Laser drilled silicon filters for use in microplastics filtration and

#microplastics #silicon filter #IR analysis
Silicon filter as optimal substrate for optical spectroscopic analysis. The silicon substrate, polished on both sides, is optimally suited for optical analysis with FT-IR or Raman spectroscopy due to its roughness (<10 nm), and for the investigation of polymer-based particles due to its broadband IR transparency.
Laser-processed silicon filter for the analysis of microplastic particles

Microplastic particles in water are an increasing problem for the environment. A smart silicon wafer-based filter system that makes it faster and easier to measure water pollution was developed by the Fraunhofer Center for Silicon Photovoltaics CSP together with partners in the RUSEKU research project.

At present, there is a lack of methods for efficient and reliable sampling for the systematic investigation of sources, pathways and effects on the environment. In particular, selective filters for rapid microplastic analysis are needed.

The Fraunhofer Center for Silicon Photovoltaics CSP in cooperation with SmartMembranes GmbH offers smart filter systems for rapid microplastic analysis based on silicon as well as alternative materials (Al2O3, glass). The filters (pat. pend.) are part of a special cascade filter system and a central component for a future standardized and uncomplicated sample collection procedure. In addition, the "Smart Sampling" filters are suitable for subsequent microplastic rapid analysis to determine particle sizes and plastic types.

Water resource: Drinking water, Groundwater, Process water, Rainwater, Salt water, Treated water
Type of product:
  • Monitoring & analytics
TRL: 7
    TRL (Technology Readiness Level)
  • TRL 1 - Basic principles observed
  • TRL 2 - Technology concept formulated
  • TRL 3 - Experimental proof of concept
  • TRL 4 - Technology validated in lab
  • TRL 5 - Technology validated in relevant environment (industrially relevant environment in the case of key enabling technologies)
  • TRL 6 - Technology demonstrated in relevant environment (industrially relevant environment in the case of key enabling technologies)
  • TRL 7 - System prototype demonstration in operational environment
  • TRL 8 - System complete and qualified
  • TRL 9 - Actual system proven in operational environment (competitive manufacturing in the case of key enabling technologies; or in space)
Application sector: Agriculture, Cities and municipalities, Industry, Natural water environment, Water resource management
Funding measure: Plastics in the environment
Project: RUSEKU

Contact and partners

Logo Fraunhofer-Center für Silizium-Photovoltaik (CSP)
  • Fraunhofer-Center für Silizium-Photovoltaik (CSP),
  • Otto-Eißfeldt-Str. 12,
  • 06120 Halle (Saale)

Fraunhofer-Center für Silizium-Photovoltaik (CSP),
Halle (Saale)

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