ACS Applied Materials & Interfaces,
Journal Year:
2024,
Volume and Issue:
16(5), P. 6098 - 6112
Published: Jan. 24, 2024
The
optimal
combination
of
metal
ions
and
ligands
for
sensing
materials
was
estimated
by
using
a
data-driven
model
developed
in
this
research.
This
utilized
advanced
computational
algorithms
data
set
100,000
literature
pieces.
semiconductor
oxide
(SMO)
that
is
most
suitable
detecting
triethylamine
(TEA)
with
the
highest
probability
identified
Word2vec
model,
which
employed
maximum
likelihood
method.
loss
function
distribution
minimized
process.
Based
on
analysis,
novel
hierarchical
nanostructured
tungsten-based
coordination
2,5-dihydroxyterephthalic
acid
(W-DHTA)
synthesized.
synthesis
involved
postsynthetic
hydrothermal
treatment
(psHT)
self-assembly
tungsten
nanorods.
nanorods
had
significant
number
oxygen
vacancies.
Various
techniques
were
used
to
characterize
synthesized
material,
its
performance
toward
volatile
organic
compound
(VOC)
gases
evaluated.
results
showed
functionalized
exhibited
an
exceptionally
high
sensitivity
selectivity
TEA
gas.
Even
highly
disturbed
environment,
detection
limit
gas
as
low
40
parts
per
billion
(ppb).
Furthermore,
our
findings
suggest
control
vacancies
plays
crucial
role
enhancing
sensors.
approach
supported
utilization
density
functional
theory
(DFT)
computation
machine
learning
assess
analyze
sensor
devices,
providing
efficient
universally
applicable
research
methodology
development
design
next-generation
materials.
ACS Sensors,
Journal Year:
2024,
Volume and Issue:
9(2), P. 830 - 839
Published: Feb. 6, 2024
Carbon
dioxide
(CO2)
is
a
major
greenhouse
gas
responsible
for
global
warming
and
climate
change.
The
development
of
sensitive
CO2
sensors
crucial
environmental
industrial
applications.
This
paper
presents
novel
sensor
based
on
perovskite
nanocrystals
immobilized
graphene
functionalized
with
oxygen
plasma
treatment.
impact
this
post-treatment
method
was
thoroughly
investigated
using
various
characterization
techniques,
including
Raman
spectroscopy,
X-ray
diffraction,
photoelectron
spectroscopy.
detection
at
parts
per
million
(ppm)
levels
demonstrated
that
the
hybrids
subjected
to
5
min
treatment
exhibited
3-fold
improvement
in
sensing
performance
compared
untreated
layers.
Consequently,
capability
oxygen-treated
samples
showed
limit
quantification
6.9
22.9
ppm,
respectively.
Furthermore,
influence
ambient
moisture
also
evaluated,
revealing
significant
effect
Nanoporous
adsorbent
materials
are
a
key
part
of
many
industrial
processes,
including
the
rapidly
expanding
carbon
capture
industry.
The
development
advanced
sorbents
requires
an
assessment
sorbent's
performance
under
mixed-gas
conditions.
Existing
measurement
techniques
tend
to
be
slow,
material-intensive,
and
have
limited
ability
measure
competitive
sorption.
We
developed
novel
technique
that
measures
thin
films
deposited
onto
sensitive
microelectromechanical
system
(MEMS)
transducers.
This
is
fast,
very
little
material,
enables
real-time
monitoring
binary
gas
report
measurements
CO2/H2O
isotherms
at
three
different
temperatures
on
MOF
CALF-20.
measured
experimental
data
mixture
adsorption
in
CALF-20
demonstrate
severe
limitations
Ideal
Adsorbed
Solution
Theory
(IAST)
providing
quantitative
estimation
component
loadings.
Departures
from
IAST
quantified
by
introduction
activity
coefficients
use
Real
(RAST).
Crystals,
Journal Year:
2025,
Volume and Issue:
15(2), P. 153 - 153
Published: Feb. 1, 2025
Calcium
orthophosphate
material
(Ca1-xCux)HPO4.nH2O
(0.4
≤
x
1)
with
the
gradual
replacement
of
Ca2+
Cu2+
ions
were
synthesized
by
a
chemical
precipitation
technique.
Samples
characterized
X-ray
diffraction
(XRD),
scanning
electron
microscopy
(SEM)
and
transmission
(TEM).
Then,
prepared
powders
deposited
onto
an
alumina
substrate
interdigitated
Pt
electrodes
spin
coating
method
polyvinyl
alcohol
(PVA)
as
binder.
Successively,
sensors
investigated
from
0%
to
90%
at
room
temperature
under
various
conditions,
including
humidity,
nitrogenous
oxide,
methane,
carbon
dioxide
ammonia.
The
results
evidenced
that
RH,
sensitivity
significantly
increased
increase
in
Cu
content.
Moreover,
exhibited
good
repeatability
and,
after
1
year
aging,
sensor
response
was
equal
34%
freshly
sensor.
Finally,
there
no
interference
presence
other
gases
(nitrogenous
oxide
2.5
ppm,
methane
10
500
ppm
ammonia
4
ppm).
Micromachines,
Journal Year:
2023,
Volume and Issue:
14(5), P. 945 - 945
Published: April 27, 2023
The
Growing
demands
for
humidity
detection
in
commercial
and
industrial
applications
led
to
the
rapid
development
of
sensors
based
on
different
techniques.
Surface
acoustic
wave
(SAW)
technology
is
one
these
methods
that
has
been
found
provide
a
powerful
platform
sensing
owing
its
intrinsic
features,
including
small
size,
high
sensitivity,
simple
operational
mechanism.
Similar
other
techniques,
principle
SAW
devices
also
realized
by
an
overlaid
sensitive
film,
which
serves
as
core
element
whose
interaction
with
water
molecules
responsible
overall
performance.
Therefore,
most
researchers
are
focused
exploring
materials
achieve
optimum
performance
characteristics.
This
article
reviews
used
develop
their
responses
theoretical
aspects
experimental
outcomes.
Herein
influence
film
parameters
device,
such
quality
factor,
signal
amplitude,
insertion
loss,
etc.,
highlighted.
Lastly,
recommendation
minimize
significant
change
device
characteristics
presented,
we
believe
will
be
good
step
future
sensors.
Flexible and Printed Electronics,
Journal Year:
2023,
Volume and Issue:
8(3), P. 035003 - 035003
Published: July 19, 2023
Abstract
In
order
to
meet
the
increasing
food
demand,
sensors
that
measure
ambient
temperature
and
humidity
in
greenhouses
are
needed
for
more
efficient
vegetable
fruit
production.
For
this
purpose,
two
different
flexible
resistant
textile-based
can
at
higher
levels
(80%,
90%,
100%
relative
(RH))
were
designed
printed
directly
on
four
greenhouse
fabrics
using
silver
carbon
conductive
inks.
Depending
value
environment,
sensor
performance
was
tested
based
electrical
resistance
measurements
with
respect
repeated
bending/cyclic
tests,
rubbing,
ultraviolet
(UV)
exposure/
weatherability
(against
UV
raining)
tests
simulate
conditions
smart
agriculture.
Despite
applying
1024
bending
cycles,
up
20
rubbing
10
times
rain
exposure
high
RH,
no
significant
change
detected
values
of
sensors.
Moreover,
some
important
features
such
as
hysteresis,
repeatability,
response
time
have
been
also
examined.
According
hysteresis
test
results,
show
acceptable
dynamic
15.8,
17.3,
24.8,
25
s
RH
G2S,
W1S,
B2C,
W1C,
respectively.
Statistical
analyses
showed
designs
type
inks
had
effects
best
obtained
polypropylene
coated
fabric
design
II
ink.
The
fabricated
textile
detect
from
80%
achieve
good
durability,
repeatability
even
after
prolonged
raining.
Thus,
developed
might
be
useful
future
agricultural
applications.
IEEE Sensors Journal,
Journal Year:
2024,
Volume and Issue:
24(6), P. 7816 - 7823
Published: Jan. 23, 2024
In
sensor
systems,
most
sensors
are
single-point
detection,
and
it
is
challenging
to
develop
a
multi-point
where
multiple
points
can
be
sensed.
This
work
reports
low-cost
relative
humidity
(RH)
relying
on
intensity-variation
based
the
side
coupling
technique
using
polymer
optical
fiber,
three
integrated
into
single
illuminating
fiber.
The
structure
contains
twisting
of
two
fiber
times
coated
with
agarose-gel,
while
rise
in
causes
change
refractive
index
(RI)
between
twisted
fibers.
experimental
results
reveal
that
provide
linear
relationship
20%
80%
RH
sensitivity
0.4636
μW/%,
0.4402
0.4153
μW/%.
Detection
limits
1.57%,
1.79%,
2.02%
for
sensor-1,
sensor-2,
sensor-3,
respectively,
bend
radius
probe
10
mm.
When
increased
from
80%,
resulting
more
sensitive
as
well
sensor’s
rises
when
reduces.
A
lower
detection
limit
obtained
coating
agarose-gel.
addition,
novel
cost-effective
solution
offers
benefits
decent
reversibility,
rapid
reaction
time
(about
1
sec),
temperature
dependency.
