The Journal of Physical Chemistry C,
Journal Year:
2024,
Volume and Issue:
128(50), P. 21531 - 21538
Published: Dec. 10, 2024
Chitosan
is
a
nontoxic
biopolymer
with
many
potential
biomedical
and
material
applications
due
to
its
biodegradability,
biocompatibility,
antimicrobial
properties.
Here,
fully
atomistic
molecular
dynamics
simulations
enhanced
sampling
methods
have
been
used
study
the
adsorption
mechanism
of
chitosan
oligomers
on
silica
surface
from
an
aqueous
solution.
The
free
energy
was
calculated
be
0.6
kcal
mol–1
per
monomer
in
0.15
mol
L–1
solution,
which
comparable
kBT
at
room
temperature.
loading
capacity
found
0.094
mg
m–2,
it
dominated
by
charge
compensation.
Furthermore,
hydrogen
bonding
between
analyzed.
nitrogen
hydroxyl
group
oxygen
atoms
were
main
contributors
silica.
These
findings
guide
experimental
design
chitosan-coated
nanoparticles
for
such
as
drug
delivery
or
additives
food
packaging.
Foods,
Journal Year:
2024,
Volume and Issue:
13(12), P. 1875 - 1875
Published: June 14, 2024
Reducing
postharvest
losses
offers
a
significant
opportunity
to
enhance
food
availability
without
requiring
extra
production
resources.
A
substantial
portion
of
cereal
grain
goes
waste
annually
due
lack
science-based
knowledge,
unconscious
handling
practices,
suboptimal
technical
efficiency,
and
inadequate
infrastructure.
This
article
extensively
reviews
occurring
during
operations
across
various
crops,
examining
diverse
in
different
countries.
Recent
advancements
technology
research
are
thoroughly
discussed.
The
primary
obstacles
challenges
hindering
the
adoption
implementation
technologies
also
explored.
appropriate
relies
on
specific
factors,
including
kind
locales,
seasons,
existing
environmental
socioeconomic
conditions.
Carbohydrate Polymers,
Journal Year:
2025,
Volume and Issue:
357, P. 123459 - 123459
Published: March 3, 2025
In
recent
years,
significant
advancements
in
biopolymer-based
packaging
have
emerged
as
a
response
to
the
environmental
challenges
posed
by
traditional
petroleum-based
materials.
The
drive
for
sustainable,
renewable,
and
degradable
alternatives
fossil-based
components
industry
has
led
an
increased
focus
on
chitosan,
second
most
abundant
biopolymer
after
cellulose.
Chitosan
offers
intrinsic
properties
such
biodegradability,
biocompatibility,
antimicrobial
activity,
excellent
barrier
film-forming
capabilities,
positioning
it
ideal
candidate
food
applications.
However,
limitations
including
inferior
mechanical,
thermal,
properties,
brittleness
compared
conventional
plastics
limiting
its
widespread
adoption
industry.
been
extensively
utilized
various
forms,
particularly
nanocomposites
incorporating
metal
nanoparticles,
leading
chitosan-based
nanocomposite
films/coatings
that
synergistically
combine
advantageous
of
both
chitosan
nanoparticles.
Through
in-depth
analysis
current
research
(primarily
last
5
years),
this
review
delves
into
physicochemical,
sensing,
innovative
material.
This
will
provide
insights
potential
toxicity
impact
nanoparticle
migration,
well
prospects
associated
with
chitosan-metal/metal
oxide
films
development
sustainable
solutions.
Scientific Reports,
Journal Year:
2024,
Volume and Issue:
14(1)
Published: Aug. 13, 2024
Abstract
This
study
aimed
to
investigate
the
biodegradation
behaviour
of
starch/nanocellulose/black
tea
extract
(SNBTE)
films
in
a
30-day
soil
burial
test.
The
SNBTE
were
prepared
by
mixing
commercial
starch,
nanocellulose
(2,
4,
and
6%),
an
aqueous
solution
black
simple
casting
process.
chemical
morphological
properties
before
after
characterized
using
following
analytical
techniques
such
as
field
emission
scanning
electron
microscopy
(FESEM),
energy-dispersive
X-ray
spectroscopy
(EDX),
fourier
transform
infrared
(FTIR).
changes
composition,
namely
pH,
electrical
conductivity
(EC),
moisture
content,
water
holding
capacity
(WHC),
respiration,
total
nitrogen,
weight
mean
diameter
(MDW),
geometric
(GMD),
result
process,
also
estimated.
results
showed
that
exhibited
considerable
biodegradability
(35–67%)
within
30
days
while
increasing
nutrients.
addition
reduced
rate
due
its
polyphenol
which
likely
resulted
reduction
microbial
activity.
(2–6%
starch)
increased
tensile
strength,
but
decreased
elongation
at
break
films.
These
suggest
starch
are
not
only
biodegradable
under
conditions
positively
contribute
health,
highlighting
their
potential
environmentally
friendly
alternative
traditional
plastic
packaging
industry.
Polymers,
Journal Year:
2024,
Volume and Issue:
16(18), P. 2561 - 2561
Published: Sept. 10, 2024
Tremendously
negative
effects
have
been
generated
in
recent
decades
by
the
continuously
increasing
production
of
conventional
plastics
and
inadequate
management
their
waste
products.
This
demands
materials
within
a
circular
economy,
easy
to
recycle
biodegrade,
minimizing
environmental
impact
cost
competitiveness.
Bioplastics
represent
sustainable
alternative
this
scenario.
However,
replacement
must
be
addressed
considering
several
aspects
along
lifecycle,
from
bioplastic
processing
final
application
product.
In
review,
using
different
additives,
biomass
sources,
techniques
on
mechanical
thermal
behavior,
as
well
biodegradability,
bioplastics
is
discussed.
The
importance
bioplasticizers
highlighted,
besides
studying
role
surfactants,
compatibilizers,
cross-linkers,
coupling
agents,
chain
extenders.
Cellulose,
lignin,
starch,
chitosan,
composites
are
analyzed
part
non-synthetic
considered.
Throughout
study,
emphasis
use
well-established
manufacturing
processes,
such
extrusion,
injection,
compression,
or
blow
molding,
since
these
ones
that
satisfy
quality,
productivity,
requirements
for
large-scale
industrial
production.
Particular
attention
also
given
fused
deposition
modeling,
additive
technique
nowadays
not
only
used
making
prototypes,
but
it
being
integrated
into
development
parts
wide
variety
biomedical
applications.
Finally,
recyclability
commercial
discussed,
some
future
perspectives
challenges
bio-based
with
conclusion
technological
innovations,
economic
incentives,
policy
changes
could
coupled
individually
driven
solutions
mitigate
impacts
associated
plastics.
