Environmental Science & Technology,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 23, 2024
Microbial
interactions
form
microfood
webs,
crucial
for
ecological
functions.
The
steady
state
of
these
shaped
by
cooperation
and
competition
among
trophic
levels,
prevents
pathogen
proliferation
invasion,
maintaining
soil
health.
Combined
pollutants
pose
a
widespread
environmental
issue,
exerting
significant
pressure
on
webs.
However,
understanding
how
webs
respond
to
combined
in
plastispheres,
an
emerging
niche,
remains
limited.
This
study
explores
bacteria,
fungi,
protists,
examining
their
effects
potential
pathogens
three
types
amended
with
Cu
or
disinfectant,
along
using
microcosm
experiment.
Pollutant
exposure
disrupts
trophic-level
through
bottom-up
top-down
regulation
soils
respectively.
Microfood
web
network
topology
parameters
prove
more
sensitive
pollutant
stress
than
indicators
from
single
community
composition.
causes
greater
disruption
the
(Cu
didecyl
dimethylammonium
chloride
(DDAC)).
Plastisphere
reinforces
negative
impacts
network,
escalating
pathogenic
bacteria.
Overall,
this
deepens
our
responses
under
plastispheres
provides
valuable
insights
health
risk
assessments
pollutants.
Journal of Polymer Science,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 7, 2025
ABSTRACT
In
order
to
improve
the
crystallization
properties
and
toughness
of
PLA
film,
poly(ethylene
glycol)
(PEG)‐modified
carbon
dots
(CDs)
were
synthesized
as
nanofillers
achieve
this
goal.
PEG‐CDs
characterized
by
Fourier
transform
infrared
spectrometer
(FTIR),
static
contact
angle
measurement,
X‐ray
photoelectron
spectroscopy
(XPS),
transmission
electron
microscopy
(TEM),
thermogravimetric
analyzer
(TGA),
results
demonstrated
that
PEG
chains
successfully
grafted
onto
surface
CDs.
PEG‐CDs/PLA
composite
films
prepared
extrusion
blow
molding
technology,
their
mechanical
properties,
thermal
stability,
anti‐aging
performance,
water
vapor
barrier
investigated.
The
showed
elongation
at
break
(0.05
wt%)
increased
from
19.43%
(for
pure
film)
107.75%,
improved
varying
degrees
compared
with
those
film.
rheological
behavior
analysis
film
revealed
had
a
plasticizing
effect
on
PLA,
which
is
one
possible
cause
for
over
Moreover,
proved
could
not
only
crystallinity
but
also
accelerate
its
rate.
Molecular
dynamics
simulations
confirmed
presence
strong
interactions
between
thereby
enhancing
overall
performance
films.
