Polymers,
Journal Year:
2024,
Volume and Issue:
16(17), P. 2393 - 2393
Published: Aug. 23, 2024
The
utilization
of
biopolymers
incorporated
with
antimicrobial
agents
is
extremely
interesting
in
the
development
environmentally
friendly
functional
materials
for
food
packaging
and
other
applications.
In
this
study,
effect
calcium
oxide
(CaO)
on
morphological,
mechanical,
thermal,
hydrophilic
properties
as
well
activity
carboxymethyl
chitosan
(CMCH)
bio-composite
films
was
investigated.
CMCH
synthesized
from
shrimp
through
carboxymethylation,
whereas
CaO
via
a
co-precipitation
method
polyethylene
glycol
stabilizer.
CMCH-CaO
were
prepared
by
addition
into
using
facile
solution
casting
method.
As
confirmed
XRD
SEM,
has
cubic
shape,
an
average
crystalline
size
25.84
nm.
exhibited
excellent
against
Journal of Hazardous Materials Advances,
Journal Year:
2024,
Volume and Issue:
13, P. 100401 - 100401
Published: Jan. 13, 2024
Bio-synthesized
metal
oxide
(MeO)
nanoparticles
(NPs)
have
triggered
a
huge
global
research
interest
owing
to
their
advancement
and
various
environmental
remediation,
personal
care
products,
medical,
energy,
sensing,
water
treatment
applications.
They
demonstrate
developing
assets
in
industries,
remarkably
with
heightened
physicochemical,
optical,
mechanical,
electronic
attributes.
The
physical
chemical
routes
been
sticking
point
the
production
of
MeO
NPs,
natural
risks
linked
utilizing
these
approaches.
growth
NPs
via
biologic
method
employing
plants
microorganisms
as
precursor
material
for
metal-ions
(MIs)
reduction
stabilization
has
focus
scientists
recent
years.
Hence,
this
review,
comprehensive
brief
bio-synthesis
approaches
using
plant
extracts
(PEs)
microorganism
components
well
factors
affecting
bio-production
applications
toxicity
were
considered.
Tribology International,
Journal Year:
2024,
Volume and Issue:
193, P. 109402 - 109402
Published: Feb. 7, 2024
The
aim
of
the
present
research
is
to
analyze
thermophysical
and
tribological
properties
PAO4
nanolubricants
containing
functionalized
(GO-polyethyleneimine-oleic
acid,
GO-PEI-OA)
non-functionalized
(GO)
graphene
oxide.
Nanodispersions
these
NPs
were
prepared,
observing
a
better
stability
for
GO-PEI-OA
nanolubricants.
As
properties,
significant
improvements
in
coefficient
friction
obtained
comparing
with
base
oil,
being
28%
(0.10
wt%).
Concerning
anti-wear
behavior,
results
(0.15
wt%)
about
27%,
54%
60%
diameter,
depth,
area
wear
track,
respectively.
Finally,
Raman
spectroscopy
surface
roughness
measurements
used
identify
mechanisms
tribofilm
formation
repairing.
Lubricants,
Journal Year:
2024,
Volume and Issue:
12(5), P. 166 - 166
Published: May 9, 2024
The
study
of
lubricating
oil
is
paramount
for
the
optimal
functioning
modern
engines,
and
it
has
generated
intensive
research
in
automotive
industry.
aim
to
improve
tribological
properties
lubricants
by
including
nanomaterials
as
additives
base
oils.
This
article
presents
an
exhaustive
bibliographic
review
experiments
carried
out
optimize
nano-lubricants
order
identify
nanoparticles
experimental
processes
used
analyze
results
obtained.
methodology
adopted
combines
inductive
deductive
elements.
It
begins
with
formulation
a
general
theory
on
application
lubricants,
followed
collection
specific
data
conceptualization
preparation
nano-lubricants.
A
total
176
articles
focused
especially
reduce
coefficient
friction,
are
reviewed.
These
works,
impact
levels
Q1
Q2,
delve
into
analyzed
obtained
results.
Most
researchers
worked
nanoparticle
concentration
range
0%
1%
volume.
Nanomaterials,
Journal Year:
2024,
Volume and Issue:
14(13), P. 1121 - 1121
Published: June 29, 2024
Tungsten
oxide
(WO3)
is
known
for
its
photochromic
properties,
making
it
useful
smart
windows,
displays,
and
sensors.
However,
small
bandgap
leads
to
rapid
recombination
of
electron–hole
pairs,
resulting
in
poor
performance.
This
study
aims
enhance
the
properties
WO3
by
synthesizing
hexagonal
tungsten
via
hydrothermal
synthesis,
which
increases
surface
area
internal
hydrates.
Titanium
(TiO2)
was
adsorbed
onto
inject
additional
charges
reduce
recombination.
Additionally,
polyvinylpyrrolidone
(PVP)
used
improve
dispersion
organic
solvents,
allowing
fabrication
high-quality
films
using
doctor
blade
method.
Characterization
confirmed
enhanced
area,
crystal
structure,
stability.
Reflectance
transmittance
measurements
demonstrated
significant
improvements
due
composite
structure.
These
findings
suggest
that
introduction
TiO2
PVP
effectively
enhances
performance,
broadening
applicability
various
advanced
applications.
