Journal of Ovonic Research,
Год журнала:
2025,
Номер
21(1), С. 29 - 35
Опубликована: Янв. 9, 2025
In
this
work,
an
innovative
approach
for
the
synthesis
of
ZnO
QDs-GO
core-shell
nanostructures
by
ultrasonic
bath
sonochemistry
is
presented.
This
method
allows
formation
with
a
QDs
core
and
outer
layer
GO
sheets,
optimizing
interaction.
The
proposed
concentration
conditions
precursors
achieve
morphological
control
structural
properties
nanostructures.
characterizations
carried
out
FT-IR,
Raman
TEM
confirm
successful
CS
structure.
work
provides
significant
advance
in
compression
nanohybrid
structures,
redesigning
various
technologies.
ACS Polymers Au,
Год журнала:
2024,
Номер
4(3), С. 189 - 207
Опубликована: Фев. 29, 2024
In
recent
times,
the
evolution
of
cationic
polymerization
has
taken
a
multidirectional
approach,
with
development
reversible
addition-fragmentation
chain
transfer
(RAFT)
polymerization.
contrast
to
conventional
methods,
which
were
typically
carried
out
under
inert
atmospheres
and
low
temperatures,
various
novel
techniques
have
been
developed
where
reactions
are
in
open
air,
operate
at
room
temperature,
cost-effective,
environmentally
friendly.
Besides,
several
external
stimuli,
such
as
heat,
light,
chemicals,
electrical
potential,
etc.
employed
activate
control
process.
It
also
enables
combination
other
methods
single
reaction
vessel,
eliminating
necessity
for
isolation
purification
during
intermediate
steps.
addition,
significant
advancements
made
through
modifications
catalyst
systems,
resulting
polymers
an
exceptionally
high
level
stereoregularity.
This
review
article
comprehensively
analyses
developments
polymerization,
encompassing
their
applications
offering
insights
into
future
perspectives.
Biomaterials Science,
Год журнала:
2024,
Номер
12(20), С. 5164 - 5185
Опубликована: Янв. 1, 2024
In
recent
years,
poly(vinylidene
fluoride)
(PVDF)
has
emerged
as
a
versatile
polymer
with
wide
range
of
applications
across
various
fields.
PVDF's
piezosensitivity,
versatility,
crystalline
structure,
and
tunable
parameters
have
established
it
highly
sought-after
material.
Furthermore,
PVDF
its
copolymers
exhibit
excellent
processability
chemical
resistance
to
diverse
array
substances.
Of
particular
significance
is
remarkable
structural
stability
in
physiological
media,
which
highlights
potential
for
use
the
development
biomedical
products.
This
review
offers
comprehensive
overview
latest
advancements
PVDF-based
systems.
It
examines
fabrication
stimulus-responsive
delivery
systems,
bioelectric
therapy
devices,
tissue-regenerating
scaffolds,
all
harness
piezosensitivity
PVDF.
Moreover,
both
invasive
non-invasive
diagnostic
tools
investigated,
emphasis
on
flexibility,
transparency,
piezoelectric
efficiency.
The
material's
high
biocompatibility
are
paramount
importance
implantable
sensors
long-term
health
monitoring,
crucial
management
chronic
diseases
postoperative
care.
Additionally,
we
discuss
novel
approach
photoacoustic
microscopy
that
employs
sensor,
thereby
eliminating
necessity
external
contrast
agents.
technique
provides
new
avenue
imaging
applications.
Finally,
explore
challenges
prospects
systems
distinctive
comparison
other
reviews
due
concentrated
examination
applications,
including
pioneering
techniques,
detailed
account
field.
Collectively,
these
elements
illustrate
markedly
influence
engineering
patient
care,
distinguishing
from
existing
literature.
By
leveraging
attributes
copolymers,
researchers
can
continue
advance
frontiers
engineering,
transform
care
treatment
outcomes.
Chemical Communications,
Год журнала:
2024,
Номер
60(19), С. 2591 - 2604
Опубликована: Янв. 1, 2024
Poly(ethylene
glycol)
(PEG)
particles
can
be
prepared
using
templating
and
self-assembly
methods
endowed
with
stealth
targeting
properties
for
targeted
drug
delivery.
The
direct
application
of
liquid
marbles
in
electromagnetic
wave
(EMW)
absorption
is
challenging
due
to
their
poor
stability,
susceptibility
gravitational
collapse,
and
shaping
difficulties.
To
address
this
issue,
a
novel
strategy
proposed
incorporate
marble
microstructures
(NaCl/nano-SiO
Macromolecules,
Год журнала:
2024,
Номер
57(15), С. 6954 - 6967
Опубликована: Авг. 5, 2024
The
external
force
field
has
a
profound
influence
on
the
molecular
structure
and
properties
of
polymers,
but
effect
supercritical
carbon
dioxide
(scCO2)
flow
dynamics
(MD)
thermoplastic
polyurethane
(TPU)
remains
uncharted.
We
previously
discovered
formation
wrinkled
structures
in
TPU
during
scCO2
foaming
presence
field,
underlying
mechanism
is
elusive.
In
this
work,
flow-induced
orientation
chains
subsequent
chain
relaxation
when
removed
are
systematically
investigated
with
nonequilibrium
simulations.
stretching
intensified
an
increasing
shear
rate
(Wi),
which
led
to
increases
internal
stress
kinetic
energy.
Although
reached
similar
conformations
under
various
Wi,
speed
higher
case
high
Wi.
process,
that
stretched
at
Wi
exhibited
faster
release
conformation
disordering,
caused
smaller
radius
gyration
(Rg)
level
compared
initial
coiled
state.
This
fast
behavior
believed
be
responsible
for
fine
dense
wrinkles
surface.
insight
from
our
simulations
reveals
wrinkle
meaningful
controlling
microstructure
TPUs.
Abstract
Metal‐free
organic
photocatalysts
for
photo‐mediated
reversible
deactivation
radical
polymerization
(photo‐RDRP)
are
witnessed
to
make
increasing
advancement
in
the
precise
synthesis
of
polymers.
However,
challenges
still
exist
development
high‐efficiency
and
environmentally
sustainable
carbon
dots
(CDs)‐based
organocatalysts.
Herein,
N‐doped
CDs
derived
from
phenanthroline
derivative
(Aphen)
prepared
as
metal‐free
photoinduced
electron
transfer
addition‐fragmentation
chain
(PET‐RAFT)
polymerization.
The
introduction
structure
enhances
excited
state
lifetime
expands
conjugated
length
their
internal
enable
light‐absorption
reach
green
light
region,
thereby
enhancing
photocatalytic
activity.
as‐designed
exhibit
unprecedented
capacity
photopolymerization
even
large‐volume
reaction
(100
mL)
with
high
monomer
conversion
narrow
polymer
dispersity
(
M
w
/
n
<
1.20)
under
light.
system
is
compatible
PET‐RAFT
numerous
monomers
production
molecular
weight
polyacrylate
>250
000)
exquisite
spatiotemporal
control.
Above
results
confirm
potential
photocatalyst,
which
has
not
been
achieved
other
catalysts
used
photo‐RDRP.
In
addition,
construction
fluorescent
nanoparticles
using
both
photocatalyst
phosphor
through
photoinitiated
polymerization‐induced
self‐assembly
(Photo‐PISA)
technology
successfully
demonstrated
first
time.
Abstract
Mechanochemistry
constitutes
a
burgeoning
field
that
investigates
the
chemical
and
physicochemical
alterations
of
substances
under
mechanical
force.
It
enables
synthesis
materials
which
is
challenging
to
obtain
via
thermal,
optical
or
electrical
activation
methods.
In
addition,
it
diminishes
reliance
on
organic
solvents
provides
novel
route
for
green
chemistry.
Today,
as
distinct
branch
alongside
electrochemistry,
photochemistry,
thermochemistry,
mechanochemistry
has
emerged
frontier
research
domain
within
chemistry
material
science.
recent
years,
intersection
with
controlled
radical
polymerization
witnessed
rapid
advancements,
providing
new
routes
polymer
Significantly,
we
have
experienced
breakthroughs
in
methods
relying
sonochemistry,
piezoelectricity
contact
electrification.
These
methodologies
not
only
facilitate
polymers
high
molecular
weight
but
also
enable
precise
control
over
chain
length
structure.
Transitioning
from
harsh
mild
conditions
mechanochemical
facilitated
significant
improvement
controllability
polymerization.
From
this
perspective,
introduce
progress
aim
clarify
historcial
development
topic.
Polymer Chemistry,
Год журнала:
2024,
Номер
15(20), С. 2011 - 2027
Опубликована: Янв. 1, 2024
In
this
review,
various
strategies
of
enzyme-catalysed
RAFT
polymerization
are
discussed
for
the
synthesis
sustainable
and
precision
polymers
via
green
polymer
chemistry.
