The Science of The Total Environment,
Journal Year:
2024,
Volume and Issue:
917, P. 170423 - 170423
Published: Jan. 26, 2024
This
study
reports
a
facile
technique
to
synthesize
and
tune
the
cationic
polymer,
poly(3-acrylamidopropyl)trimethylammonium
chloride
(PAPTAC),
in
terms
of
molecular
weight
surface
change
for
harvesting
three
microalgae
species
(Scenedesmus
sp.,
P.purpureum,
C.
vulgaris).
The
PAPTAC
polymer
was
synthesised
by
UV-induced
free-radical
polymerisation.
Polymer
tuning
demonstrated
regulating
monomer
concentration
(60
360
mg/mL)
UV
power
(36
60
W)
obtained
evaluated
different
compared
commercially
available
polymer.
highest
flocculation
efficiency
Scenedesmus
sp.
P.
purpureum
observed
at
dosage
25
mg-polymer/g
dry
biomass
using
PAPTAC-90,
resulting
higher
than
commercial
Results
this
show
evidence
effective
neutralisation
negative
charge
cells
produced
bridging
flocculation.
less
vulgaris,
possibly
due
other
factors
such
as
cell
morphology
composition
extracellular
polymeric
substances
membrane
that
may
also
influence
performance.
Macromolecules,
Journal Year:
2022,
Volume and Issue:
55(15), P. 6695 - 6702
Published: July 25, 2022
We
report
the
preparation
of
degradable
polymer
networks
by
conventional
free
radical
copolymerization
n-butyl
acrylate
with
a
crosslinker
(1
mol
%)
and
dibenzo[c,e]oxepane-5-thione
(DOT)
as
strand-cleaving
comonomer.
Addition
only
4
%
DOT
imparts
synthesized
full
degradability
aminolysis,
whereas
gels
less
(2–3
cannot
be
degraded.
This
data
confirms
recently
proposed
reverse
gel-point
model
for
prepared
polymerization
demonstrates
importance
considering
kinetics
when
designing
fully
gels.
Notably,
even
though
significantly
slows
down
delays
gelation,
it
has
minimal
effect
on
physical
properties
such
shear
storage
modulus,
equilibrium
swelling
ratio,
glass
transition
temperature,
or
thermal
stability.
Advanced Materials,
Journal Year:
2023,
Volume and Issue:
unknown
Published: Feb. 21, 2023
Cell
therapies
are
emerging
as
a
promising
new
therapeutic
modality
in
medicine,
generating
effective
treatments
for
previously
incurable
diseases.
Clinical
success
of
cell
has
energized
the
field
cellular
engineering,
spurring
further
exploration
novel
approaches
to
improve
their
performance.
Engineering
surfaces
using
natural
and
synthetic
materials
emerged
valuable
tool
this
endeavor.
This
review
summarizes
recent
advances
development
technologies
decorating
with
various
including
nanoparticles,
microparticles,
polymeric
coatings,
focusing
on
ways
which
surface
decorations
enhance
carrier
cells
effects.
Key
benefits
surface-modified
include
protecting
cell,
reducing
particle
clearance,
enhancing
trafficking,
masking
cell-surface
antigens,
modulating
inflammatory
phenotype
cells,
delivering
agents
target
tissues.
While
most
these
still
proof-of-concept
stage,
efficacy
constructs
from
vitro
vivo
preclinical
studies
laid
strong
foundation
eventual
clinical
translation.
engineering
can
imbue
diverse
range
advantages
therapy,
creating
opportunities
innovative
functionalities,
improved
efficacy,
transforming
fundamental
translational
landscape
therapies.
Gels,
Journal Year:
2023,
Volume and Issue:
9(2), P. 94 - 94
Published: Jan. 21, 2023
The
grafting
of
a
stimuli-responsive
polymer
(poly(dimethylaminoethyl
methacrylate))
onto
cellulose
was
achieved
by
performing
free
radical
polymerization
vinyl/divinyl
monomer
in
solution.
and
crosslinking
efficiency
the
material
have
been
increased
subsequent
irradiation
samples
with
ionizing
radiation
(doses
10,
30,
or
100
kGy).
relative
amount
poly(dimethylaminoethyl
methacrylate)
prepared
hydrogels
determined
infrared
spectroscopy.
swelling
behavior
studied
thoroughly,
including
microgelation
extent,
equilibrium
swelling,
reswelling
degree,
as
well
dependence
on
gelation
procedure.
dynamic
viscoelastic
also
studied.
tan
δ
values
indicate
solid-like
while
obtained
complex
modulus
range
14–39
kPa,
which
is
suitable
for
used
biomedical
applications.
In
addition,
incorporation
Ag
particles
adsorption
Fe3+
ions
were
tested
to
evaluate
additional
functionalities
hydrogels.
It
found
that
introduction
PDMAEMA
enhanced
their
ability
synthesize
absorb
ions,
providing
platform
potential
preparation
treatment
wounds.
The Science of The Total Environment,
Journal Year:
2024,
Volume and Issue:
917, P. 170423 - 170423
Published: Jan. 26, 2024
This
study
reports
a
facile
technique
to
synthesize
and
tune
the
cationic
polymer,
poly(3-acrylamidopropyl)trimethylammonium
chloride
(PAPTAC),
in
terms
of
molecular
weight
surface
change
for
harvesting
three
microalgae
species
(Scenedesmus
sp.,
P.purpureum,
C.
vulgaris).
The
PAPTAC
polymer
was
synthesised
by
UV-induced
free-radical
polymerisation.
Polymer
tuning
demonstrated
regulating
monomer
concentration
(60
360
mg/mL)
UV
power
(36
60
W)
obtained
evaluated
different
compared
commercially
available
polymer.
highest
flocculation
efficiency
Scenedesmus
sp.
P.
purpureum
observed
at
dosage
25
mg-polymer/g
dry
biomass
using
PAPTAC-90,
resulting
higher
than
commercial
Results
this
show
evidence
effective
neutralisation
negative
charge
cells
produced
bridging
flocculation.
less
vulgaris,
possibly
due
other
factors
such
as
cell
morphology
composition
extracellular
polymeric
substances
membrane
that
may
also
influence
performance.
