Journal of Physics Conference Series,
Journal Year:
2025,
Volume and Issue:
2994(1), P. 012006 - 012006
Published: April 1, 2025
Abstract
One
of
the
most
common
ways
spreading
infections
is
through
surfaces
that
are
under
highly
frequent
contact
such
as
handles
or
buttons
in
public
places.
An
effective
strategy
to
combat
this
problem
develop
durable
modified
at
micro
and
nano
level
can
hinder
adhesion
dissemination
microbials.
This
paper
presents
a
contactless
reproducible
methodology
for
surface
texturing
copper
by
means
femtosecond
laser
ablation.
The
plates
were
irradiated
(λ
=
800
nm;
τ
70
fs)
with
varying
range
working
parameters
order
parallel
crossed
modifications
comprised
laser-induced
periodic
structures
(LIPSS).
formed
patterns
led
shift
wettability
state
towards
high
hydrophobicity,
while
improved
hydrophilicity.
Furthermore,
reduced
oxide
layer
formation
on
copper.
These
results
would
serve
basis
conducting
further
investigation
potential
antimicrobial
effects
surfaces.
Applied Surface Science,
Journal Year:
2024,
Volume and Issue:
663, P. 160225 - 160225
Published: May 6, 2024
Bacterial
adhesion
is
a
serious
problem
in
the
healthcare
and
food
industries,
causing
health
problems
economic
losses.
This
study
evaluates
generation
of
Laser-Induced
Periodic
Surface
Structures
(LIPSS)
with
different
periodicities
to
reduce
bacterial
on
ferritic
stainless
steels.
LIPSS
nanostructuring
evolves
from
hydrophilic
hydrophobic
air
exposure.
Fresh
samples
870
nm
show
nearly
50
%
reduced
E.
coli
adhesion,
but
this
effect
diminishes
stabilized
samples.
can
be
attributed
periodicity
being
like
size,
which
would
allow
bacteria
accommodate
provide
suitable
environment
for
their
adhesion.
Our
results
that,
stable
when
around
400
nm,
reductions
by
almost
30
are
achieved
reduction
reaches
35
close
270
nm.
These
indicate
that
smaller
spatial
periods
prevent
fitting
into
valleys,
so
they
remain
peaks,
hindering
Additionally,
deeper
produced
higher
Density
Applied
Energy
(SDAE),
enhance
bacteria-material
interaction
and,
thus,
increases
Eng—Advances in Engineering,
Journal Year:
2024,
Volume and Issue:
5(3), P. 1768 - 1784
Published: Aug. 5, 2024
A
main
topic
in
mass
production
of
machine
parts
is
how
to
increase
the
productivity
produce
more
a
given
time
while
maintaining
prescribed
surface
quality
on
machined
surfaces.
Novel
machining
procedures
have
been
introduced
achieve
this
goal;
however,
further
development
already
established
and
wide-spread
can
offer
simply
accessible
solutions.
Tangential
turning
rediscovered
variant
traditional
procedure,
where
specially
designed
cutting
tool
ensures
chip
removal
with
feed
tangential
workpiece.
This
process
results
low
roughness
even
at
higher
rates.
In
paper,
achievable
analyzed
by
analytical
experimental
steps.
mathematical
analysis,
theoretical
determined
using
constructive
geometric
modelling
method.
The
worked-out
equations
are
validated
experiments
42CrMo4
grade
steel
workpieces.
analyses
show
that
strictly
be
achieved
high
rates
application
turning.
Advanced Materials Interfaces,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 13, 2025
Abstract
As
implant‐related
infections
increase
with
a
simultaneously
increasing
demand
for
implants,
new
material
design
concepts
are
needed
to
prevent
such
occasions
from
leading
failure
or
mortality.
One
approach
is
the
antibacterial
coating
of
implant
materials
ZnO.
This
study
applies
ZnO
by
atomic
layer
deposition
(ALD)
on
novel
class
temporary
metallic
materials.
The
biodegradable
alloy
Fe69Mn30C1
applied
as
substrate.
Three
different
thicknesses
(33,
45,
and
60
nm)
deposited
at
very
low
temperature
100
°C
investigated
regarding
their
mechanical
behavior,
roughness,
wettability
in
vitro
degradation.
With
thickness
ALD
coating,
roughness
corresponding
contact
angle
slightly
increased,
although
surface
remained
hydrophilic.
Initial
corrosion
products
analyzed
X‐ray
photoelectron
spectroscopy,
where
Zn
Phosphorous‐Oxygen
compounds
identified.
Furthermore,
effect
tested
against
Gram‐positive
Staphylococcus
aureus
compared
uncoated
clinically
316L
stainless
steel.
clearly
enhanced
direct
S.
,
inhibitory
rate
up
99.2%
316L.
an
outlook
further
studies,
it
demonstrated
that
additively
manufactured
generic
3D
structure
can
be
coated
using
ALD.
