Herein,
we
demonstrate
a
one-step,
scalable,
solution-processed
method
for
the
growth
of
nickel
sulfide
(NiS)
nanostructures
using
single-source
precursors
(SSPs)
on
flexible
substrate
as
versatile
framework
simultaneous
detection
four
DNA
nucleobases.
The
as-grown
NiS
exhibit
broad
bandgap
range
and
spherical
morphology
with
high
surface
area
significant
porosity,
confirmed
by
SEM,
TEM,
BET
analysis.
Consequently,
NiS/Ni-foam
electrode
exhibited
remarkable
electrochemical
performance
toward
oxidation
A,
G,
T,
C
due
to
its
large
area,
activity,
efficient
electron
transfer
capacity.
Under
optimum
conditions,
demonstrated
selective
all
nucleobases
over
wide
linear
from
200
1000
μM
A
50
500
T
C,
low
limit
159
147.6
16.8
45.9
along
sensitivity
1.2
×
10-4
M-1
6.1
10-3
3.0
C.
as-fabricated
revealed
excellent
reproducibility
stability
nucleobase
reliable
DPV
response
under
different
bending
twisting
conditions.
For
immediate
practical
application,
was
utilized
quantify
concentration
in
calf
thymus
Escherichia
coli
(E.
coli)
DNA,
resulting
(G
+
C)/(A
T)
ratio
0.79
1.10,
respectively.
This
simple,
cost-effective,
paves
way
development
non-invasive,
wearable
biosensors
potential
applications
early
disease
detection.
Industrial & Engineering Chemistry Research,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 21, 2024
A
series
of
ZSM-5
zeolites
with
different
acidities
and
b-axis
diffusion
distances
were
synthesized
under
hydrothermal
conditions
using
the
seed-induced
method
characterized
by
X-ray
diffraction
(XRD),
scanning
electron
microscopy
(SEM),
transmission
(TEM),
ammonia
temperature-programmed
desorption
(NH3-TPD),
infrared
spectroscopic
analysis
adsorption
pyridine
(Py-IR).
The
structure–activity
relationships
PtFe@S-1&ZSM-5
tandem
catalysts
in
propane
dehydro-aromatization
reaction
(PDA)
investigated,
especially
focusing
on
impact
acidity
distance.
results
indicate
that
zeolite
a
low
Si/Al
ratio
(∼25)
suitable
distance
(∼100
nm)
coupled
PtFe@S-1
is
more
conducive
improving
PDA
catalytic
performance.
When
mass
PtFe@S-1/ZSM-5
was
1:1,
conversion
aromatics
selectivity
PtFe@S-1&ZSM-5–25
remained
above
78.9%
40.5%
within
500
min
stream,
respectively.
Herein,
we
demonstrate
a
one-step,
scalable,
solution-processed
method
for
the
growth
of
nickel
sulfide
(NiS)
nanostructures
using
single-source
precursors
(SSPs)
on
flexible
substrate
as
versatile
framework
simultaneous
detection
four
DNA
nucleobases.
The
as-grown
NiS
exhibit
broad
bandgap
range
and
spherical
morphology
with
high
surface
area
significant
porosity,
confirmed
by
SEM,
TEM,
BET
analysis.
Consequently,
NiS/Ni-foam
electrode
exhibited
remarkable
electrochemical
performance
toward
oxidation
A,
G,
T,
C
due
to
its
large
area,
activity,
efficient
electron
transfer
capacity.
Under
optimum
conditions,
demonstrated
selective
all
nucleobases
over
wide
linear
from
200
1000
μM
A
50
500
T
C,
low
limit
159
147.6
16.8
45.9
along
sensitivity
1.2
×
10-4
M-1
6.1
10-3
3.0
C.
as-fabricated
revealed
excellent
reproducibility
stability
nucleobase
reliable
DPV
response
under
different
bending
twisting
conditions.
For
immediate
practical
application,
was
utilized
quantify
concentration
in
calf
thymus
Escherichia
coli
(E.
coli)
DNA,
resulting
(G
+
C)/(A
T)
ratio
0.79
1.10,
respectively.
This
simple,
cost-effective,
paves
way
development
non-invasive,
wearable
biosensors
potential
applications
early
disease
detection.
