ACS Omega,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 7, 2025
Bimetallic
nanoparticles
(BNPs)
have
attracted
much
attention
recently
due
to
their
improved
properties
compared
monometallic
ones.
Gold
and
silver
(AuAgNPs)
are
among
the
most
studied
BNPs.
Using
these
particles
as
powder
or
dispersion
has
drawbacks
such
ease
of
aggregation
difficulty
separating
recovering
from
reaction
medium.
Therefore,
immobilizing
in
polymeric
matrices,
cellulose,
is
appealing.
In
this
context,
present
work
focused
on
preparing
unmodified
cellulose
membranes
containing
AuAgNPs
for
use
heterogeneous
catalysts
reducing
pollutant
4-nitrophenol.
Incorporating
into
represents
a
significant
advancement
catalysis.
addition
being
eco-friendly,
offer
handling
potential
reusability,
which
crucial
factors
The
were
prepared
an
aqueous
medium
seeded
growth
shell
around
AuNP
seeds.
Images
recorded
by
transmission
electron
microscopy
showed
that
diameters
smaller
than
100
nm
core-shell
type.
membrane
was
dissolving
microcrystalline
ionic
liquid,
followed
regeneration
process
using
water.
Next,
bimetallic
incorporated
membrane.
analyses
revealed
contain
homogeneously
distributed
matrix,
inductively
coupled
plasma-optical
emission
spectroscopy
(ICP-OES)
0.339
wt
%
0.069%
gold.
produced
efficient
4-nitrophenol,
used
at
least
four
cycles
without
loss
efficiency.
This
material
can
be
easily
isolated
medium,
avoiding
centrifugation
filtration
processes
reuse.
study
first
supported
nonmodified
catalysts,
marking
catalysis
science.
Green Chemistry,
Journal Year:
2022,
Volume and Issue:
24(14), P. 5429 - 5459
Published: Jan. 1, 2022
Organic
waste
valorisation
into
biopolymers
and
nanofillers
potentially
lowers
the
pressure
on
non-renewable
resources,
avoids
generation
of
waste-streams
opens
new
opportunities
to
develop
multifunctional
bio-based
products.
Carbohydrate Polymer Technologies and Applications,
Journal Year:
2023,
Volume and Issue:
6, P. 100337 - 100337
Published: June 21, 2023
The
distinctive
characteristics
and
versatile
applications
of
crystalline
cellulose
have
garnered
considerable
interest
in
the
21st
century,
making
it
an
emerging
promising
material.
This
review
highlights
current
state
art
research,
with
a
particular
focus
on
its
advanced
applications.
sources,
extraction
techniques,
classification,
modification
were
also
discussed.
It
was
observed
that
plant
biomass
is
most
utilized
precursor
for
synthesis.
Findings
revealed
cellulose-based
materials
significant
potential
wide
range
applications,
including
3D
printing,
photonics,
catalysis,
energy
storage
generation,
electronics,
biomedicine,
pharmaceuticals,
amongst
others.
However,
there
are
several
challenges
associated
adoption
materials.
These
include
issues
related
to
cost,
scalability,
recycling,
waste
management.
need
continued
investment
research
development
optimize
properties
manufacturing
processes
these
materials,
as
well
education
outreach
increase
awareness
promote
their
adoption.
In
summary,
this
emphasizes
how
has
tackle
critical
global
issues,
resource
depletion
climate
change.
presents
prospects
future
opportunities
adopt
Scientific Reports,
Journal Year:
2022,
Volume and Issue:
12(1)
Published: May 23, 2022
Abstract
In
this
research,
cellulose
grafted
to
chitosan
by
EDTA
(Cs-EDTA-Cell)
bio-based
material
is
reported
and
characterized
a
series
of
various
methods
techniques
such
as
FTIR,
DRS-UV–Vis,
TGA,
FESEM,
XRD
EDX
analysis.
fact,
the
Cs-EDTA-Cell
network
more
thermally
stable
than
pristine
or
chitosan.
There
plenty
both
acidic
basic
sites
on
surface
biodegradable
network,
multifunctional
organocatalyst,
proceed
three-component
synthesis
2-amino-4
H
-pyran
derivatives
at
room
temperature
in
EtOH.
The
nanocatalyst
can
be
easily
recovered
from
reaction
mixture
using
filtration
reused
for
least
five
times
without
significant
decrease
its
catalytic
activity.
general,
heterogeneous
catalyst,
demonstrated
excellent
activity
an
environmentally-benign
solvent
afford
desired
products
short
required
simple
experimental
work-up
procedure
compared
many
protocols
similar
systems.
Biosensors,
Journal Year:
2024,
Volume and Issue:
14(1), P. 35 - 35
Published: Jan. 10, 2024
Wearable
antennas
have
recently
garnered
significant
attention
due
to
their
attractive
properties
and
potential
for
creating
lightweight,
compact,
low-cost,
multifunctional
wireless
communication
systems.
With
the
breakthrough
progress
in
nanomaterial
research,
use
of
lightweight
materials
has
paved
way
widespread
application
wearable
antennas.
Compared
with
traditional
metallic
like
copper,
aluminum,
nickel,
nanoscale
entities
including
zero-dimensional
(0-D)
nanoparticles,
one-dimensional
(1-D)
nanofibers
or
nanotubes,
two-dimensional
(2-D)
nanosheets
exhibit
superior
physical,
electrochemical,
performance
characteristics.
These
significantly
enhance
constructing
durable
electronic
composites.
Furthermore,
antenna
exhibits
compact
size
high
deformation
stability,
accompanied
by
greater
portability
wear
resistance,
owing
surface-to-volume
ratio
flexibility
nanomaterials.
This
paper
systematically
discusses
latest
advancements
based
on
0-D,
1-D,
2-D
nanomaterials,
providing
a
comprehensive
overview
development
future
prospects
field.
International Journal of Biological Macromolecules,
Journal Year:
2024,
Volume and Issue:
268, P. 131829 - 131829
Published: April 25, 2024
Nanocelluloses
exhibit
immense
potential
in
catalytic
and
biomedical
applications.
Their
unique
properties,
biocompatibility,
versatility
make
them
valuable
various
industries,
contributing
to
advancements
environmental
sustainability,
catalysis,
energy
conversion,
drug
delivery,
tissue
engineering,
biosensing/imaging,
wound
healing/dressings.
Nanocellulose-based
catalysts
can
efficiently
remove
pollutants
from
contaminated
environments,
sustainable
cleaner
ecosystems.
These
materials
also
be
utilized
as
carriers,
enabling
targeted
controlled
release.
high
surface
area
allows
for
efficient
loading
of
therapeutic
agents,
while
their
biodegradability
ensures
safer
gradual
release
within
the
body.
delivery
systems
enhance
efficacy
treatments
minimizes
side
effects.
Moreover,
nanocelluloses
serve
scaffolds
engineering
due
structural
integrity
biocompatibility.
They
provide
a
three-dimensional
framework
cell
growth
regeneration,
promoting
development
functional
biologically
relevant
tissues.
dressings
have
shown
great
promise
healing
dressings.
ability
absorb
exudates,
maintain
moist
environment,
promote
proliferation
migration
accelerates
process.
Herein,
recent
pertaining
applications
composites
are
deliberated,
focusing
on
important
challenges,
advantages,
limitations,
future
prospects.