TY - JOUR AU - Singh, Darshan AU - Rawat, Deepti AU - Isha PY - 2016 DA - 2016/03/16 TI - Microwave-assisted synthesis of silver nanoparticles from Origanum majorana and Citrus sinensis leaf and their antibacterial activity: a green chemistry approach JO - Bioresources and Bioprocessing SP - 14 VL - 3 IS - 1 AB - Silver nanoparticles (SNPs) play important role in the field of optics and electronics and also as a novel antibacterial agents. Here, we report a simple and green method for the biosynthesis of SNPs using aqueous leaf extract of Origanum majorana and Citrus sinensis as a novel bio source of cost-effective, non-hazardous reducing, and stabilizing agents. A 3 mM solution of silver nitrate was prepared. Five milliliter aqueous leaf extract was slowly added to 20 ml silver salt solution (3 mM) with constant stirring. No noticeable color change was observed. The solution was then heated in domestic microwave for variable time intervals. The intense brown colored solution was obtained on 1 min heating with O. majorana and 5 min heating with C. sinensis extract. The intense brown color indicated the formation of SNPs. The antibacterial activity of synthesized SNPs was investigated. SN - 2197-4365 UR - https://doi.org/10.1186/s40643-016-0090-z DO - 10.1186/s40643-016-0090-z ID - Singh2016 ER -