ACS Applied Nano Materials,
Год журнала:
2023,
Номер
6(11), С. 9236 - 9246
Опубликована: Май 29, 2023
Two-dimensional
(2D)
materials
have
been
found
to
work
efficiently
for
surface-enhanced
Raman
spectroscopy
(SERS)
owing
their
electronic
properties,
tunable
band
gap,
and
layered
structure
with
high
absorption
power.
In
this
work,
we
synthesized
different
morphologies
of
the
MoS2,
including
flower,
interconnected
nanoplates,
sheets,
by
facile
hydrothermal
method
explore
morphological
dependence
SERS
application.
The
substrate
prepared
nanoplate
morphology
MoS2
structures
shows
excellent
detection
up
10–9
M
concentration
rhodamine
B
(RhB)
dye.
RhB
dye
has
genotoxic
carcinogenic
effects
on
human
as
well
aquatic
life,
it
is
illegally
used
a
food
adulterant
despite
prohibition.
Thus,
sensitive
even
at
low
concentrations
highly
desired.
nanoplates
functionalized
Ag
nanoparticles
(NPs)
optimize
performance.
MoS2–Ag
nanocomposite
substrates
successfully
detect
an
ultralow
10–15
enhancement
factor
9.2
×
107.
A
charge
transfer
mechanism
between
molecules
proposed
along
contribution
NPs
in
detection.
Nanotechnology Science and Applications,
Год журнала:
2021,
Номер
Volume 14, С. 197 - 220
Опубликована: Ноя. 1, 2021
Abstract:
Graphene
and
graphene
oxide
have
become
the
base
of
many
advanced
biosensors
due
to
their
exceptional
characteristics.
However,
lack
some
properties,
such
as
inertness
in
organic
solutions
non-electrical
conductivity
oxide,
are
drawbacks
sensing
applications.
To
compensate
for
these
shortcomings,
various
methods
modifications
been
developed
provide
appropriate
properties
required
biosensing.
Efficient
modification
facilitates
interaction
biomolecules
with
surface,
ultimate
bioconjugate
can
be
employed
main
part
biosensors.
nanomaterials
transducers
increase
signal
response
Their
large
surface
area
perfect
biocompatibility
lots
prerequisite
a
stable
biosensor,
which
is
immobilization
bioreceptor
on
transducer.
Biosensor
development
has
paramount
importance
field
environmental
monitoring,
security,
defense,
food
safety
standards,
clinical
sector,
marine
biomedicine,
drug
discovery.
applications
also
prevalent
plant
biology
sector
find
missing
links
metabolic
process.
In
this
review,
oxygen
functional
groups
functionalizing
different
types
functionalization
will
explained.
Moreover,
(such
protein,
peptide,
DNA,
aptamer)
at
end,
application
biomaterials
transducing
mechanisms
discussed.
Keywords:
functionalization,
immobilization,
groups,
