Polymer Engineering and Science,
Год журнала:
2024,
Номер
64(5), С. 2049 - 2063
Опубликована: Фев. 27, 2024
Abstract
To
develop
a
green
nanomaterial
for
specialty
applications,
spherical
nanocellulose
(SNC)
was
functionalized
to
semicarbazone‐Schiff
base
via
polymer
analogous
reaction.
Firstly,
SNC
synthesized
from
cellulose
extracted
huge
forest
biomass,
pine
needles
(PNs).
The
glucopyranose
ring
of
oxidatively
cleaved
at
C2–C3
form
SNC‐dialdehyde
(SNC‐DA)
by
periodate
oxidation.
Both
the
aldehydic
groups
generated
were
reacted
with
semicarbazide
base,
referred
as
functional
(FSNC).
All
materials
characterized
FTIR,
FESEM,
EDS,
TEM,
and
XRD
studies.
FSNC
evaluated
an
adsorbent
Hg
2+
ions.
adsorption
adhered
pseudo‐second
order
kinetics
Langmuir
isotherm
having
maximum
capacity/Lungmuir
capacity
172.412
mg/g
60
min.
selectivity
ions
confirmed
its
appreciable
removal
(82%)
solution
in
tap
water
70%
other
metal
exhibited
bifunctional
nature
it
possesses
antimicrobial
activity
against
bacteria,
that
is,
Gram
(+)
(
Bacillus
aereus
)
(−)
Escherichia
coli
Salmonella
typhi
),
fungus
Byssochlamys
fulva
.
showed
good
recyclability
up
eight
sorption–desorption
cycles.
Thus,
we
have
valorized
biomass
into
eco‐friendly
low‐cost
material
cum
agent.
Highlights
Spherical
prepared
acidic
hydrolysis
semicarbazone‐based
Schiff
is
rapid
efficient
has
activities
bacteria
Biowaste‐based
potential
sustain
bio‐circular
economy
Molecular Pharmaceutics,
Год журнала:
2023,
Номер
21(1), С. 173 - 182
Опубликована: Ноя. 22, 2023
Precisely
modulating
the
synergistic
release
behavior
of
multiple
bioactive
substances
has
emerged
as
a
formidable
challenge
in
recent
years.
In
this
work,
we
successfully
prepared
core–sheath
nanofibers,
where
thin
cellulose
acetate
(CA)
coating
enrobed
core.
Curcumin
(Cur)
was
encapsulated
core
layer
model
drug,
while
zinc
oxide
(ZnO)
nanoparticles
were
loaded
on
sheath
layer.
The
fiber
exhibited
straight
cylindrical
morphology
containing
nanoparticles,
and
distinct
nanostructure
demonstrated
through
transmission
electron
microscopy
(TEM).
X-ray
diffraction
(XRD)
Fourier
transform
infrared
(FTIR)
conducted
to
study
physical
state
compatibility
among
CA,
Cur,
ZnO.
Drug
data
indicated
that
nanofibers
able
decelerate
rate
drug
release,
thickness
increased
presence
ZnO
particles.
Most
remarkably,
these
remarkable
ability
sustain
drugs
ion
(Zn2+),
two-day
synergistically
leading
significant
increase
cell
proliferation.
This
material
preparation
strategy
for
controlled
two
is
instructive
exploration
innovative
versatile
delivery
systems.
Nano Materials Science,
Год журнала:
2024,
Номер
unknown
Опубликована: Янв. 1, 2024
Inspired
by
the
skin
structure,
an
asymmetric
wettability
tri-layer
nanofiber
membrane
(TNM)
consisting
of
hydrophilic
inner
layer
loaded
with
lidocaine
hydrochloride
(LID),
hydrophobic
middle
ciprofloxacin
(CIP)
and
outer
has
been
created.
The
endows
TNM
waterproof
function
anti-adhesion
from
contaminants.
CIP
preserves
long-term
inhibition
bacteria
growth
LID
possesses
optimal
water-absorbing
capacity
air
permeability.
dramatically
elevates
water
contact
angles
10°
(inner
layer)
to
120°
(outer
layer),
indicating
wettability,
which
could
directionally
transport
wound
exudate
within
materials
meanwhile
maintain
a
comfortable
moist
environment
promote
healing.
Furthermore,
sequential
release
relieve
pain
rapidly
achieve
antibacterial
effect
in
long
run,
respectively.
In
addition,
shows
superior
biocompatibility
towards
L929
cells.
vivo
results
show
prevent
infection,
accelerate
epithelial
regeneration
significantly
This
study
indicates
developed
asymmetrical
synergetic
drug
great
potential
as
dressing
clinical
application.
Cyborg and Bionic Systems,
Год журнала:
2024,
Номер
5
Опубликована: Янв. 1, 2024
In
the
realm
of
precise
medicine,
advancement
manufacturing
technologies
is
vital
for
enhancing
capabilities
medical
devices
such
as
nano/microrobots,
wearable/implantable
biosensors,
and
organ-on-chip
systems,
which
serve
to
accurately
acquire
analyze
patients’
physiopathological
information
perform
patient-specific
therapy.
Electrospinning
holds
great
promise
in
engineering
materials
components
advanced
devices,
due
demonstrated
ability
advance
development
nanomaterial
science.
Nevertheless,
challenges
limited
composition
variety,
uncontrollable
fiber
orientation,
difficulties
incorporating
fragile
molecules
cells,
low
production
effectiveness
hindered
its
further
application.
To
overcome
these
challenges,
electrospinning
techniques
have
been
explored
manufacture
functional
composites,
orchestrated
structures,
living
constructs,
scale-up
fabrication.
This
review
delves
into
recent
advances
underscores
their
potential
revolutionizing
field
upon
introducing
fundamental
conventional
techniques,
well
discussing
current
future
perspectives.
Journal of Food Science,
Год журнала:
2024,
Номер
89(3), С. 1373 - 1386
Опубликована: Фев. 11, 2024
Abstract
Onion
is
rich
in
bioactive
and
volatile
compounds
with
antioxidant
activity.
However,
the
pungent
odor
of
(VOCs)
released
restricts
its
use.
The
encapsulation
red
onion
extract
by
electrospinning
an
alternative
to
mask
this
protect
compounds.
main
objective
study
was
encapsulate
bulb
(ROE)
different
concentrations
into
zein
nanofibers
evaluate
their
thermal,
antioxidant,
hydrophilicity
properties.
major
VOC
ROE
3(2
H
)‐furanone,
2‐hexyl‐5‐methyl.
Incorporating
polymeric
solutions
increased
electrical
conductivity
decreased
apparent
viscosity,
rendering
a
lower
average
diameter.
loading
capacity
on
fibers
high,
reaching
91.5%
(10%
ROE).
morphology
random
continuous;
however,
it
showed
beads
at
highest
concentration
(40%).
addition
hydrophilicity.
nanofibers’
activity
against
2,2‐diphenyl‐1‐picrylhydrazyl,
nitric
oxide,
hydroxyl
radicals
ranged
from
32.5%
57.3%.
electrospun
have
potential
VOCs.
In
addition,
they
offer
sustainable
synthetic
antioxidants
commonly
employed
food
packaging
industry
due
activities.
Polymer Engineering and Science,
Год журнала:
2024,
Номер
64(5), С. 2049 - 2063
Опубликована: Фев. 27, 2024
Abstract
To
develop
a
green
nanomaterial
for
specialty
applications,
spherical
nanocellulose
(SNC)
was
functionalized
to
semicarbazone‐Schiff
base
via
polymer
analogous
reaction.
Firstly,
SNC
synthesized
from
cellulose
extracted
huge
forest
biomass,
pine
needles
(PNs).
The
glucopyranose
ring
of
oxidatively
cleaved
at
C2–C3
form
SNC‐dialdehyde
(SNC‐DA)
by
periodate
oxidation.
Both
the
aldehydic
groups
generated
were
reacted
with
semicarbazide
base,
referred
as
functional
(FSNC).
All
materials
characterized
FTIR,
FESEM,
EDS,
TEM,
and
XRD
studies.
FSNC
evaluated
an
adsorbent
Hg
2+
ions.
adsorption
adhered
pseudo‐second
order
kinetics
Langmuir
isotherm
having
maximum
capacity/Lungmuir
capacity
172.412
mg/g
60
min.
selectivity
ions
confirmed
its
appreciable
removal
(82%)
solution
in
tap
water
70%
other
metal
exhibited
bifunctional
nature
it
possesses
antimicrobial
activity
against
bacteria,
that
is,
Gram
(+)
(
Bacillus
aereus
)
(−)
Escherichia
coli
Salmonella
typhi
),
fungus
Byssochlamys
fulva
.
showed
good
recyclability
up
eight
sorption–desorption
cycles.
Thus,
we
have
valorized
biomass
into
eco‐friendly
low‐cost
material
cum
agent.
Highlights
Spherical
prepared
acidic
hydrolysis
semicarbazone‐based
Schiff
is
rapid
efficient
has
activities
bacteria
Biowaste‐based
potential
sustain
bio‐circular
economy
