A contemporary overview on quantum dots-based fluorescent biosensors: Exploring synthesis techniques, sensing mechanism and applications
Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy,
Год журнала:
2025,
Номер
335, С. 126002 - 126002
Опубликована: Март 7, 2025
Язык: Английский
High-Sensitivity Zinc-Based Surface Plasmon Resonance Biosensor for SARS-CoV-2 Detection Using Kretschmann Configuration
Plasmonics,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 31, 2025
Язык: Английский
SARS-CoV-2 detection by surface plasmon resonance biosensors based on graphene-multilayer structures
Frontiers in Physics,
Год журнала:
2024,
Номер
12
Опубликована: Дек. 20, 2024
The
COVID-19
pandemic
has
created
a
demanding
need
for
fast,
sensitive,
and
reliable
diagnostic
methods
to
identify
viral
infections
like
SARS-CoV-2.
In
response,
surface
plasmon
resonance
(SPR)
biosensors
have
emerged
as
effective
tools
detecting
biomolecules.
This
theoretical
study
focuses
on
designing
refining
multilayer
SPR
biosensor
configuration
ensure
high
sensitivity
stability.
optimized
consists
of
thin
silver
layer,
silicon
nitride
single
graphene
ssDNA
bioreceptor
each
tailored
improve
the
effectiveness
proposed
biosensor.
capability
detect
SARS-CoV-2
is
assessed
by
analyzing
its
specifically
examining
variations
in
angle,
attenuation,
full
width
at
half
maximum,
across
range
concentrations.
Additionally,
this
evaluated
performance
metrics
such
refractive
index
sensitivity,
detection
accuracy,
quality
factor
determine
against
Then,
work
establishes
basis
further
development
aimed
various
biomolecular
targets,
supporting
advances
biosensing
technology
creation
address
current
future
health
challenges.
Язык: Английский
Widening of Dynamic Detection Range in Real-Time Angular-Interrogation Surface Plasmon Resonance Biosensor Based on Anisotropic Van Der Waals Heterojunction
Biosensors,
Год журнала:
2024,
Номер
14(12), С. 601 - 601
Опубликована: Дек. 8, 2024
Surface
plasmon
resonance
(SPR)
biosensors
have
experienced
rapid
development
in
recent
years
and
been
widely
applied
various
fields.
Angular-interrogation
SPR
play
an
important
role
the
field
of
biological
detection
due
to
their
advantages
reliable
results
high
stability.
However,
angular-interrogation
also
suffer
from
low
sensitivity,
poor
real-time
performance,
limited
dynamic
range,
which
seriously
restricts
application
promotion.
Therefore,
we
designed
biosensor
based
on
black
phosphorus
(BP)/graphene
two-dimensional
(2D)
van
der
Waals
heterojunction
(vdWhs).
On
basis
using
angle-fixed
method,
this
not
only
has
good
performance
but
sensitivity
enhancement.
The
optical
anisotropy
characteristic
BP
is
used
widen
range
biosensors.
simulation
show
that
maximum
proposed
258.6
deg/RIU.
Compared
with
bare-Ag
film
structure
biosensor,
was
enhanced
by
209.2%
2D
vdWhs.
use
anisotropic
material
can
enhance
range.
When
fixed
incident
angle
Язык: Английский