Macromolecular Rapid Communications,
Journal Year:
2024,
Volume and Issue:
45(6)
Published: Jan. 18, 2024
Abstract
Piezoelectric
nanogenerator
(PENG)
produces
stable
electrical
signals
in
response
to
external
mechanical
stimuli
and
holds
promise
the
fields
of
flexible
sensors
smart
wearable
devices.
In
practice,
a
high‐performance
PENG
with
straightforward
structure
exceptional
reliability
is
deeply
desired.
This
study
optimally
synthesizes
piezoelectric
composites
comprising
polyvinylidene
fluoride
(PVDF)
incorporated
barium
titanate
(BTO)
nanoparticles
(NPs)
fabricated
heightened
sensitivity
by
using
electrospinning
technique.
The
polar
β‐phase
content
dual‐optimized
BTO‐PVDF
(barium
fluoride)
electrospun
fiber
reaches
up
82.39%.
bending
mode,
it
achieves
remarkable
maximum
open‐circuit
voltage
19.152
V,
transferred
charge
8.058
nC,
an
output
per
unit
area
2.128
V
cm
−
2
.
Under
vertical
pressure
conditions,
BP‐PENG
exhibits
impressive
12.361
while
force
2.156
N,
demonstrating
notable
sensing
5.159
kPa
−1
,
excellent
linear
relationship.
Furthermore,
displays
sensitive
features
monitoring
hand
movements.
high
performance
make
promising
for
applications
human
motion
Chemical Reviews,
Journal Year:
2024,
Volume and Issue:
124(2), P. 455 - 553
Published: Jan. 4, 2024
In
the
era
of
Internet-of-things,
many
things
can
stay
connected;
however,
biological
systems,
including
those
necessary
for
human
health,
remain
unable
to
connected
global
Internet
due
lack
soft
conformal
biosensors.
The
fundamental
challenge
lies
in
fact
that
electronics
and
biology
are
distinct
incompatible,
as
they
based
on
different
materials
via
functioning
principles.
particular,
body
is
curvilinear,
yet
typically
rigid
planar.
Recent
advances
design
have
generated
tremendous
opportunities
wearable
bioelectronics,
which
may
bridge
gap,
enabling
ultimate
dream
healthcare
anyone,
anytime,
anywhere.
We
begin
with
a
review
historical
development
healthcare,
indicating
significant
trend
healthcare.
This
followed
by
focal
point
discussion
about
new
design,
particularly
low-dimensional
nanomaterials.
summarize
material
types
their
attributes
designing
bioelectronic
sensors;
we
also
cover
synthesis
fabrication
methods,
top-down,
bottom-up,
combined
approaches.
Next,
discuss
energy
challenges
progress
made
date.
addition
front-end
devices,
describe
back-end
machine
learning
algorithms,
artificial
intelligence,
telecommunication,
software.
Afterward,
integration
systems
been
applied
various
testbeds
real-world
settings,
laboratories
preclinical
clinical
environments.
Finally,
narrate
remaining
conjunction
our
perspectives.
Advanced Functional Materials,
Journal Year:
2023,
Volume and Issue:
33(38)
Published: May 28, 2023
Abstract
Poly(vinylidene
fluoride)
(PVDF)‐based
polymers
demonstrate
great
potential
for
applications
in
flexible
and
wearable
electronics
but
show
low
piezoelectric
coefficients
(e.g.,
−
d
33
<
30
pC
N
−1
).
The
effective
improvement
the
piezoelectricity
of
PVDF
is
achieved
by
manipulating
its
semicrystalline
structures.
However,
there
still
a
debate
about
which
component
primary
contributor
to
piezoelectricity.
Therefore,
current
methods
improve
can
be
classified
into
modulations
amorphous
phase,
crystalline
region,
crystalline–amorphous
interface.
Here,
basic
principles
measurements
soft
are
first
discussed.
Then,
three
different
categories
structural
reviewed.
In
each
category,
physical
understanding
strategies
performance
particular,
crucial
role
oriented
fraction
at
interface
determining
emphasized.
At
last,
future
development
high
outlooked.
Small,
Journal Year:
2023,
Volume and Issue:
19(25)
Published: March 16, 2023
The
ocean
holds
vast
potential
as
a
renewable
energy
source,
but
harnessing
its
power
has
been
challenging
due
to
low-frequency
and
high-amplitude
stimulation.
However,
hybrid
nanogenerators
(HNGs)
offer
promising
solution
convert
into
usable
efficiently.
With
their
high
sensitivity
flexible
design,
HNGs
are
ideal
for
environments
remote
regions.
Combining
triboelectric
(TENGs)
with
piezoelectric
(PENGs)
electromagnetic
(EMGs)
creates
unique
system
that
maximizes
harvesting.
Ultimately,
energy-harvesting
systems
sustainable
reliable
growing
needs.
This
study
provides
an
in-depth
review
of
the
latest
research
on
harvesting
by
systems,
focusing
self-powered
applications.
article
also
discusses
primary
designs
devices,
powering
units
such
wireless
communication
climate
monitoring
buoys
is
enormous,
rapid
advancements
in
fabrication,
these
poised
revolutionize
It
outlines
pros
cons
highlights
major
challenges
must
be
overcome.
Finally,
future
outlooks
harvesters
discussed.
Alexandria Engineering Journal,
Journal Year:
2023,
Volume and Issue:
68, P. 587 - 609
Published: Feb. 2, 2023
Self-cleaning
surfaces
are
nature-inspired
and
based
on
the
surface
processes
occurring
butterfly
wings
lotus
leaves.
Owing
to
their
unique
characteristics,
they
usable
in
a
number
of
industrial
applications,
including
manufacture
solar
panels
glass.
In
particular,
can
be
used
for
separation
oil
water,
which
is
highly
relevant
petroleum
technologies.
help
reduce
time
cost
keeping
equipment
clean
while
enhancing
its
durability,
broadly
categorized
into
hydrophilic
hydrophobic
surfaces.
On
surfaces,
water
spreads
considerably
(sheeting
water),
therefore,
it
transport
contaminants
leave
surface.
However,
cleaned
by
slipping
droplets
it.
Currently,
water-repellent
more
widely
self-cleaning
The
selection
design
such
require
thorough
understanding
underlying
physical
chemistry
process.
This
paper
presents
an
in-depth
discussion
with
emphasis
applications
industry.
Chemical Society Reviews,
Journal Year:
2023,
Volume and Issue:
52(17), P. 6191 - 6220
Published: Jan. 1, 2023
This
review
highlights
the
recent
progress
in
piezoelectric
gels
(also
known
as
PiezoGels)
comprised
of
polymers,
ceramic
oxides
and
supramolecular
materials
used
for
energy
harvesting,
sensing
wound
dressing.
Cyborg and Bionic Systems,
Journal Year:
2023,
Volume and Issue:
4
Published: Jan. 1, 2023
Biomachine
hybrid
robots
have
been
proposed
for
important
scenarios,
such
as
wilderness
rescue,
ecological
monitoring,
and
hazardous
area
surveying.
The
energy
supply
unit
used
to
power
the
control
backpack
carried
by
these
determines
their
future
development
practical
application.
Current
devices
backpacks
are
mainly
chemical
batteries.
To
achieve
self-powered
devices,
researchers
developed
solar
energy,
bioenergy,
biothermal
biovibration
harvesters.
This
review
provides
an
overview
of
research
in
batteries
biomachine
robots.
Various
different
biocarriers
entry
points
design
outlined
detail.
Finally,
challenges
possible
directions
is
provided.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(27)
Published: March 7, 2024
Abstract
Advancements
in
wearable
electronics
and
Internet
of
Things
(IoT)
sensors
have
catalyzed
the
need
for
effective
micro‐energy
harvesting.
Piezoelectric
nanogenerators
(PENGs)
are
ideal
due
to
their
high
conversion
efficiency
durability.
However,
contrast
between
piezoelectric
coefficients
brittle
inorganic
ceramics
lower
superior
flexibility
biocompatibility
organic
polymers
poses
a
significant
challenge.
This
work
introduces
novel
multilayer
composite
PENG,
integrating
single‐crystal
BaTiO
3
(BTO)
film
poly(vinylidene
fluoride‐co‐trifluoroethylene)
(PVDF‐TrFE)
layers.
The
PVDF‐TrFE/BTO/PVDF‐TrFE
PENGs
demonstrate
substantially
improved
energy
harvesting
performance,
with
outputs
reaching
up
15.1
V,
2.39
µA,
power
density
17.33
µW
cm
−2
during
bending
deformation.
represents
increase
compared
pure
PVDF‐TrFE
nanoparticle
BTO‐doped
PENGs.
Durability
tests
show
consistent
stable
∼15.0
V
output
across
2000
cycles.
Additionally,
when
attached
human
body,
these
efficiently
convert
body
motions
into
electrical
responses.
demonstrates
enhancement
performance
using
sandwich‐structured
freestanding
BTO
films,
showing
its
potential
address
requirements
flexible
electronic
devices.
