Journal of Polymer Science,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 25, 2024
ABSTRACT
The
poly(butylene
adipate‐co‐terephthalate)
(PBAT)
nanofiber
film
prepared
by
electrospinning
method
exhibits
limited
application
in
many
fields
due
to
its
poor
flame
retardancy
and
machinal
property,
despite
being
a
biodegradable
material
with
exceptional
toughness
ductility
properties.
In
this
work,
we
employed
microfluidic
technology
continuously
produce
blue
fluorescent
carbon
dots
(CDs)
on
an
aluminum‐based
chip
using
citrate
ethanolamine
as
precursors.
Subsequently,
utilizing
technology,
the
CDs/PBAT
composite
films
fluorescence
were
situ
reaction.
Interestingly,
compared
pure
PBAT
membranes,
membranes
exhibit
tensile
strength
of
4.31
MPa,
representing
remarkable
increase
3.24
times,
elongation
at
break
491%,
indicating
improvement
1.62
times.
More
importantly,
it
had
demonstrated
that
incorporation
CDs
into
can
achieve
flame‐retardant
effects.
We
firmly
believe
strategy
could
open
up
new
idea
for
synthesis
point
out
direction
meaningful
fabrication
high
property.
Applied Sciences,
Год журнала:
2025,
Номер
15(4), С. 2010 - 2010
Опубликована: Фев. 14, 2025
Microplastics
(MPs)
are
of
great
interest
for
study
because
they
accumulate
in
environmental
systems,
such
as
terrestrial
ones,
which
include
agricultural
soils.
Unfortunately,
recent
years,
due
to
the
COVID-19
pandemic,
many
face
masks
have
been
discarded
environment,
causing
an
increase
this
type
MP.
This
accumulation
can
influence
physicochemical
and
biological
properties
soil
derived
from
its
microbial
activity.
In
present
study,
different
concentrations
MPs
commercial
polypropylene
(PP)
were
mixed
with
soil.
Four
treatments
following
MP
studied:
T1:
0%,
T2:
0.5%,
T3:
1%,
T4:
5%
w
w−1.
C
N
mineralization
experiments
carried
out
over
time
at
microcosm
level,
where
physicochemical,
enzymatic
ecophysiological
indicators
analyzed.
Based
on
analyzed
indicators,
a
quality
index
called
Unified
Weighted
Additive
Index
(SQIu)
was
developed.
The
resulting
SQIu
showed
Nmin
indicator
closest
relationship
soils
MPs.
Once
determined,
T4
treatment
significant
differences
(p≤0.05)
respect
control,
presenting
higher
value.
importance
conducting
more
research
dynamics
types,
sizes,
help
establish
strategies
measure
effects
local,
national,
international
levels.
Abstract
The
long‐term
persistence
of
extracellular
DNA
in
soils
is
well‐documented,
yet
its
impacts
on
analyzing
soil
microbial
abundance
and
diversity
remain
controversial.
This
primarily
arises
from
our
limited
comprehension
regarding
the
reliability
various
methods
for
studying
live
microbiotas.
In
this
study,
we
systematically
compared
assessed
commonly
used
diversity,
including
alkaline
buffer
washing,
propidium
monoazide
(PMA)
treatment,
DNase
pre‐digestion,
rRNA‐based
analysis,
using
collected
a
wide
range
locations
across
China.
We
found
that
elimination
substantially
influenced
analysis
prokaryotic
abundance,
community
profiles,
co‐occurrence
patterns,
but
not
assembly
mechanisms.
However,
effects
varied
considerably
different
methods.
pre‐digestion
PMA
treatment
led
to
significant
decreases
while
washing
had
negligible
effects.
As
richness,
significantly
decreased
increased
it,
respectively.
Although
67.8%
amplicon
sequence
variants
were
shared,
differences
their
relative
observed
While
removal
simplified
network,
it
also
enhanced
robustness.
According
assessment
experiments,
showed
highest
efficiency
characterizing
accuracy.
Concerns
other
include
low
efficiency,
instability,
uncertainties
result
explanation.
study
suggests
characterized
by
exhibit
high
variability,
recommended
communities.
These
findings
provide
crucial
information
optimizing
microbiome
research
methodologies.
Frontiers in Microbiology,
Год журнала:
2024,
Номер
15
Опубликована: Окт. 9, 2024
Introduction
The
impacts
of
plastic
pollution
on
soil
ecosystems
have
emerged
as
a
significant
global
environmental
concern.
progress
in
understanding
how
affects
microbial
communities
and
ecological
functions
is
essential
for
addressing
this
issue
effectively.
Methods
A
bibliometric
analysis
was
conducted
the
literature
from
Web
Science
Core
Collection
database
to
offer
valuable
insights
into
dynamics
trends
field.
Results
To
date,
effects
residues
enzymatic
activities,
biomass,
respiration
rate,
community
diversity
been
examined,
whereas
microbes
are
still
controversial.
Discussion
include
comprehensive
examination
combined
residue
properties
(Type,
element
composition,
size
age),
(soil
texture,
pH)
at
environmentally
relevant
concentrations
with
various
exposure
durations
under
field
conditions
future
studies
crucial
holistic
impact
ecosystems.
Risk
assessment
pollution,
particularly
nanoplasctics,
perspective
food
web
ecosystem
multifunctioning
also
needed.
By
critical
knowledge
gaps,
scholars
can
play
pivotal
role
developing
strategies
mitigate
risks
posed
by
microorganisms.
