Discover Nano,
Journal Year:
2024,
Volume and Issue:
19(1)
Published: Nov. 26, 2024
Detection
of
microRNA-196a
(miRNA-196a)
is
crucial
in
cancer
research,
enabling
early
diagnosis
and
providing
guidance
for
individualized
treatment.
In
this
work,
we
employed
a
naturally
occurring
negatively
charged
nano
silk
fibroin
(NSF)
with
high
mechanical
properties,
biocompatibility,
conductivity
to
be
encapsulated
positively
gold
nanoparticles
(AuNPs)
were
used
as
film-forming
materials
electrostatic
layer-by-layer
self-assembly
modify
the
working
electrode
screen-printed
carbon
(SPCE).
Under
optimized
experimental
conditions,
uniformly
distributed
AuNPs
on
surface
multilayer
film
modified
SPCE
(AuNPs/NSF)5.5/SPCE
combined
sulfhydryl-modified
capture
probe
cp-DNA
through
gold-sulfur
bonds.
Furthermore,
miRNA-196a
specifically
captured
complementary
base
pairing
achieve
highly
sensitive
specific
detection.
can
detect
concentration
range
1.0
×
10−13
10−6
M,
calculated
detection
limit
4.63
10−14
M
when
signal-to-noise
ratio
3.
The
obtained
results
showed
that
has
excellent
selectivity
good
stability
over
time.
Inorganics,
Journal Year:
2025,
Volume and Issue:
13(1), P. 21 - 21
Published: Jan. 15, 2025
Herein,
this
work
elucidates
the
synthesis
of
Pd-MoS2
catalyst
for
application
in
methanol-mediated
overall
water
splitting.
The
scanning
electron
microscope
(SEM)
and
transmission
(TEM)
pictures
offer
an
exciting
nanostructured
shape
Pd-MoS2,
depicting
a
high
surface
area.
Further,
high-resolution
TEM
(HRTEM)
confirm
lattice
plane
(100),
spacing
(0.26
nm),
hexagonal
crystal
structure
Pd-MoS2.
Moreover,
high-angle
annular
dark-field
(HAADF)
images
related
color
maps
disclose
Mo,
S,
Pd
elements
exhibits
lower
overpotentials
224.6
mV
[methanol-mediated
hydrogen
evolution
reaction
(MM-HER)]
at
−10
mA
cm−2
133
oxygen
(MM-OER)]
10
cm−2.
illustrates
noteworthy
stability
15.5
h
MM-HER
18
MM-OER
by
chronopotentiometry
test.
Excitingly,
Pd-MoS2∥Pd-MoS2
cell
reveals
small
potential
1.581
V
compared
to
MoS2∥MoS2
(1.648
V)
In
addition,
combination
brilliant
durability
over
ChemistrySelect,
Journal Year:
2025,
Volume and Issue:
10(2)
Published: Jan. 1, 2025
Abstract
The
industrial
application
of
green
hydrogen
production
from
water
electrolysis
strongly
depends
on
the
invention
low‐cost,
highly‐active,
and
stable
nonprecious
electrocatalysts
for
an
oxygen
evolution
reaction
(OER).
In
this
work,
a
two‐step
process
is
developed
to
prepare
NiCo‐Se/CFP
bimetallic
electrocatalyst
by
low‐temperature
selenization
NiCo‐PBA
precursors
electro‐deposited
carbon
fibre
paper.
exhibits
good
catalytic
activity
OER,
with
overpotential
307
mV
at
10
mA
cm
−2
,
Tafel
slope
only
39.94
dec
−1
in
1
M
KOH.
steady
current
density
well‐preserved
microscopic
morphology
during
20
h
proves
its
outstanding
stability.
high
inherent
attributed
3D
porous
structure,
synergistic
effects
Ni,
Co
active
components
doping,
selenization.
results
provide
insightful
reference
further
improving
composition
structure
design
while
investigating
metal
electrocatalysts.
Particle & Particle Systems Characterization,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 20, 2025
Abstract
The
idea
of
grid‐scale
hydrogen
production
by
water
electrolysis
has
been
made
possible
developing
catalyst‐anchored
three‐dimensional
(3D)
foam‐based
electrodes.
Catalytic
performance
in
and
oxygen
evolution
reactions
is
improved
incorporating
catalyst
3D
interlinked
porous
architecture,
which
enhances
electrical
conductivity
speeds
up
the
discharge
gas
bubbles.
detailed
study
on
role‐play
frameworks
energy
generation
explained
this
article.
review
also
focuses
recent
development
utilizing
these
substrates
field
electrochemistry.
Furthermore,
it
imperative
to
enhance
their
compatibility
with
renewable
systems
high‐temperature
for
sustainable
hydrogen.
Therefore,
briefly
explores
innovative
design
self‐supported
framework
electrodes
using
heterostructures
doping
techniques
develop
stable,
durable,
efficient
electrocatalysts.
These
catalysts
aim
provide
near‐zero
overpotential,
high
selectivity,
long‐term
stability
through
electrolysis,
paving
way
commercial‐scale
green
production.
can
emerge
as
a
key
technology
Molecules,
Journal Year:
2024,
Volume and Issue:
29(16), P. 3966 - 3966
Published: Aug. 22, 2024
Water
splitting
is
an
important
approach
to
hydrogen
production.
But
the
efficiency
of
process
always
controlled
by
oxygen
evolution
reaction
process.
In
this
study,
a
three-dimensional
nickel–molybdenum
binary
nanoarray
microstructure
electrocatalyst
successfully
synthesized.
It
grown
uniformly
on
Ni
foam
using
hydrothermal
method.
Attributed
their
unique
nanostructure
and
controllable
nature,
Ni-Mo-based
samples
show
superior
reactivity
durability
in
reactions.
The
series
electrocatalysts
presents
competitive
overpotential
296
mV
at
10
mA·cm−2
for
OER
1.0
M
KOH,
corresponding
with
low
Tafel
slope
121
dec−1.
has
large
double-layer
capacitance
plenty
channels
ion
transfer,
which
demonstrates
more
active
sites
improved
charge
transmission.
This
study
provides
valuable
reference
development
non-precious
catalysts
water
splitting.
