Journal of Xenobiotics,
Год журнала:
2025,
Номер
15(3), С. 85 - 85
Опубликована: Июнь 3, 2025
Microplastic
(MP)
contamination
affects
all
environmental
media,
even
in
remote,
unpopulated
regions
of
the
globe.
Many
studies
have
addressed
this
issue
under
various
aspects;
however,
actual
and
definitive
evidence
that
MPs
are
a
cause
human
health
risk
conditions
has
not
been
provided.
MP
decomposition
generates
smaller
nanoplastics
(NPs)
with
different
properties,
closer
to
engineered
nanoparticles
than
MP.
Their
detection
is
more
complex
laborious
MP’s,
and,
as
such,
their
fate
effects
still
poorly
studied.
Advanced
technologies
remove
MP/NPs
from
supply
water
being
investigated,
but
current
indicates
conventional
drinking
treatment
facilities
efficiently
major
part
MPs,
at
least
far
sizes
greater
20
µm.
Notwithstanding
recent
developments
MP/NP
classification
techniques,
moment,
very
few
specifically
address
NPs,
which,
therefore,
deserve
targeted
investigation.
This
paper
addresses
NPs
water,
examining
literature
on
presence
state-of-the-art
assessment
toxicology.
The
also
critically
overviews
for
removal
discusses
present
knowledge
gap
possible
approaches
widespread
issue.
Sustainability,
Год журнала:
2024,
Номер
16(19), С. 8540 - 8540
Опубликована: Сен. 30, 2024
Polyvinyl
chloride
(PVC)
and
polyethylene
terephthalate
(PET)
contribute
significantly
to
global
plastic
waste,
with
only
9%
recycled
in
recent
years.
In
this
work,
these
wastes
were
upcycled
as
functional
fillers
improve
the
rigid
polyurethane
foam
(RPUF)
properties.
To
attain
target,
we
leveraged
intrinsic
polarity
of
C=O
C-Cl
groups
PVC
PET
induce
intermolecular
attractions
N-H
matrix,
evidenced
by
observed
IR
peak
shifts.
This
enhanced
nucleating
effect
during
foaming,
increasing
foams’
compressive
strengths
77%
22%
addition
10%
5%
filler,
respectively.
Furthermore,
increased
volume.
Thus,
collective
utilization
PPW
its
corresponding
impact
on
CO-based
RPUF’s
properties
signifies
a
reduction
carbon
dioxide
emissions
14.15%
17.52%
for
PET,
Moreover,
thermogravimetric
analysis
(TGA)
differential
scanning
calorimetry
(DSC)
revealed
improved
thermal
stability
degradation
profiles
produced
RPUFs.
Overall,
work
highlights
potential
advancement
environmentally
responsible
upcycling
strategies
common
end-of-life
wastes,
while
enhancing
ACS Biomaterials Science & Engineering,
Год журнала:
2024,
Номер
10(11), С. 6751 - 6765
Опубликована: Окт. 9, 2024
As
materials
engineered
to
interact
with
biological
systems
for
medical
purposes,
polymeric
biomedical
have
revolutionized
and
are
indispensable
in
modern
healthcare.
However,
aging
populations
improving
healthcare
standards
worldwide
resulted
ever-increasing
demands
such
biomaterials.
Currently,
many
clinically
used
polymers
derived
from
nonrenewable
petroleum
resources,
thus
spurring
the
need
exploring
alternatives
next
generation
of
sustainable
Other
than
biomass,
this
Perspective
also
spotlights
carbon
dioxide
postuse
plastics
as
viable
resources
potentially
suitable
biomaterial
production.
For
each
alternative
feedstock,
key
recent
developments
practical
considerations
discussed,
including
emerging
applications,
possible
feedstock
sources,
hindrances
toward
translation
adoption.
replacements
petroleum-derived
polymers,
we
explore
how
utilization
these
capitalizes
on
their
intrinsic
physiochemical
material
properties
achieve
desired
therapeutic
effects.
We
hope
that
can
stimulate
further
development
biomaterials
benefits
part
a
circular
economy
minimal
environmental
impact.
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 9, 2025
Abstract
Thermal
energy
regulation
is
a
significant
challenge,
contributing
to
over
30%
of
annual
greenhouse
gas
emission
(GHG)
emissions.
Phase
change
materials
(PCMs)
offer
promising
solution
by
storing
thermal
energy,
which
can
enable
the
reuse
waste
heat
for
heating
and
cooling;
however,
developing
shape‐stabilized
PCMs
remains
crucial.
This
work
investigates
self‐foaming
poly(hydroxy)urethane
(PHU),
derived
from
non‐isocyanate
polyurethane
(NIPU),
as
porous
support
shape‐stabilizing
paraffinic
salt
hydrate
PCMs.
PHU‐encapsulated
exhibited
excellent
stability
repeated
cycles.
with
PCMs,
specifically
calcium
chloride
hexahydrate
(CaCl
2
•6H
O),
achieved
incorporation
5
wt.%
barium
carbonate
(BaCO
3
)
into
PHU
foam.
enabled
stable
cycling
48
cycles
desirable
properties,
i.e.,
melting
point
≈30
°C,
high
enthalpy
(ca.
138
J
g
−1
per
cycle),
consistent
freezing
≈20
making
it
suitable
applications
in
buildings
electric
vehicle
battery
insulation.
Also,
incorporating
graphite
(1.5–10
wt.%)
foam
enhanced
conductivity
CaCl
O
during
cooling
Overall,
approach
detailed
here
offers
carbon‐conscious
chemically
tunable
material
storage.
Biobased
polymers
such
as
cellulose,
chitin/chitosan,
starch,
alginate,
and
lignin
are
making
inroads
sustainable,
environmentally
safe
biodegradable
alternatives
to
synthetic
colloidal
materials.
This
perspective
summarizes
recent
developments
in
preparation
techniques,
identifies
critical
barriers,
proposes
future
directions
for
improving
the
performance
applicability
of
biopolymer
structures.
A
major
focus
is
sustainable
colloids
morphology
a
means
introducing
functionality
without
chemical
modification.
We
discuss
strategies
fabrication
four
distinct
classes
morphologies
from
biobased
materials:
spherical
nonspherical
particles,
fibers/fibrils,
films.
Their
methods
can
be
categorized
into
physical
approaches.
Despite
advancements
these
methods,
challenges
persist
regarding
uniformity,
scalability,
desired
properties,
need
enhance
environmental
sustainability.
Addressing
essential
facilitating
transition
greener,
more
microplastic-free
alternatives.
