Surface functionalization for biomedical and technical applications

The Biophotonics Group of the Industrial and Biomedical Optics Department offers the specific modification of surfaces of the most diverse materials in order to impart the desired properties for various biomedical and technical applications:

  • Wettability with liquids
  • Light absorption
  • Tribological properties
  • Biocompatibility


The structuring of material surfaces with ultrashort laser pulses changes their properties in a well-targeted manner. In this way, surfaces can be functionalized to prepare them for diverse applications:

  • Wettability with liquids:
    For example, laser structuring metal imparts superhydrophobic properties to metal surfaces.
  • Light absorption:
    In the same way, the light absorption of semiconductors and metals can be increased significantly with ultrashort laser pulses. This process is, for example, well suited for applications in sensor and solar technology.
  • Tribological properties:
    Anisotropic properties too can be modified with ultrashort laser pulses. In this way, the tribological properties of surfaces can be controlled in a well-targeted way. Furthermore, laser-generated structures on the surfaces can serve as a lubricant depot.
  • Biocompatibility:
    Well-targeted surface structuring makes it possible to improve the biocompatibility of implants and medical devices. The structures generated by an ultrashort pulse laser can have a cell-selective or a cell-repellent function. An in-vitro-testing can be carried out.

This service is, among others, used in the following areas::


  • Structuring

Material groups:

  • Alloys
  • Composites
  • Glass materials
  • Natural materials
  • Metals
  • Plastics
  • Semiconductors

Consulting, development and contract research:

  • Feasibility studies
  • Process and system development
  • Technology consulting and transfer
  • Technology transfer from research to industry

Fields of application and industrial sectors:

  • Aerospace
  • Automotive
  • Electronics
  • Electrical engineering
  • Environmental technology
  • Information and telecommunication
  • Job order production
  • Lighting
  • Medical technology and biotechnology
  • Sensor technology
  • Show technology, advertising and the arts
  • Tool making and mechanical engineering

We will be happy to discuss your individual requirements. Please feel free to contact us.