Photoexcited CuO/TiO2 Heterojunction for Photoelectrochemical Sensors for Nonenzymatic Glucose Detection
Langmuir,
Год журнала:
2025,
Номер
41(2), С. 1526 - 1535
Опубликована: Янв. 10, 2025
Photoelectrochemical
sensors
have
been
studied
for
glucose
detection
because
of
their
ability
to
minimize
background
noise
and
unwanted
reactions.
Titanium
dioxide
(TiO2),
a
highly
efficient
material
in
converting
light
into
electricity,
cannot
utilize
visible
light.
In
this
regard,
we
developed
nonenzymatic
sensor
by
using
simple
one-step
electrospinning
technique
combine
cupric
oxide
with
TiO2
create
heterojunction.
The
prepared
nanofibers
exhibit
an
extremely
high
aspect
ratio
dense
structure.
These
characteristics
enhance
the
quantity
electron-hole
pairs
generated
speed
at
which
electrons
are
transferred.
They
also
reduce
distance
that
charges
need
travel
offer
reactive
sites
catalytic
oxidation
glucose.
has
direct
proportional
reaction
within
concentration
ranging
from
30
μM
2
mM
under
sunlight
conditions.
It
achieves
limit
9.9
signal-to-noise
3.
excellent
stability,
reproducibility,
selectivity.
This
study
provides
insights
development
photoelectrochemical
detect
Язык: Английский
Graphene Photoelectrochemical Transistor for Dual‐Directional Signal‐on Biosensing
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 27, 2025
Abstract
Recent
research
has
demonstrated
the
potential
of
photogating
in
regulating
characteristics
photoelectrochemical
transistors.
Here
it
is
reported
graphene
transistor
(GPECT)
with
dual‐directional
signal‐on
biosensing
as
exemplified
by
channel
gated
p/n‐type
metal–organic
frameworks
(MOFs)
upon
light
illumination
toward
aptasensing.
Due
to
shift
Dirac
point
induced
MOFs,
operation
mutually
verifiable
dual
readout
could
be
achieved.
For
aptasensing,
assistance
biocatalytic
precipitation
reaction,
such
a
device
validated
for
highly
sensitive
detection
thrombin
limits
low
5.2
and
0.1
f
m
,
respectively.
This
study
demonstrates
not
only
general
protocol
GPECTs
but
also
unique
novel
optoelectronics.
Язык: Английский