Materials Chemistry Frontiers,
Journal Year:
2024,
Volume and Issue:
9(2), P. 171 - 188
Published: Dec. 4, 2024
Piezoelectric
materials
can
harness
ambient
mechanical
energy
to
produce
an
electric
field
and
initiate
redox
reactions,
particularly,
the
production
of
reactive
oxygen
species
that
induce
oxidative
stress,
damage
cell
membranes,
cause
death.
Dalton Transactions,
Journal Year:
2024,
Volume and Issue:
53(15), P. 6690 - 6708
Published: Jan. 1, 2024
Overview
of
the
eradication
pathogenic
bacteria
using
few-layer
black
phosphorus
piezo
catalyst
under
mechanical
stimuli,
along
with
exploration
temperature
dependent
dielectric
properties.
Biomacromolecules,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 13, 2025
Chitosan
(CHT)
is
a
known
piezoelectric
biomacromolecule;
however,
its
usage
limited
due
to
rapid
degradation
in
an
aqueous
system.
Herein,
we
prepared
CHT
film
via
solvent
casting
method
and
cross-linked
alkaline
solution.
Sodium
hydroxide
facilitated
deprotonation,
leading
increased
intramolecular
hydrogen
bonding
mechanical
properties.
The
remained
intact
for
30
days
environments.
A
systematic
study
revealed
gradual
increase
the
output
voltage
from
0.9
1.8
V
under
external
force
(1-16
N).
In
addition,
showed
remarkable
antibacterial
anti-inflammatory
activities
ultrasound
stimulation
inhibition
of
inflammatory
cytokines.
films
also
displayed
enhanced
cellular
proliferation
∼5-fold
faster
migration
NIH3T3
cells
US
stimulation.
Overall,
this
work
presents
robust,
biocompatible,
wearable
device
that
can
transform
biomechanical
energy
into
electrical
pulses
modulation
cell
fate
processes
other
bioactivities.
ACS Applied Nano Materials,
Journal Year:
2024,
Volume and Issue:
7(22), P. 26248 - 26266
Published: Nov. 6, 2024
Herein,
we
first
report
an
eco-friendly
and
easily
retrievable
piezo-responsive
membrane
fabricated
by
encapsulating
chemically
synthesized
cobalt
chromate
quantum
dots
(CCOQDs)
at
varying
concentrations
(0%,
10%,
20%)
in
poly(vinylidene
fluoride)
(PVDF)
using
a
facile
solution-casting
method.
The
with
10%
CCOQDs
(PCCO
10)
exhibited
high
β-phase
fraction
(75.93%),
significant
dielectric
constant
(56.22)
notable
piezo-coefficient
(d33=
65.1
pC/N),
demonstrating
strong
piezocatalytic
activity.
It
effectively
generated
reactive
oxygen
species
(ROS),
which
reacted
dye
solutions,
leading
to
98.7%
congo
red
(CR),
89.9%
methylene
blue
(MB),
87%
mixed
(1:1
of
CR
MB)
degradation
within
50
min
soft
ultrasonic
stimulation,
primarily
due
•OH
radicals,
as
confirmed
scavenger
trapping
experiments.
Additionally,
the
removed
81.98%
total
organic
carbon
(TOC)
75
min.
Optimization
alkaline
pH
solution,
60
W
power,
1
ppm
concentration
enhanced
its
catalytic
efficiency,
selectivity,
stability.
Real-world
testing
on
drinking
wastewater
showed
efficiencies
94.65%
98.31%,
highlighting
versatility
for
industrial
household
applications.
flexible
PCCO
10
also
demonstrated
excellent
reusability
(97.2%
efficiency
after
four
cycles)
maintained
structural
integrity
under
low-frequency
such
centrifugation,
vortexing,
stirring,
confirming
activity
degradation.
Furthermore,
products
were
identified
LC-MS
technique.
Also,
pot
study
established
that
these
molecules
have
no
phytotoxic
effects
neem
(Azadirachta
indica)
plants.
Hence,
this
multifunctional
free-standing
holds
promising
potential
alternative
sustainable
treatment.