“Green” Synthesis of Gold and Silver Nanoparticles with Propolis Extract and Rosa damascena Waste

Authors : Anton M SLAVOV, Daniela KARASHANOVA, Biliana GEORGIEVA, İvelina VASILEVA, Vassya BANKOVA, Rada DINKOVA, Nikoleta YANTCHEVA

Pages : 71-71

View : 10 | Download : 13

Publication Date : 2018-12-08

Article Type : Conference Paper

Abstract :Propolis has been used in the traditional medicine for more than 2000 years. It is a treasured medicine due to its antifungal, antiviral, antitumor, immunomodulatory and anti-inflammatory properties. Additionally, due to its antibacterial and antioxidant activity, propolis is a potential candidate for “green” synthesis of nanoparticles insert ignore into journalissuearticles values(NPs); or/and composite materials with potential medical applications 1 . Hence, the aim of the present study was focused on biogenic synthesis of gold and silver nanoparticles with propolis extract. A commercial Bulgarian poplar propolis extract was used. The composition of the extract was investigated by GC-MS. The synthesis was followed by visual observations and UV-Vis studies. The morphology and characteristics of the NPs were determined by transmission electron microscopy insert ignore into journalissuearticles values(TEM);. Both, gold and silver nanoparticles were successfully obtained in situ in a simple, one stage process, with the propolis extract. Compared to plant extract from Rosa damascena waste insert ignore into journalissuearticles values(able to reduce the Ag + and Au 3+ in 2-3 minutes);, the visual process of synthesis took 120 and 3 minutes, for silver and gold nanoparticles, respectively. The TEM studies confirmed the АgNPs and AuNPs synthesis with Bulgarian propolis extract. The GC-MS analysis revealed that the propolis was rich in flavonoids insert ignore into journalissuearticles values(pinobaksin, pinocembrin, chrysin, quercetin, kaempferol and their derivatives);. The present study clearly demonstrated the potential of propolis extract for “green” synthesis of gold and silver NPs. Acknowledgements: We acknowledge the financial support from the National Science Fund of Bulgaria; project DN 17/22 “Valorization and application of essential oil industry wastes for “green” synthesis of metal nanoparticles”.
Keywords : Propolis, UV Vis, GC MS, Nanoparticle