Method of obtaining metal nanoparticles and metal nanoparticles

The invention describes a simple green method of synthesis of silver (Ag) nanocomposites using brewery wastes from two different stages of the brewing process. Herein the mentioned wastes are not being industrially utilized. Depending on the waste type and synthesis temperature, and time, the nanocomposites consist of aggregated Ag3PO4, AgCl, and Ag nanoparticles in various quantities. The nanocrystallites size is about 12.5- 28.9 nm for Ag3PO4, 6.4- 27.1 nm for AgCl, and 4.3- 9.5 nm for Ag.  The size of aggregates is around 20- 310 nm.


Alcina Sudagar, Neha Rangam, Paweł Borowicz, Beata Lesiak-Orłowska, Laszlo Kövér, Jozsef Tóth

Advantages / Innovative aspects

  • Waste utilization and valorization
  • Green synthesis of Ag nanoparticles
  • Cost-efficient synthesis considering time and temperature of synthesis
  • Biocompatible products


  • Additive product for antibacterial specimens
  • Anticancer product
  • Electrocatalytic applications for oxygen reduction

State of the progress
stage of research

Intellectual property rights
Patent application in Poland

This project has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No. 711859.