
this
is
still
facing
numerous
manufacturing
challenges.
AM
of
smart
materials
structures
one
most
actively
researched
areas
in
which
printed
objects
can
alter
their
properties
shape
when
expose
to
stimulus
e.g.,
light,
temperature,
magnetic
fields,
pH,
humidity.
The
AM-build
parts
take
advantage
these
shape-changing
features,
lead
growth
4D
printing
by
introducing
time
as
fourth
dimension
processes.
This
new
filed
originated
2013,
then,
it
generated
great
interest
due
its
potential
build
innovative,
multi-functional,
self-assembling,
self-repairing
components
with
modifiable
properties,
shapes,
functionalities.
review
article
intends
examine
major
developments
biomedical
field.
study
will
provide
an
overview
various
technologies
uses
field,
including
vat
photo-polymerization,
extrusion-based
methods,
material
jetting.
It
focuses
on
applications
industries
mechanical,
biomedical,
aerospace,
etc.,
explores
external
stimuli
such
moisture,
light.
delves
into
promising
fields
drug
delivery,
orthopedics,
medical
devices,
tissue
engineering,
dentistry
analyzes
challenges
associated
suggests
future
directions
optimization
parameters,
exploration
novel
broaden
applications.