ABSTRACT
Wearable
devices
possess
excellent
flexibility
and
can
conform
to
irregular
surfaces,
extensively
changing
human
healthcare
fields.
Ultrasonic
technology,
with
its
extensive
penetration
depth,
nondestructive
nature,
versatile
functionalities,
has
been
widely
applied
in
the
diagnosis
treatment
of
various
diseases.
However,
traditional
ultrasound
are
often
bulky
rigid,
significantly
limiting
their
further
development
biomedical
field.
flexible
combine
advantages
wearable
electronics
providing
real‐time,
continuous,
strategies
for
applications.
seamlessly
skin
or
organ
substantially
enhancing
working
performance,
durability,
comfort.
Here,
we
review
recent
advancements
developing
applications,
including
materials,
structural
design,
applications
We
provide
an
overview
utilized
hemodynamics
monitoring,
deep‐tissue
energy
transmission,
closed‐loop
therapy.
Finally,
discuss
existing
challenges
future
trends
devices.
Advanced Science,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 26, 2024
Abstract
With
the
integration
of
bioelectronics
and
materials
science,
implantable
self‐powered
systems
for
electrical
stimulation
medical
devices
have
emerged
as
an
innovative
therapeutic
approach,
garnering
significant
attention
in
research.
These
achieve
self‐powering
through
integrated
energy
conversion
modules,
such
triboelectric
nanogenerators
(TENGs)
piezoelectric
(PENGs),
significantly
enhancing
portability
long‐term
efficacy
equipment.
This
review
delves
into
design
strategies
clinical
applications
systems,
encompassing
optimization
harvesting
selection
fabrication
adaptable
electrode
materials,
innovations
systematic
strategies,
extensive
utilization
biological
therapies,
including
treatment
neurological
disorders,
tissue
regeneration
engineering,
drug
delivery,
tumor
therapy.
Through
a
comprehensive
analysis
latest
research
progress,
technical
challenges,
future
directions
these
areas,
this
paper
aims
to
provide
valuable
insights
inspiration
further
systems.
Science Advances,
Journal Year:
2025,
Volume and Issue:
11(8)
Published: Feb. 19, 2025
Implantable
medical
devices
(IMDs)
provide
effective
solutions
for
diverse
health
care
applications.
Electrical
circuits
are
crucial
implantable
due
to
the
requirement
of
intended
functions,
such
as
communication
with
external
devices.
Circuits
have
several
risks,
biocompatibility
issues,
power
limitations,
or
size
constraints.
In
this
work,
we
propose
a
passive
modulated
ultrasound
(PMU)
principle
IMDs
and
develop
circuit-free
ultrasonic
system
(CUS)
thoracic
pressure
monitoring.
The
PMU
can
passively
modulate
monitored
physiological
signals
into
pulses
without
using
electrical
supply.
developed
CUS
is
only
2.5
millimeters
in
radius
850
micrometers
height.
Animal
experiments
demonstrated
that
CUS,
high
sensitivity
(−22.96
millivolts
per
kilopascal),
monitor
assist
diagnosing
different
heart
diseases,
including
cardiac
arrest
myocardial
infarction.
provides
human-friendly
wireless
sensing
strategy
IMDs,
which
promotes
advancements
applications
within
human
body.
Nano-Micro Letters,
Journal Year:
2025,
Volume and Issue:
17(1)
Published: March 12, 2025
Abstract
Many
natural
organisms
have
evolved
unique
sensory
systems
over
millions
of
years
that
allowed
them
to
detect
various
changes
in
their
surrounding
environments.
Sensory
feature
numerous
receptors—such
as
photoreceptors,
mechanoreceptors,
and
chemoreceptors—that
types
external
stimuli,
including
light,
pressure,
vibration,
sound,
chemical
substances.
These
stimuli
are
converted
into
electrochemical
signals,
which
transmitted
the
brain
produce
sensations
sight,
touch,
hearing,
taste,
smell.
Inspired
by
biological
principles
systems,
recent
advancements
electronics
led
a
wide
range
applications
artificial
sensors.
In
current
review,
we
highlight
developments
sensors
inspired
utilizing
soft
ionic
materials.
The
versatile
characteristics
these
materials
introduced
while
focusing
on
mechanical
electrical
properties.
features
working
sensing
investigated
terms
six
categories:
vision,
tactile,
gustatory,
olfactory,
proximity
sensing.
Lastly,
explore
several
challenges
must
be
overcome
outlining
future
research
directions
field
ABSTRACT
Wearable
devices
possess
excellent
flexibility
and
can
conform
to
irregular
surfaces,
extensively
changing
human
healthcare
fields.
Ultrasonic
technology,
with
its
extensive
penetration
depth,
nondestructive
nature,
versatile
functionalities,
has
been
widely
applied
in
the
diagnosis
treatment
of
various
diseases.
However,
traditional
ultrasound
are
often
bulky
rigid,
significantly
limiting
their
further
development
biomedical
field.
flexible
combine
advantages
wearable
electronics
providing
real‐time,
continuous,
strategies
for
applications.
seamlessly
skin
or
organ
substantially
enhancing
working
performance,
durability,
comfort.
Here,
we
review
recent
advancements
developing
applications,
including
materials,
structural
design,
applications
We
provide
an
overview
utilized
hemodynamics
monitoring,
deep‐tissue
energy
transmission,
closed‐loop
therapy.
Finally,
discuss
existing
challenges
future
trends
devices.
