Materials,
Journal Year:
2024,
Volume and Issue:
17(21), P. 5157 - 5157
Published: Oct. 23, 2024
Magnesium
(Mg)
has
attracted
considerable
attention
as
a
biodegradable
material
for
medical
implants
owing
to
its
excellent
biocompatibility,
mitigating
long-term
toxicity
and
stress
shielding.
Nevertheless,
challenges
arise
from
rapid
degradation
low
corrosion
resistance
under
physiological
conditions.
To
overcome
these
challenges,
titanium
(biocompatibility
resistance)
been
integrated
into
Mg.
The
incorporation
of
significantly
improves
mechanical
properties,
thereby
enhancing
performance
in
biological
settings.
Mg–Ti
alloys
are
produced
through
alloying
spark
plasma
sintering
(SPS).
SPS
technique
transforms
powder
mixtures
bulk
materials
while
preserving
structural
integrity,
resulting
enhanced
resistance,
particularly
Mg80-Ti20
alloy
simulated
body
fluids.
Moreover,
revealed
no
more
when
assessed
on
pre-osteoblastic
cells.
Furthermore,
the
ability
Mg–Ti-based
create
composites
with
polymers
such
PLGA
(polylactic-co-glycolic
acid)
widen
their
biomedical
applications
by
regulating
ensuring
pH
stability.
These
promote
temporary
orthopaedic
implants,
offering
initial
load-bearing
capacity
during
healing
process
fractures
without
requiring
second
surgery
removal.
address
scalability
constraints,
further
research
is
necessary
investigate
additional
consolidation
methods
beyond
SPS.
It
essential
evaluate
relationship
between
loading
confirm
adequacy
environments.
This
review
article
highlights
importance
characterization
evaluation
alloys,
reinforcing
applicability
fracture
fixation
various
implants.
Macromolecular Rapid Communications,
Journal Year:
2023,
Volume and Issue:
44(5)
Published: Jan. 17, 2023
Biodegradation
of
polymers
in
composting
conditions
is
an
alternative
end-of-life
(EoL)
scenario
for
contaminated
materials
collected
through
the
municipal
solid
waste
management
system,
mainly
when
mechanical
or
chemical
methods
cannot
be
used
to
recycle
them.
Compostability
certification
requirements
are
time-consuming
and
expensive.
Therefore,
approaches
accelerate
biodegradation
these
simulated
can
facilitate
speed
up
evaluation
selection
potential
compostable
polymer
alternatives
inform
faster
biodegrade
real
composting.
This
review
highlights
recent
trends,
challenges,
future
strategies
by
modifying
properties/structure
compost
environment.
Both
abiotic
biotic
show
accelerating
biodegradable
polymers.
Abiotic
methods,
such
as
incorporation
additives,
reduction
molecular
weight,
size
reactive
blending,
potentially
most
straightforward,
providing
a
level
technology
that
allows
easy
adoption
adaptability.
Novel
including
concept
self-immolative
triggering
scission
chains
specific
conditions,
increasingly
sought.
In
terms
dispersion/encapsulation
enzymes
during
processing
step,
biostimulation
environment,
bioaugmentation
with
microbial
strains
process
promising
biodegradation.
Chemosphere,
Journal Year:
2024,
Volume and Issue:
355, P. 141749 - 141749
Published: March 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.
Polymer Degradation and Stability,
Journal Year:
2024,
Volume and Issue:
222, P. 110698 - 110698
Published: Feb. 13, 2024
In
recent
years,
enzymatic
degradation
and
biodegradation
have
attracted
great
interest
in
the
recycling
of
plastic
waste.
Compared
to
other
techniques,
they
numerous
advantages
such
as
mild
reaction
conditions
both
terms
temperature
pressure
prevention
use
toxic
solvents.
The
monomers
formed
during
processes
can
result
chemicals
with
high
added
value,
which
be
purified
reused
at
an
industrial
level.
Unfortunately,
factors,
environmental
related
polymer's
nature,
influence
biodegradation,
making
them
very
complex
processes.
An
effective
way
increase
consists
subjecting
material
pretreatments
various
kinds,
capable
inducing
modifications
polymer
it
more
susceptible
action
microorganisms
or
enzymes.
This
review
has
objective
analyzing
literature
last
15
identify
most
efficient
on
base
chemistry,
also
considering
technical-economic
aspects.
