Environmental Pollution,
Journal Year:
2024,
Volume and Issue:
362, P. 124971 - 124971
Published: Sept. 16, 2024
Plastic
pollution,
driven
by
micro-
and
nanoplastics
(MNPs),
poses
a
major
environmental
threat,
exposing
humans
through
various
routes.
Despite
human
colorectal
adenocarcinoma
Caco-2
cells
being
used
as
an
in
vitro
model
for
studying
the
intestinal
epithelium,
uncertainties
linger
about
MNPs
harming
these
factors
influencing
adverse
effects.
Addressing
this
lacuna,
our
study
aimed
to
elucidate
pivotal
MNP
parameters
cytotoxicity
cells,
employing
meta-analysis
machine
learning
techniques
quantitative
assessment.
Initial
scrutiny
of
95
publications
yielded
17
that
met
inclusion
criteria,
generating
dataset
320
data
points.
This
underwent
meticulous
stratification
based
on
polymer
type,
exposure
time,
size,
concentration,
biological
assays
utilised.
Subsequent
dose-response
curve
analysis
revealed
moderate
correlations
selected
subgroups,
such
(3-[4,5-dimethylthiazol-2-yl]-2,5
diphenyl
tetrazolium
bromide)
MTT
assay
time
exceeding
24
h,
with
coefficient
determination
(R
Environmental Technology & Innovation,
Journal Year:
2024,
Volume and Issue:
35, P. 103729 - 103729
Published: June 26, 2024
The
interaction
between
microplastics
(MPs)
and
pollutants
is
crucial
for
assessing
the
environmental
risk
of
MPs.
It
necessary
to
pay
attention
adsorption/desorption
behavior
antibiotics
on
MPs
due
their
potential
role
in
antibiotic
resistance.
When
MPs-loaded
are
ingested
by
organisms,
they
enter
gastrointestinal
tract
undergo
desorption,
leading
corresponding
toxic
effects.
Existing
literature
primarily
focuses
adsorption
behavior,
while
there
a
lack
systematic
generalizations
desorption
or
combined
effects
organisms.
Therefore,
this
article
provides
review
mechanisms,
biological
tract.
Desorption
suggests
that
characteristics
(aging
hydrophobicity)
components
fluid
(digestive
enzyme
species
pH)
can
also
have
effect
desorption.
Moreover,
summarizes
induced
MPs-antibiotics,
demonstrating
either
enhance
reduce
plants,
microorganisms,
aquatic
animals.
Since
methodological
uniformity
relevance
natural
environment
main
shortcomings
existing
literature,
future
research
should
focus
actual
water
given
region
studying
at
gene,
protein,
metabolic
levels.
This
direction
expected
provide
valuable
references
insights
evaluating
antibiotics.
Aged
micro(nano)plastics
(MNPs)
are
normally
the
ultimate
state
of
plastics
in
environment
after
aging.
The
changes
physical
and
chemical
characteristics
aged
MNPs
significantly
influence
their
environmental
behavior
by
releasing
additives,
forming
byproducts,
adsorbing
contaminants.
However,
a
systematic
review
is
lacking
on
effects
ecological
human
health
regarding
increasing
but
scattered
studies
results.
This
Review
first
summarizes
unique
methods
for
quantifying
aging
degree.
Then
we
focused
potential
impacts
organisms,
ecosystems,
health,
including
"Trojan
horse"
under
real
conditions.
Through
combining
meta-analysis
analytic
hierarchy
process
(AHP)
model,
demonstrated
that,
compared
to
virgin
MNPs,
would
result
biomass
decrease
oxidative
stress
increase
organisms
lead
total
N/P
greenhouse
gas
emissions
ecosystems
while
causing
cell
apoptosis,
antioxidant
system
reaction,
inflammation
health.
Within
framework
risk
assessment,
used
quotient
(RQ)
physiologically
based
pharmacokinetic
(PBK)
models
as
examples
illustrate
importance
considering
degree
data
acquisition,
model
building,
formula
evaluation.
Given
risks
our
urgent
call
more
understand
hazards
real-world
environments.
Comparative Biochemistry and Physiology Part A Molecular & Integrative Physiology,
Journal Year:
2024,
Volume and Issue:
295, P. 111669 - 111669
Published: May 26, 2024
From
review
of
the
very
few
topical
studies
to
date,
we
conclude
that
while
effects
are
variable,
microplastics
can
induce
direct
ionoregulatory
disturbances
in
freshwater
fish
and
invertebrates.
However,
intensity
depends
on
microplastic
type,
size,
concentration,
exposure
regime.
More
numerous
where
indirect
inferences
about
possible
be
drawn;
these
indicate
increased
mucus
production,
altered
breathing,
histopathological
gill
structure,
oxidative
stress,
alterations
molecular
pathways.
All
could
have
negative
homeostasis.
previous
research
has
suffered
from
a
lack
standardized
reporting
characteristics
conditions.
Often
overlooked
is
fact
dynamic
contaminants,
changing
over
time
through
degradation
fragmentation
subsequently
exhibiting
surface
chemistry,
notably
an
presence
diversity
functional
groups.
The
same
groups
characterized
also
present
dissolved
organic
matter,
often
termed
carbon
(DOC),
class
substances
for
which
far
greater
understanding
their
actions.
We
highlight
instances
resemble
those
DOC
exposure.
propose
future
investigations,
vivo
techniques
proven
useful
should
used
including
measurements
transepithelial
potential,
net
unidirectional
radio-isotopic
ion
flux
rates,
concentration
kinetic
analyses
uptake
transport.
sophisticated
vitro
approaches
using
cultured
epithelia,
Ussing
chamber
experiments
surrogate
membranes,
scanning
selective
electrode
(SIET)
may
prove
useful.
Finally,
advocate
minimum
requirements
properties
experimental
conditions
help
advance
this
important
emerging
field.
Water,
Journal Year:
2025,
Volume and Issue:
17(7), P. 989 - 989
Published: March 28, 2025
Saline
lakes
are
rare
and
fragile
habitats
with
a
high
conservation
scientific
interest.
We
have
studied
the
presence
of
microplastics
(MPs)
in
water
four
inland
saline
located
Central
Ebro
Basin
(CEB),
NE
Spain.
Quantification
characterization
MPs
were
performed
by
optical
microscopy
micro-Fourier
Transform
Infrared
Spectroscopy
(micro-FTIR).
analyzed
covered
5–5000
μm
range.
Most
collected
contained
250–500
500–1000
ranges.
The
concentration
varied
from
850
±
271
to
1556
59
MPs/L,
fibers
being
most
dominant
typology.
Seven
different
colors
observed,
abundant
black,
seven
types
plastic
identified,
polyester,
polyethylene
terephthalate,
nylon
abundant.
smallest
presented
more
homogeneous
MP
size
distribution
wider
variety
color
polymer
composition.
This
work
shows
that
these
is
at
least
one
order
magnitude
higher
than
previous
values
reported
similar
environments,
it
expected
multiply
fast.
highlights
importance
hydrological
characteristics
lakes,
evapotranspiration
only
outflow,
atmospheric
deposition
MPs,
other
anthropogenic
causes.
Research Square (Research Square),
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 1, 2025
Abstract
This
study
investigated
the
effects
of
different
aging
treatments
(UV
light,
potassium
permanganate,
and
sodium
hydroxide
treatments)
on
adsorption
lead
(Pb(II))
by
PET
microplastics,
as
well
impact
Microcystis
aeruginosa
microplastics.
The
results
indicated
that
significantly
affected
capacity
which
could
be
attributed
to
increased
functional
groups
surface
porosity
during
process.
Kinetic
analysis
revealed
Pb(II)
follows
a
pseudo-second-order
model,
suggested
process
is
mainly
controlled
chemical
adsorption.
Intraparticle
diffusion
further
elucidated
migration
mechanism
within
On
other
hand,
presence
enhanced
As
concentration
microalgae
increases,
promoting
effect
microplastics
gradually
strengthens,
with
extracellular
polymeric
substances
(EPS)
secreted
playing
key
role
in
facilitating
These
findings
strengthen
carriers
heavy
metal
aggravate
risk
pollution
aquatic
ecological
environment.
ACS Nano,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 6, 2025
The
accumulation
of
plastic
waste
in
the
environment
has
raised
widespread
concern
about
impact
microplastics
(MPs)
on
human
and
environmental
health,
particularly
regarding
aged
MPs.
This
study
investigated
effects
subchronic
dietary
intake
pristine
polyethylene
(PE-MPs)
C57BL/6J
mice.
Results
revealed
that
both
PE-MPs,
at
doses
0.01
1
mg/day,
induced
plasma
metabolic
changes
primarily
associated
with
lipid
metabolism
digestive
processes.
These
alterations
were
reflected
expression
proteins
involved
unsaturated
fatty
acid
pathways
liver
as
well
a
reduction
beneficial
gut
microbiota.
Key
contributors
toxicity
PE-MPs
included
ATP-binding
cassette
transporters,
bacteria
(notably
Lactobacillus,
Akkermansia,
Parasutterella,
Turicibacter),
significantly
altered
related
to
elongation,
such
acyl-CoA
thioesterase
enzyme
family
elongation
very
long
chain
protein
5.
disruptions
exacerbated
disorders,
potentially
contributing
diseases.
Additionally,
decreased
levels
glutathione
S-transferase
A
proteins,
along
reduced
hepatic
increased
reactive
oxygen
species
small
intestine
liver,
suggested
aggravated
intestinal
damage
through
oxidative
stress.
findings
indicated
caused
more
severe
dysfunction
microbiota
disruption.
effect
was
likely
mediated
by
transfer
acids
signaling
molecules
gut-liver
axis,
ultimately
leading
disorders