International Journal of Electrochemical Science,
Год журнала:
2024,
Номер
19(8), С. 100658 - 100658
Опубликована: Май 22, 2024
Conductive
polymer-based
gas
sensors
are
frequently
utilized
because
of
their
benefits,
which
include
affordability,
good
selectivity,
and
room-temperature
detection.
However,
they
still
limited
by
low
sensitivity,
high
detection
limit,
slow
response-recovery
speed.
In
this
study,
a
hollow
flower-shaped
composite
gas-sensing
material
was
designed.
MXene
microspheres
formed
electrostatic
adsorption
using
Polymethyl
Methacrylate
(PMMA)
as
template
were
used
substrates,
SnS2
nanosheets
produced
hydrothermally
on
the
microsphere
surface
to
form
gas-sensitive
materials.
After
calcination
remove
template,
polyaniline
(PANI)
coated
onto
each
nanosheet
via
in
situ
polymerization.
The
synthesized
MXene@SnS2@PANI
nanoflowering
composites
exhibited
an
extremely
responsiveness
ammonia
at
25
°C,
limits,
unique
selectivity
towards
gas.
When
exposed
100
ppm
NH3
°C
45%
relative
humidity
(RH),
MSP-100
sensor's
reaction
reached
119.76%,
five
times
that
PANI.
Notably,
range
0%–90%
RH,
based
grew
rose,
reaching
peak
response
215.18%
90%
RH.
addition,
sensor
had
limit
1.557
prominent
indicating
its
promising
application
Optics Express,
Год журнала:
2023,
Номер
31(3), С. 4783 - 4783
Опубликована: Янв. 13, 2023
In
this
work,
authors
have
developed
a
portable,
sensitive,
and
quick-response
fiber
optic
sensor
that
is
capable
of
detection
Aflatoxins
B1
(AFB1)
quantitatively
qualitatively.
Using
multi-mode
(MMF)
multi-core
(MCF),
the
MMF-MCF-MCF-MMF
structure
based
on
symmetric
transverse
offset
splicing
waist-expanded
taper
fabricated.
The
evanescent
waves
are
enhanced
to
form
strong
field
by
etching
surface
with
hydrofluoric
acid.
To
successfully
excite
localized
plasmon
resonance
phenomenon,
gold
nanoparticles
deposited
optical
probe's
surface.
Further,
modify
probes,
Niobium
carbide
(Nb2CTx)
MXene
AFB1
antibodies
functionalized.
Nb2CTx
employed
strengthen
biocompatibility
increase
specific
area
probe,
while
antibody
used
identify
micro-biomolecules
in
manner.
reproducibility,
reusability,
stability,
selectivity
proposed
probe
tested
validated
using
various
concentration
solutions.
Finally,
linear
range,
sensitivity,
limit
sensing
determined
as
0
-
1000
nM,
11.7
nm/µM,
26.41
respectively.
offers
an
indispensable
technique,
low-cost
solution
portability
for
AFB1-specific
agricultural
products
their
byproducts
its
novel
superior
detecting
capability.
It
also
useful
marine
species
like
fish
consequently
affecting
health
human
body.
RSC Advances,
Год журнала:
2022,
Номер
12(30), С. 19590 - 19610
Опубликована: Янв. 1, 2022
Two-dimensional
materials
have
unique
properties
and
their
better
functionality
has
created
new
paradigms
in
the
field
of
sensing.
Over
past
decade,
a
family
2D
known
as
MXenes
emerged
promising
material
for
numerous
applications,
including
biosensing.
Their
metallic
conductivity,
rich
surface
chemistry,
hydrophilicity,
good
biocompatibility,
high
anchoring
capacity
biomaterials
make
them
an
attractive
candidate
to
detect
variety
analytes.
Despite
such
notable
properties,
there
are
certain
limitations
associated
with
them.
This
review
aims
present
detailed
survey
MXene's
synthesis;
particular,
superiority
biosensing
compared
other
is
addressed.
low
oxidative
stability
still
open
challenge,
recent
investigations
on
oxidation
summarized.
The
hexagonal
stacking
network
acts
distinctive
matrix
load
nanoparticles,
embedded
nanoparticles
can
bind
excess
number
biomolecules
(
Abstract
Sensing
devices
are
key
nodes
for
information
detection,
processing,
and
conversion
widely
applied
in
different
fields
such
as
industrial
production,
environmental
monitoring,
defense.
However,
increasing
demand
of
these
has
complicated
the
application
scenarios
diversified
detection
targets
thereby
promoting
continuous
development
sensing
materials
methods.
In
recent
years,
Ti
n+1
C
n
T
x
(
=
1,
2,
3)
MXenes
with
outstanding
optical,
electrical,
thermal,
mechanical
properties
have
been
developed
ideal
candidates
to
apply
physical,
chemical,
biological
fields.
this
review,
depending
on
optical
electrical
signals,
we
systematically
summarize
nine
categories
sensors
strain,
gas,
fluorescence
sensors.
The
excellent
allow
its
further
emerging
intelligent
bionic
devices,
including
smart
flexible
E-skin,
neural
network
coding
learning,
soft
robot,
well
artificial
eardrum,
which
all
discussed
briefly
review.
Finally,
present
a
positive
outlook
potential
future
challenges
perspectives
MXene-based
shown
vigorous
momentum
applications
can
drive
an
number
new
technologies.
Materials Chemistry Frontiers,
Год журнала:
2023,
Номер
7(22), С. 5519 - 5544
Опубликована: Янв. 1, 2023
Fabrication
of
MXene-based
nanocomposites.
Photocatalytic
properties
membranes
for
the
separation
toxic
pollutants,
such
as
antibiotic
drugs,
dyes,
etc
.
nanocomposites
absorbents
heavy
metal
removal.
IEEE Sensors Journal,
Год журнала:
2023,
Номер
23(19), С. 22533 - 22542
Опубликована: Авг. 18, 2023
In
this
work,
a
combination
of
simulation
and
experiment
is
used
to
analyze
the
distribution
evanescent
field
in
W-shaped
optical
fiber.
A
novel
flexible
fiber
(FWOF)
biosensor
based
on
localized
surface
plasmon
resonance
(LSPR)
effect
(also
known
as
WaveFlex
biosensor)
designed
fabricated
for
detecting
histamine
food.
First,
gold
nanoparticles
(AuNPs)
are
immobilized
FWOF
probe's
excite
LSPR
effect.
Second,
niobium
carbide
(Nb
$_{{{2}}}$
CT
notation="LaTeX">$_{\mathrm
{x}}$
)
MXene
molybdenum
disulfide
(MoS
-NPs)
sensing
area
probe
improve
reaction
area.
larger
can
offer
more
immobilization
sites
biomolecules.
Meanwhile,
enhance
specificity
probe,
diamine
oxidase
(DAO)
enzyme
functionalized
nanomaterials
(NMs)-immobilized
probe.
The
absorption
spectrum
microscopic
characterized
measured
using
an
ultraviolet-visible
(UV-Vis)
spectrophotometer
high-resolution
transmission
electron
microscope.
results
NMs
verified
by
scanning
microscopy.
order
further
explore
performance
sensor,
pH
testing,
stability
reproducibility,
repeatability,
testing
also
carried
out.
proposed
sensor
has
linear
detection
range
0–
notation="LaTeX">$1000
~\mu
\text{M}$
,
limit
notation="LaTeX">$52.5
sensitivity
4.4
pm/
notation="LaTeX">$\mu
.
Micromachines,
Год журнала:
2023,
Номер
14(2), С. 247 - 247
Опубликована: Янв. 18, 2023
The
first
two-dimensional
(2D)
substance
sparked
a
boom
in
research
since
this
type
of
material
showed
potential
promise
for
applications
field
sensors.
A
class
2D
transition
metal
nitrides,
carbides,
and
carbonitrides
are
referred
to
as
MXenes.
Following
the
2011
synthesis
Ti3C2
from
Ti3AlC2,
much
has
been
published.
Since
these
materials
have
several
advantages
over
conventional
materials,
they
extensively
researched,
synthesized,
studied
by
many
organizations.
To
give
readers
general
understanding
well-liked
review
examines
structures
MXenes,
discusses
various
procedures,
analyzes
physicochemistry
properties,
particularly
optical,
electronic,
structural,
mechanical
properties.
focus
is
analysis
modern
advancements
development
MXene-based
sensors,
including
electrochemical
gas
biosensors,
optical
wearable
Finally,
opportunities
challenges
further
study
on
creation
MXenes-based
sensors
discussed.
Progress in Materials Science,
Год журнала:
2023,
Номер
139, С. 101166 - 101166
Опубликована: Июль 22, 2023
Since
2011,
2D
transition
metal
carbides,
carbonitrides
and
nitrides
known
as
MXenes
have
gained
huge
attention
due
to
their
attractive
chemical
electronic
properties.
The
diverse
functionalities
of
make
them
a
promising
candidate
for
multitude
applications.
Recently,
doping
MXene
with
metallic
non-metallic
elements
has
emerged
an
exciting
new
approach
endow
properties
this
systems,
opening
paradigm
theoretical
experimental
studies.
In
review,
we
present
comprehensive
overview
on
the
recent
progress
in
emerging
field
doped
MXenes.
We
compare
different
strategies;
techniques
used
characterization
discuss
enhanced
distinct
advantages
applications
such
electrocatalysis,
energy
storage,
photovoltaics,
electronics,
photonics,
environmental
remediation,
sensors,
biomedical
is
elaborated.
Additionally,
developments
photovoltaics
electronics
are
explored
provide
prospect
into
specific
along
underlying
mechanisms.
Lastly,
challenges
take
forward
thriving
field.