Advanced Materials,
Journal Year:
2023,
Volume and Issue:
36(11)
Published: Nov. 30, 2023
Abstract
The
concept
of
a
quasi‐bound
state
in
continuum
(QBIC)
has
garnered
significant
attention
various
fields
such
as
sensing,
communication,
and
optical
switching.
Within
metasurfaces,
QBICs
offer
reliable
platform
that
enables
sensing
capabilities
through
potent
interactions
between
local
electric
matter.
Herein,
novel
terahertz
(THz)
biosensor
based
on
the
integration
QBIC
with
graphene
is
reported,
which
multidimensional
detection.
proposed
distinctive
because
its
ability
to
discern
concentrations
ethanol
N‐methylpyrrolidone
wide
range
from
100%
0%,
by
monitoring
changes
resonance
intensity
maximum
wavelet
coefficient.
This
approach
demonstrates
an
excellent
linear
fit,
ensures
robust
quantitative
analysis.
remarkable
sensitivity
our
it
detect
minute
low‐concentration
solutions,
lowest
detection
concentration
value
(LDCV)
0.21
pg
mL
−1
.
2D
coefficient
cards
are
effectively
constructed
continuous
transforms,
presents
more
accurate
for
determining
solution.
Ultimately,
offers
host
advantages,
including
heightened
reusability.
pioneering
establishes
new
avenue
liquid‐based
biosensing.
Biosensors,
Journal Year:
2022,
Volume and Issue:
12(1), P. 42 - 42
Published: Jan. 14, 2022
The
increasing
use
of
nanomaterials
and
scalable,
high-yield
nanofabrication
process
are
revolutionizing
the
development
novel
biosensors.
Over
past
decades,
researches
on
nanotechnology-mediated
biosensing
have
been
forefront
due
to
their
potential
application
in
healthcare,
pharmaceutical,
cell
diagnosis,
drug
delivery,
water
air
quality
monitoring.
advancement
nanoscale
science
relies
a
better
understanding
theory,
manufacturing
fabrication
practices,
specific
methods.
topology
tunable
properties
nanoparticles,
part
science,
can
be
changed
by
different
processes,
which
separate
them
from
bulk
counterparts.
In
recent
past,
nanostructures,
such
as
nanosphere,
nanorods,
nanofiber,
core-shell
nanotubes,
thin
films,
exploited
enhance
detectability
labelled
or
label-free
biological
molecules
with
high
accuracy.
Furthermore,
these
engineered-materials-associated
transducing
devices,
e.g.,
optical
waveguides
metasurface-based
scattering
media,
widened
horizon
biosensors
over
broad
wavelength
range
deep-ultraviolet
far-infrared.
This
review
provides
comprehensive
overview
major
scientific
achievements
nano-biosensors
based
fiber,
terahertz-domain
refractometric,
nano-biosensors.
Nanophotonics,
Journal Year:
2022,
Volume and Issue:
11(6), P. 1219 - 1230
Published: Feb. 2, 2022
Biosensors
based
on
terahertz
(THz)
metasurfaces
have
recently
attracted
widespread
attention.
However,
few
been
reported
so
far
because
it
is
a
challenge
to
achieve
ultrasensitive
multidimensional
detection
in
the
THz
spectrum.
Here,
we
propose
novel
biosensor
that
consists
of
and
metal
oxide
semiconductor-like
structure
(MOSLS),
which
patterned
graphene-polyimide-perovskite.
We
varied
photoconductivity
MOSLS
via
electrostatic
doping
effect.
The
could
detect
whey
protein
down
concentration
limit
6.25
ng/mL.
Significant
responses
frequency,
phase,
transmission
amplitude
were
all
detected
for
different
concentrations.
value
difference,
frequency
shift,
phase
difference
increased
with
protein,
clearly
demonstrating
biosensing.
Moreover,
by
applying
lasers
wavelengths,
realized
reversible
biosensing
region
first
time.
These
results
are
very
promising
applications
field
Microsystems & Nanoengineering,
Journal Year:
2022,
Volume and Issue:
8(1)
Published: June 6, 2022
Abstract
Passive
and
label-free
microfluidic
devices
have
no
complex
external
accessories
or
detection-interfering
label
particles.
These
are
now
widely
used
in
medical
bioresearch
applications,
including
cell
focusing
separation.
Geometric
structure
plays
the
most
essential
role
when
designing
a
passive
chip.
An
exquisitely
designed
geometric
can
change
particle
trajectories
improve
chip
performance.
However,
design
principles
of
microfluidics
not
been
comprehensively
acknowledged.
Here,
we
review
innovations
several
schemes,
deterministic
lateral
displacement
(DLD),
inertial
(IMF),
viscoelastic
(VEM),
summarize
creative
microfluidics.
We
aim
to
provide
guideline
for
researchers
who
an
interest
Photonics Research,
Journal Year:
2023,
Volume and Issue:
11(5), P. 858 - 858
Published: March 8, 2023
Integrating
novel
materials
is
critical
for
the
ultrasensitive,
multi-dimensional
detection
of
biomolecules
in
terahertz
(THz)
range.
Few
studies
on
THz
biosensors
have
used
semiconductive
active
layers
with
tunable
energy
band
structures.
In
this
study,
we
demonstrate
three
detecting
casein
molecules
based
hybridization
metasurface
graphitic
carbon
nitride,
graphene,
and
heterojunction.
We
achieved
low-concentration
a
3.54
ng/mL
limit
sensing
by
observing
degrees
variations
(frequency
shift,
transmission
difference,
phase
difference).
The
favorable
effect
conductivity
layer
can
be
to
explain
internal
mechanism.
incorporation
protein
changes
carrier
concentration
surface
semiconductor
via
electrostatic
doping
as
positively
charged
grows,
which
alters
structure
layer.
measured
results
indicate
that
any
distinguished
directly
resonance
frequency,
value,
difference.
With
heterojunction,
biosensor
showed
highest
response
among
biosensors.
Silvaco
Atlas
package
was
simulate
samples’
transport
benefits
heterojunction
sensor.
simulation
validated
our
proposed
theoretical
mechanism
model.
Our
could
provide
approach
metasurface-based
ultrasensitive
biosensing
technologies.
