Nanosilver against fungi. Silver nanoparticles as an effective biocidal factor / Jolanta Pulit, Marcin Banach, Renata Szczygłowska, Mirosław Bryk // Acta Biochimica Polonica : ABP [Dokument elektroniczny]. ... więcej

Nanosilver against fungi. Silver nanoparticles as an effective biocidal factor / Jolanta Pulit, Marcin Banach, Renata Szczygłowska, Mirosław Bryk // Acta Biochimica Polonica : ABP [Dokument elektroniczny]. – 2013, Vol. 60, No. 4, s. 795-798 : fot., tab., wykr. – Tryb dostępu: http://www.actabp.pl/pdf/4_2013/795.pdf. – Bibliogr. s. 798, Streszcz. ang. – Mat. konf.: EUROBIOTECH 2013 : 5th Central European Congress of Life Sciences, Kraków, Poland, 8-11.10.2013. – ISSN 0001-527X

The work presents a method of obtaining an aqueous raspberry extract as well as its physicochemical and analytical characteristics. The paper also contains a description of the method of preparation of ... więcej

The work presents a method of obtaining an aqueous raspberry extract as well as its physicochemical and analytical characteristics. The paper also contains a description of the method of preparation of nanosilver suspensions based on this extract. The raspberry extract served as a source of phenolic compounds which acted as both reducing and stabilizing agents. Suspensions of silver nanoparticles were obtained with the use of chemical reduction method. The silver ions concentration, pH value and temperature of samples incubation were independent variables. The next step of the research was to measure the antifungal activity of the received silver nanoparticles as well as to perform a mycological efficacy resistance analysis of the tested preparations in relation to different concentrations of nanostructured silver. Tests were conducted in compliance with the Eucast guidelines. The results of microbiological study of (the samples') biocidal effect against Cladosporium cladosporoides and Aspergillus niger are described. It was found that using nanosilver suspension at the concentration of 50 ppm inhibited the growth of Cladosporium cladosporoides and Aspergillus niger by 90% and 70%, respectively.