ACS Applied Nano Materials,
Год журнала:
2023,
Номер
7(1), С. 1388 - 1401
Опубликована: Дек. 18, 2023
Hybrid
nanomaterials
with
distinct
properties
and
morphologies
when
clubbed
within
a
sensor
matrix
can
generate
synergistic
effect
on
molecular
sensing.
In
this
work,
creation
of
such
nanohybrid
platform
has
been
attempted
for
rapid
detection
hydrogen
peroxide
(H2O2),
which
tremendous
role
in
area
medical
diagnostics.
Conventionally,
the
peroxidase
(POD)
enzyme
catalyzes
H2O2;
however,
it
is
prone
to
inherent
chemical
thermal
instabilities
reducing
overall
stability
shelf
life
probe.
A
possible
solution
problem
work
where
nonenzymatic
mimic
probe
comprising
gold
nanodendrites
(AuND),
nickel
metal
organic
framework
(Ni-MOF),
hydrazine
synergistically
deployed
H2O2.
The
developed
rigorously
characterized
through
various
characterization
techniques,
including
scanning
microscopy
(SPM),
electron
(SEM),
energy
dispersive
X-ray
analysis
(EDX-mapping),
Fourier
transform
infrared
spectroscopy
(FTIR),
diffraction
(XRD),
photoelectron
(XPS),
cyclic
voltammetry
(CV),
electrochemical
impedance
(EIS).
demonstrated
impressive
analytical
performance,
possessing
linear
dynamic
range
(LDR)
between
1
×
10–8
M
10–15
limit
(LOD)
0.34
(±0.05)
M.
probe's
average
response
time
changing
H2O2
concentrations
was
5.02
±
0.42
s,
making
an
agile
sensing
detection.
displayed
minimal
toward
interferants
as
superoxide
radicals,
ascorbic
acid,
cysteine,
glucose,
alanine,
citric
usually
coexist
real
sample
matrix.
order
investigate
real-life
applicability
probe,
involving
synthetic
serum
adopted,
yielded
current
recovery
90.20
94.14%.
fabrication
on-chip
synthesis
procedure
are
facile,
robust
efficient
free
radicals
clinical
settings.
Biosensors,
Год журнала:
2023,
Номер
13(3), С. 347 - 347
Опубликована: Март 4, 2023
Establishing
enzyme-free
sensing
assays
with
great
selectivity
and
sensitivity
for
glucose
H2O2
detection
has
been
highly
required
in
biological
science.
In
particular,
the
exploitation
of
nanomaterials
by
using
noble
metals
high
conductivity
surface
area
widely
investigated
to
act
as
selective
catalytic
agents
molecular
recognition
platforms.
Several
approaches
a
straightforward,
speedy,
selective,
sensitive
were
requested.
This
paper
reviews
current
progress
electrochemical
metal–organic
frameworks
(MOFs)
recognition.
We
have
reviewed
latest
in-place
priorities
including
straightforward
procedure
manipulation,
sensitivity,
varied
linear
range,
economic
prospects.
The
mentioned
apply
systems
through
rapid
time
that
enables
real-time
profitable
fields,
obstacles
associated
sample
preparation
tool
expense
can
be
solved
applying
these
means.
Some
parameters,
impedance,
intensity,
potential
difference
measurement
methods
permitted
low
limit
detections
(LODs)
noticeable
durations
agricultural,
water,
foodstuff
samples
levels
H2O2.
Physics in Medicine,
Год журнала:
2022,
Номер
14, С. 100054 - 100054
Опубликована: Сен. 26, 2022
Nickel-based
catalysts
are
currently
the
subject
of
intensive
study
in
search
for
novel
electrode
materials
non-enzymatic
glucose
sensing.
Their
strong
activity
towards
electrooxidation
and
intrinsic
resistance
to
chloride
poisoning
makes
these
ideal
candidates
development
affordable
stable
sensors.
In
this
review,
mechanism
at
Ni
electrodes
is
described,
clarifying
effect
different
phases
on
their
catalytic
activity.
Moreover,
a
brief
background
provided,
supplemented
by
computational
studies.
Furthermore,
article
details
most
intriguing
compounds
(selenides,
sulfides,
nitrates)
analytical
performance
respective
Additional
focus
points
work
multimetallic
nanosystems
where
component,
growing
field
conductive
metal
organic
frameworks
with
centers.
This
review
will
be
beneficial
researchers
who
aim
delving
deeper
into
potential
Ni-based
Biosensors,
Год журнала:
2023,
Номер
13(5), С. 508 - 508
Опубликована: Апрель 28, 2023
Rapid
and
accurate
detection
of
changes
in
glucose
(Glu)
hydrogen
peroxide
(H2O2)
concentrations
is
essential
for
the
predictive
diagnosis
diseases.
Electrochemical
biosensors
exhibiting
high
sensitivity,
reliable
selectivity,
rapid
response
provide
an
advantageous
promising
solution.
A
porous
two-dimensional
conductive
metal-organic
framework
(cMOF),
Ni-HHTP
(HHTP
=
2,3,6,7,10,11-hexahydroxytriphenylene),
was
prepared
by
using
a
one-pot
method.
Subsequently,
it
employed
to
construct
enzyme-free
paper-based
electrochemical
sensors
applying
mass-producing
screen-printing
inkjet-printing
techniques.
These
effectively
determined
Glu
H2O2
concentrations,
achieving
low
limits
1.30
μM
2.13
μM,
sensitivities
5573.21
μA
μM-1
cm-2
179.85
cm-2,
respectively.
More
importantly,
Ni-HHTP-based
showed
ability
analyze
real
biological
samples
successfully
distinguishing
human
serum
from
artificial
sweat
samples.
This
work
provides
new
perspective
use
cMOFs
field
sensing,
highlighting
their
potential
future
applications
design
development
multifunctional
high-performance
flexible
electronic
sensors.
Molecules,
Год журнала:
2023,
Номер
28(13), С. 4891 - 4891
Опубликована: Июнь 21, 2023
In
recent
years,
substantial
advancements
have
been
made
in
the
development
of
enzyme-free
glucose
sensors
utilizing
pristine
metal-organic
frameworks
(MOFs)
and
their
combinations.
This
paper
provides
a
comprehensive
exploration
various
MOF-based
sensors,
encompassing
monometallic
MOF
as
well
multi-metal
These
approaches
demonstrate
improved
detection
capabilities,
facilitated
by
augmented
surface
area
availability
active
sites
within
structures.
Furthermore,
delves
into
application
complexes
derivatives
sensing.
Derivatives
incorporating
carbon
or
metal
components,
such
cloth
synthesis,
rGO-MOF
composites,
core–shell
structures
noble
metals,
exhibit
enhanced
electrochemical
performance.
Additionally,
integration
MOFs
with
foams
biomolecules,
porphyrins,
enhances
electrocatalytic
properties
for
detection.
Finally,
this
concludes
an
outlook
on
future
prospects
sensors.
Advanced Sensor and Energy Materials,
Год журнала:
2023,
Номер
2(2), С. 100053 - 100053
Опубликована: Март 8, 2023
Metal-organic
frameworks
(MOFs)
are
porous
materials,
which
possess
a
large
specific
surface
area,
various
coordination
types
and
modes,
versatile
adaptable
morphologies
characteristics.
MOFs
have
drawn
much
interest
recently
because
of
their
appealing
structure
potential
for
extensive
use.
With
excellent
characteristics,
including
high
sensitivity,
low
detection
limit,
robust
stability,
nickel
(Ni)-based
several
benefits
in
electrochemical
sensing.
However,
the
weak
conductivity
pure
Ni-based
limits
applications.
It
is
essential
to
further
improve
characteristics
enhance
electrical
aiming
at
enhancing
performance
Herein,
three
preparation
methods
introduced,
then
most
recent
advancements
sensing
applications
detailed
this
work.
In
addition,
it
described
how
adapt
ways.
introduction
these
processes,
structures
prepared
or
modified
MOF
also
described.
envisaged
that
work
may
give
some
extending
techniques
future
research
materials
burgeoning
sector.
ACS Applied Materials & Interfaces,
Год журнала:
2024,
Номер
16(14), С. 17219 - 17231
Опубликована: Апрель 2, 2024
Herein,
we
demonstrate
the
detection
of
glucose
in
a
noninvasive
and
nonenzymatic
manner
by
utilizing
an
extended
gate
field-effect
transistor
(EGFET)
based
on
organic
molecule
pyrene
phosphonic
acid
(PyP4OH8)
incorporated
nickel
metal–organic
framework
(NiOM-MOF).
The
prepared
electrode
responds
selectively
to
instead
sucrose,
fructose,
maltose,
ascorbic
acid,
uric
1×
phosphate
buffer
saline
solution.
Also,
scanning
Kelvin
probe
system,
sensing
electrode's
work
function
(Φ)
is
measured
validate
glucose-sensing
mechanism.
sensitivity,
range,
response
time,
limit
detection,
quantification
are
determined
be
24.5
μA
mM–1
cm–2,
20
μM
10
mM,
less
than
5
s,
2.73
μM,
8.27
respectively.
Most
interestingly,
developed
follows
Michaelis–Menten
kinetics,
calculated
rate
constant
(km)
0.07
mM
indicates
higher
affinity
NiOM-MOF
toward
glucose.
real-time
analysis
has
revealed
that
sensitive
detect
real
human
saliva,
it
can
alternative
device
for
Overall,
outcomes
EGFET
studies
electrodes
well-suited
expeditious
levels
saliva.
