Chemical Reviews,
Год журнала:
2023,
Номер
123(9), С. 5612 - 5701
Опубликована: Март 14, 2023
Plastics
are
everywhere
in
our
modern
way
of
living,
and
their
production
keeps
increasing
every
year,
causing
major
environmental
concerns.
Nowadays,
the
end-of-life
management
involves
accumulation
landfills,
incineration,
recycling
to
a
lower
extent.
This
ecological
threat
environment
is
inspiring
alternative
bio-based
solutions
for
plastic
waste
treatment
toward
circular
economy.
Over
past
decade,
considerable
efforts
have
been
made
degrade
commodity
plastics
using
biocatalytic
approaches.
Here,
we
provide
comprehensive
review
on
recent
advances
enzyme-based
biocatalysis
design
related
processes
recycle
or
upcycle
plastics,
including
polyesters,
polyamides,
polyurethanes,
polyolefins.
We
also
discuss
scope
limitations,
challenges,
opportunities
this
field
research.
An
important
message
from
that
polymer-assimilating
enzymes
very
likely
part
solution
reaching
Chemical Society Reviews,
Год журнала:
2022,
Номер
52(1), С. 277 - 317
Опубликована: Дек. 15, 2022
The
review
presents
the
synthesis,
properties
and
applications
of
sustainable
cycloaliphatic
polyurethanes
from
various
renewable
building
blocks
such
as
biobased
terpenes,
carbohydrates,
fatty
acids
cholesterol
or
plastic
wastes
derivatives.
Chemical Reviews,
Год журнала:
2024,
Номер
124(5), С. 2327 - 2351
Опубликована: Фев. 26, 2024
Polyethylene
deconstruction
to
reusable
smaller
molecules
is
hindered
by
the
chemical
inertness
of
its
hydrocarbon
chains.
Pyrolysis
and
related
approaches
commonly
require
high
temperatures,
are
energy-intensive,
yield
mixtures
multiple
classes
compounds.
Selective
cleavage
reactions
under
mild
conditions
(
Chemosphere,
Год журнала:
2024,
Номер
355, С. 141749 - 141749
Опубликована: Март 21, 2024
Plastic
pollution
has
become
a
major
global
concern,
posing
numerous
challenges
for
the
environment
and
wildlife.
Most
conventional
ways
of
plastics
degradation
are
inefficient
cause
great
damage
to
ecosystems.
The
development
biodegradable
offers
promising
solution
waste
management.
These
designed
break
down
under
various
conditions,
opening
up
new
possibilities
mitigate
negative
impact
traditional
plastics.
Microbes,
including
bacteria
fungi,
play
crucial
role
in
bioplastics
by
producing
secreting
extracellular
enzymes,
such
as
cutinase,
lipases,
proteases.
However,
these
microbial
enzymes
sensitive
extreme
environmental
temperature
acidity,
affecting
their
functions
stability.
To
address
challenges,
scientists
have
employed
protein
engineering
immobilization
techniques
enhance
enzyme
stability
predict
structures.
Strategies
improving
substrate
interaction,
increasing
thermostability,
reinforcing
bonding
between
active
site
substrate,
refining
activity
being
utilized
boost
functionality.
Recently,
bioengineering
through
gene
cloning
expression
potential
microorganisms,
revolutionized
biodegradation
bioplastics.
This
review
aimed
discuss
most
recent
strategies
modifying
bioplastic-degrading
terms
functionality,
thermostability
enhancement,
binding
site,
with
other
improvement
surface
action.
Additionally,
discovered
exoenzymes
metagenomics
were
emphasized.
Polymers,
Год журнала:
2025,
Номер
17(5), С. 603 - 603
Опубликована: Фев. 24, 2025
Plastics,
particularly
synthetic
organic
polymers,
have
become
indispensable
in
modern
life,
yet
their
large-scale
production
has
led
to
significant
environmental
challenges
due
persistent
waste.
Traditional
mechanical
recycling
methods
proven
insufficient
addressing
these
issues.
This
review
explores
recent
advancements
polymer
recycling,
focusing
on
chemical
and
biological
processes,
such
as
pyrolysis,
depolymerization,
enzyme-based
degradation,
which
offer
more
efficient
sustainable
alternatives.
Within
the
framework
of
a
circular
economy,
also
examines
strategies
like
closed-loop
plastic
economies.
These
developments
represent
critical
steps
toward
creating
practices.
The
final
chapter
includes
Quarterly
Report
2024
plastics,
providing
an
up-to-date
overview
current
state
its
trends.
Materials,
Год журнала:
2025,
Номер
18(8), С. 1842 - 1842
Опубликована: Апрель 17, 2025
The
article
examines
the
possibility
of
using
ophthalmic
lens
waste
(OLW)
as
a
filler
in
styrene–butadiene
rubber
(SBR)
composites
varying
proportions.
It
analyzes
impact
OLW
on
composites’
rheological,
structural,
morphological,
mechanical,
and
thermal
properties.
Results
show
that
addition
does
not
significantly
alter
vulcanization
time,
leading
to
savings
during
processing.
crosslink
densities,
determined
by
swelling
method
an
organic
solvent
mechanical
behavior
elastomers,
increased
with
incorporation
OLW,
suggesting
filler/polymeric
matrix
interaction.
Lorenz–Parks
model
confirmed
matrix–filler
interaction,
although
it
was
insufficient
substantially
improve
reinforcement,
mainly
acting
filler.
Thermogravimetric
tests
revealed
good
stability,
but
dynamic
analysis
indicated
reduced
damping
Spectroscopic
lack
molecular
bonding
between
polymer
study
suggests
optimal
content
is
10
20
phr,
enabling
production
new
composite.
Overall,
incorporating
into
vulcanized
SBR
offers
sustainable
cost-effective
approach
reusing
industrial
production,
providing
environmentally
friendly
alternative
for
industry.
