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Updated: Mar 10, 2026
Gold Nanostar Synthesis with a Silver Seed Mediated Growth Method
Published on: January 15, 2012
Green synthesis of gold and silver nanoparticles using aqueous extract of Cibotium barometz root
Dandan Wang1, Josua Markus2, Chao Wang1
1a Department of Oriental Medicine Biotechnology and Ginseng Bank, College of Life Science , Kyung Hee University , Yongin , Republic of Korea.
Abstract:
Green synthesis of gold (CB-AuNps) and silver (CB-AgNps) nanoparticles using Cibotium barometz root extract was highlighted. CB-AuNps were synthesized almost instantly and CB-AgNps were formed after 25 min in a heated aqueous extract. The formation of CB-AuNps and CB-AgNps was detected at 548 and 412 nm; they were spherical with crystallite sizes of 6 nm and 23 nm, respectively. CB-AgNps were further investigated for their antimicrobial activity against Escherichia, Staphylococcus aureus, Salmonella enterica, and Pseudomonas aeruginosa. Furthermore, scavenging activity against 1,1-diphenyl-2-picrylhydrzyl (DPPH) free radicals was demonstrated. Lastly, the cytotoxic properties of CB-AuNps and CB-AgNps were explored in murine macrophages (RAW264.7) cells and MCF-7 breast cancer cells. This study demonstrated the prospective biomedical applications of CB-AuNps and CB-AgNps as antioxidant, antimicrobial agents, and drug-delivery agents.
