Journal of Agricultural and Food Chemistry,
Год журнала:
2022,
Номер
70(30), С. 9567 - 9576
Опубликована: Июль 26, 2022
Lead
contamination
has
posed
a
potential
threat
to
the
environment
and
food
safety,
arousing
extensive
concern.
In
this
work,
we
fabricated
novel
fluorescent
sensing
platform
based
on
zeolitic
imidazolate
framework-8
(ZIF-8)
DNAzyme
for
monitoring
Pb2+
in
water
fish
samples.
ZIF-8
was
proposed
as
fluorescence
quencher
with
advantages
of
simple
synthesis,
low
cost,
high
quenching
efficiency.
The
Pb2+-dependent
GR5
containing
large
ssDNA
loop
can
be
adsorbed
onto
accompanied
by
quenching.
Upon
binding
Pb2+,
activated
cleaved,
leading
release
FAM-labeled
5-base
ssDNA,
which
restored
fluorescence.
"turn-on"
assay
detect
through
one-pot
procedure
range
0.01-10.0
nM
detection
limit
7.1
pM.
is
promising
on-site
owing
excellent
performance
sensitivity,
background,
strong
anti-interference
ability,
operation.
Frontiers in Microbiology,
Год журнала:
2023,
Номер
14
Опубликована: Апрель 3, 2023
Toxic
wastes
like
heavy
metals
and
dyes
are
released
into
the
environment
as
a
direct
result
of
industrialization
technological
progress.
The
biosorption
contaminants
utilizes
variety
biomaterials.
Biosorbents
can
adsorb
toxic
pollutants
on
their
surface
through
various
mechanisms
complexation,
precipitation,
etc.
quantity
sorption
sites
that
accessible
biosorbent
affects
its
effectiveness.
Biosorption’s
low
cost,
high
efficiency,
lack
nutrient
requirements,
ability
to
regenerate
main
advantages
over
other
treatment
methods.
Optimization
environmental
conditions
temperature,
pH,
availability,
factors
is
prerequisite
achieving
optimal
performance.
Recent
strategies
include
nanomaterials,
genetic
engineering,
biofilm-based
remediation
for
types
pollutants.
removal
hazardous
from
wastewater
using
biosorbents
strategy
both
efficient
sustainable.
This
review
provides
perspective
existing
literature
brings
it
up-to-date
by
including
latest
research
findings
in
field.
