Environmental Science & Technology,
Journal Year:
2023,
Volume and Issue:
57(21), P. 8118 - 8129
Published: May 16, 2023
Both
zinc
oxide
nanoparticles
(ZnO
NPs)
and
microplastics
(MPs)
were
extracted
from
one
commercial
sunscreen,
while
other
ingredients
removed
based
on
the
"like
dissolves
like"
principle.
MPs
further
by
acidic
digestion
of
ZnO
NPs
using
HCl
characterized
as
spherical
particles
approximately
5
μm
with
layered
sheets
in
an
irregular
shape
surface.
Although
stable
presence
simulated
sunlight
water
after
12
h
exposure,
promoted
photooxidation
producing
hydroxyl
radicals,
a
2.5-fold
increase
carbonyl
index
degree
surface
oxidation.
As
result
oxidation,
more
soluble
fragmented
to
shapes
sharp
edges.
We
then
compared
cytotoxicity
primary
secondary
(25–200
mg/L)
HaCaT
cell
line
viability
loss
subcellular
damages.
The
cellular
uptake
transformed
was
enhanced
over
20%,
caused
higher
pristine
ones,
evidenced
46%
lower
viability,
220%
lysosomal
accumulation,
69%
reactive
oxygen
species,
27%
mitochondrial
loss,
72%
superoxide
at
200
mg/L.
Our
study
for
first
time
explored
activation
derived
products
revealed
high
MPs,
providing
new
evidence
effects
human
health.
iScience,
Journal Year:
2023,
Volume and Issue:
26(2), P. 106061 - 106061
Published: Jan. 28, 2023
Microplastics
and
nanoplastics
(M-NPLs)
are
ubiquitous
environmentally,
chemically,
or
mechanically
degraded
plastic
particles.
Humans
exposed
to
M-NPLs
of
various
sizes
types
through
inhalation
contaminated
air,
ingestion
water
food,
other
routes.
It
is
estimated
that
Americans
ingest
tens
thousands
millions
particles
yearly,
depending
on
socioeconomic
status,
age,
gender.
have
spurred
interest
in
toxicology
because
their
abundance,
nature,
ability
penetrate
bodily
cellular
barriers,
producing
toxicological
effects
cells,
tissues,
organs,
organ
systems.
The
present
review
paper
highlights:
(1)
current
knowledge
understanding
the
detrimental
mouse
models
human
cell
lines,
(2)
organelle
localization
M-NPLs,
underlying
uptake
mechanisms
focusing
endocytosis,
(3)
possible
pathways
involved
toxicity,
particularly
reactive
oxygen
species,
nuclear
factor-erythroid
factor
2-related
2
(NRF2),
Wnt/β-Catenin,
Nuclear
Factor
Kappa
B
(NF-kB)-regulated
inflammation,
apoptosis,
autophagy
signaling.
We
also
highlight
potential
role
increasing
incubation
time,
spread,
transport
COVID-19
virus.
Finally,
we
discuss
future
prospects
this
field.
Environments,
Journal Year:
2023,
Volume and Issue:
10(5), P. 70 - 70
Published: April 24, 2023
Plastic
litter
is
on
the
rise
where
plastic
waste
ends
up
in
undesignated
areas
such
as
coastal
shorelines,
exposed
to
environmental
conditions.
As
a
result,
degradation
and
decomposition
of
plastics
occur,
leading
formation
smaller
fragments
plastics,
termed
microplastics.
Microplastics
have
recently
been
considered
an
emerging
class
contaminants
due
their
ecotoxicological
impact
aquatic
environment
well
soil
matrix.
are
size
less
than
5
mm
produced
from
either
primary
source
(such
pellets,
beads
makeup
products)
or
secondary
wear
tear
normal-use
washing
clothes
textiles).
Microplastic
pollution
spread
across
hydrosphere,
pedosphere,
atmosphere,
these
zones
being
studied
for
microplastic
accumulation
individually.
However,
there
exists
source–sink
dynamic
between
compartments.
This
study
reviews
available
literature
research
discusses
current
state
fate
transport
explores
microplastics
communities,
provides
prospective
future
directions
management
strategies
control
pollution.
While
hydrosphere
well-documented
researched,
studies
understanding
mechanism
pedosphere
atmosphere
remain
poorly
understood.
International Journal of Environmental Research and Public Health,
Journal Year:
2023,
Volume and Issue:
20(3), P. 1745 - 1745
Published: Jan. 18, 2023
Microplastics
are
small
pieces
of
plastic
that
less
than
5
mm
in
size
and
can
be
found
most
environments,
including
the
oceans,
rivers,
air.
These
particles
have
negative
impacts
on
wildlife
environment.
In
this
review
literature,
we
analyze
presence
microplastics
various
species
wildlife,
fish,
birds,
mammals.
We
describe
a
variety
analytical
techniques,
such
as
microscopy
spectrometry,
which
identify
quantify
samples.
addition,
techniques
sample
preparation
discussed.
Summary
results
show
present
all
studied,
with
highest
concentrations
often
fish
birds.
The
literature
suggests
widely
distributed
environment
potential
to
affect
wide
range
species.
Further
research
is
required
fully
understand
Emerging contaminants,
Journal Year:
2023,
Volume and Issue:
10(2), P. 100298 - 100298
Published: Dec. 8, 2023
The
usage
of
face
masks
in
various
sectors
healthcare
facilities
dates
back
to
years
ago.
However,
the
utilization
facial
coverings
experienced
a
rapid
surge
as
result
escalating
rate
COVID-19
infections
witnessed
across
entire
globe.
This
culminated
an
unparalleled
inundation
disposed
within
surrounding
ecosystem.
transforms
mask
from
potent
protectant
into
massive
emerging
solid
plastic
waste
pollutant
with
long-term
adverse
effects
on
environment
and
human
health.
worldwide
scale
escalated
immensely
significant
129
billion
per
month
at
onset
pandemic.
Nanomaterial-based
technologies
have
been
integrated
manufacturing
chains
increase
performance
provide
antiviral
characteristics.
Nanotechnology
encompasses
multidisciplinary
aspects
including
artificial
intelligence,
chemistry,
biology,
material
science,
physical
medicine.
Abridgment
this
review
aims
make
discarded
sustainable
solution
many
environmental
pollution.
In
addition,
it
culminates
collaborative
well-conducted
trials,
done
for
generating
greener
solutions
intention
that
environment-friendly
manner.
Given
preceding,
purpose
is
discuss
evolution
sentinel
pathogens
pollutants
over
time,
well
comprehend
effect
biosphere,
health,
food
chain,
by
developing
scientifically
validated
strategies
treat
future.
Journal of environmental chemical engineering,
Journal Year:
2023,
Volume and Issue:
11(2), P. 109308 - 109308
Published: Jan. 11, 2023
During
the
first
year
of
COVID-19
pandemic,
facemasks
became
mandatory,
with
a
great
preference
for
disposable
ones.
However,
benefits
face
masks
health
safety
are
counteracted
by
environmental
burden
related
to
their
improper
disposal.
An
unprecedented
influx
entering
environment
has
been
reported
in
last
two
years
along
implications
natural
environments
terms
biodegradability,
released
contaminants
and
ecotoxicological
effects.
This
critical
review
addresses
several
aspects
current
literature
regarding
(bio)degradation
(eco)toxicity
contaminants,
identifying
uncertainties
research
needs
that
should
be
addressed
future
studies.
While
it
is
indisputable
mask
contamination
contributes
already
alarming
plastic
pollution,
we
still
far
from
determining
its
real
contribution
issue.
The
paucity
studies
on
biodegradation
ecotoxicity
uncontrolled
variables
involved
during
experimental
procedures,
compromising
eventual
comparison
conventional
debris.
Studies
abundance
composition
mask-released
(microplastics/fibres/
chemical
compounds)
under
pre-
post-pandemic
conditions
should,
therefore,
encouraged,
tests
considering
environmentally
relevant
settings.
To
achieve
this,
methodological
strategies
developed
overcome
technical
difficulties
quantify
characterise
smallest
MPs
fibres,
adsorbents,
leachates
increase
relevancy
conditions.
