Optics Letters,
Journal Year:
2025,
Volume and Issue:
50(6), P. 1803 - 1803
Published: Feb. 18, 2025
It
is
important
to
monitor
refractive
index
(RI)
and
temperature
(T)
simultaneously
for
photo-thermal
therapy
(PTT)
in
the
blood
circulation
system.
However,
fluctuation
of
T
sways
RI
response
owing
high
cross-sensitivity.
To
address
issue,
a
fiber-optic-based
localized
surface
plasmon
resonance
(LSPR)
sensor
with
cascaded
structure
single-mode
fiber-multimode
fiber-single-mode
fiber
(SMF-MMF-SMF)
presented
synchronous
measurement
T.
This
detection
principle
founded
on
synergistic
effects
Mach-Zehnder
interference
(MZI)
LSPR.
The
was
fabricated
inspire
MZI,
while
LSPR
excited
by
gold
nanoparticles/polydopamine
(AuNPs/PDA)
deposited
surface.
MZI
spectra
were
extracted
reconstructed
using
spectrum
transformation
filtering
techniques
sort
original
spectra.
achieved
simultaneous
sensitivity
3.58
(a.u.)/RIU
-0.0011
(a.u.)/°C,
respectively.
Additionally,
signals
near
wavelength
absorption
are
used
replace
signal.
Compared
signal,
signal
exhibited
over
30
times
enhancement
figure
merit
(FOM)
value
due
its
narrow
full
width
at
half
maxima
(FWHM).
provided
novel
strategy
T,
making
it
promising
alternative
vivo
therapy.
Abstract
Early
lung
cancer
screening
by
computed
tomography
is
hampered
pulmonary
nodules
caused
massive
COVID‐19
infections,
necessitating
an
ultrasensitive
approach
for
the
early
diagnosis
of
cancers
at
single‐base
level
from
circular
tumor
DNAs
(ctDNAs).
This
study
introduces
that
merges
DNA
origami
and
scissors
technologies
in
a
framework
surface
plasmon
resonance
(SPR)
biosensors.
By
combining
precision
probes
with
inherent
resolution
scissors,
this
method
systematically
addresses
limitations
conventional
SPR
techniques,
resulting
enhanced
detection
accuracy.
The
synergistic
interplay
between
enables
biosensors
to
achieve
unprecedented
levels
sensitivity,
precision,
practical
utility.
efficacy
allows
precise
identification
mutations,
demonstrated
here
T790M
mutation
EGFR
gene
G12C
KRAS
non‐small
cell
patients.
With
technique,
as
well
near
zeptomolar‐level
sensitivity
achieved.
As
result,
discovery
holds
significant
potential
advance
field
diagnostics.
Nature Communications,
Journal Year:
2024,
Volume and Issue:
15(1)
Published: April 16, 2024
Abstract
The
emerging
monkeypox
virus
(MPXV)
has
raised
global
health
concern,
thereby
highlighting
the
need
for
rapid,
sensitive,
and
easy-to-use
diagnostics.
Here,
we
develop
a
single-step
CRISPR-based
diagnostic
platform,
termed
SCOPE
(Streamlined
CRISPR
On
Pod
Evaluation
platform),
field-deployable
ultrasensitive
detection
of
MPXV
in
resource-limited
settings.
viral
nucleic
acids
are
rapidly
released
from
rash
fluid
swab,
oral
saliva,
urine
samples
2
min
via
streamlined
lysis
protocol,
followed
by
10-min
recombinase
polymerase
amplification
(RPA)-CRISPR/Cas13a
reaction.
A
pod-shaped
vest-pocket
analysis
device
achieves
whole
process
reaction
execution,
signal
acquisition,
result
interpretation.
can
detect
as
low
0.5
copies/µL
(2.5
copies/reaction)
within
15
sample
input
to
answer.
We
validate
developed
assay
on
102
clinical
male
patients
/
volunteers,
testing
results
100%
concordant
with
real-time
PCR.
single-molecular
level
sensitivity
minutes
simplified
procedure
performed
miniaturized
wireless
device,
which
is
expected
spur
substantial
progress
enable
practice
application
diagnostics
techniques
point-of-care
setting.
ACS Sensors,
Journal Year:
2024,
Volume and Issue:
9(4), P. 1706 - 1734
Published: April 2, 2024
The
development
of
advanced
technologies
for
the
fabrication
functional
nanomaterials,
nanostructures,
and
devices
has
facilitated
biosensors
analyses.
Two-dimensional
(2D)
with
unique
hierarchical
structures,
a
high
surface
area,
ability
to
be
functionalized
target
detection
at
surface,
exhibit
potential
biosensing
applications.
electronic
properties,
mechanical
flexibility,
optical,
electrochemical,
physical
properties
2D
nanomaterials
can
easily
modulated,
enabling
construction
platforms
various
analytes
targeted
recognition,
sensitivity,
selectivity.
This
review
provides
an
overview
recent
advances
in
nanostructures
used
biosensor
wearable-sensor
healthcare
health-monitoring
Finally,
advantages
2D-nanomaterial-based
several
challenges
their
optimal
operation
have
been
discussed
facilitate
smart
high-performance
future.
ACS Biomaterials Science & Engineering,
Journal Year:
2024,
Volume and Issue:
10(5), P. 2703 - 2724
Published: April 22, 2024
The
scientific
world
is
increasingly
focusing
on
rare
earth
metal
oxide
nanomaterials
due
to
their
consequential
biological
prospects,
navigated
by
breakthroughs
in
biomedical
applications.
Terbium
belongs
elements
(lanthanide
series)
and
possesses
remarkably
strong
luminescence
at
lower
energy
emission
signal
transduction
properties,
ushering
wide
applications
for
diagnostic
measurements
(i.e.,
bioimaging,
biosensors,
fluorescence
imaging,
etc.)
the
sectors.
In
addition,
theranostic
of
terbium-based
nanoparticles
further
permit
targeted
delivery
drugs
specific
site
disease.
Furthermore,
antimicrobial
properties
terbium
induced
via
reactive
oxygen
species
(ROS)
cause
oxidative
damage
cell
membrane
nuclei
living
organisms,
ion
release,
surface
charge
interaction,
thus
creating
or
exhibiting
excellent
antioxidant
characteristics.
Moreover,
recent
tissue
engineering,
wound
healing,
anticancer
activity,
etc.,
angiogenesis,
proliferation,
promotion
growth
factors,
biocompatibility,
cytotoxicity
mitigation,
anti-inflammatory
potentials,
make
this
nanoparticle
anticipate
a
future
epoch
nanomaterials.
stand
as
game
changer
realm
research,
proffering
array
possibilities,
from
revolutionary
imaging
techniques
advanced
drug
systems.
Their
unique
including
luminescence,
magnetic
characteristics,
have
redefined
boundaries
what
can
be
achieved
biomedicine.
This
review
primarily
delves
into
various
mechanisms
involved
physicochemical
article
explains
potential
with
in-depth
significant
individual
literature.
additionally
stands
first
instance
furnish
"single-platted"
comprehensive
acquaintance
shaping
healthcare
well
limitations
overcoming
strategies
that
require
exploration
before
being
trialed
clinical
settings.
ACS Sensors,
Journal Year:
2023,
Volume and Issue:
8(10), P. 3623 - 3642
Published: Oct. 11, 2023
Over
the
past
few
decades,
pathogens
have
posed
a
threat
to
human
security,
and
rapid
identification
of
should
be
one
ideal
methods
prevent
major
public
health
security
outbreaks.
Therefore,
there
is
an
urgent
need
for
highly
sensitive
specific
approaches
identify
quantify
pathogens.
Clustered
Regularly
Interspaced
Short
Palindromic
Repeats
CRISPR/Cas
systems
Argonaute
(Ago)
belong
Microbial
Defense
Systems
(MDS).
The
guided,
programmable,
targeted
activation
nucleases
by
both
them
leading
way
new
generation
detection.
We
compare
these
two
in
terms
similarities
differences.
In
addition,
we
discuss
future
challenges
prospects
development
biosensors,
especially
electrochemical
biosensors.
This
review
expected
afford
researchers
entering
this
multidisciplinary
field
useful
guidance
provide
inspiration
more
innovative
biosensors
ACS Sensors,
Journal Year:
2024,
Volume and Issue:
9(6), P. 3150 - 3157
Published: May 8, 2024
Tracking
trace
protein
analytes
in
precision
diagnostics
is
an
ongoing
challenge.
Here,
we
developed
ultrasensitive
detection
method
for
the
of
SARS-CoV-2
nucleocapsid
(N)
by
combining
enzyme-linked
immunosorbent
assay
(ELISA)
with
clustered
regularly
interspaced
short
palindromic
repeat/CRISPR-associated
(CRISPR/Cas)
system.
First,
N
bound
capture
antibody
adsorbed
on
well
plate
was
sequentially
coupled
primary
antibody,
biotinylated
secondary
and
streptavidin
(SA),
followed
biotin
primer
binding
to
SA.
Subsequently,
rolling
circle
amplification
initiated
generate
ssDNA
strands,
which
were
targeted
CRISPR/Cas12a
cleave
FAM-ssDNA-BHQ1
probe
Nanoscale,
Journal Year:
2024,
Volume and Issue:
16(23), P. 11318 - 11326
Published: Jan. 1, 2024
The
escalating
global
threat
of
infectious
diseases,
including
monkeypox
virus
(MPXV),
necessitates
advancements
in
point-of-care
diagnostics,
moving
beyond
the
constraints
conventional
methods
tethered
to
centralized
laboratories.
Here,
we
introduce
multiple
CRISPR
RNA
(crRNA)-based
biosensors
that
can
directly
detect
MPXV
within
35
minutes
without
pre-amplification,
leveraging
enhanced
sensitivity
and
antifouling
attributes
BSA-based
nanocomposite.
Multiple
crRNAs,
strategically
targeting
diverse
regions
F3L
gene
MPXV,
are
designed
combined
amplify
Cas12a
activation
its
collateral
cleavage
reporter
probes.
Notably,
our
electrochemical
sensors
exhibit
detection
limit
669
fM
amplification,
which
is
approximately
a
15-fold
improvement
compared
fluorescence
detection.
This
sensor
also
shows
negligible
changes
peak
current
after
exposure
complex
biological
fluids,
such
as
whole
blood
serum,
maintaining
at
682
fM.
nearly
identical
conditions
when
only
was
present
PBS.
In
summary,
CRISPR-based
be
utilized
high-performance
diagnostic
tool
resource-limited
settings,
representing
transformative
leap
forward
testing.
Beyond
implications
this
technology
extend
various
molecular
establishing
itself
rapid,
accurate,
versatile
platform
for
target
analytes.