Rootpage > Research Units > Research Departments > Nanobiophotonics


Our team focuses on the research of novel optical (plasmonic) effects on metal and hybrid nanostructures. Plasmonics – “optics on the nanoscale” – is currently one of the fastest developing sciences within nanotechnology. Macroscopically visible effects of conductive nanoscopic objects arising from an induced collective oscillation of conduction electrons are at the center of this research branch. The department concentrates on the manufacture and study of plasmonically active metal nanostructures, in particular nanoparticles made of precious metals. Through the purposeful synthesis of these particles it becomes possible to exactly determine material properties, size, and shape in advance and thus precisely adjust the optical properties in the desired wavelength range (see figure). In addition, using biomolecular components the particles may be transformed into complexes with novel properties and integrated into technical environments (top-down structures). Self-organization of the biomolecules plays a central role in this process. The molecular (bottom up) approach makes it possible to implement innovative, nano-sized functional elements in nanophotonics. Applications of plasmonic constructs in bioanalytics can be found in the potential development of highly sensitive and optically readable detection principles and novel approaches in analytical sensor technology. In modern biomedicine as well these complexes have the potential to contribute to the develop of novel diagnostic and therapeutic approaches. The development of microfluidic and microsystemically technical components and methods enables additional systems solutions to be developed for miniaturized analytics and diagnostics.


  • Hybrid molecul-metal nanostructures for novel sensors and plasmonic  biomarker for bioanalytics, diagnostics and nanobiomanipulation
    • Molecular plasmonics
    • LSPR(localized surface plasmon resonance)-based bioanalytics 
    • Single nanostructure characterization and manipulation 


  • Research on application driven development of lab-on-a-chip systems for biophotonics, spectroscopy and bioanalytics
  • Smart microfluidic operation units for droplet-based microfluidics
  • Preparation of microfluidic devices for biophotonics, spectroscopy and bioanalytics
  • Maintaining and advancing enabling technologies for lab-on-a-chip development for the IPHT community





  • PD Dr.​ Wolfgang​ Fritzsche
    Head of Department
    +49 (0) 3641 · 206-304