Diagnostics,
Journal Year:
2025,
Volume and Issue:
15(2), P. 123 - 123
Published: Jan. 7, 2025
With
the
advent
of
a
variety
vaccines
against
viral
infections,
there
are
multiple
viruses
that
can
be
prevented
via
vaccination.
However,
breakthrough
infections
or
uncovered
strains
still
cause
vaccine-preventable
(VPVIs).
Therefore,
timely
diagnosis,
treatment,
and
surveillance
these
is
critical
to
patient
care
public
health.
Point-of-care
(POC)
diagnostics
tools
have
brought
significant
improvements
in
detection
management
VPVIs.
These
cutting-edge
technologies
enable
prompt
accurate
results,
enhancing
by
facilitating
treatment
decisions.
This
review
delves
into
advancements
POC
testing,
including
antigen/antibody
molecular
assays,
while
focusing
on
their
impact
VPVIs
such
as
mpox,
hepatitis,
influenza,
flaviviruses
(dengue,
Zika,
yellow
fever
virus),
COVID-19.
The
role
tests
monitoring
infection
crucial
for
tracking
disease
progression
managing
outbreaks.
Furthermore,
application
has
shown
vital
health
strategies.
In
this
review,
we
also
highlight
emerging
CRISPR-based
smartphone-integrated
devices,
which
proven
particularly
beneficial
resource-limited
settings.
We
underscore
importance
continued
research
optimize
diagnostic
wider
global
use
dengue,
COVID-19,
addressing
current
challenges
related
sensitivity,
specificity,
availability,
efficiency,
more.
Angewandte Chemie International Edition,
Journal Year:
2023,
Volume and Issue:
62(17)
Published: Jan. 30, 2023
Abstract
Polymerase
chain
reaction
(PCR)‐based
nucleic
acid
testing
has
played
a
critical
role
in
disease
diagnostics,
pathogen
surveillance,
and
many
more.
However,
this
method
requires
long
turnaround
time,
expensive
equipment,
trained
personnel,
limiting
its
widespread
availability
diagnostic
capacity.
On
the
other
hand,
clustered
regularly
interspaced
short
palindromic
repeats
(CRISPR)
technology
recently
demonstrated
capability
for
detection
with
high
sensitivity
specificity.
CRISPR‐mediated
biosensing
holds
great
promise
revolutionizing
procedures
developing
point‐of‐care
diagnostics.
This
review
focuses
on
recent
developments
both
fundamental
CRISPR
biochemistry
CRISPR‐based
techniques.
Four
ongoing
research
hotspots
molecular
diagnostics‐target
preamplification‐free
detection,
microRNA
(miRNA)
testing,
non‐nucleic‐acid
SARS‐CoV‐2
detection‐are
also
covered.
Talanta,
Journal Year:
2022,
Volume and Issue:
252, P. 123773 - 123773
Published: Aug. 6, 2022
Aflatoxin
B1
(AFB1)
contamination
in
food
threatens
global
safety,
and
rapid
quantitative
detection
of
AFB1
remains
a
challenge.
Herein,
novel
fluorescence
biosensor
was
developed
for
based
on
CRISPR/Cas12a
MXenes.
Specifically,
the
well-designed
activator
locked
by
dual-AFB1
aptamers,
Cas12a
directly
linked
to
crRNA
form
inactivated
complexes,
MXenes
efficiently
adsorbed
FAM
fluorophore-modified
single-stranded
DNA
(ssDNA-FAM),
quenching
its
fluorescence.
In
presence
AFB1,
released
due
preferential
binding
aptamer
then
activated
trans-cleavage
activity
indiscriminately
cleave
ssDNA
MXenes,
leading
recovery
signal.
The
fluorescent
had
wide
range
from
0.001
80
ng
mL-1,
limit
0.92
pg
ability
detect
within
min.
More
importantly,
platform
demonstrates
excellent
performance
real
peanut
samples.
Journal of Nanobiotechnology,
Journal Year:
2022,
Volume and Issue:
20(1)
Published: Jan. 21, 2022
Abstract
Early
detection
of
viral
pathogens
by
DNA-sensors
in
clinical
samples,
contaminated
foods,
soil
or
water
can
dramatically
improve
outcomes
and
reduce
the
socioeconomic
impact
diseases
such
as
COVID-19.
Clustered
regularly
interspaced
short
palindromic
repeat
(CRISPR)
its
associated
protein
Cas12a
(previously
known
CRISPR-Cpf1)
technology
is
an
innovative
new-generation
genomic
engineering
tool,
also
‘genetic
scissors’,
that
has
demonstrated
accuracy
recently
been
effectively
applied
appropriate
(E-CRISPR)
DNA-sensor
to
detect
nucleic
acid
interest.
The
CRISPR-Cas12a
from
Prevotella
Francisella
1
are
guided
a
CRISPR
RNA
(gRNA).
unique
simultaneous
cis-
trans-
DNA
cleavage
after
target
sequence
recognition
at
PAM
site,
sticky-end
(5–7
bp)
employment,
ssDNA/dsDNA
hybrid
strategies
manipulate
attractive
nature
CRISPR–Cas12a
reviewed.
based
on
for
rapid,
robust,
sensitive,
inexpensive,
selective
virus
without
additional
sample
purification,
amplification,
fluorescent-agent-
and/or
quencher-labeling
relevant
becoming
increasingly
important
industrial
medical
applications.
In
addition,
system
shows
great
potential
field
E-CRISPR-based
bioassay
research
technologies.
Therefore,
we
highlighting
insights
this
direction.
Graphical
Advanced Materials,
Journal Year:
2022,
Volume and Issue:
34(30)
Published: March 14, 2022
Abstract
Several
viral
infectious
diseases
appear
limitless
since
the
beginning
of
21
st
century,
expanding
into
pandemic
lengths.
Thus,
there
are
extensive
efforts
to
provide
more
efficient
means
diagnosis,
a
better
understanding
acquired
immunity,
and
improved
monitoring
inflammatory
biomarkers,
as
these
all
crucial
for
controlling
spread
infection
while
aiding
in
vaccine
development
improving
patient
outcomes.
In
this
regard,
various
biosensors
have
been
developed
recently
streamline
pathogen
immune
response
detection
by
addressing
limitations
traditional
methods,
including
isothermal
amplification‐based
systems
lateral
flow
assays.
This
review
explores
state‐of‐the‐art
detecting
pathogens,
serological
assays,
biomarkers
from
material
perspective,
discussing
their
advantages,
limitations,
further
potential
regarding
analytical
performance,
clinical
utility,
point‐of‐care
adaptability.
Additionally,
next‐generation
biosensing
technologies
that
offer
sensitivity
selectivity,
easy
handling
end‐users
highlighted.
An
emerging
example
those
powered
novel
synthetic
biology
tools,
such
clustered
regularly
interspaced
short
palindromic
repeats
(CRISPR)
with
CRISPR‐associated
proteins
(Cas),
combination
integrated
devices.
Lastly,
current
challenges
discussed
roadmap
furthering
advanced
manage
future
pandemics
is
provided.
Wiley Interdisciplinary Reviews Nanomedicine and Nanobiotechnology,
Journal Year:
2022,
Volume and Issue:
14(5)
Published: July 1, 2022
Abstract
Gold
and
silver
nanoparticles
(NPs)
are
widely
used
in
the
biomedical
research
both
therapeutic
sensing/diagnostics
fronts.
Both
metals
share
some
common
optical
properties
with
surface
plasmon
resonance
being
most
exploited
property
therapeutics
diagnostics.
Au
NPs
exhibit
excellent
light‐to‐heat
conversion
efficiencies
hence
have
found
applications
primarily
precision
oncology,
while
Ag
antibacterial
which
can
be
harnessed
biomaterials'
design.
constitute
biosensing
platforms
owing
to
their
plasmonic
now
routinely
various
platforms.
The
utilization
of
COVID‐19
pandemic
was
rapidly
expanded
mostly
point‐of‐care
extent
therapeutics.
In
this
review
article,
main
physicochemical
discussed
selective
examples
from
recent
literature.
This
article
is
categorized
under:
Therapeutic
Approaches
Drug
Discovery
>
Nanomedicine
for
Oncologic
Disease
Diagnostic
Tools
Vitro
Nanoparticle‐Based
Sensing
Nanotechnology
Biology
Nanoscale
Systems
Nano-Micro Letters,
Journal Year:
2022,
Volume and Issue:
14(1)
Published: Aug. 4, 2022
Coronavirus
disease
2019
(COVID-19)
is
a
highly
contagious
caused
by
severe
acute
respiratory
syndrome
coronavirus
2
(SARS-CoV-2).
The
gold
standard
method
for
the
diagnosis
of
SARS-CoV-2
depends
on
quantitative
reverse
transcription-polymerase
chain
reaction
till
now,
which
time-consuming
and
requires
expensive
instrumentation,
confirmation
variants
relies
further
sequencing
techniques.
Herein,
we
first
proposed
robust
technique-methodology
electrochemical
CRISPR
sensing
with
advantages
rapid,
sensitivity
specificity
detection
variant.
To
enhance
capability,
electrodes
are
uniformly
decorated
electro-deposited
nanoparticles.
Using
DNA
template
identical
to
Delta
spike
gene
sequence
as
model,
our
biosensor
exhibits
excellent
analytical
limit
(50
fM)
high
linearity
(R2
=
0.987)
over
six
orders
magnitude
dynamic
range
from
100
fM
10
nM
without
any
nucleic-acid-amplification
assays.
can
be
completed
within
1
h
stability
benefits
CRISPR-Cas
system.
Furthermore,
based
wireless
micro-electrochemical
platform,
reveals
promising
application
ability
in
point-of-care
testing.