Nano-Micro Letters,
Journal Year:
2024,
Volume and Issue:
16(1)
Published: Sept. 3, 2024
Abstract
The
new-generation
electronic
components
require
a
balance
between
electromagnetic
interference
shielding
efficiency
and
open
structure
factors
such
as
ventilation
heat
dissipation.
In
addition,
realizing
the
tunable
of
porous
shields
over
wide
range
wavelengths
is
even
more
challenging.
this
study,
well-prepared
thermoplastic
polyurethane/carbon
nanotubes
composites
were
used
to
fabricate
novel
periodic
flexible
metamaterials
using
fused
deposition
modeling
3D
printing.
Particularly,
investigation
focuses
on
optimization
pore
geometry,
size,
dislocation
configuration
material
thickness,
thus
establishing
clear
correlation
structural
parameters
property.
Both
experimental
simulation
results
have
validated
superior
performance
hexagon
derived
honeycomb
other
designs,
proposed
failure
size
(
D
f
≈
λ
/8
−
/5)
critical
inclined
angle
θ
≈43°
48°),
which
could
be
new
benchmarks
for
shielding.
proper
regulation
thickness
remarkably
enhance
maximum
capability
(85
95
dB)
absorption
coefficient
A
(over
0.83).
final
innovative
design
box
also
exhibits
good
effectiveness
across
broad
frequency
2.4
GHz),
opening
up
pathways
individualized
diversified
solutions.
Advanced Materials,
Journal Year:
2023,
Volume and Issue:
36(14)
Published: Dec. 26, 2023
Abstract
Transition
metal
carbides/nitrides
(MXenes)
demonstrate
a
massive
potential
in
constructing
lightweight,
multifunctional
wearable
electromagnetic
interference
(EMI)
shields
for
application
various
fields.
Nevertheless,
it
remains
challenging
to
develop
facile,
scalable
approach
prepare
the
MXene‐based
macrostructures
characterized
by
low
density,
thickness,
high
mechanical
flexibility,
and
EMI
SE
at
same
time.
Herein,
ultrathin
MXene/reduced
graphene
oxide
(rGO)/Ag
foams
with
porifera‐inspired
hierarchically
porous
microstructure
are
prepared
combining
Zn
2+
diffusion
induction
hard
template
methods.
The
hierarchical
porosity,
which
includes
mesoporous
skeleton
microporous
MXene
network
within
skeleton,
not
only
exerts
regulatory
effect
on
stress
distribution
during
compression,
making
rubber‐like
resistant
wrinkling
but
also
provides
more
channels
multiple
reflections
of
waves.
Due
interaction
between
Ag
nanosheets,
MXene/rGO,
structure,
is
possible
produce
an
outstanding
shielding
performance
specific
surface
effectiveness
reaching
109152.4
dB
cm
2
g
−1
.
Furthermore,
exhibit
multifunctionalities,
such
as
transverse
Joule
heating,
longitudinal
heat
insulation,
self‐cleaning,
fire
resistance,
motion
detection.
These
discoveries
open
up
novel
pathway
development
lightweight
materials
considerable
anti‐interference
devices.
Advanced Functional Materials,
Journal Year:
2023,
Volume and Issue:
33(50)
Published: Aug. 6, 2023
Abstract
MXene
and
graphene
cryogels
have
demonstrated
excellent
electromagnetic
interference
(EMI)
shielding
effectiveness
due
to
their
exceptional
electrical
conductivity,
low
density,
ability
dissipate
waves
through
numerous
internal
interfaces.
However,
synthesis
demands
costly
reduction
techniques
and/or
pre‐processing
methods
such
as
freeze‐casting
achieve
high
EMI
mechanical
performance.
Furthermore,
limited
research
has
been
conducted
on
optimizing
the
cryogel
microstructures
porosity
enhance
while
reducing
materials
consumption.
Herein,
a
novel
approach
produce
ultra‐lightweight
composed
of
Ti
3
C
2
T
x
/graphene
oxide
(GO)
displaying
multiscale
is
presented
enable
high‐performance
shielding.
This
method
uses
controllable
templating
interfacial
assembly
filamentous‐structured
liquids
that
are
readily
converted
into
cryogels.
The
obtained
ultra‐flyweight
(3–7
mg
cm
−3
)
exhibit
outstanding
specific
(33
000–50
000
dB
g
−1
eliminating
need
for
chemical
or
thermal
reduction.
achieved
when
/GO
used
backbone
conductive
epoxy
nanocomposites,
yielding
31.7–51.4
at
filler
loading
(0.3–0.7
wt%).
Overall,
one‐of‐a‐kind
system
introduced
processed
affording
scalability
ACS Nano,
Journal Year:
2024,
Volume and Issue:
18(4), P. 2906 - 2916
Published: Jan. 22, 2024
Hydrogels
are
emerging
as
stretchable
electromagnetic
interference
(EMI)
shielding
materials
because
of
their
tissue-like
mechanical
properties
and
water-rich
porous
cellular
structures.
However,
achieving
high-performance
hydrogel
shields
remains
a
challenge
enhancing
conductivity
often
results
in
compromise
deformation
adoptability.
This
work
proposes
treatment
strategy
involving
sulfuric
acid/titanium
carbide
MXene,
which
can
simultaneously
enhance
the
stretchability
poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate)
(PEDOT:PSS)/poly(vinyl
alcohol)
(PVA)
double-network
hydrogels.
Multiple
spectroscopic
characterizations
reveal
that
acid
promotes
linear
conformation
transition
PEDOT
molecular
chain,
while
MXene
increases
charge
delocalization
hydrogen
bond
cross-linking
sites.
The
hydrogels,
synthesized
with
combined
content
0.6
wt
%
PEDOT:PSS,
exhibit
an
average
X-band
EMI
SE
41
dB.
performance
is
sustained
at
94.5%,
even
following
stretching
release
strain
200%.
Interestingly,
found
to
linearly
increase,
reaching
value
99
dB
frequency
increased
26.5
GHz.
increase
attributed
enhanced
water
polarization
process,
supported
by
theoretical
calculations
impedance
attenuation
constant.
introduces
post-treatment
technique
optimizes
providing
deep
insights
into
mechanism
enabling
ultralow
conductive
filler
content.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(45)
Published: June 12, 2024
Abstract
Advanced
wireless
sensors,
incorporating
metal‐organic
frameworks
(MOFs),
enzymatic
systems,
and
nanocomposites,
offer
unparalleled
solutions
for
monitoring
analytes
human
physiological
signals.
These
cutting‐edge
when
used
with
external
devices,
enable
real‐time
of
physicochemical
processes
within
the
body,
thereby
enhancing
understanding
complex
biological
systems.
This
study
presents
advancements
in
sensor
development,
fabrication
techniques,
user‐friendly
protocols.
The
performance
these
sensors
is
evaluated
based
on
their
selectivity,
sensitivity,
detection
limits.
Moreover,
this
article
explores
limitations,
challenges,
key
strategies
to
enhance
analyte
recognition
from
onsite
environmental
species,
ensuring
point‐of‐care
safety.
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 21, 2024
Lignocellulose-mediated
liquid
metal
(LM)
composites,
as
emerging
functional
materials,
show
tremendous
potential
for
a
variety
of
applications.
The
abundant
hydroxyl,
carboxyl,
and
other
polar
groups
in
lignocellulose
facilitate
the
formation
strong
chemical
bonds
with
LM
surfaces,
enhancing
wettability
adhesion
improved
interface
compatibility.
Beyond
serving
supportive
matrix,
can
be
tailored
to
optimize
microstructure
adapting
them
diverse
This
review
comprehensively
summarizes
fundamental
principles
recent
advancements
lignocellulose-mediated
highlighting
advantages
composite
fabrication,
including
facile
synthesis,
versatile
interactions,
inherent
functionalities.
Key
modulation
strategies
LMs
innovative
synthesis
methods
functionalized
composites
are
discussed.
Furthermore,
roles
structure-performance
relationships
these
electromagnetic
shielding,
flexible
sensors,
energy
storage
devices
systematically
summarized.
Finally,
obstacles
prospective
pertaining
thoroughly
scrutinized
deliberated
upon.
is
expected
provide
basic
guidance
researchers
boost
popularity
applications
useful
references
design
state-of-the-art
LMs.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 2, 2024
Abstract
With
the
rapid
development
of
bioscience
and
technology,
wearable
electronic
devices
are
developing
toward
advanced
trends
such
as
flexibility,
convenience,
multifunctionality,
user‐friendliness.
Herein,
polystyrene‐block‐poly(ethylene‐co‐butylene)‐block‐polystyrene
(SEBS)
is
employed
for
assisting
strong
binding
silver
nanoparticles
(AgNPs)
with
polyimide
nanofiber
(PIF)
to
obtain
durable
PIAgS
conductive
membrane
antibacterial
hydrophobic
ability.
Owing
porous
fiber
skeleton
good
interface
adhesion,
AgNPs
can
be
homogeneously
anchored
onto
surface
construct
stable
perfect
3D
network
an
ultrahigh
conductivity
up
2102.7
S/m,
enabling
multifunctionality
resultant
superior
bioelectric
signal
(EMG/ECG)
sensing,
pressure
sensing
(S
=
1.45
kPa
−1
,
100
kPa)
deep
learning
assisted
gesture
recognition,
electromagnetic
interference
(EMI)
shielding
(18757.8
dB·cm
2
·g
),
electric
heating
(12.2
°C/V
)
performances.
Furthermore,
a
multifunctional
device,
antimicrobial
ability
breathability
ensure
its
sufficient
wearing
safety
comfort.
Importantly,
inherent
weathering
resistance
PINF
SEBS
also
endows
it
excellent
stability
broad
service
life.
Taken
together,
designed
possesses
great
application
potential
next‐generation
device
wide
applicability.
Micromachines,
Journal Year:
2024,
Volume and Issue:
15(2), P. 187 - 187
Published: Jan. 26, 2024
The
interaction
between
matter
and
microwaves
assumes
critical
significance
due
to
the
ubiquity
of
wireless
communication
technology.
selective
shielding
represents
only
way
achieve
control
on
crucial
technological
sectors.
implementation
microwave
ensures
proper
functioning
electronic
devices.
By
preventing
electromagnetic
pollution,
safeguards
integrity
optimal
performances
devices,
contributing
reliability
efficiency
systems
in
various
sectors
allowing
further
step
forwards
a
safe
secure
society.
Nevertheless,
research
is
vast
can
be
quite
hard
approach
large
number
variety
studies
regarding
both
theory
experiments.
In
this
review,
we
focused
our
attention
comprehensive
discussion
current
state
art
materials
used
for
production
interference
composites,
with
aim
providing
solid
reference
point
explore
field.
Nano-Micro Letters,
Journal Year:
2024,
Volume and Issue:
16(1)
Published: Feb. 27, 2024
The
remarkable
properties
of
carbon
nanotubes
(CNTs)
have
led
to
promising
applications
in
the
field
electromagnetic
interference
(EMI)
shielding.
However,
for
macroscopic
CNT
assemblies,
such
as
film,
achieving
high
electrical
and
mechanical
remains
challenging,
which
heavily
depends
on
tube-tube
interactions
CNTs.
Herein,
we
develop
a
novel
strategy
based
metal-organic
decomposition
(MOD)
fabricate
flexible
silver-carbon
nanotube
(Ag-CNT)
film.
Ag
particles
are
introduced
situ
into
film
through
annealing
MOD,
leading
enhanced
interactions.
As
result,
conductivity
Ag-CNT
is
up
6.82
×
10
