Analytical Chemistry,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 17, 2024
A
ratiometric
fluorescence-photothermal
dual-mode
assay
method
is
constructed
for
the
detection
of
butyrylcholinesterase
(BChE)
activity
based
on
time-resolved
levodopa
(L-DOPA)
cascade
polymerization.
First,
a
newly
designed
bimetallic
metal–organic
framework
(MOF),
Eu/Co-DPA
(DPA:
pyridine-2,6-dicarboxylic
acid),
screened
out
as
fluorescent
nanozyme
with
high
catalytic
and
superior
luminescence
properties.
In
presence
boric
acid
(BA),
L-DOPA
forms
BA-esterified
L-DOPA,
which
catalyzed
by
to
form
oligomers
strong
blue
fluorescence.
Meanwhile,
red
fluorescence
quenched
oligomers,
generating
sensitive
turn-on/off
response.
As
polymerization
time
increases,
cleaves
borate
ester
bonds
expose
catechol
structures
facilitates
further
oxidation
promoting
formation
poly(L-DOPA)
nanoparticles
photothermal
conversion
efficiency
(30.33%).
Then,
using
thiocholine
(butyrylthiocholine
enzymolysis
product)
inhibit
Eu/Co-DPA,
BChE
detected
through
change
in
dual
signals.
Both
modes
have
low
limits
(0.021
0.024
U
L–1)
accuracy
(93.3–105.3%
recovery).
The
results
real
human
serum
indicate
that
both
show
100.0%
agreement
standard
method.
To
our
knowledge,
this
work
first
combines
MOFs
BA
regulator
tune
structure
polymers,
providing
pathbreaking
paradigm
preparing
catecholamine-based
organic
polymers.
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 5, 2025
Abstract
Electrocatalytic
water
splitting
has
emerged
as
a
key
method
for
large‐scale
production
of
green
hydrogen.
Constructing
efficient,
durable,
and
low‐cost
electrocatalysts
the
hydrogen
evolution
reaction
at
high
current
densities
is
prerequisite
practical
industrial
applications
splitting.
Recently,
non‐noble
metal‐based
self‐supporting
electrodes
have
been
explored
density
due
to
their
cost‐effective,
conductivity
metal
substrate,
robust
interfacial
binding
between
catalyst
strong
mechanical
stability.
In
this
review,
recently
reported
(Ni,
Fe,
Cu,
Co,
Ti,
Mo,
alloy)
electrode
applied
are
comprehensively
summarized,
classified,
discussed.
Five
fundamental
design
principles
such
intrinsic
activity,
abundant
active
sites,
fast
electron
transfer,
mass
transport,
stability
proposed
discussed
achieve
high‐performance
under
densities.
Furthermore,
various
modification
strategies
including
heteroatom
doping,
morphology
engineering,
interface
phase
strain
engineering
enhance
catalytic
activity
durability
electrode.
Finally,
challenges
prospects
designing
efficient
stable
in
future
This
comprehensive
overview
will
provide
valuable
insight
guidance
development
production.
Reviews in Inorganic Chemistry,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 3, 2025
Abstract
Burning
fossil
fuels
has
significantly
worsened
environmental
pollution,
particularly
due
to
the
release
of
carbon
dioxide
emissions.
The
global
efforts
promote
renewable
energy
solutions,
like
electrocatalytic
water
splitting,
have
gained
momentum.
Scientists
are
focusing
on
development
sustainable
methods
splitting
reduce
dependence
conventional
fuels.
Developing
affordable
and
effective
electrocatalysts
is
crucial
for
multifunctional
electrochemical
(ECWS).
In
comparison
traditional
electrocatalysts,
metal-organic
frameworks
(MOFs)
exhibit
favorable
catalytic
performance
decomposition
because
their
plentiful
porosity,
surface
area,
topologies
enhanced
production
hydrogen
(H
2
)
oxygen
(O
gas.
When
combined
with
MOF,
graphene
creates
a
synergistic
hybrid
nanomaterial
that
more
stable,
adaptable,
durable.
primary
goal
this
review
article
conduct
an
in-depth
investigation
latest
advancements
in
MOFs
MOF-GO
electrolysis.
Herein,
we
covered
plausible
mechanism
overall
water-splitting
processes
several
important
factors
influencing
response.
We
also
discussed
recent
progress
stability
reactions.
Finally,
highlights
challenges
application
MOF
composites
future
preference
applications.
Abstract
The
development
of
innovative
electrocatalysts
for
seawater
splitting
shows
great
potential
large‐scale
green
energy.
Specifically,
interface
engineering
plays
a
vital
role
in
improving
surface
properties
and
charge
transfer.
However,
electrolysis
encounters
considerable
challenges
like
chloride‐induced
corrosion,
impurities,
microorganisms
that
hinder
efficiency.
Herein,
we
design
highly
durable
electrocatalyst
based
on
selenium‐enriched
NiMn‐S
x
supported
low‐density
polyethylene‐derived
spherical
carbon‐Ni
foam
(Se‐NiMnS
@SC/NF)
using
combination
pyrolysis
hydrothermal
processes.
resulting
Se‐NiMnS
@SC/NF
bifunctional
catalyst
with
hollow
cycas
cone
structure
exhibited
exceptional
electrochemical
performance
corrosion
resistance
alkaline
an
ultralow
overpotential
146
262
mV
the
hydrogen
evolution
reaction
(HER)
oxygen
(OER)
to
achieve
large
current
density
500
mA
cm⁻
2
.
In
simulated
setup,
maintained
cell
voltage
2.07
V
at
,
demonstrating
outstanding
durability
over
100
h
≈100%
Faradaic
Se
S
doping
heterostructured
refines
electronic
boosts
kinetics,
while
increases
exposure
active
sites.
Additionally,
carbon
layer
provided
strong
making
excellent
electrolysis.
