Electrochemical vs. Optical Biosensors for Point-of-Care Applications: A Critical Review
Chemosensors,
Journal Year:
2023,
Volume and Issue:
11(10), P. 546 - 546
Published: Oct. 21, 2023
Analytical
chemistry
applied
to
medical
and
diagnostic
analysis
has
recently
focused
on
the
development
of
cost-effective
biosensors
able
monitor
health
status
or
assess
level
specific
biomarkers
that
can
be
indicative
several
diseases.
The
improvement
technologies
relating
possibility
non-invasive
sampling
biological
fluids,
as
well
sensors
for
detection
analytical
signals
computational
capabilities
systems
routinely
employed
in
everyday
life
(e.g.,
smartphones,
computers,
etc.),
makes
complete
integration
self-standing
devices
more
accessible.
This
review
aims
discuss
have
been
proposed
last
five
years
focusing
two
principal
detecting
approaches,
optical
electrochemical,
which
quantifying
different
kinds
target
analytes
reaching
limits
below
clinical
sample
levels
required.
These
principles
point-of-care
(POC)
extensively
reported
literature,
even
limited
examples
found
market
are
based
these
strategies.
work
will
show
latest
innovations
considering
electrochemical
with
most
commonly
platforms
POC
applications
such
paper-based
wearable
implantable
devices.
Language: Английский
Trends in sensing of creatinine by electrochemical and optical biosensors
Radhika Babasaheb Jadhav,
No information about this author
Tejaswini P. Patil,
No information about this author
Arpita Tiwari
No information about this author
et al.
Applied Surface Science Advances,
Journal Year:
2024,
Volume and Issue:
19, P. 100567 - 100567
Published: Jan. 10, 2024
Creatinine
is
the
by-product
of
creatine
phosphate
within
muscle,
supplying
energy
to
muscle
tissues.
It
imperative
clinically
assess
creatinine
levels
in
both
urine
and
blood
as
it
serves
an
indicator
renal,
thyroid
functionality.
The
point-of-care
medical
diagnostic
research
development
most
innovative
form
exploratory
research.
determination
can
be
achieved
through
several
traditional
methods
such
colorimetric,
spectrophotometric
chromatographic
techniques.
Although
these
method
offers
high
sensitivity
selectivity,
they
are
accompanied
by
drawback
long
analysis
time,
need
for
sample
pre-treatment,
expensive
instruments
skilled
personnel.
In
contrast,
sensors
biosensors
present
a
favourable
solution
limitations
offer
rapid,
user-friendly,
cost
effective
highly
sensitive
alternatives.
This
review
article
describe
recent
trends
detection
using
electrochemical
optical
biosensors,
advantages
disadvantages
biosensors.
highlights
wide
range
explore
commercialization
aspects
with
home
monitoring
system.
Language: Английский
Deep Learning-Enhanced Portable Chemiluminescence Biosensor: 3D-Printed, Smartphone-Integrated Platform for Glucose Detection
Chirag M. Singhal,
No information about this author
V. Kaushik,
No information about this author
Amit K. Awasthi
No information about this author
et al.
Bioengineering,
Journal Year:
2025,
Volume and Issue:
12(2), P. 119 - 119
Published: Jan. 27, 2025
A
novel,
portable
chemiluminescence
(CL)
sensing
platform
powered
by
deep
learning
and
smartphone
integration
has
been
developed
for
cost-effective
selective
glucose
detection.
This
features
low-cost,
wax-printed
micro-pads
(WPµ-pads)
on
paper-based
substrates
used
to
construct
a
miniaturized
CL
sensor.
3D-printed
black
box
serves
as
compact
WPµ-pad
chamber,
replacing
traditional
bulky
equipment,
such
charge
coupled
device
(CCD)
cameras
optical
sensors.
Smartphone
enables
seamless
user-friendly
diagnostic
experience,
making
this
highly
suitable
point-of-care
(PoC)
applications.
Deep
models
significantly
enhance
the
platform’s
performance,
offering
superior
accuracy
efficiency
in
image
analysis.
dataset
of
600
experimental
images
was
utilized,
out
which
80%
were
model
training,
with
20%
reserved
testing.
Comparative
analysis
conducted
using
multiple
models,
including
Random
Forest,
Support
Vector
Machine
(SVM),
InceptionV3,
VGG16,
ResNet-50,
identify
optimal
architecture
accurate
The
sensor
demonstrates
linear
detection
range
10–1000
µM,
low
limit
8.68
µM.
Extensive
evaluations
confirmed
its
stability,
repeatability,
reliability
under
real-world
conditions.
learning-powered
not
only
improves
analyte
detection,
but
also
democratizes
access
advanced
diagnostics
through
technology.
work
paves
way
next-generation
biosensing,
transformative
potential
healthcare
other
domains
requiring
rapid
reliable
Language: Английский
Recent advances and trends in optical devices and sensors for hydrogen peroxide detection
John J. Galligan,
No information about this author
Antje J. Baeumner,
No information about this author
Axel Duerkop
No information about this author
et al.
TrAC Trends in Analytical Chemistry,
Journal Year:
2024,
Volume and Issue:
180, P. 117948 - 117948
Published: Sept. 3, 2024
Hydrogen
peroxide
(H2O2)
is
a
critically
important,
vital
biomarker
and
hence
highly
relevant
analyte
in
broad
range
of
bioanalytical
applications.
The
most
recent
trends
furthering
the
ability
its
reliable,
reproducible,
sensitive
quantification
include
development
non-biological
enzyme
mimics,
investigation
smartphone
cameras
as
transducers
detectors,
continued
semi-reversible
reversible
detection
strategies.
While
catalysts
offer
stability-related
advantages
over
enzymes
while
providing
equally
good
limits
detection,
critical
questions
regarding
toxicity,
persistence,
(bio)accumulation,
overall
environmental
footprint
need
to
be
answered.
In
case
heavy
metal-based
strategies
replacement
by
non-toxic,
renewable
alternatives
should
an
obvious
research
need.
Signal
recording
has
seen
dramatic
change
toward
smartphones,
with
their
ever-improving
computing
image-acquisition
abilities.
Yet,
sheer
number
different
camera
phone
models
progress
can
difficult
assess,
reproducibility
comparability
results
experimental
set-ups
are
too
often
elusive.
area
sensors
flow
injection
analysis
(FIA)
coupled
chemiluminescence
(CL)
remains
advanced
system.
fully
sensors,
points
oxygen-based
sensing
reliable.
Analyzing
publications
from
20198-20234,
it
not
surprising
that
important
analytical
figures
merit
low
(LODs),
quantitation
ranges,
faster
response
regeneration
times
combined
novel
(reversible)
probes
continue
remain
central
focus
future
developments.
Language: Английский
Easy-to-Use Chemiluminescent-Based Assay for a Rapid and Low-Cost Evaluation of the Antioxidant Activity of Cosmetic Products
Chemosensors,
Journal Year:
2024,
Volume and Issue:
12(2), P. 25 - 25
Published: Feb. 9, 2024
New
cosmetic
formulations
are
continuously
requested
by
the
market
and
ingredients
constantly
evolving.
Recently
use
of
antioxidants
has
gained
success
and,
in
this
context,
analytical
methods
able
to
quickly
easily
assess
antioxidant
activity
cosmetics
would
make
it
possible
carry
out
analyses
on
new
even
within
manufacturing
process
without
need
for
specialized
laboratories
personnel,
thus
evaluating
directly
on-site
effectiveness
shelf
life
products.
In
work,
a
chemiluminescent
inhibition
assay
was
developed
determining
total
The
method
based
luminol/enhancers/hydrogen
peroxide/horseradish
peroxidase
system,
which
generates
light
signals
measurable
through
simple
compact
instrumentation.
formation
signal
is
inhibited
presence
substances
while
restored
once
all
molecules
have
been
oxidized.
time
appearance
related
activity.
carried
exploiting
an
integrated
device
comprising
microwell
plate
coupled
with
array
amorphous
silicon
hydrogenated
photosensors
enclosed
mini-dark
box.
optimized
terms
concentrations
volumes
required
reagents
sample
pre-treatment.
A
calibration
curve
generated
taking
as
reference
ascorbic
acid
obtaining
detection
limit
10
µM.
applied
products
currently
well
spiked
samples
order
evaluate
performance
sensitivity,
accuracy,
reproducibility.
Language: Английский
Point-of-care blood tests using a smartphone-based colorimetric analyzer for health check-up
Microchimica Acta,
Journal Year:
2024,
Volume and Issue:
191(7)
Published: June 18, 2024
Language: Английский
Application of smart-responsive hydrogels in nucleic acid and nucleic acid-based target sensing: A review
Meiqi Song,
No information about this author
Jinghui Zhang,
No information about this author
Ke Shen
No information about this author
et al.
Biosensors and Bioelectronics,
Journal Year:
2024,
Volume and Issue:
267, P. 116803 - 116803
Published: Sept. 19, 2024
Language: Английский
Polyoxometalate-induced hydrogel with in situ nano/bioenzyme cascade reaction generating intensive and long-lasting glow-type chemiluminescence
Habib Ullah Khan,
No information about this author
Jinlan Yang,
No information about this author
Meng Wang
No information about this author
et al.
Chemical Engineering Journal,
Journal Year:
2024,
Volume and Issue:
unknown, P. 156129 - 156129
Published: Sept. 1, 2024
Language: Английский
Dual-mode detection of glucose based on pistol-like DNAzyme-mediated exonuclease-assisted signal cycle
BioTechniques,
Journal Year:
2024,
Volume and Issue:
76(9), P. 415 - 423
Published: Aug. 5, 2024
Detecting
glucose
accurately
and
sensitively
from
clinical
samples
like
tears
saliva
is
still
difficult.
We
have
created
a
sensor
that
can
detect
with
high
sensitivity
accuracy
by
combining
the
use
of
oxidase
(GOx)
to
catalyze
glucose,
pistol-like
DNAzyme
(PLDz)
transform
signal,
gold
nanoparticles
(AuNPs)
enhance
optical
properties
exonuclease-III
(Exo-III)
amplify
signal.
As
result,
proposed
method
exhibits
low
detection
limit
7.5
pM
wide
range
covering
seven
orders
magnitude.
The
suggested
dual-mode
strategy
provides
sensitive,
precise
specific
for
glucose.
Another
advantage
technique
significantly
improves
precision
consistency
measurements,
demonstrating
its
immense
potential
in
biomedical
research
diagnostics.
Language: Английский
Optical Image Sensors for Smart Analytical Chemiluminescence Biosensors
Reza Abbasi,
No information about this author
Xinyue Hu,
No information about this author
Alain Zhang
No information about this author
et al.
Bioengineering,
Journal Year:
2024,
Volume and Issue:
11(9), P. 912 - 912
Published: Sept. 12, 2024
Optical
biosensors
have
emerged
as
a
powerful
tool
in
analytical
biochemistry,
offering
high
sensitivity
and
specificity
the
detection
of
various
biomolecules.
This
article
explores
advancements
integration
optical
with
microfluidic
technologies,
creating
lab-on-a-chip
(LOC)
platforms
that
enable
rapid,
efficient,
miniaturized
analysis
at
point
need.
These
LOC
leverage
phenomena
such
chemiluminescence
electrochemiluminescence
to
achieve
real-time
quantification
analytes,
making
them
ideal
for
applications
medical
diagnostics,
environmental
monitoring,
food
safety.
Various
detectors
used
detecting
are
reviewed,
including
single-point
photomultiplier
tubes
(PMT)
avalanche
photodiodes
(APD),
pixelated
charge-coupled
devices
(CCD)
complementary
metal-oxide-semiconductor
(CMOS)
sensors.
A
significant
advancement
discussed
this
review
is
image
sensors,
particularly
CMOS
sensors
provide
numerous
advantages
over
traditional
detectors,
high-resolution
imaging,
spatially
resolved
measurements,
ability
simultaneously
detect
multiple
analytes.
Their
compact
size,
low
power
consumption,
cost-effectiveness
further
enhance
their
suitability
portable
point-of-care
diagnostic
devices.
In
future,
machine
learning
algorithms
these
technologies
promises
data
interpretation,
driving
development
more
sophisticated,
accessible
tools
diverse
applications.
Language: Английский