Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 10, 2024
Abstract
Hydrophilicity‐hydrophobicity
modulation
of
active
sites
provides
a
promising
strategy
for
enhancing
catalytic
performance.
Current
researches
focus
on
the
influence
substrate
molecules,
however,
role
H
2
O
molecules
is
often
overlooked
in
nanozyme‐catalyzed
reactions.
Herein,
bioinspired
Pt@ZIF‐R
(R
=
‐90,
‐8,
‐8@TMS,
where
TMS
tetraethoxysilane)
nanozymes
are
designed
as
model
catalysts,
with
Pt
nanoparticles
centers
and
metal
organic‐framework
nanocavities
hydrophilic‐hydrophobic
binding
pockets,
revealing
critical
peroxidase‐like
process
decomposition.
A
positive
correlation
between
activity
hydrophobicity
observed,
strong
hydrophobic
Pt@ZIF‐8@TMS
nanozyme
exhibits
best
Theoretical
calculations
indicate
that
increases,
solvent
reduces
competitive
adsorption
decreases
energy
barrier
rate‐determining
step
(2*O→*O
)
simultaneously.
In
addition,
desorption
product
thermodynamically
favorable
increasing
hydrophobicity.
Importantly,
successfully
used
to
develop
colorimetric
biosensor
detection
organophosphorus
pesticides,
limit
low
0.7
ng
mL
−1
,
which
superior
numerous
existing
methods.
This
work
fundamental
insights
into
function
boosting
activity,
may
offer
guidance
development
efficient
nanozymes.
Journal of Materials Chemistry A,
Journal Year:
2024,
Volume and Issue:
12(19), P. 11149 - 11175
Published: Jan. 1, 2024
The
current
review
discusses
on
vanadium-
and
manganese-based
metal–organic
frameworks
their
derivatives
for
energy
storage
conversion
applications
along
with
the
potential
future
advancements
in
these
fields.
Journal of the American Chemical Society,
Journal Year:
2024,
Volume and Issue:
146(29), P. 20391 - 20400
Published: July 10, 2024
Inspired
by
enzymatic
catalysis,
it
is
crucial
to
construct
hydrogen-bonding-rich
microenvironment
around
catalytic
sites;
unfortunately,
its
precise
construction
and
understanding
how
the
distance
between
such
sites
affects
catalysis
remain
significantly
challenging.
In
this
work,
a
series
of
metal-organic
framework
(MOF)-based
single-atom
Ru
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
63(11)
Published: Jan. 10, 2024
Engineering
isolated
metal
sites
resembling
the
primary
coordination
sphere
of
metallocofactors
enables
atomically
dispersed
materials
as
promising
nanozymes.
However,
most
existing
nanozymes
primarily
focus
on
replicating
specific
while
neglecting
other
supporting
cofactors
within
active
pockets,
leading
to
reduced
electron
transfer
(ET)
efficiency
and
thus
inferior
catalytic
performances.
Herein,
we
report
a
metal-organic
framework
UiO-67
nanozyme
with
iron
sites,
which
involves
multiple
tailored
enzyme-like
nanocofactors
that
synergistically
drive
ET
process
for
enhanced
peroxidase-like
catalysis.
Among
them,
linker-coupled
atomic
site
plays
critical
role
in
substrate
activation,
bare
linkers
zirconia
nodes
facilitate
intermediates.
The
synergy
three
results
4.29-fold
enhancement
compared
single
effort
site-based
nanocofactor,
holding
promise
immunoassay
sensitive
detection
chlorpyrifos.
This
finding
opens
new
way
designing
high-performance
by
harmonizing
various
at
molecular
scale.
Analytical Chemistry,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 2, 2025
Conventional
solid/liquid
electrochemical
interfaces
typically
encounter
challenges
with
impeded
mass
transport
for
poor
quantification
due
to
the
intricate
pathways
of
reactants
from
bulk
solution.
To
address
this
issue,
work
reports
an
innovative
approach
integrating
a
target-activated
DNA
framework
nanomachine
electrochemically
driven
metal-organic
(MOF)
conversion
self-sacrificial
biosensing.
The
presence
target
biomarker
serotonin
initiates
by
entropy-driven
circuit
form
cross-linked
nanostructure
and
subsequently
release
Fe-MOF
probe.
Acting
as
natural
metal
precursor
nanoconfined
source
reactant,
probe
is
converted
into
electroactive
Prussian
Blue
during
processes.
Taking
advantage
confinement
effect,
our
proposed
biosensor
exhibits
excellent
capability
detect
in
linear
range
1
pM
5
μM
remarkable
detection
limit
0.4
exceptional
specificity
against
other
interferents.
proof-of-concept
demonstration
clinical
serum
samples
patients
carcinoid
tumors
highlights
utility
complex
sample
analysis.
design
could
be
applied
high
potential
inspire
sensing
approaches,
holding
promise
applications
biomedical
research
disease
diagnosis.
Analytical Chemistry,
Journal Year:
2024,
Volume and Issue:
96(28), P. 11463 - 11471
Published: July 4, 2024
In
this
work,
we
reported
a
cholesterol
oxidase
(Chox)-loaded
platinum
(Pt)
nanozyme
with
the
collaborative
cascade
nanoreactor
for
construction
of
nanozyme-enzyme-linked
immunosorbent
assay
(N-ELSA)
models
to
realize
high-throughput
rapid
evaluation
cancer
markers.
Considering
high
specific
surface
area
and
manipulable
sites,
ZIF-8
was
used
as
substrate
natural
enzyme
loading.
The
constructed
ZIF-8-Pt
platform
exhibited
efficient
enzyme-like
catalytic
efficiency
standard
corrected
activity
60.59
U
mg
Chemical Society Reviews,
Journal Year:
2024,
Volume and Issue:
53(18), P. 9029 - 9058
Published: Jan. 1, 2024
The
integration
of
chirality,
specifically
through
the
chirality-induced
spin
selectivity
(CISS)
effect,
into
electrocatalytic
processes
represents
a
pioneering
approach
for
enhancing
efficiency
energy
conversion
and
storage
systems.
This
review
delves
burgeoning
field
chiral
electrocatalysis,
elucidating
fundamental
principles,
historical
development,
theoretical
underpinnings,
practical
applications
CISS
effect
across
spectrum
reactions,
including
oxygen
evolution
reaction
(OER),
reduction
(ORR),
hydrogen
(HER).
We
explore
methodological
advancements
in
inducing
structural
surface
engineering
discuss
various
techniques
its
measurement,
from
magnetic
conductive
atomic
force
microscopy
(mc-AFM)
to
peroxide
titration.
Furthermore,
this
highlights
transformative
potential
addressing
key
challenges
NRR
CO
