ACS Materials Letters,
Год журнала:
2024,
Номер
7(1), С. 149 - 155
Опубликована: Дек. 6, 2024
Metal-oxide
semiconductor
sensing
materials
with
excellent
performance
are
highly
desired
for
the
detection
of
toxic,
volatile,
and
flammable
gases.
However,
lack
material
structure–property
relationships
gas-sensing
mechanisms
has
severely
limited
rational
design
materials.
Herein,
we
try
to
understand
how
electronic
structure,
d-band
center,
atomic
orbital
bonding
influence
gas
adsorption
energy,
which
exhibits
a
strong
correlation
both
selectivity
sensitivity
As
result,
lattice
distortion
induced
by
introducing
heteroatoms
prompts
La
atoms
actively
participate
in
process,
leads
formation
multiatomic
hybridization
bonds,
significantly
increasing
energy
ethanol
acetone
molecules.
This
work
illustrates
that
creating
greater
is
an
effective
strategy
modulate
strength
adsorption,
important
guiding
synthesis
metal-oxide
Journal of Materials Chemistry A,
Год журнала:
2024,
Номер
unknown
Опубликована: Янв. 1, 2024
Recent
advancements
pertaining
to
the
applications
of
MXenes
and
MOFs
in
paper-based
sensors
are
discussed,
focusing
on
challenges
future
perspectives.
Advanced Materials Technologies,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 8, 2025
Abstract
Methane
(CH
4
)
serves
as
a
commonly
utilized
fuel
gas
in
various
industrial
and
everyday
settings.
Given
its
flammable,
explosive,
greenhouse
nature,
the
real‐time
monitoring
of
concentration
air
holds
vital
importance
across
practical
applications.
The
tetrahedral
structure
methane
molecules
features
high
bond
energies,
posing
significant
challenge
for
chemical
detection
over
metal
oxide‐sensitive
layers.
In
this
research,
multicomponent
assembly
method
is
used
to
synthesize
ordered
mesoporous
tin
oxide
(SnO
2
with
uniform
large
mesopores
(≈
10
nm)
pore
wall
functionalized
Pd
x
Pt
nanoalloys
2.5
nm),
due
unusual
C–H
activation
capabilities
semiconducting
properties
SnO
,
obtained
Pt@m‐SnO
fabricate
sensors
which
showcases
wide
applicability
range
detecting
concentrations
ranging
from
50
20
000
ppm
at
400
°C,
it
yields
substantial
CH
response
9.19
(1000
ppm)
an
ultralow
limit
value
175.9
ppb.
Furthermore,
sensor
successfully
incorporated
into
portable
device,
evidencing
capability
accurate
real‐world
scenarios.
Analytical Chemistry,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 24, 2025
Rapid
and
sensitive
detection
of
2-ethylhexanol
vapor,
a
critical
indicator
overheating
in
electrical
cables,
is
essential
for
the
early
warning
potential
fires.
However,
traditional
chemiresistive
gas
sensors
are
inadequate
real-time
owing
to
its
chemical
stability.
Herein,
sensor
based
on
mesoporous
Nd-doped
In2O3
designed
rapid
ppb-level
vapor.
The
exhibits
high
response
(22.8@1
ppm),
excellent
sensitivity
(4.7
ppm–1),
short
time
(29
s),
low
limit
(760
ppb).
After
Nd
doping,
approximately
20
folds
higher
than
that
sensor.
Furthermore,
wireless
sensing
device
has
been
developed
enable
monitoring
cable
overheating.
outstanding
performance
can
be
attributed
neodymium
doping
within
framework,
which
enhances
accessibility
active
sites
interface
materials,
increases
concentration
surface-adsorbed
oxygen
at
gas–solid
interface,
improves
adsorption
capacity
2-ethylhexanol.
This
work
showcases
an
efficient
semiconductor
metal
oxide
capable
rapidly
sensitively
detecting
parts
per
billion
levels
induced
by
demonstrating
significant
Advanced Healthcare Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 17, 2025
The
complicated
environment
of
the
oral
cavity
presents
significant
challenges
to
traditional
antibacterial
approaches,
which
has
driven
exploration
novel
therapeutic
strategies.
Metal-based
nanomaterials
(MNMs),
with
diverse
mechanisms
(e.g.,
membrane
disruption,
oxidative
stress)
and
evolution
from
empirical
theory-guided
design,
exhibit
immense
potential.
This
review
introduces
pioneering
Hierarchical
Response
Strategy
Framework,
systematically
classifying
MNM
systems
into
three
progressive
levels:
Primary
category,
comprising
MNMs
that
exert
spontaneous
effects
based
on
inherent
physicochemical
properties
ion
release);
Secondary
including
precisely
controlled
actions
by
microenvironmental
or
stimulus-responsive
light-induced
ROS);
Tertiary
encompassing
integrate
regenerative
functions
for
multidimensional
therapy
remineralization).
Through
this
framework,
authors
elucidate
MNMs'
transition
single-function
precision-controlled,
multifunctional
synergy,
analyze
impact
metal
elements
structural
design
efficacy,
summarize
their
applications
in
dental
caries,
endodontic
infections,
periodontal
disease,
etc.
framework
offers
a
perspective
existing
research
theoretical
foundation
rational
next-generation
precise,
smart,
comprehensive
anti-infective
materials.
Nano-Micro Letters,
Год журнала:
2025,
Номер
17(1)
Опубликована: Май 26, 2025
Abstract
Conventional
gas
sensing
materials
(e.g.,
metal
oxides)
suffer
from
deficient
sensitivity
and
serve
cross-sensitivity
issues
due
to
the
lack
of
efficient
adsorption
sites.
Herein,
heteroatom
atomically
doping
strategy
is
demonstrated
significantly
enhance
performance
oxides-based
materials.
Specifically,
Sn
atoms
were
incorporated
into
porous
Fe
2
O
3
in
form
dispersed
As
revealed
by
X-ray
absorption
spectroscopy
atomic-resolution
scanning
transmission
electron
microscopy,
these
successfully
occupy
sites
lattice,
forming
unique
Sn–O–Fe
Compared
Fe–O–Fe
(from
bare
)
Sn–O–Sn
SnO
/Fe
with
high
loading),
on
exhibit
a
superior
(
R
g
/
=
2646.6)
1
ppm
NO
,
along
dramatically
increased
selectivity
ultra-low
limits
detection
(10
ppb).
Further
theoretical
calculations
suggest
that
strong
(N
atom
site,
site)
contributes
more
response,
compared
other
gases
Moreover,
reduce
bandgap
not
only
facilitating
release
but
also
increasing
at
low
working
temperature
(150
°C).
This
work
introduces
an
effective
construct
show
response
specific
molecules,
potentially
promoting
rational
design
modified
selectivity.
