ACS Sensors,
Год журнала:
2022,
Номер
7(9), С. 2750 - 2758
Опубликована: Сен. 13, 2022
As
a
marker
molecule
in
respiratory
gases
for
the
pulmonary
disease
asthma,
nitric
oxide
(NO)
has
attracted
much
attention
real-time
gas
monitoring.
However,
low
sensitivity,
poor
selectivity,
and
high
operating
temperature
limit
practical
applications
of
metal
semiconductor
(MOS)
based
chemiresistor
sensors.
Herein,
by
deliberately
introducing
metal-organic
frameworks
(MOFs)
free-standing
TiO2
nanochannels
(NCs),
sensor
with
excellent
detection
ability
outstanding
selective
traits
is
developed
sensing
NO
at
room
(RT).
The
precisely
engineered
Cu(II)-based
MOF
Cu-TCA
(H3TCA
=
tricarboxytriphenyl
amine)
induces
more
active
surface
NCs,
causing
buildup
CuTCA/TiO2
p-n
heterojunctions
that
improve
response
RT
just
via
simple
UV
irradiation
(λ
365
nm).
Importantly,
specialized
reductive
reaction
Cu(II)
enables
remarkable
selectivity
toward
analysis.
Owing
to
synergistic
large
chemical
sensitization
effects
from
Cu-TCA,
resulting
Cu-TCA/TiO2
NCs
show
performance;
i.e.,
((Rgas
-
Rair)/Rair)
reaches
124%
50
ppm
140
ppb
RT.
In
addition,
time
decreases
25.6%
if
system
subjected
irradiation.
as-formed
membrane
also
demonstrated
be
practically
effective
flexible
wearable
devices
quantitative
This
study
facilitates
use
MOFs
achieve
synergistically
enhanced
sensitivity
develop
high-performance
Chemical Society Reviews,
Год журнала:
2022,
Номер
51(3), С. 1045 - 1097
Опубликована: Янв. 1, 2022
This
review
illustrates
molecular-scale
confinement,
containment,
isolation,
and
related
concepts
to
present
MOF-centric
catalysts
realize
desired
chemical
transformations.
Materials Today Advances,
Год журнала:
2022,
Номер
17, С. 100340 - 100340
Опубликована: Дек. 27, 2022
The
environment
is
important
for
human
survival,
but
because
of
everyday
activities,
many
pollutants
in
the
drinking
water,
food
and
may
increasingly
contribute
to
problem
environmental
contamination
pose
a
significant
threat
health.
Therefore,
fast
effective
monitoring
compound
concentrations
samples
required.
Electrochemical
sensors
offer
huge
potential
online
specific
complex
environments,
owing
their
high
sensitivity,
good
selectivity,
low
cost,
simple
operation,
accuracy.
This
has
made
them
hot
topic.
Furthermore,
with
development
portable
electronic
technology,
electrochemical
sensing
system
miniaturization
booming
fields.
this
paper
systematically
reviews
variety
that
are
used
analysis
environment,
summarizes
current
research
direction.
expected
provide
researchers
new
ideas
perspectives.
Molecules,
Год журнала:
2022,
Номер
27(14), С. 4529 - 4529
Опубликована: Июль 15, 2022
Enzymatic
biocatalysis
is
a
sustainable
technology.
Enzymes
are
versatile
and
highly
efficient
biocatalysts,
have
been
widely
employed
due
to
their
biodegradable
nature.
However,
because
the
three-dimensional
structure
of
these
enzymes
predominantly
maintained
by
weaker
non-covalent
interactions,
external
conditions,
such
as
temperature
pH
variations,
well
presence
chemical
compounds,
can
modify
or
even
neutralize
biological
activity.
The
enablement
this
category
processes
result
several
advances
in
areas
molecular
biology
biotechnology
achieved
over
past
two
decades.
In
scenario,
metal–organic
frameworks
(MOFs)
highlighted
supports
for
enzyme
immobilization.
They
be
used
‘house’
specific
enzyme,
providing
it
with
protection
from
environmental
influences.
This
review
discusses
MOFs
structures;
emphasizes
synthesis
strategies,
properties,
applications;
explores
existing
methods
using
immobilization
various
enzymes;
lists
possible
modifications
combinations
other
compounds
formulate
ideal
given
application.
Abstract
Metal–organic
frameworks
(MOFs)
and
covalent
organic
(COFs)
hybrid
materials
are
a
class
of
porous
crystalline
that
integrate
MOFs
COFs
with
hierarchical
pore
structures.
As
an
emerging
frame
material
platform,
MOF/COF
have
attracted
tremendous
attention,
the
field
is
advancing
rapidly
extending
into
more
diverse
fields.
Extensive
studies
shown
broad
variety
different
structures
specific
properties
can
be
synthesized
from
building
blocks
via
chemical
reactions,
driving
rapid
growth
field.
The
allowed
complementary
utilization
π‐conjugated
skeletons
nanopores
for
functional
exploration
has
endowed
these
great
potential
in
challenging
energy
environmental
issues.
It
necessary
to
prepare
“family
tree”
accurately
trace
developments
study
materials.
This
review
comprehensively
summarizes
latest
achievements
advancements
design
synthesis
materials,
including
covalently
bonded
surface
groups
(MOF@COF),
grown
on
(COF@MOF),
bridge
reaction
between
COF
MOF
(MOF+COF),
their
various
applications
catalysis,
storage,
pollutant
adsorption,
gas
separation,
sensing,
biomedicine.
concludes
remarks
concerning
trend
structural
Abstract
Nanozymes,
as
innovative
materials,
have
demonstrated
remarkable
potential
in
the
field
of
electrochemical
biosensors.
This
article
provides
an
overview
mechanisms
and
extensive
practical
applications
nanozymes
First,
definition
characteristics
are
introduced,
emphasizing
their
significant
role
constructing
efficient
sensors.
Subsequently,
several
common
categories
nanozyme
materials
delved
into,
including
metal‐based,
carbon‐based,
metal‐organic
framework,
layered
double
hydroxide
nanostructures,
discussing
Regarding
mechanisms,
two
key
roles
particularly
focused
biosensors:
selective
enhancement
signal
amplification,
which
crucially
support
sensor
performance.
In
terms
applications,
widespread
use
nanozyme‐based
biosensors
showcased
various
domains.
From
detecting
biomolecules,
pollutants,
nucleic
acids,
proteins,
to
cells,
providing
robust
means
for
high‐sensitivity
detection.
Furthermore,
insights
into
future
development
is
provided,
encompassing
improvements
optimizations
design
integration,
expansion
application
fields
through
interdisciplinary
collaboration.
conclusion,
this
systematically
presents
biosensors,
offering
valuable
references
prospects
research
field.
Chemical Society Reviews,
Год журнала:
2023,
Номер
52(18), С. 6270 - 6293
Опубликована: Янв. 1, 2023
This
tutorial
review
highlights
the
role
of
detection
probes
modified
on
outer-surface
nanochannels
in
enhancing
sensitivity,
broadening
range
detectable
biomarkers,
and
clarifying
underlying
mechanism.
Angewandte Chemie International Edition,
Год журнала:
2023,
Номер
62(23)
Опубликована: Апрель 6, 2023
Abstract
Selecting
a
suitable
support
material
for
enzyme
immobilization
with
excellent
biocatalytic
activity
and
stability
is
critical
aspect
in
the
development
of
functional
biosystems.
The
highly
stable
metal‐free
properties
covalent‐organic
frameworks
(COFs)
make
them
ideal
supports
immobilization.
Herein,
we
constructed
three
kinds
COFs
via
biofriendly
one‐pot
synthetic
strategy
at
room
temperature
aqueous
solution.
Among
developed
(COF‐LZU1,
RT‐COF‐1
ACOF‐1),
horseradish
peroxidase
(HRP)‐incorporated
COF‐LZU1
found
to
retain
highest
activity.
Structural
analysis
reveals
that
weakest
interaction
between
hydrated
COF‐LZU1,
an
easiest
accessibility
by
substrate,
as
well
optimal
conformation
together
promote
bioactivity
HRP‐COF‐LZU1.
Furthermore,
revealed
be
versatile
nanoplatform
encapsulating
multiple
enzymes.
also
offers
superior
protection
immobilized
enzymes
under
harsh
conditions
during
recycling.
comprehensive
understanding
interfacial
interactions
COF
host
guest,
substrate
diffusion,
alteration
within
matrices
represents
opportunity
design
biocatalysts
opens
broad
range
applications
these
nanosystems.
