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.
Advanced Materials,
Год журнала:
2023,
Номер
35(49)
Опубликована: Авг. 11, 2023
Ultrasonic
field
(USF)
is
widely
used
to
regulate
the
intrinsic
properties
of
materials
that
are
not
applied
in
electromagnetic
wave
(EMW)
absorption.
One
reason
lack
a
response
mechanism
for
USF
hinders
expansion
their
EMW
absorption
performance.
Therefore,
address
this
issue,
series
CuS
nanoparticles
with
diverse
anions
constructed
presence
or
absence
USF.
The
ultrasonic-induced
cavitation
effect
can
significantly
promote
crystallization
and
lead
accumulation
S
defects
at
grain
boundaries
(GBs).
Furthermore,
GBs
easily
oriented
arranged,
allowing
polarization
relaxation
retention
be
maintained
10
wt%.
Consequently,
nitrate
precursor
under
shows
an
optimum
effective
bandwidth
(EAB)
10.24
GHz
thickness
3.5
mm,
which
228.6%
more
than
without
chloride
also
achieves
EAB
3.92
GHz,
even
considerably
low
filler
ratio.
Thus,
study
demonstrates
first
time
provides
novel
technique
optimize
performance
semiconductors.
Polymers,
Год журнала:
2024,
Номер
16(14), С. 1991 - 1991
Опубликована: Июль 11, 2024
Natural
hydrogels
based
on
renewable
and
inexpensive
sources,
such
as
starch,
represent
an
interesting
group
of
biopolymeric
materials
with
a
growing
range
applications
in
the
biomedical,
cosmeceutical,
food
sectors.
Starch-based
have
traditionally
been
produced
using
different
processes
chemical
or
physical
methods.
However,
long
processing
times,
high
energy
consumption,
safety
issues
related
to
synthesis
these
materials,
mostly
causing
severe
environmental
damage,
identified
main
limitations
for
their
further
exploitation.
Therefore,
scientific
challenge
research
groups
is
development
reliable
sustainable
methods
reduce
footprint,
well
investigating
new
low-cost
sources
starches
individuating
appropriate
formulations
produce
stable
hydrogel-based
products.
In
last
decade,
possibility
physically
modifying
natural
polysaccharides,
starches,
green
has
nonthermal
technologies
including
high-pressure
(HPP).
It
demonstrated
that
latter
exerts
important
role
improving
physicochemical
techno-functional
properties
starches.
surveys
literature,
activities
devoted
understanding
effects
pre-treatments
via
(HPP)
starch
structural
modifications,
more
so
than
elucidating
its
capacity
rapid
formation
highly
structured
starch-based
promising
functionality
stability,
utilizing
eco-friendly
conditions.
present
review
addresses
recent
advancements
knowledge
production
HPP
innovative
clean-label
preparation
method.
Additionally,
this
manuscript
ambition
give
updated
overview
considering
types
structures
available,
are
proposed
critically
analyze
perspectives
technological
challenges
future
exploitation
novel
structures.
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 10, 2025
Abstract
Enhancing
the
efficacy
of
glioma
treatment
poses
a
significant
challenge.
Ferroelectric
nanomaterials,
renowned
for
their
remarkable
piezoelectric
properties,
generate
reactive
oxygen
species
(ROS)
when
exposed
to
external
stimuli
or
specific
environmental
conditions.
This
characteristic
positions
them
as
promising
platforms
highly
effective
cancer
therapies.
In
this
study,
two‐dimensional
(2D)
black
Bi
4
Ti
3
O
12
ferroelectric
perovskite
nanocatalysts
with
engineered
vacancies
are
designed
potent
sources
ROS
efficient
therapy.
The
band
bending
due
polarization
and
narrowed
bandgap
induced
by
vacancy
defects
effectively
enhance
carrier
separation,
suppress
recombination
rates,
markedly
increase
production.
Moreover,
mitochondrial
dysfunction
activation
mitogen‐activated
protein
kinase
(MAPK)
pathways
contribute
favorable
anti‐tumor
effects.
vitro
cellular‐level
assessments
in
vivo
antineoplastic
evaluations
unequivocally
demonstrate
enhanced
cytotoxicity
tumor
suppression
enabled
piezo‐catalytic
strategy.
research
underscores
role
defect
engineering
optimizing
effectiveness
semiconductors
catalytically
inducing
apoptosis
cells.
Angewandte Chemie International Edition,
Год журнала:
2023,
Номер
62(37)
Опубликована: Июль 29, 2023
Traditional
mechanochemically
controlled
reversible-deactivation
radical
polymerization
(RDRP)
utilizes
ultrasound
or
ball
milling
to
regenerate
activators,
which
induce
side
reactions
because
of
the
high-energy
and
high-frequency
stimuli.
Here,
we
propose
a
facile
approach
for
tribochemically
atom
transfer
(tribo-ATRP)
that
relies
on
contact-electro-catalysis
(CEC)
between
titanium
oxide
(TiO2
)
particles
CuBr2
/tris(2-pyridylmethylamine
(TPMA),
without
any
input.
Under
friction
induced
by
stirring,
TiO2
are
electrified,
continuously
reducing
/TPMA
into
CuBr/TPMA,
thereby
conversing
alkyl
halides
active
radicals
start
ATRP.
In
addition,
effect
reaction
was
elucidated
theoretical
simulation.
The
results
indicated
increasing
frequency
could
reduce
energy
barrier
electron
from
/TPMA.
this
study,
design
tribo-ATRP
successfully
achieved,
enabling
CEC
(ca.
10
Hz)
access
variety
polymers
with
predetermined
molecular
weights,
low
dispersity,
high
chain-end
fidelity.
