Materials & Design,
Год журнала:
2023,
Номер
226, С. 111652 - 111652
Опубликована: Янв. 25, 2023
In
exploring
the
difference
in
wettability
of
fibers
with
various
structures,
three
inner
constructions
fibers,
namely,
uniaxial,
Janus
and
chimeric
Janus,
have
been
fabricated
by
electrospinning.
electrospun
polyvinyl
pyrrolidone
cellulose
acetate
were
used
as
a
polymer
matrix
ketoprofen
was
model
drug.
Morphologies
structures
respectively
investigated
scanning
electron
microscopy
(SEM)
Transmission
(TEM).
Physical
states
compatibilities
materials
detected
X-ray
diffraction
(XRD)
Fourier
transform
infrared
spectroscopy
(FTIR).
Water
contact
angle
(WCA)
tests
conducted
to
determine
between
wetting
time
among
assorted
fiber
membranes.
Results
showed
that
gradient
could
drive
water
movement
wetting,
which
resulted
rapid
decrease
WCA,
prepare
membranes
compared
uniaxial
Otherwise,
vitro
drug
release
experiments
carried
out
four
fitting
models
applied
matching
profiles.
The
results
belonged
sustained-release
systems
such
influenced
diffusion
backbone
corrosion
effects.
this
study,
whether
multilayer
affect
investigated.
Catalysts,
Год журнала:
2023,
Номер
13(4), С. 758 - 758
Опубликована: Апрель 15, 2023
Dyes,
antibiotics,
heavy
metal
ions,
and
bacteria
are
important
sources
of
water
pollution.
How
to
solve
these
issues
has
become
a
problem
in
the
fields
science
technology.
People
have
developed
variety
technologies
treat
pollutants
water.
Photocatalytic
technology
came
into
being.
As
simple
environmentally
friendly
treatment
technology,
it
been
widely
studied
by
scientific
community.
Traditional
powder
photocatalysts
cause
secondary
pollution
environment
not
conducive
recycling.
Therefore,
large
specific
surface
area
reusable
membrane
built
electrospinning
favorite
today’s
Nanofiber
membranes
prepared
structures,
which
can
meet
needs
different
occasions.
This
review
summarizes
discusses
research
progress
relationship
between
structure
electrospun
fiber
membranes,
their
impacts
on
photocatalytic
performance
nanofiber
membranes.
The
performance,
challenges,
future
development
directions
with
kinds
techniques
using
photocatalysis
pollutants,
reviewed.
Nanomaterials,
Год журнала:
2024,
Номер
14(7), С. 646 - 646
Опубликована: Апрель 8, 2024
Dressings
with
multiple
functional
performances
(such
as
hemostasis,
promoting
regeneration,
analgesia,
and
anti-inflammatory
effects)
are
highly
desired
in
orthopedic
surgery.
Herein,
several
new
kinds
of
medicated
nanofibers
loaded
active
ingredients
for
providing
functions
were
prepared
using
the
modified
coaxial
electrospinning
processes.
With
an
electrospinnable
solution
composed
polycaprolactone
fenoprofen
core
working
fluid,
different
types
unspinnable
fluids
(including
pure
solvent,
nanosuspension
containing
tranexamic
acid
hydroxyapatite,
dilute
polymeric
comprising
acid,
polyvinylpyrrolidone)
explored
to
implement
processes
creating
multifunctional
nanofibers.
Their
morphologies
inner
structures
assessed
through
scanning
transmission
electron
microscopes,
which
all
showed
a
linear
format
without
discerned
beads
or
spindles
diameter
smaller
than
1.0
μm,
some
them
had
incomplete
core–shell
nanostructures,
represented
by
symbol
@.
Additionally,
strange
details
about
sheaths’
topographies
observed,
included
cracks,
adhesions,
embedded
nanoparticles.
XRD
FTIR
verified
that
drugs
presented
amorphous
state,
resulted
from
fine
compatibility
among
involved
components.
All
samples
demonstrated
have
hydrophilic
property
exhibited
lower
water
contact
angle
40°
300
ms.
In
vitro
dissolution
tests
indicated
was
released
sustained
manner
over
6
h
typical
Fickian
diffusion
mechanism.
Hemostatic
intentional
distribution
on
shell
sections
able
endow
rapid
hemostatic
effect
within
60
s.
Frontiers in Bioengineering and Biotechnology,
Год журнала:
2024,
Номер
12
Опубликована: Июнь 13, 2024
Combination
therapy
with
oral
administration
of
several
active
ingredients
is
a
popular
clinical
treatment
for
cancer.
However,
the
traditional
method
has
poor
convenience,
less
safety,
and
low
efficiency
patients.
The
combination
pharmaceutical
techniques
advanced
material
conversion
methods
can
provide
new
solutions
to
this
issue.
In
research,
kind
hybrid
film
was
created
via
coaxial
electrospraying,
followed
by
casting
process.
films
were
composed
Reglan
5-fluorouracil
(5-FU)-loaded
cellulose
acetate
(CA)
core-shell
particles
in
polyvinylpyrrolidone
(PVP)
matrix.
Microscopic
observations
these
demonstrated
solid
cross
section
loaded
particles.
X-ray
diffraction
Fourier-transform
infrared
tests
verified
that
5-FU
showed
amorphous
states
fine
compatibilities
polymeric
matrices,
i.e.,
PVP
CA,
respectively.
vitro
dissolution
indicated
able
desired
asynchronous
dual-drug
delivery,
fast
release
Reglan,
sustained
5-FU.
controlled
mechanisms
shown
be
an
erosion
mechanism
typical
Fickian
diffusion
protocols
reported
herein
pioneer
approach
fabricating
biomaterials
multiple
drugs,
each
its
own
behavior,
synergistic
cancer
treatment.
Nanoscale,
Год журнала:
2024,
Номер
16(17), С. 8573 - 8582
Опубликована: Янв. 1, 2024
Janus
nanoparticles
with
soluble
polyvinylpyrrolidone
patches
located
on
the
insoluble
Eudragit
RL100
sides
were
prepared
using
a
side-by-side
electrospraying
method
and
are
demonstrated
to
provide
biphasic
release
of
paracetamol
in
turn
faster
action
longer
time
periods
blood
drug
concentration
for
therapy.
Polymers,
Год журнала:
2024,
Номер
16(4), С. 501 - 501
Опубликована: Фев. 12, 2024
Superabsorbent
polymers
are
new
functional
polymeric
materials
that
can
absorb
and
retain
liquids
thousands
of
times
their
masses.
This
paper
reviews
the
synthesis
modification
methods
different
superabsorbent
polymers,
summarizes
processing
for
forms
organizes
applications
research
progress
in
industrial,
agricultural,
biomedical
industries.
Synthetic
like
polyacrylic
acid,
polyacrylamide,
polyacrylonitrile,
polyvinyl
alcohol
exhibit
superior
water
absorption
properties
compared
to
natural
such
as
cellulose,
chitosan,
starch,
but
they
also
do
not
degrade
easily.
Consequently,
it
is
often
necessary
modify
synthetic
or
graft
groups
onto
then
crosslink
them
balance
material.
Compared
widely
used
nanoparticles,
on
fibers
gels
rise,
particularly
notable
fields
drug
delivery,
wound
dressing,
tissue
engineering.
International Journal of Molecular Sciences,
Год журнала:
2024,
Номер
25(17), С. 9524 - 9524
Опубликована: Сен. 1, 2024
Core–shell
nanostructures
are
powerful
platforms
for
the
development
of
novel
nanoscale
drug
delivery
systems
with
sustained
release
profiles.
Coaxial
electrospinning
is
facile
and
convenient
creating
medicated
core–shell
elaborate
designs
which
sustained-release
behaviors
molecules
can
be
intentionally
adjusted.
With
resveratrol
(RES)
as
a
model
poorly
water-soluble
cellulose
acetate
(CA)
PVP
polymeric
carriers,
brand-new
electrospun
nanostructure
was
fabricated
in
this
study.
The
guest
RES
host
CA
were
designed
to
have
reverse
gradient
distribution
within
nanostructures.
Scanning
electron
microscope
transmission
evaluations
verified
that
these
nanofibers
had
linear
morphologies,
without
beads
or
spindles,
an
obvious
double-chamber
structure.
X-ray
diffraction
patterns
Fourier
transform
infrared
spectroscopic
results
indicated
involved
components
highly
compatible
presented
amorphous
molecular
state.
In
vitro
dissolution
tests
new
structures
able
prevent
initial
burst
release,
extend
continuous-release
time
period,
reduce
negative
tailing-off
effect,
thus
ensuring
better
profile
than
traditional
blended
drug-loaded
nanofibers.
mechanism
underlying
influence
structure
RES/CA
on
proposed.
Based
proof-of-concept
demonstration,
series
advanced
functional
nanomaterials
similarly
developed
based
distributions
multi-chamber
