Green synthesis of gold nanoparticles using Curcuma pseudomontana isolated curcumin: Its characterization, antimicrobial, antioxidant and anti- inflammatory activities
Nalluchamy Muniyappan, M. Pandeeswaran, Augustine Amalraj
Abstract
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.