Induced functionality by structured topography
Large Area Micro/Nano Structured Surfaces
High throughput and large area nano structuring of flexible substrates by continuous processes has great potential for future custom applications and products. Moreover, nanostructured thin films combined with tailored material properties create unique functionalities having a direct impact to broad range applications.
Inspired by nature we manufacture ¨nano¨ enabled surface and products with improved properties and well defined functionalities. Such bio-mimetic surfaces are created by designed surfaces or interfaces containing structural features on the micro and/or nano-scale and generate tailored surface properties such as:
- Super-hydrophobic surfaces
- Hydrophilic surfaces
- Anti-reflective surfaces
- Anti-bacterial surfaces
- Self-cleaning surfaces
Intelligent surfaces inspired by Nature
The same effect is seen with the new informational display systems in automobiles.
The artificial moth-eye structure is an engineered surface texture that allows a gradual change in optical density as light travels from air into the display, resulting in minimal Fresnel reflection.
The main advantage of Moth-eye surface textures is the ability to mass-produce product through the use of high throughput replication processes.
chemical pigments, etc.
Liquid Repelling Surfaces
Biological micro-structures, such as nano-papilla morphologies on lotus leaves, and needle shaped seta on water strider legs, account for the non-wettability of their biologic surfaces. A water droplet rolls off quickly from a lotus leaf while dust particles do not adhere to it surface. This self-cleaning property of super hydrophobic surfaces (contact angle larger than 150°) could find applications in day to day life providing protection to surfaces and products.
The phenomenon is explained by the fact that hierarchical micro and nano-meter sized structures on surfaces allow air bubbles to fill the valleys of the structure under the droplets and/or dust particles.
Inspired by these natural micro/nano structures, we provide custom tailored biomimetic surfaces over large areas either on hard or on flexible substrates.
Structural Coloured Surfaces
An example of such natural structural colour is butterfly wings, which have been widely studied and artificially reproduced through modern nanofabrication techniques. The size of the unit cells of such passive diffractive elements is in the order of the wavelength of light usually in the sub micro meter range.
Structural colours have attracted great interest because their applications have been rapidly progressing in many fields related to vision, such as the security printing, automobile, cosmetics, and textile industries.
We provide tailored physical structural coloured surfaces which could provide true colour when viewed at a particular angle.
chemical pigments, etc.
Modern application and markets find topographical riblet structures a niche way of addressing drag resistance whether air or liquids are present in the surroundings the surface.
We provide large area micro/nano structured surface which create the desired properties for drag reduction on customized objects and components. Our extensive knowhow on advanced and alternative manufacturing technologies, can be implemented to create micro/nano topographies on various materials either in planar or 3D forms.
Dry Adhesive Surfaces
The physical mechanism relies either on the mechanical attachment of male (or female) to male micro structures or to the Van de Waals forces developed between the opposing surfaces. Bioinspired dry adhesives may change the methods of design in automation and applications which require smart attachment. The disruptive technology based on physical micro/nano textured structures can inexpensively generate easy to use, reversible and reusable attachment systems.
Our expertise in micro/nano manufacturing techniques allows us to generate hierarchical structures suitable for dry adhesive and grip on application in various materials and over large areas.
& APPLICATION FOCUS
Saying that, our technology and product portfolio is not restricted to academic laboratories and alerted proof of concept measures. We have countless examples of demonstrated devices and patterned surfaces emerging vast interest in high growth industries including: