Green synthesis of gold nanoparticles using Curcuma pseudomontana isolated curcumin: Its characterization, antimicrobial, antioxidant and anti- inflammatory activities

• Main Authors: N. Muniyappan, M. Pandeeswaran, Augustine Amalraj
• Format: Article
• Language: English
• Published: KeAi Communications Co., Ltd. 2021-01-01
• Series: Environmental Chemistry and Ecotoxicology
• Subjects: Curcuma pseudomontana rhizome; Hill turmeric; Curcumin; Gold nanoparticles; Biological activities
• Online Access: http://www.sciencedirect.com/science/article/pii/S2590182621000035

Green synthesis of gold nanoparticles (AuNPs) has garnered fervent interest due to their implicit biomedical applications. This study reveals the green synthesis of AuNPs and co-functionalization with Curcuma pseudomontana isolated curcumin (CUR). Synthesized curcumin capped nanoparticles (CUR-AuNPs) were stable and evaluated by SEM, HR-TEM, UV–vis and FT-IR spectroscopy and they were spherical in shape, homogenous with an average diameter of 20 nm along with long term stability. The CUR-AuNPs were tested for their antibacterial activity against Pseudomonas aeruginosa, Staphylococcus aureus, Bacillus subtilis and Escherichia coli and displayed significant antibacterial activity. CUR-AuNPs showed maximum inhibition efficiency of 94% by the human red blood cell method. CUR-AuNPs also exhibited significant antioxidant and radical scavenging activities. This study sets a platform for novel synthetic AuNPs formed by utilizing reducing agents in form of isolated curcumin to effectively exploit the biomedical application of the particles.