Chemical Science,
Год журнала:
2024,
Номер
15(17), С. 6200 - 6217
Опубликована: Янв. 1, 2024
Plastic
waste
has
imposed
significant
burdens
on
the
environment.
Chemical
recycling
allows
for
repeated
regeneration
of
plastics
without
deterioration
in
quality,
but
often
requires
harsh
reaction
conditions,
thus
being
environmentally
unfriendly.
Enzymatic
catalysis
offers
a
promising
solution
under
mild
it
faces
inherent
limitations
such
as
poor
stability,
high
cost,
and
narrow
substrate
applicability.
Biomimetic
may
provide
new
avenue
by
combining
enzyme-like
activity
with
stability
inorganic
materials.
demonstrated
great
potential
biomass
conversion
recently
shown
progress
plastic
degradation.
This
perspective
discusses
biomimetic
degradation
from
two
perspectives:
imitation
active
centers
substrate-binding
clefts.
Given
chemical
similarity
between
plastics,
relevant
work
is
also
included
discussion
to
draw
inspiration.
We
conclude
this
highlighting
challenges
opportunities
achieving
sustainable
via
approach.
Advanced Materials,
Год журнала:
2023,
Номер
36(10)
Опубликована: Фев. 17, 2023
Abstract
“Nanozyme”
is
used
to
describe
various
catalysts
from
immobilized
inorganic
metal
complexes,
enzymes
nanoparticles.
Here,
the
history
of
nanozymes
dvescribed
in
detail,
and
they
can
be
largely
separated
into
two
types.
Type
1
refer
or
on
nanomaterials,
which
were
dominant
first
decade
since
2004.
2
nanozymes,
rely
surface
catalytic
properties
are
dominating
type
past
decade.
The
definition
evolving,
a
based
same
substrates
products
as
able
cover
most
currently
claimed
although
may
have
different
mechanisms
compared
their
enzyme
counterparts.
A
broader
inspire
application‐based
research
replace
with
nanomaterials
for
analytical,
environmental,
biomedical
applications.
Comparison
also
requires
clear
nanozyme
unit.
Four
ways
defining
unit
described,
iron
oxide
horseradish
peroxidase
activity
comparison
examples
each
definition.
Growing
work
devoted
understanding
mechanism
provides
basis
further
rational
engineering
active
sites.
Finally,
future
perspective
field
discussed.
Environmental Science Nano,
Год журнала:
2024,
Номер
11(3), С. 766 - 796
Опубликована: Янв. 1, 2024
Here
we
made
a
critical
review
on
nanozyme-involved
detection
and
degradation
of
environmental
pollutants,
the
research
progress
achieved
in
last
five
years
was
emphatically
concluded.
Biosensors,
Год журнала:
2023,
Номер
13(3), С. 314 - 314
Опубликована: Фев. 24, 2023
Nanozymes
are
nanomaterials
with
enzyme-like
activity,
possessing
the
unique
properties
of
and
natural
catalytic
functions.
catalytically
active,
stable,
tunable,
recyclable,
versatile.
Therefore,
increasing
attention
has
been
paid
in
fields
environmental
science
life
sciences.
In
this
review,
we
focused
on
most
recent
applications
nanozymes
for
monitoring,
management,
protection.
We
firstly
introduce
tuning
activity
according
to
some
crucial
factors
such
as
size
shape,
composition
doping,
surface
coating.
Then,
application
introduced
detail.
can
not
only
be
used
detect
inorganic
ions,
molecules,
organics,
foodborne
pathogenic
bacteria
but
also
involved
degradation
phenolic
compounds,
dyes,
antibiotics.
The
capability
was
reported
assisting
air
purification,
constructing
biofuel
cells,
marine
antibacterial
fouling
removal.
Finally,
current
challenges
future
trends
toward
proposed
discussed.
Plastics
are
ubiquitous
and
indispensable
in
our
daily
life
because
of
their
low
cost,
portability,
durability,
processability.
However,
due
to
the
overuse,
short
service
life,
chemical
inert
character,
accumulated
discarded
plastics
pose
a
great
threat
sustainable
development
ecology
environment.
Photocatalysis
represents
highly
promising
technology
transforming
plastic
wastes
into
value‐added
products
via
green
mild
method.
In
this
perspective,
advantages
photocatalysis
discussed
compared
with
other
catalysis
technologies
including
thermal
catalysis,
electrocatalysis,
enzyme
catalysis.
Then
possible
photocatalytic
upcycling
path
is
clarified
under
different
experimental
conditions.
The
types
that
can
be
upcycled
by
photocatalysis,
integrating
modus
between
photocatalysts
as
well
modulation
product
selectivity
also
emphasized.
Finally,
challenges
insights
future
waste
fields
presented.
It
expected
timely
critical
review
provides
instructive
guidance
for
design
high
efficiency
toward
upcycling.
Angewandte Chemie International Edition,
Год журнала:
2023,
Номер
62(27)
Опубликована: Май 5, 2023
Ascorbate
(H2
A)
is
a
well-known
antioxidant
to
protect
cellular
components
from
free
radical
damage
and
has
also
emerged
as
pro-oxidant
in
cancer
therapies.
However,
such
"contradictory"
mechanisms
underlying
H2
A
oxidation
are
not
well
understood.
Herein,
we
report
Fe
leaching
during
catalytic
using
an
Fe-N-C
nanozyme
ferritin
mimic
its
influence
on
the
selectivity
of
oxygen
reduction
reaction
(ORR).
Owing
heterogeneity,
Fe-Nx
sites
primarily
catalyzed
4
e-
ORR
via
iron-oxo
intermediate.
Nonetheless,
trace
O2
⋅-
produced
by
marginal
N-C
through
2
accumulated
attacked
sites,
leading
linear
leakage
unstable
ions
up
420
ppb
when
concentration
increased
mM.
As
result,
substantial
fraction
(ca.
40
%)
were
activated,
new
2+2
path
was
finally
enabled,
along
with
Fenton-type
oxidation.
Consequently,
after
diffused
into
bulk
solution,
at
stopped
production,
which
origin
effect
A.
