Environmental Science & Technology,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 24, 2025
Nano/microplastics
(N/MPs)
induce
phytotoxicity
and
represent
a
significant
global
threat
to
terrestrial
agricultural
ecosystems.
However,
the
defense
mechanisms
of
plants
against
different-sized
N/MPs
remain
largely
unknown.
To
address
this
knowledge
gap,
we
investigated
interactions
between
polystyrene
(PS)
NPs
(50
100
nm)
PS-MPs
(200
500
with
taro
(Colocasia
esculenta).
We
found
that
PS
particles
varying
sizes
exhibited
differential
root
adsorption
penetration,
PS-NPs
capable
penetrating
epidermis,
whereas
were
totally
excluded.
Notably,
demonstrated
capacity
recognize
different
responded
degrees
resistance.
In
reaction
more
toxic
50
nm
PS-NPs,
roots
mobilized
robust
mechanism
three
levels:
molecular,
compositional,
ultrastructural.
This
was
achieved
by
activating
lignin
synthesis,
carbohydrate
metabolism,
lipid
transport,
resulting
in
doubling
lignified
region
increases
cell
wall
thickness
116%,
56.3%,
22.5%
exodermis,
cortex,
respectively.
Consequently,
excluded
all
four
outside
vascular
tissue
prevented
contamination
corms.
Our
study
provides
new
insights
into
interaction
demonstrates
crucial
role
barriers
sustaining
food
safety.
Frontiers in Public Health,
Год журнала:
2024,
Номер
12
Опубликована: Май 9, 2024
Traditional
environmental
epidemiology
has
consistently
focused
on
studying
the
impact
of
single
exposures
specific
health
outcomes,
considering
concurrent
as
variables
to
be
controlled.
However,
with
continuous
changes
in
environment,
humans
are
increasingly
facing
more
complex
multi-pollutant
mixtures.
In
this
context,
accurately
assessing
mixtures
become
a
central
concern
current
research.
Simultaneously,
development
and
optimization
statistical
methods
offer
robust
support
for
handling
large
datasets,
strengthening
capability
conduct
in-depth
research
effects
multiple
health.
order
examine
complicated
exposure
mixtures,
we
introduce
commonly
used
their
developments,
such
weighted
quantile
sum,
bayesian
kernel
machine
regression,
toxic
equivalency
analysis,
others.
Delineating
applications,
advantages,
weaknesses,
interpretability
results.
It
also
provides
guidance
researchers
involved
aiding
them
selecting
appropriate
utilizing
R
software
accurate
comprehensive
assessments
human
Polymers,
Год журнала:
2024,
Номер
16(19), С. 2807 - 2807
Опубликована: Окт. 3, 2024
The
extensive
use
of
polymeric
materials
has
resulted
in
significant
environmental
pollution,
prompting
the
need
for
a
deeper
understanding
their
degradation
processes
and
impacts.
This
review
provides
comprehensive
analysis
environment
impact
on
health
experimental
animals.
It
identifies
common
polymers,
delineates
pathways,
describes
resulting
products
under
different
conditions.
covers
physical,
chemical,
biological
mechanisms,
highlighting
complex
interplay
factors
influencing
these
processes.
Furthermore,
it
examines
implications
products,
using
animals
as
proxies
assessing
potential
risks
to
human
health.
By
synthesizing
current
research,
focuses
studies
related
small
organisms
(primarily
rodents
invertebrates,
supplemented
by
fish
mollusks)
explore
effects
polymer
living
underscores
urgency
developing
implementing
effective
waste
management
strategies.
These
strategies
are
crucial
mitigating
adverse
impacts
degradation,
thus
promoting
more
sustainable
interaction
between
activities
natural
environment.
Heliyon,
Год журнала:
2024,
Номер
10(7), С. e29070 - e29070
Опубликована: Апрель 1, 2024
Banana
pseudo-stem,
often
considered
as
an
underutilized
plant
part
was
explored
a
potential
reinforced
material
to
develop
eco-friendly
biofilm
for
food
packaging
applications.
In
this
study,
Microcrystalline
cellulose
(MCC)
extracted
from
banana
pseudo-stem
by
alkali
and
acid
hydrolysis
treatment.
The
MCC
used
in
different
concentrated
polyvinyl
alcohol
(PVA)
matrix
alone
well
both
PVA
Carboxymethyl
Cellulose
(CMC)
solvent
casting
method.
synthesized
powder
characterized
scanning
electron
microscope
ensure
its
microcrystalline
structure
observe
surface
morphology.
biofilms
composed
of
MCC,
PVA,
CMC
were
assessed
through
Fourier-transform
infrared
spectroscopy
(FTIR),
mechanical
properties,
water
content,
solubility,
swelling
degree,
moisture
barrier
property
(Water
Vapor
Permeability
-
WVP),
light
(Light
Transmission
Transparency).
FTIR
analysis
showed
the
rich
bonding
between
materials
biofilms.
film
incorporating
combination
CMC,
(S6)
exhibited
highest
tensile
strength
at
26.67
±
0.152
MPa,
making
it
particularly
noteworthy
applications
packaging.
incorporation
increased
strength.
WVP
content
films
observed
low
among
MCC-induced
which
is
parallel
other
findings.
lowest
1%
with
(S4)
(0.223
0.020
10−9
g/Pahm).
S6
also
considerably
low.
MCC-incorporated
acted
good
UV
barrier.
Transmittance
induced
range
on
average
38%
(S2),
36%
6%
almost
lower
than
control
films.
demonstrated
capacity
(1.42%)
indicating
significantly
solubility
film.
formulated
mixing
ahead
terms
characteristics
Also,
outcomes
study
point
out
that
can
be
great
natural
resource
regard,
proves
excellent
source
waste
utilization.
Abstract
Microplastic
(MP)
pollution
in
terrestrial
ecosystems
is
gaining
attention,
but
there
limited
research
on
its
effects
leafy
vegetables
when
combined
with
heavy
metals.
This
study
examines
the
impact
of
three
MP
types—polyethylene
(PE),
polyethylene
terephthalate
(PET),
and
polystyrene
(PS)—at
concentrations
0.02,
0.05,
0.1%
w/w,
along
cadmium
(Cd)
biochar
(B),
germination,
growth,
nutrient
absorption,
metal
uptake
red
amaranth
(
Amaranthus
tricolor
L.).
We
found
that
different
types
did
not
negatively
affect
germination
parameters
like
rate,
relative
vigor,
speed.
However,
they
increased
phytotoxicity
decreased
stress
tolerance
compared
to
an
untreated
control
(CK1).
The
presence
MPs,
particularly
PS
type,
reduced
phosphorus
potassium
while
enhancing
Cd
uptake.
For
example,
treatments
0.02
CdB,
0.05
0.1
CdB
content
A.
seedlings
by
158%,
126%,
44%,
respectively,
treatment
(CK2).
Additionally,
contamination
led
plant
height,
leaf
dry
matter
content,
fresh
weights,
indicating
adverse
growth.
Moreover,
MPs
bioconcentration
factors
translocation
for
Cd,
suggesting
might
act
as
carriers
absorption
plants.
On
positive
side,
addition
improved
several
root
parameters,
including
length,
volume,
surface
area,
number
tips
potential
benefits
Our
shows
combination
reduces
growth
increases
risk
food
crops.
Further
needed
understand
how
various
species,
which
will
aid
developing
targeted
mitigation
strategies
exploring
mechanisms
through
Finally,
investigating
application
conjunction
other
amendments
mitigating
these
could
be
key
addressing
agricultural
systems.
