bioRxiv (Cold Spring Harbor Laboratory),
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 16, 2024
Abstract
Light-based
biofabrication
techniques
have
revolutionized
the
field
of
tissue
engineering
and
regenerative
medicine.
Specifically,
projection
structured
light,
where
spatial
distribution
light
is
controlled
at
both
macro-
micro-scale,
has
enabled
precise
fabrication
complex
three-dimensional
structures
with
high
resolution
speed.
However,
despite
almost
two
decades
progress,
processes
been
mostly
limited
to
benchtop
devices
which
limit
flexibility
in
terms
can
occur.
Here,
we
demonstrate
a
Fiber-assisted
Structured
Light
(FaSt-Light)
apparatus
for
rapid
situ
crosslinking
photoresins.
This
approach
uses
image-guide
fiber
bundles
project
bespoke
images
multiple
wavelengths,
enabling
control
different
photoinitiation
systems
chemistries
also
location
fabrication.
We
coupling
sizes
fibers
lenses
attached
be
able
small
(several
mm)
or
large
cm)
material
crosslinking.
FaSt-Light
allows
over
cross-section
crosslinked
resins
enables
introduction
microfilaments
further
guide
cellular
infiltration,
differentiation
anisotropic
matrix
production.
The
proposed
could
lead
new
range
improve
translational
potential
photo-fabricated
tissues
grafts.
Advanced Materials,
Год журнала:
2024,
Номер
36(34)
Опубликована: Янв. 22, 2024
Decellularized
extracellular
matrix
(dECM)-based
hydrogels
are
widely
applied
to
additive
biomanufacturing
strategies
for
relevant
applications.
The
components
and
growth
factors
of
dECM
play
crucial
roles
in
cell
adhesion,
growth,
differentiation.
However,
the
generally
poor
mechanical
properties
printability
have
remained
as
major
limitations
dECM-based
materials.
In
this
study,
heart-derived
(h-dECM)
meniscus-derived
(Ms-dECM)
bioinks
their
pristine,
unmodified
state
supplemented
with
photoinitiator
system
tris(2,2-bipyridyl)
dichlororuthenium(II)
hexahydrate
sodium
persulfate,
demonstrate
cytocompatibility
volumetric
bioprinting
processes.
This
recently
developed
modality
illuminates
a
dynamically
evolving
light
pattern
into
rotating
volume
bioink,
thus
decouples
requirement
strengths
bioprinted
hydrogel
constructs
printability,
allowing
fabrication
sophisticated
shapes
architectures
low-concentration
materials
that
set
within
tens
seconds.
As
exemplary
applications,
cardiac
tissues
volumetrically
using
cardiomyocyte-laden
h-dECM
bioink
showing
favorable
proliferation,
expansion,
spreading,
biomarker
expressions,
synchronized
contractions;
whereas
Ms-dECM
meniscus
structures
embedded
human
mesenchymal
stem
cells
present
appropriate
chondrogenic
differentiation
outcomes.
study
supplies
expanded
libraries
broadens
utilities
toward
tissue
engineering
regenerative
medicine.
Bioactive Materials,
Год журнала:
2024,
Номер
37, С. 348 - 377
Опубликована: Апрель 23, 2024
Setting
time
as
the
fourth
dimension,
4D
printing
allows
us
to
construct
dynamic
structures
that
can
change
their
shape,
property,
or
functionality
over
under
stimuli,
leading
a
wave
of
innovations
in
various
fields.
Recently,
smart
biomaterials,
biological
components,
and
living
cells
into
3D
constructs
with
effects
has
led
an
exciting
field
bioprinting.
bioprinting
gained
increasing
attention
is
being
applied
create
programmed
cell-laden
such
bone,
cartilage,
vasculature.
This
review
presents
overview
on
for
engineering
tissues
organs,
followed
by
discussion
approaches,
technologies,
biomaterials
design,
bioink
requirements,
applications.
While
much
progress
been
achieved,
complex
process
facing
challenges
need
be
addressed
transdisciplinary
strategies
unleash
full
potential
this
advanced
biofabrication
technology.
Finally,
we
present
future
perspectives
rapidly
evolving
bioprinting,
view
its
potential,
increasingly
important
roles
development
basic
research,
pharmaceutics,
regenerative
medicine.
Chemical Reviews,
Год журнала:
2024,
Номер
124(14), С. 8787 - 8822
Опубликована: Июль 5, 2024
Harnessing
light
for
cross-linking
of
photoresponsive
materials
has
revolutionized
the
field
3D
printing.
A
wide
variety
techniques
leveraging
broad-spectrum
shaping
have
been
introduced
as
a
way
to
achieve
fast
and
high-resolution
printing,
with
applications
ranging
from
simple
prototypes
biomimetic
engineered
tissues
regenerative
medicine.
Conventional
light-based
printing
use
material
in
layer-by-layer
fashion
produce
complex
parts.
Only
recently,
new
emerged
which
deploy
multidirection,
tomographic,
light-sheet
or
filamented
image
projections
deep
into
volume
resin-filled
vat
photoinitiation
cross-linking.
These
Deep
Vat
(DVP)
approaches
alleviate
need
layer-wise
enable
unprecedented
fabrication
speeds
(within
few
seconds)
high
resolution
(>10
μm).
Here,
we
elucidate
physics
chemistry
these
processes,
their
commonalities
differences,
well
emerging
biomedical
non-biomedical
fields.
Importantly,
highlight
limitations,
future
scope
research
that
will
improve
scalability
applicability
DVP
engineering
medicine
applications.
ACS Biomaterials Science & Engineering,
Год журнала:
2025,
Номер
11(1), С. 156 - 181
Опубликована: Янв. 2, 2025
Volumetric
additive
manufacturing
(VAM)
is
revolutionizing
the
field
of
cell
printing
by
enabling
rapid
creation
complex
three-dimensional
cellular
structures
that
mimic
natural
tissues.
This
paper
explores
advantages
and
limitations
various
VAM
techniques,
such
as
holographic
lithography,
digital
light
processing,
volumetric
projection,
while
addressing
their
suitability
across
diverse
industrial
applications.
Despite
significant
potential
VAM,
challenges
related
to
regulatory
compliance
scalability
persist,
particularly
in
context
bioprinted
In
India,
lack
clear
guidelines
intellectual
property
protections
poses
additional
hurdles
for
companies
seeking
navigate
evolving
landscape
bioprinting.
study
emphasizes
importance
collaboration
among
industry
stakeholders,
agencies,
academic
institutions
establish
tailored
frameworks
promote
innovation
ensuring
safety
efficacy.
By
bridging
gap
between
technological
advancement
oversight,
can
unlock
new
opportunities
regenerative
medicine
tissue
engineering,
transforming
patient
care
therapeutic
outcomes.
Advanced Healthcare Materials,
Год журнала:
2024,
Номер
13(20)
Опубликована: Апрель 22, 2024
Regenerative
medicine
has
evolved
with
the
rise
of
tissue
engineering
due
to
advancements
in
healthcare
and
technology.
In
recent
years,
bioprinting
been
an
upcoming
approach
traditional
practices,
through
fabrication
functional
by
its
layer-by-layer
deposition
process.
This
overcomes
challenges
such
as
irregular
cell
distribution
limited
density,
it
can
potentially
address
organ
shortages,
increasing
transplant
options.
Bioprinting
fully
organs
is
a
long
stretch
but
advancement
rapidly
growing
precision
compatibility
complex
geometries.
Computational
Fluid
Dynamics
(CFD),
carestone
computer-aided
engineering,
instrumental
assisting
research
development
cutting
costs
saving
time.
CFD
optimizes
testing
parameters
shear
stress,
diffusivity,
viability,
reducing
repetitive
experiments
aiding
material
selection
bioprinter
nozzle
design.
review
discusses
current
application
potential
enhance
technology
that
contribute
evolution
regenerative
medicine.
Materials Today Bio,
Год журнала:
2024,
Номер
28, С. 101185 - 101185
Опубликована: Авг. 5, 2024
3D
bioprinting
technologies
and
bioink
development
are
enabling
significant
advances
in
miniaturized
integrated
biosensors.
For
example,
bioreceptors
can
be
immobilized
within
a
porous
structure
to
significantly
amplify
the
signal,
while
biocompatible
mechanically
flexible
systems
uniquely
enable
wearable
chem-
bio-sensors.
This
advancement
is
accelerating
translation
by
production
of
high
performance,
reproducible,
analytical
devices.
The
formulation
plays
crucial
role
determining
bio-functionality
resulting
printed
structures,
e.g.,
porosity
that
allows
analyte
diffuse
through
structure,
affinity
avidity
receptors,
etc.
review
explores
next
generation
advanced
bioinks
for
biosensor
provides
insights
into
latest
cutting-edge
technologies.
methods
available
fabrication
including
inkjet,
extrusion,
laser-based
bioprinting,
discussed.
advantages
limitations
each
method
analysed,
recent
advancements
presented.
then
delves
properties
bioinks,
such
as
biocompatibility,
printability,
stability,
applicability.
Different
types
explored,
multicomponent,
stimuli-responsive,
conductive
bioinks.
Finally,
biosensors
considered,
identifying
possible
new
opportunities
challenges.
Overall,
this
literature
highlights
combined
importance
high-performance
Virtual and Physical Prototyping,
Год журнала:
2024,
Номер
19(1)
Опубликована: Авг. 5, 2024
Organ
transplantation
is
the
optimal
treatment
for
patients
with
end-stage
organ
failure,
but
which
faces
challenge
of
donor
shortage.
Two-dimensional
cell
culture
and
animal
experiments
are
difficult
to
completely
simulate
complex
cellular
microenvironment
drug
testing.
Three-dimensional
(3D)
bioprinting
an
emerging
manufacturing
technology
fabricate
artificial
tissues
organs
screening.
This
review
first
describes
technologies
used
constructs,
including
jetting-based,
extrusion-based,
vat
photopolymerization-based
methods
other
3D
approaches.
The
various
kinds
bioinks,
sources,
most
recent
applications
in
testing
subsequently
summarized.
Finally,
we
discuss
challenges
prospects
organs.
aims
facilitate
overcoming
obstacles
identified
on
challenging
journey
towards
adoption
tissue
Frontiers in Bioengineering and Biotechnology,
Год журнала:
2025,
Номер
12
Опубликована: Янв. 7, 2025
Biliary
duct
injury,
biliary
atresia
(BA),
tract
tumors,
primary
sclerosing
cholangitis
(PSC),
and
other
diseases
are
commonly
encountered
in
clinical
practice
within
the
digestive
system.
To
gain
a
better
understanding
of
pathogenesis
development
these
explore
more
effective
treatment
methods,
organoid
technology
has
recently
garnered
significant
attention.
Organoids
three-dimensional
structures
derived
from
stem/progenitor
cells
that
can
faithfully
mimic
intricate
structure
physiological
function
tissues
or
organs
vitro.
They
provide
valuable
platform
for
studying
offer
novel
possibilities
repairing
regenerating
injuries.
The
main
seed
used
to
construct
organoids
include
human
epithelial
as
well
pluripotent
stem
cells.
construction
involves
various
techniques
such
traditional
embedding
technology,
rotary
culture
hanging
drop
along
with
emerging
approaches
like
organ
chip
(3D)
printing
four-dimensional
(4D)
technology.
This
article
comprehensively
reviews
methods
while
discussing
their
applications
disease
modeling
research
on
mechanisms
drug
screening
tissue/organ
repair;
it
also
highlights
current
challenges
suggests
future
directions
regarding
which
will
serve
references
treating
common
refractory
system
practice.
Abstract
Current
two-dimensional
(2D)
cell
models
for
effective
drug
screening
suffer
from
significant
limitations
imposed
by
the
lack
of
realism
in
physiological
environment.
Three-dimensional
(3D)
organoids
hold
immense
potential
mimicking
key
functions
human
organs
overcoming
traditional
2D
models.
However,
current
techniques
preparation
3D
had
reproducibility,
scalability,
and
ability
to
closely
replicate
complex
microenvironment
found
vivo
.
Additionally,
culture
systems
often
involve
lengthy
labor-intensive
processes
that
hinder
high-throughput
applications
necessary
a
large-scale
screening.
Advancements
bioprinting
technologies
offer
promising
solutions
these
challenges
enabling
precise
spatial
control
over
placement
material
composition,
thereby
facilitating
creation
more
physiologically
relevant
than
techniques.
This
review
provides
comprehensive
summary
recent
advances
creating
models,
which
begins
with
an
introduction
different
types
(especially
focus
on
volumetric
(VBP)
technique),
followed
overview
bioinks
utilized
bioprinting.
Moreover,
we
also
introduce
disease
efficiency
evaluation
regenerative
medicine.
Finally,
possible
strategies
development
clinical
translation
are
concluded.