The
Green
Sea
turtle
Chelonia
mydas
is
amply
exposed
to
marine
plastics
pollution,
but,
inversely,
also
a
potential
bioindicator
thereof.
Turtle
feces
were
collected
from
two
sites
on
the
northeast
Caribbean
coast
of
Yucatan
Peninsula,
Mexico.
After
organic
matter
degradation
samples,
microplastics
identified
and
quantified
by
stereomicroscope.
Their
morphostructure
was
analyzed
scanning
electron
microscopy
coupled
with
energy
dispersive
X-ray
spectroscopy,
while
their
composition
determined
Fourier
transform
infrared
spectroscopy
Raman
spectroscopy.
Microplastics
(MP)
abundance
ranged
89
±
3
MP.g.-1
in
open
water
samples
4
2
beach
(Kruskal
Wallis=
70.31,
p<
0.001).
Almost
all
particles
blue
transparent
fibers.
nylon,
PVC,
polypropylene,
polyester.
non-invasive
method
used
here
allowed
detection
microplastic
pollution
promising
for
long-term
monitoring.
Environment International,
Journal Year:
2023,
Volume and Issue:
179, P. 108153 - 108153
Published: Aug. 16, 2023
Coastal
habitats
have
been
suggested
to
serve
as
a
sink
for
unaccounted
plastic
debris,
i.e.,
"missing
plastic"
in
the
sea,
and
hence,
hotspot
of
pollution
marine
coastal
environments.
Although
accumulation
debris
may
pose
significant
threats
ecosystems,
we
know
little
about
fate
these
their
ecological
impacts
due
lack
studies
on
plastic-microbe
interactions
habitats,
especially
tropical
In
this
study,
collected
from
14
sites
consisting
various
ecosystems
(seagrass
meadows,
mangrove
forests,
beaches),
ecosystem
(coral
reef)
around
Singapore
characterized
prokaryotic
eukaryotic
microbial
communities
colonized
them.
Our
results
showed
that
composition
plastisphere
intertidal
was
predominantly
influenced
by
sediment
than
materials.
Compared
with
surrounding
seawater,
enriched
potential
degraders,
such
Muricauda,
Halomonas,
Brevundimonas.
The
also
found
host
taxa
play
roles
biogeochemical
cycles
(e.g.,
cyanobacteria,
Erythrobacter),
hygienically
relevant
bacteria
Chryseobacterium,
Brevundimonas),
pathogens
negatively
impact
health
Thraustochytriaceae,
Labyrinthulaceae,
Flavobacterium).
Taken
together,
our
study
provides
valuable
insights
into
highlighting
urgent
need
understand
accumulated
habitats.
Microorganisms,
Journal Year:
2023,
Volume and Issue:
11(6), P. 1461 - 1461
Published: May 31, 2023
Biodegradable
polymers
offer
a
potential
solution
to
marine
pollution
caused
by
plastic
waste.
The
biofilms
that
formed
on
the
surfaces
of
poly(lactide
acid)
(PLA)
and
poly(3-hydroxybutyrate-co-3-hydroxyvalerate)
(PHBV)
were
studied.
Bioplastics
exposed
for
6
months
conditions
in
Mediterranean
Sea,
their
assessed.
presence
specific
PLA
PHBV
degraders
was
also
showed
extensive
areas
with
microbial
accumulations
this
led
higher
surface
densities
than
(4.75
vs.
5.16
log
CFU/cm2).
Both
polymers'
wide
variety
structures,
including
bacteria,
fungi,
unicellular
algae
choanoflagellates.
A
high
bacterial
diversity
observed,
differences
between
two
polymers,
particularly
at
phylum
level,
over
70%
bacteria
affiliated
three
phyla.
Differences
metagenome
functions
detected,
revealing
proteins
involved
biodegradation
biofilms.
Four
isolates
belonging
Proteobacteria
class
identified
as
degraders,
demonstrating
species
polymer
seawater.
No
confirming
its
low
biodegradability
environments.
This
pilot
study
establish
baseline
further
studies
aimed
comprehending
biopolymers.
Processes,
Journal Year:
2024,
Volume and Issue:
12(5), P. 961 - 961
Published: May 9, 2024
Polystyrene
plastics
present
significant
environmental
and
human
health
threats
due
to
their
poor
recyclability
degradability.
However,
leveraging
properties
enhance
material
performance
stands
out
as
one
of
the
most
effective
strategies
for
mitigating
these
issues.
Here,
we
have
employed
recycled
expanded
polystyrene
manufacture
metal–organic
framework/expanded
plastic
composites
(MOF@EPP)
using
an
adverse
solvent
precipitation
method.
This
method
simultaneously
recycles
EPPs
safeguards
moisture-sensitive
MOFs.
Due
exceptional
hydrophobic
EPPs,
HKUST−1@EPP
can
maintain
structural
integrity
even
when
immersed
in
water
30
days.
is
applicable
other
MOFs,
such
MOF−74(Zn)
MIL−53(Al).
The
composite
also
exhibits
desirable
heterogeneous
catalytic
activity
Knoevenagel
condensation
reaction
between
benzaldehyde
acrylonitrile.
conversion
rate
reach
94.9%
within
4
h
at
90
°C
does
not
exhibit
a
decrease
after
six
cycles,
presence
water.
study
only
introduces
novel
concept
recycling
plastics,
but
offers
practical
strategy
safeguarding
Deleted Journal,
Journal Year:
2024,
Volume and Issue:
1(1)
Published: July 14, 2024
The
global
plastic
waste
crisis
has
triggered
the
development
of
novel
methods
for
removal
recalcitrant
polymers
from
environment.
Biotechnological
approaches
have
received
particular
attention
due
to
their
potential
enabling
sustainable,
low-intensity
bioprocesses
which
could
also
be
interfaced
with
microbial
upcycling
pathways
support
emerging
circular
bioeconomy.
However,
low
biodegradation
efficiency
solid
materials
remains
a
bottleneck,
especially
at
mesophilic
conditions
required
one-pot
degradation
and
upcycling.
A
promising
strategy
used
in
nature
address
this
is
localisation
plastic-degrading
microbes
surface
via
biofilm-mediated
association.
This
review
highlights
progress
opportunities
leveraging
these
naturally
occurring
mechanisms
biofilm
formation
other
cell-surface
adhesion
biotechnologies
co-localise
engineered
cells
surfaces.
We
further
discuss
examples
combining
extracellular
expression
enzymes
accelerate
degradation.
Additionally,
we
topic
context
nano-
microplastics
bioremediation
wastewater
finally
propose
future
research
directions
nascent
field.
