Laser
surface
modification
has
been
widely
applied
to
the
pre-treatment
of
material
surfaces
for
interface
bonding,
however,
there
is
inevitable
risk
environmental
exposure
laser-treated
during
engineering
application,
and
evolution
laser-induced
modifications
remains
unclear
under
exposure.
This
study
investigates
robustness
aluminum
typical
atmospheric
aqueous
environments
with
temperature
varying
from
-40℃
80℃.
Although
carbon
elemental
content
water
contact
angle
greatly
fluctuate
23
at.%
33
at.%,
0°
148°,
respectively,
exhibit
stable
strength
improvement
~25%
compared
untreated
condition
even
after
30
days
Notably,
hygrothermal
80℃
95%RH
significantly
declines
bonding
by
~45%,
this
degradation
accompanied
1.8%
increase
~150°.
Results
reveal
that
laser-generated
nano-structures
play
crucial
role
in
improvement,
instead
carbonaceous
contaminants
polarity,
nanostructure
transformation
causes
an
apparent
change
fracture
mode
cohesive
interface.
work
uncovers
dominant
enhancing
interfacial
strength,
provides
supports
application
laser
modification.
Materials & Design,
Journal Year:
2023,
Volume and Issue:
226, P. 111691 - 111691
Published: Feb. 1, 2023
Superhydrophobic
metallic
surfaces
exhibit
superior
self-cleaning
and
anti-corrosion
properties,
but
facile
pollution-free
preparation
of
such
remains
a
challenge.
Herein,
we
propose
an
eco-friendly
strategy
by
using
ns-laser
treatment
followed
simple
hygrothermal
(95%RH
@
80
°C),
this
is
applicable
to
facilely
preparing
superhydrophobicity
for
various
metals.
Immediately
after
treatment,
ultra-porous
nano-fibers
composed
amorphous
Al-Al2O3
mixture
were
produced,
rendered
aluminum
surface
superhydrophilic
via
local
capillary
forces.
Counterintuitively,
subsequent
hydrothermal
accelerated
wettability
transition
superhydrophobicity,
comparative
analysis
theoretical
modelling
strongly
suggest
that
the
mechanism
deeply
dominated
nanostructure
transformation.
A
roughened
compact
layer
spherical
AlOOH
nanocrystals
was
reconstructed
enable
water
droplet
in
Wenzel
wetting
state.
Our
results
shed
new
insights
into
origin
evolution
commonly
reported
at
processing/service
stages,
demonstrate
novel
method
construct
superhydrophobic
surfaces.
Plant Nano Biology,
Journal Year:
2023,
Volume and Issue:
6, P. 100053 - 100053
Published: Nov. 1, 2023
Nanometric
carriers
have
great
potential
for
promoting
agrochemical
target
delivery
and
dose
reduction
while
transforming
agriculture
into
a
more
sustainable
environment.
Many
nanoplatforms,
such
as
metal,
polymeric,
clay,
carbon-based,
are
developed
differently.
However,
new
possibilities
of
mixture
between
nanomaterials
explored
by
scientists
called
hybrid
nanoparticles.
The
information
about
these
nanosystems
was
focused
on
development
characterization,
non-target
effects,
uptake
nanoparticles
applied
to
reach
root
or
foliar
pathways
in
plants.
In
this
scenario,
lack
application
exists
can
be
the
future.
Hybrid
smart
carrier
deliver
agrochemicals
two-way
approach
routes
simultaneously
advance
nanocarrier
strategies
depends
design
considering
nanomaterial
characteristics
main
gaps
recent
reports
discussed
here.
Furthermore,
platforms
been
suggested
enable
agricultural
applications
farming
systems.
