IntechOpen eBooks,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 10, 2024
This
chapter
offers
a
comprehensive
overview
of
electrospinning,
versatile
technique
for
fabricating
nanofibers
with
exceptional
properties.
It
delves
into
the
intricate
mechanisms
governing
fiber
formation,
emphasizing
importance
understanding
these
processes
to
optimize
characteristics.
The
discusses
influence
polymer
solution
properties,
processing
variables,
and
environmental
conditions
on
morphology
performance.
explores
innovative
strategies
creating
hierarchical
nanostructures,
primary
secondary
structures,
which
significantly
enhance
functional
properties
nanofibers.
Post-modification
techniques,
including
chemical
modification,
physical
nanoparticle
incorporation,
are
also
discussed
further
tailor
specific
applications.
highlights
significance
modeling
optimization
methods
in
achieving
desired
nanofiber
characteristics,
ultimately
enabling
their
use
various
fields,
such
as
tissue
engineering,
drug
delivery,
filtration,
energy
Abstract
Gliomas
are
the
most
common
primary
tumors
of
central
nervous
system,
with
glioblastoma
multiforme
(GBM)
having
highest
incidence,
and
their
therapeutic
efficacy
depends
primarily
on
extent
surgical
resection
postoperative
chemotherapy.
The
role
intracranial
blood–brain
barrier
occurrence
drug‐resistant
gene
O6‐methylguanine‐DNA
methyltransferase
have
greatly
limited
chemotherapeutic
agents
in
patients
GBM
made
it
difficult
to
achieve
expected
clinical
response.
In
recent
years,
rapid
development
nanotechnology
has
brought
new
hope
for
treatment
tumors.
Nanoparticles
(NPs)
shown
great
potential
tumor
therapy
due
unique
properties
such
as
light,
heat,
electromagnetic
effects,
passive
targeting.
Furthermore,
NPs
can
effectively
load
drugs,
significantly
reduce
side
effects
improve
efficacy,
showing
chemotherapy
glioma.
this
article,
we
reviewed
mechanisms
glioma
drug
resistance,
physicochemical
NPs,
advances
resistance.
We
aimed
provide
perspectives
Journal of Thermoplastic Composite Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 1, 2024
The
growing
demand
for
antibacterial
materials,
particularly
biomedical
and
packaging
applications,
has
prompted
significant
interest
in
biodegradable
alternatives
to
traditional
plastics.
Among
these,
poly(lactic
acid)
(PLA)
is
a
biocompatible
polymer
that
increasingly
being
recognized
as
promising
matrix
material
the
development
of
functional
nanocomposites.
Notably,
incorporation
zinc
oxide
(ZnO)
nanoparticles
into
PLA
matrices
enhances
their
functionality,
providing
effective
solutions
against
both
Gram-positive
Gram-negative
bacteria.
However,
challenges
persist
manufacturing
PLA/ZnO
nanocomposites,
including
achieving
uniform
nanoparticle
dispersion,
ensuring
interfacial
compatibility,
addressing
scalability
issues
industrial
applications.
Moreover,
ongoing
scientific
debates
regarding
exact
mechanisms
ZnO,
such
reactive
oxygen
species
(ROS)
generation,
physical
disruption
bacterial
membranes,
ion
release,
complicate
efforts
optimize
these
materials.
This
review
summarizes
current
state
research
on
exploring
discussions
mechanisms.
Consequently,
by
identifying
unresolved
questions
consolidating
existing
knowledge,
this
provides
valuable
insights
researchers
engineers
seeking
advance
ultimately
contributing
global
health
environmental
challenges.
Journal of Applied Polymer Science,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 1, 2025
ABSTRACT
Polylactic
acid
(PLA)
exhibits
excellent
biocompatibility
and
degradability
but
suffers
from
brittleness,
low
toughness,
flammability.
In
this
study,
a
novel
one‐dimensional
magnesium‐based
inorganic/organic
hybrid
flame
retardant
filler
was
synthesized
by
grafting
9,10‐dihydro‐9‐oxa‐10‐phosphaphenanthrene‐10‐oxide
(DOPO)
onto
magnesium
sulfate
(MOS)
whiskers
modified
with
vinyltrimethoxysilane
(VTMS),
which
can
be
melt‐blended
into
PLA
to
enhance
its
retardancy
mechanical
properties.
This
article
uses
x‐ray
diffraction
(XRD),
scanning
electron
microscope
(SEM),
Fourier
transform
infrared
spectroscopy
(FTIR),
photoelectron
(XPS),
thermogravimetric
analysis‐derivative
thermogravimetry
(TG‐DTG),
analysis.
The
of
significantly
improves
the
increase
DOPO‐MOS/PLA
content,
combustion
grade
increases
FH‐3
FH‐1,
while
melt
dripping
decreases.
Carbon
layer
analysis
indicates
that
effect
is
attributed
condensation
gas‐phase
suppression.
At
lower
addition
level,
specifically
when
amount
2
parts
per
hundred
resin
weight
(phr),
optimal
impact
strength
reaches
8.22
kJ/m
,
bending
10.91
MPa.
Furthermore,
increased
crystallinity
PLA,
reaching
maximum
relative
35.23%.
provides
reference
for
exploring
new
organic/inorganic
additives.
Journal of Achievements of Materials and Manufacturing Engineering,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 1, 2025
Study
explored
the
effects
of
ageing,
induced
through
artificial
weathering,
on
physical,
mechanical,
and
structural
properties
polypropylene
nonwovens
produced
using
spun-bonded
technique
modified
with
iron
stearate
as
a
photodegradant.Key
parameters
such
mass
per
unit
area,
apparent
density,
air
permeability,
tensile
strength,
chemical
structure,
crystallinity
index
were
analysed
to
evaluate
matematerials’behaviour
during
ageing
assess
their
potential
agrotextiles.The
results
revealed
that
initial
stages
led
partial
reorganisation,
manifested
by
increased
improved
mechanical
properties.
However,
extended
caused
significant
deterioration
in
these
due
progressive
degradation.
Reduced
crystallinity,
decreased
lower
permeability
are
correlated
crystalline
phase
breakdown
polymer
structures.Despite
degradation,
PP
demonstrated
favourable
for
agricultural
applications.
Their
high
strength
stability
make
them
effective
soil
protection,
moisture
retention,
weed
suppression.The
gradual
degradation
under
environmental
conditions
offers
an
advantage
eliminating
need
manual
removal
at
end
season,
facilitating
microbial
breakdown,
reducing
long-term
impact.Analysis
allowed
behaviour
assessment
concluding
durability
application.
PP-based
photodegradants
balance
functional
friendliness.
optimising
composition
meet
specific
requirements
is
essential
ensure
performance
sustainable
biodegradation
after
use.
Materials,
Journal Year:
2024,
Volume and Issue:
17(6), P. 1389 - 1389
Published: March 18, 2024
Recently,
short-fiber-reinforced
thermoplastic
composites
(SFRTPCs)
have
been
playing
a
more
and
crucial
role
in
the
application
of
automotive
interior
materials
due
to
their
advantages
low
density
environmental
resistance
properties.
However,
relevant
mechanical
properties
need
be
optimized.
Previous
investigations
revealed
that
surface
modification
fibers
is
useful
improve
In
this
work,
carbon
fiber
(CF)-reinforced
polylactic
acid
(PLA)
modified
with
MXene
graphene
oxide
(GO)
were
prepared
by
twin-screw
extrusion
injection
molding
methods.
Short
CF
was
firstly
polyetherimide
(PEI),
then
different
weight
ratios
MXene-GO
(1:1)
subsequently
on
PEI-CF.
Finally,
flexural
failure
mechanisms
analyzed.
The
results
showed
successfully
coated
surface,
strength
modulus
CF-PEI-MXene-GO-reinforced
PLA
(CF-PEI-MG/PLA)
composite
improved
compared
CF/PLA
composite.
addition,
fracture
sections
flat
white,
bonded
well
for
CF-PEI-0.1MG/PLA
present
study
could
provide
reference
further
improving
performance
PLA-related
composites.
Polymers,
Journal Year:
2024,
Volume and Issue:
16(3), P. 431 - 431
Published: Feb. 4, 2024
This
study
is
focused
on
investigating
the
rheological
and
mechanical
properties
of
highly
oxidized
graphite
(GrO)
incorporated
into
a
poly
(lactic
acid)
(PLA)
matrix
composite.
Furthermore,
samples
were
annealed
at
110
°C
for
30
min
to
whether
GrO
concentration
has
an
effect
elastic
modulus
(E’)
after
treatment.
The
incorporation
PLA
was
carried
out
by
employing
internal
mixing
chamber
190
°C.
Six
formulations
prepared
with
concentrations
0,
0.1,
0.5,
1,
1.5,
3
wt%.
thermal
stability,
thermomechanical
behavior,
crystallinity
composites
evaluated
utilizing
thermogravimetric
analysis
(TGA),
dynamic
(DMA),
differential
scanning
calorimetry
DSC,
respectively.
stability
(according
Tmax)
PLA/GrO
did
not
change
substantially
compared
PLA.
According
increased
until
reached
1
wt%
afterward
decreased.
Regarding
heat
treatment
composites,
E’
(by
two
orders
magnitude)
80
maximum
value
achieved
non-heat-treated
composites.
