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Journal of Nanomaterials
Volume 2013, Article ID 563826, 12 pages
Research Article

Raspberry Extract as Both a Stabilizer and a Reducing Agent in Environmentally Friendly Process of Receiving Colloidal Silver

1Cracow University of Technology, Faculty of Chemical Engineering and Technology, Warszawska Street 24, 31-155 Cracow, Poland
2Cracow University of Technology, Faculty of Environmental Engineering, Warszawska Street 24, 31-155 Cracow, Poland

Received 16 June 2013; Accepted 20 August 2013

Academic Editor: Renyun Zhang

Copyright © 2013 Jolanta Pulit et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


An ecofriendly method of nanosilver obtaining has been studied. The process involves the chemical reduction method carried out in aqueous environment. Silver nitrate (V) was applied as a silver ions source. Raspberry extract was used as a natural source of both reducing and stabilizing agents. The total amount of phenolic compounds was determined by the Folin-Ciocalteu method. Obtained nanoparticles were analyzed by the dynamic light scattering technique so as to determine the particles size and suspension stability which was characterized by an electrokinetic potential. The results confirmed that the size of some nanoparticles was under 100 nm.