ACS Sensors,
Год журнала:
2024,
Номер
9(5), С. 2520 - 2528
Опубликована: Май 9, 2024
Alternative
energy
sources
are
required
due
to
the
decline
in
fossil
fuel
resources.
Therefore,
devices
that
utilize
hydrovoltaic
technology
and
light
have
drawn
widespread
attention
because
they
emission-free
solar
is
inexhaustible.
However,
previous
investigations
mainly
focused
on
accelerating
water
evaporation
rate
at
electrode
interface.
Here,
a
cooperative
photoelectrochemical
effect
chip
achieved
using
NH2-MIL-125-modified
TiO2
nanotube
arrays
(NTs).
This
device
demonstrated
significantly
improved
evaporation-triggered
electricity
generation.
Under
LED
illumination,
open-circuit
voltage
(VOC)
of
NH2-MIL-125/TiO2NTs
active
layer
was
enhanced
by
90.3%
(up
400.2
mV).
Furthermore,
prepared
showed
good
high-salinity
tolerance,
maintaining
74.6%
its
performance
even
5
M
NaCl.
By
introducing
Schiff-based
reaction
between
formaldehyde,
fully
integrated
flexible
sensor
successfully
fabricated
for
formaldehyde
monitoring,
low
limit
detection
5.2
×
10–9
achieved.
novel
strategy
improving
offers
completely
new
general
approach
construct
self-powered
point-of-care
sensing.
Chemical Science,
Год журнала:
2024,
Номер
15(19), С. 7308 - 7315
Опубликована: Янв. 1, 2024
Combining
structural
regulation
with
photo
induced
charge
transfer
(PICT),
a
surface
and
interference
co-enhanced
Raman
scattering
(SICERS)
platform
was
developed
on
corrugated
TiO
2
nanotube
arrays
(c-TiO
NTs).
Accounts of Materials Research,
Год журнала:
2024,
Номер
5(6), С. 761 - 771
Опубликована: Май 16, 2024
ConspectusIons,
small
molecules,
and
biomacromolecules
are
important
components
of
the
human
body.
They
usually
play
roles
in
various
physiological
pathological
events,
showing
a
close
relationship
with
health.
However,
due
to
ultralow
concentrations
these
substances
presence
interfering
chemicals,
accurate
reliable
measurement
ions
molecules
remains
huge
challenge.
Nanopore
sensors,
which
combine
nanofluidic
electrochemical
technologies,
have
received
great
deal
attention
recent
years.
sensing
is
generally
realized
by
measuring
behaviors
nanopores,
endows
this
technique
advantages
high
sensitivity,
fast
response,
sampling
frequency,
experimental
simplicity.
In
addition,
owing
confinement
effect,
interaction
between
analytes
nanopore
greatly
enhanced,
can
further
improve
even
achieving
single-entity
analysis.
With
development
materials
science,
micro/nanoprocessing
mass
transport
theories
at
nanoscale,
sensors
established
themselves
as
promising
tool
for
analysis
ions,
biomolecules,
nanoparticles.
materials,
core
be
classified
into
three
categories
based
on
pore
structure:
single
arrayed
composite
nanopores.
Single
nanopores
include
two-dimensional
(2D)
material
glass/quartz
nanopipettes.
The
single-pore
structure
offer
sensitivity
spatial
resolution,
making
suitable
Arrayed
consist
large
number
orderly
arranged
pores,
including
polymer
metal
oxide
Arrayed-nanopore
possess
advantages,
easy
preparation,
low
cost,
throughput,
them
widely
applicable
biochemical
environmental
Composite
other
hand,
such
conductive
polymers
plasmonic
metals,
enhance
accuracy
sensing.
Through
introducing
recognition
elements
analyte
produce
predictable
changes
properties,
diameter,
shape,
surface
charge,
wettability,
resulting
readable
ion-current
signals.In
Account,
we
summarize
advancements
nanopore-sensing
mechanisms,
practical
applications,
mainly
work
published
our
group.
We
first
briefly
introduce
single-,
arrayed-,
composite-nanopore
their
corresponding
fabrication
methods
then
functionalization
techniques
employed
incorporate
sites
within
Then,
provide
glimpse
fundamentals
sensing,
ion
mechanisms
different
strategies.
Whereafter,
present
applications
sensors.
Finally,
discuss
challenges
opportunities
improving
performance
an
outlook
future
technique.
Physica Scripta,
Год журнала:
2025,
Номер
100(3), С. 035948 - 035948
Опубликована: Фев. 18, 2025
Abstract
Herein,
a
novel
composite
54[BaO.TiO
2
]-46[K
O.SiO
],
(BTKS)
was
synthesized
via
melt-quenching
approach
for
detection
of
CO
gas.
The
measurements
gas
sensing
were
performed
in
the
range
250–1500
ppm.
XRD
study
reveals
polycrystalline
nature
with
major
and
minor
phases
witherite
(BaCO
3
),
BaTiSi
O
9
BaTiO
.
Further,
UV-Visible
spectroscopy
used
revealed
semiconducting
composite.
SEM
TEM
rod-like
morphology
along
homogenous
pores
voids
within
composite,
attributed
excellent
behaviour.
FTIR
Raman
spectroscopies
executed,
revealing
bonds
formation
Si–O–Si,
Ti–O–Ti,
Si–O–Ti.
response
at
1000
ppm
obtained
3.38
time
19.23s,
recovery
21.54s
respectively.
based
portable,
cost-effective
device
might
be
medical
diagnostics
to
overcome
health
risks
future.
