Small,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 25, 2024
High-fidelity
wireless
electrophysiological
monitoring
is
essential
for
ambulatory
healthcare
applications.
Soft
solid-like
hydrogels
have
received
significant
attention
as
epidermal
electrodes
because
of
their
tissue-like
mechanical
properties
and
high
biocompatibility.
However,
it
challenging
to
develop
a
hydrogel
electrode
that
provides
robust
contact
adhesiveness
with
glabrous
skin
hairy
scalp
high-fidelity,
continuous
signal
detection.
Here,
paintable,
fast
gelation,
highly
adhesive,
conductive
engineered
high-fidelity
monitoring.
The
hydrogel,
consisting
gelatin,
gallic
acid,
sodium
citrate,
lithium
chloride,
glycerol,
Tris-HCl
buffer
solution
exhibits
reversible
thermal
phase
transition
capability,
which
endows
the
attributes
on-skin
applicability
in
situ
gelation
15
s,
thereby
addressing
aforementioned
limitations.
introduction
acid
enhances
adhesive
facilitating
secure
attachment
or
scalp.
To
accentuate
potential
applications
at-home
health
monitoring,
are
demonstrated
electrocardiogram
recording
one
hour
during
various
daily
activities,
well
simultaneous
electroencephalogram
30
min
nap.
Cell Reports Physical Science,
Journal Year:
2024,
Volume and Issue:
5(7), P. 102097 - 102097
Published: July 1, 2024
The
rapid
development
of
intelligent
devices
imposes
new
demands
on
electromagnetic
wave
(EMW)-absorbing
materials,
especially
concerning
wide-spectrum
absorption,
frequency
band
manipulation,
and
multifunctional
integration.
However,
conventional
investigations
EMW-absorbing
materials
face
several
challenges
that
collectively
limit
the
effectiveness
existing
amid
growing
demands,
including
ambiguous
(EM)
loss
mechanisms,
impedance
mismatches,
deficiencies
in
integrated
design.
This
review
elucidates
EM
delineates
key
bridge
mechanisms
linking
microscopic
macroscopic
factors,
proposes
dielectric
polarization
models
to
clarify
mechanisms.
Additionally,
it
delves
into
unique
advantages
core-shell
structures
porous
optimization.
Finally,
introduces
fabrication
approaches
integrate
detailing
design
strategies
exploring
potential
applications.
By
consolidating
these
cutting-edge
achievements,
this
aims
guide
scientific
advancement
materials.
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 21, 2025
Abstract
Wearable
sensor
has
attracted
a
broad
interesting
in
application
prospect
of
human‐machine
interaction
(HMI).
However,
most
sensors
are
assembled
the
shape
gloves
to
accurately
capture
complex
hand
motion
information,
thereby
seriously
blocking
complete
tasks.
Herein,
wearable
pressure
based
on
drum‐structured
triboelectric
nanogenerator
(DS‐TENG)
is
developed
subtle
signals
for
physiological
signal
detection,
information
encoding,
gesture
recognition,
and
wireless
real‐time
robot
control.
The
DS‐TENG
enables
limit
detection
down
3.9
Pa
pressure,
which
can
sensitively
human
micromotion
pulse,
throat
sounds,
wrist
muscles
contraction.
Especially,
combined
with
microprocessor
Morse
code,
worn
detect
single‐finger
translate
into
regular
voltage
signals,
employed
encode
26
letters
subsequently
decode
corresponding
letters.
Furthermore,
an
aid
machine
learning,
array
(2
×
2)
successfully
achieve
recognition
high
accuracy
92%
wirelessly
perform
Consequently,
encoding
control,
demonstrates
extreme
potential
field
HMI
artificial
intelligence.
Chemical Society Reviews,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
Since
their
discovery
over
a
decade
ago,
MXenes
have
transformed
the
field
of
"materials
for
healthcare",
stimulating
growing
interest
in
healthcare-related
applications.
These
developments
also
driven
significant
advancements
MXenes'
synthesis.
This
review
systematically
examines
synthesis
and
applications
sensing
biomedical
fields,
underscoring
pivotal
role
addressing
critical
challenges
modern
healthcare.
We
describe
experimental
by
combining
appropriate
laboratory
modules
with
mechanistic
principles
underlying
each
step.
In
addition,
we
provide
extensive
details
on
parameters,
considerations,
essential
instructions
successful
Various
healthcare
including
sensing,
imaging,
synergistic
therapies,
regenerative
medicine,
wearable
devices
been
explored.
further
highlight
emerging
trends
MXenes,
viz.,
as
nanovehicles
drug
delivery,
vectors
gene
therapy,
tools
immune
profiling.
By
identifying
important
parameters
that
define
utility
applications,
this
outlines
strategies
to
regulate
profile,
thereby
serving
valuable
guide
design
application-specific
properties.
The
final
section
integrates
research
theoretical
studies
comprehensive
understanding
field.
It
technologies,
such
artificial
intelligence
(AI)
machine
learning
(ML),
accelerating
material
discovery,
structure-property
optimization,
automation.
Complemented
detailed
supplementary
information
synthesis,
stability,
biocompatibility,
environmental
impact,
insights,
offers
profound
knowledge
base
diverse
family
2D
materials.
Finally,
compared
potential
other
materials
underscore
existing
prioritize
interdisciplinary
collaboration.
synthesizing
key
from
its
current
(especially
2018
onward),
provides
cohesive
assessment
MXene
foundations
prospects
sector.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: July 25, 2024
Abstract
Traditional
hydrogels
often
face
issues
like
dehydration,
excessive
swelling,
and
poor
adhesion,
limiting
their
practical
applications.
This
study
presents
a
facile
universal
method
to
create
elastomer‐encapsulated
with
improved
water
retention,
non‐swelling,
enhanced
adhesion.
n‐Butyl
acrylate
(BA)
2,2,3,4,4,4‐hexafluorobutyl
methacrylate
(HFBMA)
are
utilized
as
the
“soft”
“hard”
monomers,
respectively,
in
situ
construct
elastomer
coatings
on
hydrogel
surface
through
surface‐confined
copolymerization.
The
resulting
transparent,
hydrophobic,
adhesive
coating
is
tightly
bound
surface,
conferring
upon
it
robust
defense
against
dehydration
swelling
various
media,
strong
adhesion
diverse
substrates
both
aerial
submerged
conditions.
Furthermore,
this
encapsulation
strategy
also
augments
mechanical
attributes
of
bulk
hydrogel,
including
its
tensile
properties
puncture
resistance,
applicable
wide
array
types
configurations.
Additionally,
applied
conductive
results
flexible
sensors
high
sensitivity,
reversible
resistance
change,
exceptional
sensing
stability,
significantly
durability
air
underwater
environments.
These
suggest
potential
applications
harsh
environments,
such
acoustic
detection
sonar
scanning
camouflage
for
submarines.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 26, 2024
Abstract
Wearable
strain
sensors,
capable
of
continuously
detecting
human
movements,
hold
great
application
prospects
in
sign
language
gesture
recognition
to
alleviate
the
daily
communication
barriers
deaf
and
mute
community.
However,
unsatisfactory
sensing
performance
(such
as
low
sensitivity,
narrow
detection
range,
etc.)
wearing
discomfort
severely
hinder
their
practical
application.
Here,
high‐performance
breathable
hydrogel
sensors
are
proposed
by
introducing
an
adjustable
localized
crack
a
closed‐loop
connected
fiber
encapsulated
porous
elastomer
films.
Upon
loading/unloading
external
strain,
dynamic
opening/closing
pre‐cut
causes
rapid
switching
conductive
path,
resulting
sharp
changes
resistance
high
sensitivity.
Consequently,
hydrogel‐based
crack‐effect
sensor
exhibits
superb
sensitivity
(GF
up
3930),
broad
range
(from
0.02%
80%),
fast
response/recovery
time
(78/52
ms),
repeatability,
structural
stability.
Based
on
capability
accurately
detect
various
strains
across
full
wireless
system
is
developed
achieve
accuracy
98.1%
encoding
decoding
gestures
with
assistance
machine
learning,
providing
robust
platform
for
efficient
intelligibility
barrier‐free
communication.
Small,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 2, 2025
Smart
hydrogel
sensors
with
intrinsic
responsiveness,
such
as
pH,
temperature,
humidity,
and
other
external
stimuli,
possess
broad
applications
in
innumerable
fields
biomedical
diagnosis,
environmental
monitoring,
wearable
electronics.
However,
it
remains
a
great
challenge
to
develop
structural
hydrogels
that
simultaneously
body
temperature-responsive,
adhesion-adaptable,
transparency-tunable.
Herein,
an
innovative
skin-mountable
thermo-responsive
is
fabricated,
which
endows
tunable
optical
properties
switchable
adhesion
at
different
temperatures.
Interestingly,
able
exhibit
lower
critical
solution
temperature
(LCST)
adapt
the
human
by
altering
acrylic
acid(AAc)
content
network.
The
also
displays
high
transparency
strong
low
temperatures,
while
becomes
opaque
feeble
Furthermore,
highly
sensitive
sensor
array
structure
constructed
harnessing
vat
photopolymerization
three-dimensional
(3D)
printing.
As
proof
of
concept,
attached
back
hand
capable
detecting
strain
differences,
integrating
high-temperature
monitoring
alarm
functions
visual
alteration.
This
work
provides
advanced
manner
fabricate
structured
responsive
hydrogels,
have
potential
application
prospects
field
smart
medical
patches
devices.
