Biosensors,
Год журнала:
2023,
Номер
14(1), С. 7 - 7
Опубликована: Дек. 22, 2023
Food
contaminants
represent
possible
threats
to
humans
and
animals
as
severe
food
safety
hazards.
Prolonged
exposure
contaminated
often
leads
chronic
diseases
such
cancer,
kidney
or
liver
failure,
immunosuppression,
genotoxicity.
Aflatoxins
are
naturally
produced
by
strains
of
the
fungi
species
Biosensors,
Год журнала:
2023,
Номер
13(6), С. 661 - 661
Опубликована: Июнь 16, 2023
Herein
we
report
a
highly
specific
electrochemical
aptasenseor
for
AFB1
determination
based
on
AFB1-controlled
diffusion
of
redox
probe
(Ru(NH3)63+)
through
nanochannels
AFB1-specific
aptamer
functionalized
VMSF.
A
high
density
silanol
groups
the
inner
surface
confers
VMSF
with
cationic
permselectivity,
enabling
electrostatic
preconcentration
Ru(NH3)63+
and
producing
amplified
signals.
Upon
addition
AFB1,
interaction
between
occurs
generates
steric
hindrance
effect
access
Ru(NH3)63+,
finally
resulting
in
reduced
responses
allowing
quantitative
AFB1.
The
proposed
aptasensor
shows
excellent
detection
performance
range
3
pg/mL
to
μg/mL
low
limit
2.3
detection.
Practical
analysis
peanut
corn
samples
is
also
accomplished
satisfactory
results
by
our
fabricated
aptasensor.
Journal of Agricultural and Food Chemistry,
Год журнала:
2024,
Номер
72(11), С. 5975 - 5982
Опубликована: Март 11, 2024
Due
to
the
high
toxicity
of
aflatoxin
B1
and
its
risks
human
health,
we
developed
a
click
reaction-mediated
automated
fluorescent
immunosensor
(CAFI)
for
sensitive
detection
based
on
Cu(I)-catalyzed
reaction.
With
large
specific
surface
area,
copper-based
metal–organic
framework
(Cu-MOF)
was
synthesized
adsorb
enrich
copper
ion
(Cu(II))
then
load
complete
antigen
(BSA-AFB1).
After
immunoreaction,
Cu(II)
inside
Cu-MOF-Antigen
conjugate
would
be
reduced
Cu(I)
in
presence
sodium
ascorbate,
which
triggered
reaction
between
donor-modified
DNA
receptor-modified
complementary
lead
fluorescence
signal
readout.
The
whole
steps
were
finished
by
self-developed
immunoreaction
device.
This
CAFI
method
showed
limit
(LOD)
0.48
pg/mL
as
well
670-fold
enhancement
sensitivity
compared
conventional
ELISA,
revealing
great
potential
practical
applications
detection.
Journal of Food Chemistry and Nanotechnology,
Год журнала:
2024,
Номер
10
Опубликована: Март 11, 2024
Food
spoilage
is
an
enormous
problem
in
the
food
industry
because
it
can
result
not
only
wastage
of
and
financial
losses
but
also
lead
to
health-related
problems.Therefore,
a
timely
identification
deterioration
essential
greatly
help
ensure
safety,
minimize
losses,
maintain
consumer
confidence.In
recent
years,
biosensors
have
evolved
into
rapid,
sensitive,
highly
reliable
methods
for
detection
indicators.Biosensors
are
composed
unique
biological
elements
transducer
that
enable
quantification
markers
like
volatile
organic
gases,
microorganisms,
or
enzymes.This
review
article
discusses
principles,
types,
sensing
mechanisms
used
this
field,
highlighting
their
advantages
limitations.The
addresses
factors
responsible
which
could
be
detected
by
biosensor,
such
as
microbial
activity,
enzymatic
processes,
metabolite
synthesis.Furthermore,
presents
most
advancements
signal
transduction
techniques,
components,
platforms
biosensors.Overall,
objectively
evaluates
current
state
terms
sensitivity,
selectivity,
applicability
different
samples
highlights
challenges
prospects
field
biosensors,
including
application
nanotechnology,
miniaturization,
data
processing
improved
prediction.
Food Chemistry X,
Год журнала:
2024,
Номер
23, С. 101681 - 101681
Опубликована: Июль 23, 2024
Ratiometric
electrochemical
sensors
are
renowned
for
their
dual-signal
processing
capabilities,
enabling
automatic
correction
of
background
noise
and
interferences
through
built-in
calibration,
thus
providing
more
accurate
reproducible
measurements.
This
characteristic
makes
them
highly
promising
food
analysis.
review
comprehensively
summarizes
discusses
the
latest
advancements
in
ratiometric
applications
analysis,
emphasizing
design
strategies,
detection
practical
uses.
Initially,
we
explore
construction
strategies
these
sensors.
We
then
various
food-related
analytes,
including
nutrients,
additives,
metal
ions,
pharmaceutical
pesticide
residues,
biotoxins,
pathogens.
The
also
briefly
explores
challenges
faced
by
testing
potential
future
directions
development.
It
aims
to
provide
researchers
with
a
clear
introduction
serve
as
reference
application
new,
efficient
Food Safety and Health,
Год журнала:
2024,
Номер
2(2), С. 221 - 237
Опубликована: Март 18, 2024
Abstract
Ensuring
the
highest
standards
of
food
quality
and
safety
is
crucial
for
maintaining
human
health.
This
requires
creation
sophisticated
highly
sensitive
techniques
detecting
identifying
pollutants.
Raman
spectroscopy,
known
its
rapidity,
simplicity,
sensitivity,
noninvasive
characteristics,
has
become
a
prominent
method
in
field
analysis.
review
discusses
detail
fundamental
principles,
instruments,
methodology,
data
processing
spectroscopy.
It
specifically
emphasizes
practical
applications
spectroscopy
assessing
foodborne
pathogens,
toxic
gases
spoiled
foods,
monitoring
translocation
pesticide
plants.
Finally,
we
discussed
development
trend
challenges
analysis,
aiming
to
provide
an
accessible
guide.
article
equips
readers
with
essential
insights
into
conducting
understanding
experiments,
thereby
contributing
Micromachines,
Год журнала:
2023,
Номер
14(7), С. 1412 - 1412
Опубликована: Июль 13, 2023
The
rapid
and
sensitive
detection
of
food
contaminants
is
becoming
increasingly
important
for
timely
prevention
treatment
foodborne
disease.
In
this
review,
we
discuss
recent
developments
electrochemical
biosensors
as
facile,
rapid,
sensitive,
user-friendly
analytical
devices
their
applications
in
safety
analysis,
owing
to
the
characteristics
advances
design
production
bioreceptors
(antibodies,
DNA,
aptamers,
peptides,
molecular
imprinted
polymers,
enzymes,
bacteriophages,
etc.).
They
can
offer
a
low
limit
required
such
allergens,
pesticides,
antibiotic
traces,
toxins,
bacteria,
etc.
We
provide
an
overview
broad
range
biosensing
designs
consider
future
opportunities
technology
control.