Materials,
Journal Year:
2020,
Volume and Issue:
13(5), P. 1048 - 1048
Published: Feb. 26, 2020
In
this
paper,
we
survey
recent
advances
in
the
self-assembly
processes
of
novel
functional
platforms
for
nanomaterials
and
biomaterials
applications.
We
provide
an
organized
overview,
by
analyzing
main
factors
that
influence
formation
organic
nanostructured
systems,
while
putting
into
evidence
challenges,
limitations
emerging
approaches
various
fields
nanotechology
biotechnology.
outline
how
building
blocks
properties,
mutual
cooperative
interactions,
as
well
initial
spatial
configuration
(and
environment
conditions)
play
a
fundamental
role
construction
efficient
materials
with
desired
properties.
The
insertion
endgroups
(such
polymers,
peptides
or
DNA)
within
units
has
enormously
increased
complexity
morphologies
functions
can
be
designed
fabrication
bio-inspired
capable
mimicking
biological
activity.
However,
unwanted
uncontrollable
effects
originating
from
unexpected
thermodynamic
perturbations
complex
interactions
interfere
at
molecular
level
assembly
process.
Correction
harmonization
is
one
major
challenges
next
decades
requires
deeper
knowledge
understanding
key
drive
nanomaterials.
Self-assembly
still
remains
central
topic
current
research
located
interface
between
material
science
engineering,
biotechnology
nanomedicine,
it
will
continue
to
stimulate
renewed
interest
biologist,
physicists
engineers
combining
principles
concept
supramolecular
chemistry.
Polymers,
Journal Year:
2022,
Volume and Issue:
14(1), P. 202 - 202
Published: Jan. 5, 2022
Polylactic
acid
(PLA)
is
a
thermoplastic
polymer
produced
from
lactic
that
has
been
chiefly
utilized
in
biodegradable
material
and
as
composite
matrix
material.
PLA
prominent
biomaterial
widely
used
to
replace
traditional
petrochemical-based
polymers
various
applications
owing
environmental
concerns.
Green
composites
have
gained
greater
attention
ecological
consciousness
grown
since
they
the
potential
be
more
appealing
than
conventional
petroleum-based
composites,
which
are
toxic
nonbiodegradable.
PLA-based
with
natural
fiber
extensively
variety
of
applications,
packaging
medicine,
due
their
biodegradable,
recyclable,
high
mechanical
strength,
low
toxicity,
good
barrier
properties,
friendly
processing,
excellent
characteristics.
A
summary
fibers,
green
PLA,
along
respective
classification,
functionality,
different
processing
methods,
discussed
discover
fiber-reinforced
development
for
wide
range
applications.
This
work
also
emphasizes
research
properties
blend
hybrid
over
past
few
years.
PLA's
strong
engineering
areas
addressed.
review
covers
issues,
challenges,
opportunities,
perspectives
developing
characterizing
composites.
Nanomaterials,
Journal Year:
2020,
Volume and Issue:
10(4), P. 656 - 656
Published: April 1, 2020
Nanomedicine
is
a
field
of
science
that
uses
nanoscale
materials
for
the
diagnosis
and
treatment
human
disease.
It
has
emerged
as
an
important
aspect
therapeutics,
but
at
same
time,
also
raises
concerns
regarding
safety
nanomaterials
involved.
Recent
applications
functionalized
biodegradable
have
significantly
improved
profile
nanomedicine.
ACS Nano,
Journal Year:
2018,
Volume and Issue:
12(6), P. 6179 - 6192
Published: May 30, 2018
Polymer
micelles
are
one
of
the
most
investigated
nanocarriers
for
drug
delivery;
many
have
entered
clinical
trials
and
some
in
clinic
use,
but
their
delivery
systems
not
yet
shown
expected
high
therapeutic
efficacy
clinics.
Further
understanding
vivo
behaviors,
particularly
how
quickly
by
what
mechanism
polymer
cleared
(i.e.,
via
or
unimers)
once
injected,
is
key
to
solving
this
dilemma.
Herein,
we
hope
answer
these
questions
clinically
relevant
polyethylene
glycol-block-poly(ε-caprolactone)
(PEG-PCL)
PEG-block-poly(d,l-lactide)
(PEG-PDLLA)
micelles.
A
small
fraction
hydrophobic
chain
ends
was
conjugated
with
a
pair
fluorescence
resonance
energy
transfer
(FRET)
dyes,
Cy5
Cy5.5,
used
fabricate
FRET
whose
efficiency
correlated
percentage
chains
micelles,
micelle
degree.
In
vitro,
serum
proteins
induced
PEG-PCL
dissociation
extent;
mouse
blood
surprisingly
did
induce
shear
applied
microfluidic
channel
caused
dissociated.
After
intravenous
administration
mice,
PEG-PDLLA
were
sequestered
into
liver
as
unimers,
degree
decreased
about
20%.
The
FRET-imaging
experiments
showed
that
vessels
dissociated
which
found
associated
albumin
liver.
Thus,
it
concluded
that,
upon
injection,
bloodborne
(particularly
albumin)
(∼80%)
dissociate
Kupffer
cells,
while
intact
difficult
clear.
These
able
penetrate
tumors
very
stable
cell
membranes,
gradually
inside
cells.
findings
on
fate
clearance
directional
rational
design
improved
therapeutics;
particularly,
improving
stability
prerequisite
surface
functionalizations
such
introducing
targeting
ligands.
Advanced Materials,
Journal Year:
2018,
Volume and Issue:
30(31)
Published: June 19, 2018
To
avoid
large
open
surgery
using
scaffold
transplants,
small-sized
cell
carriers
are
employed
to
repair
complexly
shaped
tissue
defects.
However,
most
show
poor
adherences
and
viability.
Therefore,
polyhydroxyalkanoate
(PHA),
a
natural
biopolymer,
is
used
prepare
highly
porous
microspheres
(OPMs)
of
300-360
µm
in
diameter,
combining
the
advantages
scaffolds
serve
as
injectable
harboring
proliferating
stem
cells.
In
addition
convenient
injection
defected
tissue,
contrast
performances
OPMs
made
polylactides
(PLA
OPMs)
traditional
less
hollow
(PHA
HMs),
PHA
present
suitable
surface
pores
10-60
interconnected
passages
with
an
average
size
8.8
µm,
leading
high
vitro
adhesion
93.4%,
continuous
proliferation
for
10
d
improved
differentiation
human
bone
marrow
mesenchymal
cells
(hMSCs).
also
support
stronger
osteoblast-regeneration
compared
HMs,
PLA
OPMs,
commercial
hyaluronic
acid
hydrogels,
carrier-free
hMSCs
ectopic
bone-formation
mouse
model.
protect
against
stresses
during
injection,
allowing
more
living
proliferate
migrate
damaged
tissues.
They
function
like
micro-Noah's
Ark
safely
transport
defect
tissue.
Polymer,
Journal Year:
2021,
Volume and Issue:
230, P. 124080 - 124080
Published: Aug. 9, 2021
Additive
manufacturing
has
attracted
much
attention
in
the
last
decade
as
a
principal
growing
sector
of
complex
manufacturing.
Precise
layer-by-layer
patterning
materials
gives
rise
to
novel
designs
and
fabrication
strategies
that
were
previously
not
possible
realize
with
conventional
techniques.
Using
suitable
organized
variation
printing
settings,
parts
time-dependent
shapes
can
be
tuned
through
environmental
stimuli
realized.
Given
these
either
change
their
shape
over
time
pre-programmed
three-dimensional
or
revert
an
initial
design,
this
process
become
referred
four-dimensional
(4D)
printing.
In
regard,
commonly-used
polylactic
acid
(PLA)
polymer
been
recognized
compelling
material
candidate
for
4D
it
is
biobased
great
memory
behavior
employed
design
broad
range
smart
products.
review,
we
investigate
properties
PLA
first
section.
Then,
discuss
potential
printing,
including
principles
underlying
strategy
PLA-based
self-folding
structures.
The
resulting
exhibit
response
stimulus
well
temperature,
magnetic
field,
light.
We
additionally
impact
geometrical
conditions
on
functionality
final
printed
Bioengineering,
Journal Year:
2017,
Volume and Issue:
5(1), P. 2 - 2
Published: Dec. 24, 2017
3D
printing
represents
a
valuable
alternative
to
traditional
processing
methods,
clearly
demonstrated
by
the
promising
results
obtained
in
manufacture
of
various
products,
such
as
scaffolds
for
regenerative
medicine,
artificial
tissues
and
organs,
electronics,
components
automotive
industry,
art
objects
so
on.
This
revolutionary
technique
showed
unique
capabilities
fabricating
complex
structures,
with
precisely
controlled
physical
characteristics,
facile
tunable
mechanical
properties,
biological
functionality
easily
customizable
architecture.
In
this
paper,
we
provide
an
overview
main
3D-printing
technologies
currently
employed
case
poly
(lactic
acid)
(PLA)
polyhydroxyalkanoates
(PHA),
two
most
important
classes
thermoplastic
aliphatic
polyesters.
Moreover,
short
presentation
methods
is
briefly
discussed.
Both
PLA
PHA,
form
filaments
or
powder,
proved
be
suitable
fabrication
tissue
bone
regeneration.
The
processability
PHB
blends
composites
fabricated
through
different
techniques,
their
final
characteristics
targeted
applications
bioengineering
are
thoroughly
reviewed.