Micromachines,
Journal Year:
2023,
Volume and Issue:
14(8), P. 1595 - 1595
Published: Aug. 13, 2023
The
presence
of
heavy
metal
ions
in
soil,
air
and
water
constitutes
an
important
global
environmental
threat,
as
these
accumulate
throughout
the
food
chain,
contributing
to
rise
chronic
diseases,
including,
amongst
others,
cancer
kidney
failure.
To
date,
many
efforts
have
been
made
for
their
detection,
but
there
is
still
a
need
development
sensitive,
low-cost,
portable
devices
able
conduct
on-site
detection
ions.
In
this
work,
we
combine
microfluidic
technology
electrochemical
sensing
plastic
chip
selective
utilizing
DNAzymes
immobilized
between
platinum
nanoparticles
(PtNPs),
demonstrating
reliable
solution
pollution
monitoring.
For
realization
microfluidic-based
ion
device,
fast
easy-to-implement
fabrication
method
based
on
photolithography
dry
photosensitive
layers
proposed.
As
proof
concept,
demonstrate
Pb2+
using
prototype
device.
Micromachines,
Journal Year:
2023,
Volume and Issue:
14(8), P. 1520 - 1520
Published: July 28, 2023
The
contamination
of
air,
water
and
soil
by
heavy
metal
ions
is
one
the
most
serious
problems
plaguing
environment.
These
are
characterized
a
low
biodegradability
high
chemical
stability
can
affect
humans
animals,
causing
severe
diseases.
In
addition
to
typical
analysis
methods,
i.e.,
liquid
chromatography
(LC)
or
spectrometric
methods
(i.e.,
atomic
absorption
spectroscopy,
AAS),
there
need
for
development
inexpensive,
easy-to-use,
sensitive
portable
devices
detection
at
point
interest.
To
this
direction,
microfluidic
lab-on-chip
(LOC)
fabricated
with
novel
materials
scalable
microfabrication
have
been
proposed
as
promising
approach
realize
such
systems.
This
review
focuses
on
recent
advances
used
important
toxic
ions,
namely,
lead
(Pb),
mercury
(Hg),
arsenic
(As),
cadmium
(Cd)
chromium
(Cr)
ions.
Particular
emphasis
given
materials,
fabrication
realization
in
order
provide
complete
overview
existing
technology
well
limitations
challenges
that
should
be
addressed
improve
commercial
uptake
LOC
environmental
monitoring
applications.
Analytical Methods,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Jan. 1, 2024
An
indirect
chemiluminescence
method
for
the
detection
of
Cd(
ii
),
Pb(
)
and
Hg(
ions
on
a
microfluidic
electrophoresis
chip
using
Co(
as
probe
is
presented.
This
has
better
sensitivity.
