Anti-Counterfeiting

Nanostructured surface can be identified via reflection pattern by using a cheap and simple source of light, for example, laser pointer (Fig. 1a).

Nanostructured surface produces specific pattern of reflected light (Fig. 1c), but untreated surface reflects single spot of light (Fig. 1b).

Different products can be marked with different nanostructures for fast identification. (Fig. 2).

Figure 1
Figure 2

Friction

Laser nano-patterning of the surface essentially decreases coefficient of friction as well as wear properties.

Lubricated sliding tests showed that coefficient of friction values after nanotextured treatment are significantly lower.

Profile measurements show that the treated surface is more resistant to wear compared to untreated one.

Mean friction coefficients
Experimental setup
Profile measurement
Schematic of the laser treatment as a laser beam is scanned over a sample

Implants

The use of femtosecond laser for the generation of laser nanostructures on dental implants surfaces substantially improve cell adhesion and proliferation.

In vivo experiments confirmed that, the rough surfaces improve the protein adsorption from blood plasma under the dynamic conditions, resulting in significant increase in the cell adhesion and proliferation.

Cell viability of HDFa cells on Ti alloy surface with different surface modification.

This fact opens a great prospect for application of laser nanostructures in modification and improvement of surface of dental and surgical implants.

Modified surfaces of Ti alloy (Ti-6Al-4V) by laser induced periodic surface structures (LIPSS).

Ultrasuperhydrophobic surfaces

Laser nano-patterning of the surface essentially decreases coefficient of friction as well as wear properties.

Lubricated sliding tests showed that coefficient of friction values after nanotextured treatment are significantly lower.

Profile measurements show that the treated surface is more resistant to wear compared to untreated one.

Superhydrophilic surfaces

We have demonstrated that laser texturing can tune surface to become superhydrophilic. The results demonstrate substantial effects of laser texturing on wetting properties of silicon and metallic surface. The hydrophilic silicon surface becomes superhydrophilic after nanopatterning. By tuning laser parameters we can control the water flowing and make laser nanostructures more flexible, bringing up to a new level of control of wettability properties for several applications.

Superhydrophilic properties are used for water cooling in electronic gadgets and other goods.

Marking

We have demonstrated that laser texturing can tune surface to become superhydrophilic. The results demonstrate substantial effects of laser texturing on wetting properties of silicon and metallic surface. The hydrophilic silicon surface becomes superhydrophilic after nanopatterning. By tuning laser parameters we can control the water flowing and make laser nanostructures more flexible, bringing up to a new level of control of wettability properties for several applications.

Superhydrophilic properties are used for water cooling in electronic gadgets and other goods.

Example of textured by LIPSS hierarchical structure on ferritic steel: macrophoto (a) and SEM (b).

The technology can be applied to metall, dielectric, …, glass surfaces.

Unique colorising patterns can protect the treated objects, i.e. expensive watches, jewelry and gags.