Abstract
Wearable
strain
sensors
have
attracted
research
interest
owing
to
their
potential
within
digital
healthcare,
offering
smarter
tracking,
efficient
diagnostics,
and
lower
costs.
Unlike
rigid
sensors,
fiber‐based
ones
compete
with
flexibility,
durability,
adaptability
body
structures
as
well
eco‐friendliness
environment.
Here,
the
sustainable
wearable
for
health
are
reviewed,
material,
fabrication,
practical
healthcare
aspects
explored.
Typical
predicated
on
various
sensing
modalities,
be
it
resistive,
capacitive,
piezoelectric,
or
triboelectric,
explained
analyzed
according
strengths
weaknesses
toward
fabrication
applications.
The
applications
in
spanning
from
area
networks,
intelligent
management,
medical
rehabilitation
multifunctional
systems
also
evaluated.
Moreover,
create
a
more
complete
network,
wired
wireless
methods
of
data
collection
examples
machine
learning
elaborated
detail.
Finally,
prevailing
challenges
prospective
insights
into
advancement
novel
fibers,
enhancement
precision
wearability,
establishment
seamlessly
integrated
critically
summarized
offered.
This
endeavor
not
only
encapsulates
present
landscape
but
lays
foundation
future
breakthroughs
sensor
technology
domain
health.
Advanced Materials,
Год журнала:
2024,
Номер
36(52)
Опубликована: Март 22, 2024
Abstract
Triboelectric
nanogenerator
(TENG)
manifests
distinct
advantages
such
as
multiple
structural
selectivity,
diverse
selection
of
materials,
environmental
adaptability,
low
cost,
and
remarkable
conversion
efficiency,
which
becomes
a
promising
technology
for
micro‐nano
energy
harvesting
self‐powered
sensing.
Tribo‐dielectric
materials
are
the
fundamental
core
components
high‐performance
TENGs.
In
particular,
charge
generation,
dissipation,
storage,
migration
dielectrics,
dynamic
equilibrium
behaviors
determine
overall
performance.
Herein,
comprehensive
summary
is
presented
to
elucidate
dielectric
transport
mechanism
tribo‐dielectric
material
modification
principle
toward
The
contact
electrification
started
first,
followed
by
introducing
basic
Subsequently,
mechanisms
strategies
highlighted
regarding
physical/chemical,
surface/bulk,
coupling,
structure
optimization.
Furthermore,
representative
applications
based
TENGs
power
sources,
sensors
demonstrated.
existing
challenges
potential
opportunities
advanced
outlined,
guiding
design,
fabrication,
materials.
Advanced Functional Materials,
Год журнала:
2024,
Номер
34(38)
Опубликована: Май 3, 2024
Abstract
Real‐time
monitoring
of
respiration
plays
a
very
important
role
in
human
health
assessment,
especially
and
analyzing
during
exercise
sleep.
However,
traditional
humidity
sensors
still
have
problems
flexibility,
sensitivity,
durability,
so
there
is
an
urgent
need
to
develop
with
high
stretchability,
environmental
resistance
as
respiratory
applications.
Here,
based
on
the
double
network
hydrogel
structure
polyvinyl
alcohol
polyacrylamide,
highly
sensitive,
stretchable,
environmentally
stable
organic
sensor
has
been
manufactured
by
using
synergistic
effect
lithium
chloride
MXene.
The
shows
rapid
response
range
40–85%
RH,
sensitivity
−103.4%/%
RH.
In
addition,
it
exhibits
more
than
3000%
mechanical
strain
excellent
resistance,
which
attributed
chemical
cross‐linking
multiple
hydroxyl
groups
glycerol
forming
rich
hydrogen
bonds
water
polymer
chains.
used
for
real‐time
breathing
sleep
processes.
This
work
provides
new
strategy
preparing
high‐performance,
extensibility,
stability
hydrogel‐based
monitoring.
npj Flexible Electronics,
Год журнала:
2023,
Номер
7(1)
Опубликована: Март 11, 2023
Abstract
Paper-based
electronics
have
attracted
much
attention
due
to
their
softness,
degradability,
and
low
cost.
However,
paper-based
sensors
are
difficult
apply
high-humidity
environments
or
even
underwater.
Here,
we
report
a
fully
paper-integrated
piezoresistive
sensing
system
that
exhibits
flexibility,
waterproofing,
air
permeability,
biocompatibility.
This
consists
of
hydrophobic
paper
as
the
substrate
encapsulation
layer,
conductive
with
double
‘zig-zag’
dotted
surface
structure
silver
paste
films
interconnects.
The
structural
design
layer
helps
increase
contact
area
in
adjacent
layers
under
pressure
further
improves
sensitivity.
can
be
worn
on
human
skin
ambient
environment,
wet
water
for
real-time
monitoring
physiological
signals
permeability
waterproofing
its
fiber
structure.
Such
device
provides
reliable,
economical,
eco-friendly
solution
wearable
technologies.
ACS Nano,
Год журнала:
2024,
Номер
18(4), С. 2685 - 2707
Опубликована: Янв. 19, 2024
Optical
metasurfaces,
capable
of
manipulating
the
properties
light
with
a
thickness
at
subwavelength
scale,
have
been
subject
extensive
investigation
in
recent
decades.
This
research
has
mainly
driven
by
their
potential
to
overcome
limitations
traditional,
bulky
optical
devices.
However,
most
existing
metasurfaces
are
confined
planar
and
rigid
designs,
functions,
technologies,
which
greatly
impede
evolution
toward
practical
applications
that
often
involve
complex
surfaces.
The
disconnect
between
two-dimensional
(2D)
structures
three-dimensional
(3D)
curved
surfaces
is
becoming
increasingly
pronounced.
In
past
two
decades,
emergence
flexible
electronics
ushered
an
emerging
era
for
metasurfaces.
review
delves
into
this
cutting-edge
field,
focus
on
both
conformal
design
fabrication
techniques.
Initially,
we
reflect
milestones
trajectories
modern
complemented
brief
overview
theoretical
underpinnings
primary
classifications.
We
then
showcase
four
advanced
emphasizing
promising
prospects
relevance
areas
such
as
imaging,
biosensing,
cloaking,
multifunctionality.
Subsequently,
explore
three
key
trends
including
mechanically
reconfigurable
digitally
controlled
Finally,
summarize
our
insights
ongoing
challenges
opportunities
field.
Advanced Materials,
Год журнала:
2024,
Номер
36(26)
Опубликована: Март 28, 2024
Abstract
Over
the
past
few
decades,
significant
progress
in
piezo‐/triboelectric
nanogenerators
(PTEGs)
has
led
to
development
of
cutting‐edge
wearable
technologies.
Nanofibers
with
good
designability,
controllable
morphologies,
large
specific
areas,
and
unique
physicochemical
properties
provide
a
promising
platform
for
PTEGs
various
advanced
applications.
However,
further
nanofiber‐based
is
limited
by
technical
difficulties,
ranging
from
materials
design
device
integration.
Herein,
current
developments
based
on
electrospun
nanofibers
are
systematically
reviewed.
This
review
begins
mechanisms
advantages
nanodevices,
including
high
breathability,
waterproofness,
scalability,
thermal–moisture
comfort.
In
terms
structural
design,
novel
electroactive
structure
assemblies
1D
micro/nanostructures,
2D
bionic
structures,
3D
multilayered
structures
discussed.
Subsequently,
nanofibrous
applications
such
as
energy
harvesters,
personalized
medicine,
personal
protective
equipment,
human–machine
interactions
summarized.
Nanofiber‐based
still
face
many
challenges
efficiency,
material
durability,
stability,
Finally,
research
gap
between
practical
discussed,
emerging
trends
proposed,
providing
some
ideas
intelligent
wearables.
Communications Materials,
Год журнала:
2024,
Номер
5(1)
Опубликована: Март 20, 2024
Abstract
Within
the
breath
lie
numerous
health
indicators,
encompassing
respiratory
patterns
and
biomarkers
extending
beyond
conditions
to
cardiovascular
health.
Recently,
emergence
of
SARS-CoV-2
pandemic
has
not
only
underscored
necessity
on-the-spot
analysis
but
also
normalized
use
masks
in
everyday
life.
Simultaneously,
rapid
evolution
wearable
technology
given
rise
innovative
healthcare
monitoring
tools,
with
a
specific
emphasis
on
sensors.
This
review
explores
current
research
trends
utilizing
breathing
sensors
detect
diverse
monitor
parameters,
including
airflow,
temperature,
humidity.
Additionally,
it
applications,
ranging
from
recognizing
swiftly
detecting
diseases.
Integrating
Internet
Things
machine
learning
technologies
into
these
applications
highlights
their
potential
offer
personalized,
accurate,
efficient
solution.
