Antiviral and antibacterial textiles functionalized with natural biologically active dye

Summary of the technology

The University of Ljubljana developed functionalized coloured textiles with antiviral and antibacterial properties based on emodin and its derivatives.

Details of the Technology Offer


Antimicrobial functionalization of textile materials used in everyday and life applications is extremely important as it reduces microbial infections, decreases unpleasant odors, and prolongs the life of consumers’ products. Emodin is a natural yellow pigment found in many plants, lichens, and molds. It is a biologically active compound and a potential source for functionalizing textiles, ensuring antimicrobial properties.

Description of the Invention

The University of Ljubljana developed functionalized coloured textiles with antiviral and antibacterial properties based on emodin and its derivatives. Emodin was chemically modified by introducing different functional groups that affect its colour, textile adsorption, antibacterial (MSSA) and antiviral (human coronavirus NL63, the best model for SARS-CoV-2) properties.

The different colours of the new compounds, their good binding properties and their antiviral and antibacterial activities represent a great potential for their use in various products such as filters, ventilation systems, protective clothing for medical personnel and laboratories, sports equipment, etc.

Main advantages

  • Easy modification of the natural dye and active ingredient emodin.
  • Emodin and its derivatives yield a wide range of dyes from yellow, orange, violet to brown.
  • Modified emodin compounds can be easily incorporated into textile materials. Adsorption of dyes is excellent, and its washability is high.
  • Emodins have excellent antiviral activity against human coronavirus HCoV-NL63 (similar to SARS-CoV-2).
  • Textile materials functionalized with emodin have antibacterial activity against S. aureus (MSSA).

Intellectual property status

  • Patent already applied for.
  • Patent application number: LU500249
  • Where: Luxembourg

Current development status:Laboratory prototype

Desired business relationship

  • Patent licensing
  • Technology development

Attached documents

Related Keywords

  • Advanced Textile Materials
  • Textiles Technology
  • Dyeing related to Textiles Technology
  • Protecting Man and Environment
  • Safety
  • Sustainability
  • Fine Chemicals, Dyes and Inks
  • Colours, dyes related to Chemical Technology and engineering
  • Dyes related to Footwear / Leather Technology
  • Covid-19
  • filtration
  • protective clothing
  • ventilation
  • climatisation
  • laboratory clothing

About University of Ljubljana

The Knowledge Transfer Office of the University of Ljubljana acts as a bridge between the fields of research and business. We support researchers and students with ideas and potential innovations, while also acting as an access point for companies on the lookout for technology, knowledge, or project partnerships.

Our main objective is to encourage and support various forms of knowledge transfer to the business sector and thus society.

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