Food Bioengineering,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 11, 2025
ABSTRACT
Cd(II)
and
Hg(II)
are
well‐known
toxic
heavy
metal
elements
that
difficult
to
degrade
by
microorganisms
in
the
environment.
Limits
for
food
have
been
established
Chinese
Government
other
authorities.
Aptamer‐based
electrochemical
sensor
detection
is
a
promising
method
rapidly
sensitively
detecting
metals.
However,
aptamer
configurations
easily
affected
environment
their
stability
needs
be
improved.
In
this
study,
an
ultra‐sensitive
was
successfully
constructed
based
on
aptamer/dopamine
molecularly
imprinted
polymer
composite
material,
explore
simultaneous
of
Hg(II).
Graphdiyne
nanomaterial
used
increase
load
electrode
surface.
The
captured
AuNPs
modified
through
Au‐S
bonds.
Dopamine
as
functional
monomer
self‐polymerization
form
layer,
stabilizing
conformation
enhancing
its
environmental
tolerance.
Under
optimal
conditions,
limits
(LOD)
were
7.6
6.0
ng/mL,
respectively.
Six
days
good
response
attained.
satisfactory
recovery
obtained
both
crab
ribbonfish
samples
demonstrates
sensor's
potential
multi‐species
analysis.
