ACS Sensors,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 9, 2025
Nanomaterials-integrated
CRISPR/Cas
systems
have
rapidly
emerged
as
powerful
next-generation
platforms
for
optical
biosensing.
These
integrated
harness
the
precision
of
CRISPR/Cas-mediated
nucleic
acid
detection
while
leveraging
unique
properties
nanomaterials
to
achieve
enhanced
sensitivity
and
expanded
analytical
capabilities,
thereby
broadening
their
diagnostic
potential.
By
incorporating
a
diverse
range
nanomaterials,
these
effectively
expand
toolbox
detection,
offering
adaptable
solutions
tailored
various
challenges.
This
review
provides
comprehensive
overview
successfully
into
CRISPR/Cas-based
sensing
systems.
It
examines
multiple
modalities,
including
fluorescence,
electrochemiluminescence,
colorimetry,
surface-enhanced
Raman
spectroscopy,
highlighting
how
facilitate
signal
amplification,
enable
multiplexing,
support
development
point-of-care
applications.
Additionally,
practical
applications
in
critical
fields
such
healthcare
diagnostics
environmental
monitoring
are
showcased.
While
offer
considerable
advantages,
several
real-world
challenges
complexity
assay
workflows,
impact
cost,
regulatory
hurdles
must
be
addressed
before
widespread
implementation
can
achieved.
identifying
obstacles
proposing
strategic
solutions,
we
aim
pave
way
continued
advancement
adoption
nanomaterial-integrated
biosensing
technologies.
Journal of Science Advanced Materials and Devices,
Journal Year:
2024,
Volume and Issue:
9(2), P. 100694 - 100694
Published: March 2, 2024
Nanomaterial
technology
is
a
comprehensive
subject
with
strong
intersections,
and
its
related
research
content
involves
wide
range
of
modern
scientific
technological
fields.
The
science
in
the
area
nanomaterials
has
attracted
attention
many
groups
over
past
few
years.
By
very
nature,
this
topic
lot
room
for
research,
to
tiny
objects
nanometer
range.
Nanomaterials
refer
sudden
changes
properties
substances
when
they
reach
scale,
resulting
special
properties.
In
paper,
we
introduce
various
commonly
used
field
biosensing,
briefly
explain
advantages
disadvantages
nanoscale
biosensors.
At
same
time,
also
working
principles
types
biosensors
based
on
nanomaterial
technology,
including
electrochemical
biosensors,
optical
piezoelectric
addition,
sensing
targets
common
such
as
enzymes,
DNA,
microorganisms,
etc.
Finally,
discuss
challenges
prospects
application
analyze
current
trends
future
directions.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: May 14, 2024
Abstract
Electrochemical
(EC)
analysis
has
emerged
as
a
high‐sensitivity,
reliable,
cost‐effective,
and
rapidly
evolving
technique
that
garnered
significant
attention
across
diverse
domains.
Furthermore,
EC‐based
techniques
hold
great
potential
for
miniaturization
integration.
The
integration
of
EC
with
mode/signal
(such
light,
magnetic,
thermal
signals,
etc.)
provides
unique
opportunities
biosensors
to
acquire
more
information
through
single
sensing
platform.
By
coupling
multiple
signals
or
processing
them
logically,
the
detection
accuracy
can
be
further
improved,
probability
false
positives
negatives
minimized.
In
this
review,
thorough
multi‐
sensors
in
field
is
conducted,
along
their
various
(e.g.,
fluorescence,
photothermal,
colorimetry,
microfluidic,
etc.).
aim
delve
into
latest
advances,
applications,
well
challenges
multi‐mode/signal
biosensors,
where
utilization
modalities
helps
enhance
accuracy,
sensitivity,
selectivity.
This
review
new
insight
synergistic
effects
integrating
other
techniques,
aiming
shed
light
on
near‐future
developments
EC‐integrated
biosensors.
Abstract
Persistent
infection
with
high-risk
human
papillomavirus
(HR-HPV)
is
the
primary
and
initiating
factor
for
cervical
cancer.
With
over
200
identified
HPV
types,
including
14
types
that
integrate
into
host
epithelial
cell
DNA,
early
determination
of
type
crucial
effective
risk
stratification
management.
Presently,
on-site
immediate
testing
during
screening
stage,
known
as
Point
Care
Testing
(POCT),
remains
immature,
severely
limiting
scope
scenarios
screening.
This
study,
guided
by
genomic
sequence
patterns
HPV,
established
a
multiplex
recombinase
polymerase
amplification
(RPA)
technology
based
on
concept
“universal
primers.”
approach
achieved
multiple
RPA,
coupled
CRISPR/Cas12a
system
serving
medium
signal
conversion.
The
study
successfully
constructed
POCT
combined
detection
system,
denoted
H-MRC12a
(HPV—Multiple
RPA—CRISPR/Cas12a),
applied
it
to
typing
detection.
accomplished
six
(16,
18,
31,
33,
35,
45)
can
be
completed
within
40
min,
entire
process,
from
sample
loading
result
interpretation,
45
depth
reaching
1
copy/μL
each
type.
Validation
system’s
reproducibility
specificity
was
further
conducted
through
QPCR
34
clinical
samples.
Additionally,
this
explored
optimized
RPA
CRISPR
at
molecular
mechanism
level.
Furthermore,
primer
design
strategy
developed
in
offers
potential
enhance
throughput
while
ensuring
sensitivity,
providing
novel
research
avenue
high-throughput
Point-of-Care
pathogen
studies.
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
63(41)
Published: July 22, 2024
Abstract
Self‐assembled
supramolecular
DNA
tetrahedra
composed
of
programmed
sequence‐engineered
complementary
base‐paired
strands
represent
elusive
nanostructures
having
key
contributions
to
the
development
and
diverse
applications
nanotechnology.
By
appropriate
engineering
strands,
tuneable
sizes
chemical
functionalities
were
designed.
Programmed
for
integrated
into
structures
including
sequence‐specific
recognition
(aptamers),
catalytic
DNAzymes,
nanoparticles,
proteins,
or
fluorophore.
The
article
presents
a
comprehensive
review
addressing
methods
assemble
characterize
nanostructures,
framework
are
discussed.
Topics
being
addressed
include
application
structurally
functionalized
nanostructure
assembly
optical
electrochemical
sensing
platforms
intracellular
imaging
modules.
In
addition,
triggered
reconfiguration
dynamic
networks
circuits
emulating
biological
transformations
introduced.
Moreover,
functionalization
frameworks
with
nanoparticles
provides
building
units
devices
crystallization
nanoparticle
superlattices.
Finally,
in
field
nanomedicine
addressed.
These
tetrahedra‐assisted
permeation
nanocarriers
cells
imaging,
controlled
drug
release,
active
chemodynamic/photodynamic
treatment
target
tissues,
regenerative
medicine.
ACS Sensors,
Journal Year:
2024,
Volume and Issue:
9(3), P. 1438 - 1446
Published: March 7, 2024
Exosomal
microRNAs
(exomiRNAs)
have
emerged
as
promising
biomarkers
for
the
early
clinical
diagnosis
of
osteoporosis.
However,
their
limited
abundance
and
short
length
in
peripheral
blood
present
significant
challenges
accurate
detection
exomiRNAs.
Herein,
we
designed
implemented
an
efficacious
fluorescence-based
biosensor
highly
sensitive
exomiRNA
associated
with
osteoporosis,
leveraging
enhancing
3D
DNA
walker-induced
CRISPR/Cas12a
technology.
The
engineered
walker
is
capable
efficiently
transforming
target
into
amplifying
strands,
thereby
sensitivity
developed
biosensor.
Concurrently,
liberated
strands
serve
activators
to
trigger
Cas12a
trans-cleavage
activity,
culminating
a
significantly
amplified
fluorescent
signal
exomiRNA-214.
Under
optimal
conditions,
devised
technology
demonstrated
capacity
detect
exomiRNA-214
at
concentrations
low
20.42
fM,
encompassing
wide
linear
range
extending
from
50.0
fM
10.0
nM.
Moreover,
could
accurately
differentiate
between
healthy
individuals
osteoporosis
patients
via
exomiRNA-214,
which
was
agreement
RT-qPCR
results.
As
such,
this
biosensing
offers
promise
valuable
tool
Analytical Chemistry,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 29, 2025
The
incidence
of
cervical
cancer
continues
to
rise
in
underdeveloped
regions
due
low
human
papillomavirus
(HPV)
vaccination
rates
and
inadequate
screening
systems.
To
achieve
convenient,
rapid,
accurate
detection
HPV,
we
developed
a
three-wire
lateral
flow
strip
assay
system
based
on
dual-OR
logic
gates
for
rapid
simultaneous
HPV
subtypes
16
18
single
test.
combines
three-branch-catalytic
hairpin
assembly
(TCHA)-mediated
signal
amplification
with
simple
OR
gate-based
output
improve
while
enabling
16/18
subtype
identification.
limit
the
method
was
calculated
be
10
aM
selected
target
sequences.
Meanwhile,
showed
excellent
specificity
no
false-positive
real-world
detection.
sensitivity
colorimetric
test
strips
exceeded
90%,
fluorescence-based
surpassed
95%
detecting
clinical
samples,
demonstrating
high
degree
concordance
results
obtained
from
real-time
quantitative
polymerase
chain
reaction
(qPCR).
This
provides
easy
HPV.
Small,
Journal Year:
2024,
Volume and Issue:
20(28)
Published: Feb. 11, 2024
Abstract
The
free‐to‐total
prostate‐specific
antigen
(f/t‐PSA)
ratio
is
of
great
significance
in
the
accurate
diagnosis
prostate
cancer.
Herein,
a
smartphone‐based
detection
system
reported
using
colorimetric
reaction
integrated
with
proximity‐induced
bio‐barcode
and
clustered
regularly
interspaced
short
palindromic
repeats
(CRISPR)/Cas12a
assay
for
f/t‐PSA
detection.
DNA/antibody
recognition
probes
are
designed
to
bind
f‐PSA
or
t‐PSA
induce
release
DNA
bio‐barcode.
CRISPR/Cas12a
activated
by
Ag+
from
C‐Ag+‐C
structure
hairpin
DNA.
released
used
affect
tetramethylbenzidine
(TMB)‐H2O2‐based
catalyzed
Pt
nanoparticles
(NPs),
as
peroxidase‐like
activity
NPs
can
be
efficiently
inhibited
Ag+.
A
smartphone
self‐developed
app
an
image
reader
analyzer
analyze
provide
results.
limit
0.06
0.04
ng
mL
−1
achieved
f‐PSA,
respectively.
method
showed
linear
response
between
0.1
100
f‐PSA.
In
tests
clinical
samples,
successfully
diagnosed
cancer
patients
benign
prostatic
hyperplasia
healthy
cases
high
sensitivity
specificity.