Journal of Sound and Vibration,
Год журнала:
2024,
Номер
580, С. 118388 - 118388
Опубликована: Март 13, 2024
In
this
contribution,
a
variationally
consistent
novel
Elishakoff
beam
theory
considering
long-range
interactions
has
been
developed,
which
succeeds
in
emulating
the
dynamic
behavior
of
CNTs
with
both
(5,5)
and
(10,10)
armchairs,
something
that
not
attained
previously.
This
is
based
on
modification
Timoshenko
one,
taken
here
for
first
time
as
basis
two
finite
element
implementations,
their
equations
motion
written
either
coupled
set
terms
displacement
rotation
(reducible
formulation)
or
single
equation
only
(irreducible
formulation).
Both
stability
accuracy
analyses
are
performed,
concluding
irreducible
form
allows
longer
steps,
while
providing
appropriate
throughout
whole
wavenumber
range.
ACS Sensors,
Год журнала:
2023,
Номер
8(2), С. 482 - 514
Опубликована: Янв. 19, 2023
Graphene
remains
of
great
interest
in
biomedical
applications
because
biocompatibility.
Diseases
relating
to
human
senses
interfere
with
life
satisfaction
and
happiness.
Therefore,
the
restoration
by
artificial
organs
or
sensory
devices
may
bring
a
bright
future
recovery
patients.
In
this
review,
we
update
most
recent
progress
graphene
based
sensors
for
mimicking
such
as
retina
image
sensors,
eardrums,
gas
chemical
tactile
sensors.
The
brain-like
processors
are
discussed
on
conventional
transistors
well
memristor
related
neuromorphic
computing.
brain–machine
interface
is
introduced
providing
single
pathway.
Besides,
muscles
summarized
means
actuators
order
react
physical
world.
Future
opportunities
remain
elevating
performances
human-like
their
clinical
applications.
Advanced Materials Technologies,
Год журнала:
2022,
Номер
7(7)
Опубликована: Янв. 5, 2022
Abstract
Laser‐induced
graphene
(LIG)
produced
by
irradiation
of
paper
(paper‐LIG)holds
substantial
promise
for
flexible
devices.
This
article
presents
paper‐LIG
humidity
and
temperature
sensors
fabricated
single‐step
common
filter
with
a
pulsed
UV
laser
(355
nm).
The
influence
the
process
parameters
on
conversion
cellulose
fibers
into
LIG
is
discussed
based
resulting
morphology,
structure,
conductivity,
chemical
composition,
revealing
distinct
barrier
to
transformation
propagation
behavior
not
seen
under
CO
2
irradiation.
obtained
material
constituted
porous,
electrically
conductive
network
fibers.
relative
(RH)
sensitivities
up
1.3
×
10
−3
%RH
−1
‐
2.8
°
C
,
respectively,
are
examined
in
terms
their
linearity,
reproducibility,
response
time.
A
detailed
discussion
mechanism
presented
context
literature,
pointing
towards
absorption
water
molecules
interlayer
spacing
as
main
reason
increase
resistance
RH.
Additionally,
contribution
from
variable
range
hopping
along
ab
plane
at
high
RH
suggested.
These
results
demonstrate
potential
low‐cost,
sustainable,
environmentally
friendly
sensing.
Materials,
Год журнала:
2022,
Номер
15(21), С. 7804 - 7804
Опубликована: Ноя. 4, 2022
Graphene
is
fundamentally
a
two-dimensional
material
with
extraordinary
optical,
thermal,
mechanical,
and
electrical
characteristics.
It
has
versatile
surface
chemistry
large
area.
carbon
nanomaterial,
which
comprises
sp2
hybridized
atoms
placed
in
hexagonal
lattice
one-atom
thickness,
giving
it
structure.
A
number
of
synthesis
techniques
including
epitaxial
growth,
liquid
phase
exfoliation,
electrochemical
mechanical
chemical
vapor
deposition
are
used
for
the
graphene.
prepared
using
different
can
have
benefits
deficiencies
depending
on
its
application.
This
study
provides
summary
graphene
preparation
critically
assesses
use
graphene,
derivates,
composites
environmental
applications.
These
applications
include
as
membrane
detoxication
purification
water,
active
gas
sensing,
heavy
metal
ions
detection,
CO2
conversion.
Furthermore,
trend
analysis
both
been
performed
by
extracting
analyzing
Scopus
data
from
past
ten
years.
Finally,
conclusions
outlook
provided
to
address
residual
challenges
related
Carbon,
Год журнала:
2022,
Номер
197, С. 253 - 263
Опубликована: Июнь 15, 2022
Laser-induced
graphene
from
paper
(paper-LIG)
was
applied
in
non-enzymatic
electrochemical
sensing
of
uric
acid
(UA)
human
urine.
Paper-LIG
formed
by
CO2
laser
modification
into
a
3D
arrangement.
Kinetic
analysis
paper-LIG
electrodes
returned
effective
heterogeneous
electron
transfer
standard
rate
constants
1.4
×
10−3
cm
s−1
and
7.8
10−4
for
[Ru(NH3)6]2+/3+
[Fe(CN)6]4−/3−
redox
probes,
respectively.
These
were
able
to
detect
quantify
PBS
within
the
10–300
μM
range
at
pH
between
5.6
7.4.
At
7.4,
linear
response
(R2
=
0.999)
10
250
achieved,
with
limit
detection
3.97
sensitivity
0.363
μA
cm−2
μM−1.
denoted
adequate
selectivity
synthetic
urine
as
well
ascorbic
(AA)
dopamine
(DA)-containing
electrolytes.
Determination
urinary
UA
content
samples
concentration
c.a.
1.8–1.9
mM,
healthy
individuals.
Recoveries
spiked
50
100
100.6%
95.4%,
respectively,
satisfactory
reproducibility
stability.
cheap,
lightweight,
flexible,
eco-friendly
biosensors
quantification
pave
way
widespread
application
other
important
biomarkers.
Heliyon,
Год журнала:
2022,
Номер
8(11), С. e11225 - e11225
Опубликована: Окт. 25, 2022
Polypropylene
has
been
used
for
applications
requiring
high
mechanical
properties,
good
adhesion,
chemical
stability
and
insulation.
Whereas,
itself
is
flammable,
its
limiting
oxygen
index
(LOI)
low,
which
cannot
pass
the
UL-94
combustion
test.
Therefore,
extensive
use
will
cause
a
serious
threat
to
human
life
property.
With
wide
application
of
thermoplastic
polypropylene
in
industry,
development
environmentally
friendly
flame
retardant
materials
become
an
important
research
direction.
For
past
dozen
years,
researchers
have
exploring
retardants
with
efficiency,
low
toxicity,
less
smoke
or
other
excellent
performance
retardants.
This
paper
reviews
progress
some
phosphorus-containing
on
properties
recent
years.
Phosphorus
application.
The
types
phosphorus
be
introduced,
future
summarized,
direction
opportunities.
ACS Applied Materials & Interfaces,
Год журнала:
2022,
Номер
14(18), С. 21474 - 21485
Опубликована: Апрель 29, 2022
Multiresponsive
and
high-performance
flexible
actuators
with
a
simple
configuration,
high
mechanical
strength,
low-power
consumption
are
highly
desirable
for
soft
robotics.
Here,
novel
mechanically
robust
multiresponsive
Ti3C2Tx
MXene-based
actuator
actuation
performance
via
dual-mechanism
synergistic
effect
driven
by
the
hygroexpansion
of
bacterial
cellulose
(BC)
layer
thermal
expansion
biaxially
oriented
polypropylene
(BOPP)
is
developed.
The
shows
an
ultrahigh
tensile
strength
195
MPa.
Unlike
conventional
bimorph-structured
based
on
single-mechanism,
developed
provides
favorable
architecture
synergism,
resulting
in
exceptionally
reversible
under
electricity
near-infrared
(NIR)
light
stimuli.
Typically,
can
produce
largest
bending
angle
(∼400°)
at
lowest
voltage
(≤4
V)
compared
that
reported
previously
single
mechanism
actuators.
Furthermore,
also
be
NIR
2
m
distance,
displaying
excellent
long-distance
photoresponsive
property.
Finally,
various
intriguing
applications
demonstrated
to
show
great
potential
Advanced Materials Technologies,
Год журнала:
2022,
Номер
8(5)
Опубликована: Дек. 7, 2022
Abstract
Stretchable
strain
sensors
with
high
stability,
responsiveness,
and
low
detection
limit
provide
the
broad
potential
for
intelligent
robots
electronic
skin.
However,
developing
low‐cost
contact
non‐contact
sensing
modes
remains
a
significant
challenge.
In
this
study,
flexible
magnetic
sensor
based
on
sandwich
structure
is
proposed
to
address
The
utilizes
coordination
between
carbon
black
Fe
3
O
4
microparticles
in
silicone
rubber
matrix
enhance
sensor's
sensitivity
external
stimuli.
exhibits
excellent
tensile
properties
range
of
up
180%,
fast
response/recovery
time
(78
ms/65
ms),
durability
after
9000
cycles.
Moreover,
can
detect
micro‐vibration
micro‐strain
signals.
It
also
be
performed
as
skin
precisely
sense
human
movements.
Furthermore,
newly
developed
accurately
oncoming
objects
bicycle
riding
speed/distance,
keyboard
conceived.
Consequently,
dual‐modal
an
ability
identify
states
has
application
prospects
next‐generation
products.
