Computation,
Journal Year:
2023,
Volume and Issue:
11(10), P. 190 - 190
Published: Sept. 30, 2023
Polymerase
chain
reaction
(PCR)
technique
is
one
of
the
molecular
methods
in
amplifying
DNA
for
detection
malaria.
However,
collection
and
transportation
samples
processing
dissemination
results
via
conventional
PCR,
especially
when
used
routine
clinical
practice,
can
hamper
technique’s
sensitivity
specificity.
The
rampancy
such
disease
Philippines
aggravated
by
limited
supply
medical
machinery
poor
economic
state
country;
thus,
need
to
innovate
a
device
early
malaria
necessary.
With
that,
this
study
focuses
on
designing
microfluidic
that
will
mimic
function
genus-specific
PCR
based
18S
rRNA
gene
detect
parasites
(Plasmodium
falciparum)
at
low-grade
parasitemia.
design
was
intended
be
portable,
accessible,
economical,
which
none
from
past
literature
has
dealt
with
specifically
detection.
This
silico
first
country
specially
crafted
reasons.
proposed
developed
simulated
using
ANSYS
software
Computational
Fluid
Dynamics
(CFD)
analyses.
simulation
shows
adding
loops
increases
its
relative
deviation
but
minimally
compared
having
only
straight
path
design.
indicates
looping
acceptable
minimize
chip
length.
It
also
found
increasing
cross-sectional
area
fluid
decreases
efficiency
Lastly,
among
three
materials
utilized,
made
polypropylene
most
efficient,
0.94
polycarbonate
polydimethylsiloxane,
have
deviations
2.78
1.92,
respectively.
Future
researchers
may
mesh
44-cycle
due
limitations
study,
other
materials,
as
biocomposites,
assessed
broaden
application
Micromachines,
Journal Year:
2024,
Volume and Issue:
15(7), P. 932 - 932
Published: July 22, 2024
Microfluidic
separators
play
a
pivotal
role
in
the
biomedical
and
chemical
industries
by
enabling
precise
fluid
manipulations.
Traditional
fabrication
of
these
devices
typically
requires
costly
cleanroom
facilities,
which
limits
their
broader
application.
This
study
introduces
novel
microfluidic
device
that
leverages
passive
Zweifach–Fung
principle
to
overcome
financial
barriers.
Through
Lagrangian
computational
simulations,
we
optimized
an
eleven-channel
configuration
achieved
perfect
100%
recall
rate
for
particles
following
specified
normal
distribution.
Experimental
evaluations
determined
2
mL/h
as
optimal
total
flow
(TFR),
under
showcased
exceptional
performance
enhancements
precision
micrometer-sized
particles,
achieving
overall
accuracy
94%
±
3%.
Fabricated
using
cost-effective,
non-cleanroom
method,
this
approach
represents
significant
shift
from
conventional
practices,
dramatically
reducing
production
costs
while
maintaining
high
operational
efficacy.
The
cost
each
chip
is
less
than
USD
0.90
cents
manufacturing
process
takes
only
15
min.
development
not
makes
technology
more
accessible
but
also
sets
new
standard
future
advancements
field.
Biosensors,
Journal Year:
2024,
Volume and Issue:
14(6), P. 283 - 283
Published: May 30, 2024
A
microfluidic
immuno-biosensor
detection
system
consisting
of
a
spectrum
chip
and
micro-spectrometer
device
is
presented
for
the
rapid
point-of-care
(POC)
quantification
high-sensitivity
C-reactive
protein
(hs-CRP)
in
urine.
The
process
utilizes
highly
specific
enzyme-linked
immunosorbent
assay
(ELISA)
method,
which
capture
antibodies
are
pre-deposited
on
substrate
microchip
used
to
form
an
immune
complex
with
target
antigen.
Horseradish
peroxidase
(HRP)
added
as
marker
enzyme,
followed
by
colorimetric
reaction
using
3,3',5,5'-tetramethylbenzidine
(TMB).
absorbance
values
(a.u.)
compounds
measured
measure
corresponding
hs-CRP
concentration
according
pre-established
calibration
curve.
It
shown
that
can
be
determined
within
50
min.
In
addition,
achieves
recovery
rates
93.8-106.2%
blind
water
samples
94.5-104.6%
artificial
results
showed
CRP
41
urine
from
patients
chronic
kidney
disease
(CKD)
were
consistent
conventional
homogeneous
particle-enhanced
turbidimetric
immunoassay
(PETIA)
method's
(R
Biosensors,
Journal Year:
2025,
Volume and Issue:
15(2), P. 104 - 104
Published: Feb. 12, 2025
A
microfluidic
system
for
detecting
sodium
ions
(Na+)
has
been
developed,
incorporating
a
micro
finger-pump
chip
and
micro-spectrometer
platform
to
measure
Na+
concentration
in
human
serum.
small
volume
(10
μL)
of
serum
sample
is
introduced
into
the
microchip
reacted
with
preloaded
reagent
mixture
through
two-step
actuation
process.
The
resulting
purple
complex
directed
detection
area
analyzed
using
at
wavelengths
555
666
nm.
then
inversely
derived
from
measured
A555/A666
absorbance
ratio
self-written
software
installed
on
Raspberry
Pi.
entire
process
completed
just
3
min,
offering
significant
advantage
meeting
clinical
needs
compared
traditional
reporting
turnaround
time
several
hours
medical
institutions.
experimental
results
indicate
linear
relationship
between
within
range
1-200
mM,
correlation
coefficient
R2
=
0.9989.
Additionally,
60
samples
collected
chronic
kidney
disease
(CKD)
patients
showed
strong
agreement
those
obtained
conventional
indirect
ion-selective
electrode
(ISE)
method,
achieving
0.9885
an
average
recovery
rate
99.4%.
In
summary,
proposed
provides
practical,
affordable,
rapid
alternative
methods,
making
it
highly
promising
point-of-care
(POC)
testing
applications.
IEEE Transactions on Instrumentation and Measurement,
Journal Year:
2024,
Volume and Issue:
73, P. 1 - 14
Published: Jan. 1, 2024
Nucleic
acid
extraction
is
the
first
step
in
nucleic
analysis.
Currently,
designing
an
efficient,
robust,
and
automated
system
has
been
a
challenging
topic.
Moreover,
commonly
designed
based
on
magnetic
beads
method
which
most
widely
used
clinical
practice,
yet
there
lack
of
methods
to
characterize
measure
fluid
motion
processes.
This
leads
researchers
rely
biological
experimental
results
for
evaluating
performance
system.
To
address
these
issues,
we
proposed
highly
efficient
system,
including
ultrasound-assisted
instrument
microfluidic
chip.
integrated
ultrasound
technology
throughout
process,
significantly
enhanced
efficiency
while
eliminating
need
complex
functional
modules
or
additional
reagent
materials.
It
can
complete
within
12
minutes,
whereas
manual
other
instruments
typically
take
30
minutes
more.
Furthermore,
presented
non-contact
flow
pattern
measurement
approach
that
combines
acoustic
knowledge
machine
learning,
be
capture
miniature
confined
chamber
under
ultrasonic
stimulation.
Multidimensional
experiments
were
conducted
Firstly,
annotated
1946
field
images
achieved
average
recognition
precision
96.4%.
Based
measurements
analysis
actual
fields,
enhancements
made
stimulation
strategy,
improved
performance.
As
final
point,
verification
indicated
performed
comparably
"gold
standard"
method.
The
Coefficient
Variation
(CV)
remained
5%,
signaling
excellent
stability.
Particularly,
it
demonstrated
100%
detection
rate
low-concentration
samples
(1.7
×
10
3
copies/mL).
Analytical Chemistry,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Aug. 17, 2024
Domestic
monitoring
devices
make
real-time
and
long-term
health
possible,
allowing
people
to
track
their
status
regularly.
Uric
acid
(UA),
creatinine,
urea
in
urine
are
three
important
biomarkers
for
various
diseases,
especially
kidney
diseases.
This
work
proposed
a
10-channel
potentiometric
sensing
array
containing
UA
electrode
group,
creatinine
pH
one
pair
of
reference
channels,
which
could
be
connected
with
portable
analyzer,
realizing
the
simultaneous
detection
UA,
urea,
urine.
The
prepared
Pt/carbon
nanotubes
(CNTs)-uricase,
deiminase,
Au@urease,
polyaniline
were
employed
as
materials,
showing
responses
four
targets
high
sensitivity
selectivity.
To
improve
accuracy
domestic
monitoring,
calibration
channel
was
integrated
into
each
group
calibrate
basic
potential
influences
temperature
on
investigated
through
an
external
probe
slope
intercept.
With
preset
deduced
parameters
computational
formula
analyzer
Lab
Mode,
concentrations
human
samples
directly
displayed
screen
Practical
Mode.
agreement
these
results
those
obtained
from
commercial
kits
meters
reveals
methods
developing
facilitate
monitoring.