ACS Sensors,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 31, 2024
The
escalating
crisis
of
nanoplastic
pollution
in
water
and
food
products
demands
the
development
novel
methodologies
for
detection
recycling.
Despite
various
techniques
available,
surface-enhanced
Raman
scattering
(SERS)
is
emerging
as
a
highly
efficient
technique
trace
micro/nanoplastics.
However,
reproducible
stable,
flexible
SERS
substrates
that
can
be
used
sensitive
environmental
medium
remains
challenge.
Here,
we
report
fabrication
large-area,
three-dimensional
(3D),
substrate
based
on
porous
dendritic
Au
films
onto
indium
tin
oxide
(ITO)
via
facile,
thermal
evaporation
over
vacuum-compatible
deep
eutectic
solvent
(DES)-coated
glass
subsequent
direct
transfer
process.
as-fabricated
3D
Au/ITO
ultrasensitive
crystal
violet
(CV)
probe
analyte
molecules
with
limit
(LOD)
low
6.4
×
10–15
M,
good
signal
reproducibility
(RSD
11.3%).
In
addition,
showed
excellent
sensitivity
detecting
nanoplastics
such
poly(ethylene
terephthalate)
(200
nm)
polystyrene
(100
LODs
reaching
up
to
0.051
8.2
μg/mL,
respectively.
This
work
provides
facile
approach
preparation
plasmonic
substrates,
showing
great
potential
variety
pollutants.
Materials,
Journal Year:
2024,
Volume and Issue:
17(8), P. 1759 - 1759
Published: April 11, 2024
Microplastics
(MPs)
and
nanoplastics
(NPs)
both
represent
significant
concerns
in
environmental
sciences.
This
paper
aims
to
develop
a
convenient
efficient
methodology
for
the
detection
measurement
of
MPs
nanoparticles
from
surface
seawater
apply
it
water
samples
collected
UNESCO
site
Venice
its
lagoon,
more
precisely
Venice-Lido
Port
Inlet,
Grand
Canal
under
Rialto
Bridge,
Saint
Marc
basin.
In
this
study,
were
analyzed
through
optical
microscopy
their
relative
abundance
characterized
based
on
color,
shape,
size
classes,
while
concentration
mean
estimated
via
Nanoparticle
Tracking
Analysis
technique.
Bulk
sampling,
combined
with
filtration
cascade
stainless-steel
sieves
subsequent
digestion,
facilitates
relatively
small
sizes
(size
classes
distribution:
>1
mm,
1000–250
μm,
250–125
125–90
90–32
μm),
similar
ingested
by
marine
invertebrates
fishes.
A
protocol
minimizing
interference
non-plastic
evaporation,
processes
was
proposed
enrich
sample
NPs.
The
findings
contribute
understanding
extent
characteristics
nanoparticle
pollution
Lagoon
seawater,
highlighting
potential
risks
associated
these
pollutants
need
coordinated
approaches
mitigate
them.
article
is
scientific
research
carried
out
within
framework
H2020
In-No-Plastic—Innovative
towards
prevention,
removal
reuse
plastic
litter
project
(G.A.
ID
no.
101000612).
Langmuir,
Journal Year:
2024,
Volume and Issue:
40(33), P. 17476 - 17488
Published: Aug. 5, 2024
Nanoplastics
pollution
has
led
to
a
severe
environmental
crisis
because
of
large
accumulation
these
smaller
nanoplastic
particles
in
the
aquatic
environment
and
atmospheric
conditions.
Detection
nanoplastics
is
crucial
for
food
safety
monitoring
human
health.
In
this
work,
we
report
simple
eco-friendly
method
prepare
SERS-substrate-based
nanoporous
Ag
nanoparticle
(NP)
film
through
vacuum
thermal
evaporation
onto
vacuum-compatible
deep
eutectic
solvent
(DES)
coated
growth
substrate
quantitative
detection
samples.
The
NP
films
with
controlled
pores
were
achieved
by
soft-templating
role
DESs
over
substrate,
which
enabled
self-assembly
deposited
NPs
surface
DES.
optimized
provides
high
sensitivity
analyte
molecules,
crystal
violet
(CV),
rhodamine
6G
(R6G)
limit
(LOD)
up
1.5
×
10
